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Database connectivity in Liferay

cya k, modificado 11 Anos atrás.

Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
I am new to Liferay and have been using it for last two weeks. I was trying to make connection to the database. (I am using MySQL database and Eclipse Indigo IDE) The creation of a table in the database worked well where I created the service.xml file and ran the build service. The table was created successfully.
I tried adding the following method in crudAdminPortlet.java under docroot/WEB-INF/src/comcrud/internet/cruddisplay/portlet (I had to create this package since it wasn't created through service builder)

public List<CRUD> getAllProducts(long groupId) throws SystemException {
CRUDPersistenceImpl CRUDPersistence = null;
List<CRUD> products =
CRUDPersistence.findByGroupId(groupId);
return crud;
}

This is my view.jsp file..

<%
/**
* Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
%>

<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %>
<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %>

<%@ taglib uri="http://liferay.com/tld/aui" prefix="aui" %>
<%@ taglib uri="http://liferay.com/tld/ui" prefix="liferay-ui" %>
<%@ page import="com.liferay.portal.kernel.util.ListUtil" %>
<%@ page import="java.util.List" %>
<%@ page import="com.crud.internet.cruddisplay.*" %>
<%@ page import="com.crud.internet.cruddisplay.model.CRUD" %>
<%@ page import="com.crud.internet.cruddisplay.portlet.ActionUtil,com.crud.internet.cruddisplay.portlet.crudAdminPortlet" %>

<portlet:defineObjects />





<portlet:actionURL name="addProduct" var="addProductURL"/>
<aui:form action="<%= addProductURL.toString() %>" method="post">
<aui:fieldset>
<aui:input name="productId" size="45" />
<aui:input name="productName" size="45" />
<aui:button-row>
<aui:button type="submit" />
</aui:button-row>
</aui:fieldset>
</aui:form>

before search container
<liferay-ui:search-container emptyResultsMessage="there-are-no-products" delta="5">
in search container

<liferay-ui:search-container-results>

</liferay-ui:search-container-results>




</liferay-ui:search-container>

after search container


When I deploy the project on localhost I get the the message: Portlet temporarily unavailable.

Is there something that I am missing?
Ankit ankit, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Junior Member Postagens: 46 Data de Entrada: 18/10/12 Postagens Recentes
Hi cya k

There should be some error in your log file, look into that, you will get idea also emoticon

Thanks
Ankit
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
Hi Ankit,

Yes I had checked my log file.
The error was that the method wasn't found in the portlet class : com.liferay.util.bridges.mvc.MVCPortlet

which I agree because I did not include the com.crud.internet.cruddisplay.portlet in portlet.xml undet <portlet-class>where the class crudAdminPortlet.java is located.
But if I remove <portlet-class>com.liferay.util.bridges.mvc.MVCPortlet</portlet-class> and instead put <portlet-class>com.crud.internet.cruddisplay.portlet</portlet-class>
nothing is displayed in my control panel. Also I am not able to add two portlet classes in portlet.xml
Ankit ankit, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Junior Member Postagens: 46 Data de Entrada: 18/10/12 Postagens Recentes
Hi cya k,

Do you extending MVCPortlet class to your com.crud.internet.cruddisplay.portlet class ?
If not then try to extending MVCPortlet class and try to put that class in <portlet-class> tag....

Thanks,
Ankit
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
Hey Ankit,

Tried but it doesn't work. I'm still getting the same error message.
Ankit ankit, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Junior Member Postagens: 46 Data de Entrada: 18/10/12 Postagens Recentes
Hi cya k,

You should be extends the MVCPortlet to your portlet class and provide in your <portlet-class> tag in your portlet.xml..
Can you paste your full error message that shows in your log file ?

Thanks,
Ankit
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
Hey Ankit,
I have modified the code n yeah, the error which I was getting before extending the mvcclass is gone.. thanks..

Can you paste the code snippet of search container in view.jsp for displaying data from database?

I will change the portlet make some changes and let you know the errors I get .
btw thanks again for the suggestion to include mvc class.. do paste the code snippet to display data from database if possible
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
And yeah Ankit... I extended the mvc class as follows in com.crud.internet.cruddisplay.portlet.crudAdminPortlet:
public class crudAdminPortlet extends MVCPortlet {
.......
..
}

in portlet.xml i added
<portlet-class>com.crud.internet.cruddisplay.portlet.crudAdminPortlet</portlet-class>
Ankit ankit, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Junior Member Postagens: 46 Data de Entrada: 18/10/12 Postagens Recentes
look at this link, u will get idea...http://www.liferay.com/community/wiki/-/wiki/Main/SearchContainer

Thanks,
Ankit
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
Thanks for the link Ankit..

I removed the search container code since it didn't display any data.

Here is the error I am getting after some modifications.

09:21:13,383 ERROR [http-bio-8080-exec-7][render_portlet_jsp:154] java.lang.NullPointerException
at com.crud.internet.cruddisplay.portlet.CRUDValidator.validateProduct(CRUDValidator.java:13)
at com.crud.internet.cruddisplay.portlet.crudAdminPortlet.addProduct(crudAdminPortlet.java:25)
at com.liferay.portal.kernel.portlet.LiferayPortlet.callActionMethod(LiferayPortlet.java:153)
at com.liferay.util.bridges.mvc.MVCPortlet.callActionMethod(MVCPortlet.java:250)
at com.liferay.portal.kernel.portlet.LiferayPortlet.processAction(LiferayPortlet.java:80)
at com.liferay.util.bridges.mvc.MVCPortlet.processAction(MVCPortlet.java:220)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:70)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:48)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:534)



I may have made some silly errors.


Here is my search container code:


<liferay-ui:search-container
emptyResultsMessage="there-are-no-products"
delta="5">
<liferay-ui:search-container-results>
<%
List<CRUD> tempResults = ActionUtil.getProducts(renderRequest);
results = ListUtil.subList(
tempResults, searchContainer.getStart(), searchContainer.getEnd());
total = tempResults.size();
pageContext.setAttribute("results", results);
pageContext.setAttribute("total", total);
%>
</liferay-ui:search-container-results>
<liferay-ui:search-container-row
className="com.crud.internet.cruddisplay.model.CRUD"
keyProperty="productId"
modelVar="product">
<liferay-ui:search-container-column-text
name="product-name"
property="productName"
/>

I removed this snippet of code . getProducts function was showing error and I do not know how to implement that function in ActionUtil class..
I removed this snippet since getProducts function was giving error and I do not know how to implement tht
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
Here is the complete error:


Feb 2, 2013 9:21:13 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet CRUDDisplay Servlet threw exception
java.lang.NullPointerException
at com.crud.internet.cruddisplay.portlet.CRUDValidator.validateProduct(CRUDValidator.java:13)
at com.crud.internet.cruddisplay.portlet.crudAdminPortlet.addProduct(crudAdminPortlet.java:25)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.liferay.portal.kernel.portlet.LiferayPortlet.callActionMethod(LiferayPortlet.java:153)
at com.liferay.util.bridges.mvc.MVCPortlet.callActionMethod(MVCPortlet.java:250)
at com.liferay.portal.kernel.portlet.LiferayPortlet.processAction(LiferayPortlet.java:80)
at com.liferay.util.bridges.mvc.MVCPortlet.processAction(MVCPortlet.java:220)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:70)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:48)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:534)
at com.liferay.portlet.InvokerPortletImpl.invokeAction(InvokerPortletImpl.java:579)
at com.liferay.portlet.InvokerPortletImpl.processAction(InvokerPortletImpl.java:294)
at com.liferay.portal.action.LayoutAction.processPortletRequest(LayoutAction.java:944)
at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:688)
at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:249)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:176)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:560)
at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:537)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:294)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:138)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:335)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:123)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:294)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:241)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:246)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.sso.ntlm.NtlmPostFilter.processFilter(NtlmPostFilter.java:83)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:80)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:216)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:187)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:167)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:167)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:187)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
09:21:13,383 ERROR [http-bio-8080-exec-7][render_portlet_jsp:154] java.lang.NullPointerException
at com.crud.internet.cruddisplay.portlet.CRUDValidator.validateProduct(CRUDValidator.java:13)
at com.crud.internet.cruddisplay.portlet.crudAdminPortlet.addProduct(crudAdminPortlet.java:25)
at com.liferay.portal.kernel.portlet.LiferayPortlet.callActionMethod(LiferayPortlet.java:153)
at com.liferay.util.bridges.mvc.MVCPortlet.callActionMethod(MVCPortlet.java:250)
at com.liferay.portal.kernel.portlet.LiferayPortlet.processAction(LiferayPortlet.java:80)
at com.liferay.util.bridges.mvc.MVCPortlet.processAction(MVCPortlet.java:220)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:70)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:48)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:534)
David Ilechukwu, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 154 Data de Entrada: 07/06/10 Postagens Recentes
Cya- turns out implementing getProducts in your ActionUtil - might actually be easier than you think. Could you try the following code snippet and let us know if it worked?


public List getProducts(){
     java.util.List products;
     try{
           products = ProductLocalServiceUtil.getProducts()
     }catch(SystemException se){
             products = Collections.EMPTY_LIST;
    }
    return products;
}


Generally - you could followthe same patternabove for doing similar things in Liferay. Please let me know if it worked.
Then we could take a look at the errors in your log (if they don't automatically vanish after implementing the method above)

Cheers, David
thumbnail
David H Nebinger, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Liferay Legend Postagens: 14915 Data de Entrada: 02/09/06 Postagens Recentes
cya k:
09:21:13,383 ERROR [http-bio-8080-exec-7][render_portlet_jsp:154] java.lang.NullPointerException
at com.crud.internet.cruddisplay.portlet.CRUDValidator.validateProduct(CRUDValidator.java:13)


Seems pretty clear to me, you have a null value that CRUDValidator is not handling correctly. So what does line 13 say?
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
David Ilechukwu:
I implemented the function getProducts() as:

public List getProduct(){
java.util.List products;
try{
products = CRUDLocalServiceUtil.getProduct()
}catch(SystemException se){
products = Collections.EMPTY_LIST;
}
return products;

}

in the Actionutil class which is in package com.crud.internet.cruddisplay.portlet
I still get an error " The method getProduct() is undefined for the type CRUDLocalServiceUtil"

David H Nebinger:

The line 13 in CRUDValidator is as follows:

errors.add("product-name-required");

The entire loop is as follows:
if (Validator.isNull(product.getProductName())) {
errors.add("product-name-required");
valid = false;
}
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
David H Nebinger and David Ilechukwu
Here is the error I get:

An error occurred at line: 52 in the jsp file: /view.jsp
Cannot make a static reference to the non-static method getProduct() from the type ActionUtil
49: <liferay-ui:search-container-results>
50:
51: <%
52: List <CRUD> tempResults = ActionUtil.getProduct();
53: results = ListUtil.subList(
54: tempResults, searchContainer.getStart(),searchContainer.getEnd());
55: total = tempResults.size();


Stacktrace:
javax.portlet.PortletException: org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: 52 in the jsp file: /view.jsp
Cannot make a static reference to the non-static method getProduct() from the type ActionUtil
49: <liferay-ui:search-container-results>
50:
51: <%
52: List <CRUD> tempResults = ActionUtil.getProduct();
53: results = ListUtil.subList(
54: tempResults, searchContainer.getStart(),searchContainer.getEnd());
55: total = tempResults.size();


Stacktrace:
at com.liferay.portlet.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:110)
at com.liferay.util.bridges.mvc.MVCPortlet.include(MVCPortlet.java:367)
at com.liferay.util.bridges.mvc.MVCPortlet.include(MVCPortlet.java:383)
at com.liferay.util.bridges.mvc.MVCPortlet.doView(MVCPortlet.java:145)
at com.liferay.portal.kernel.portlet.LiferayPortlet.doDispatch(LiferayPortlet.java:218)
at com.liferay.util.bridges.mvc.MVCPortlet.doDispatch(MVCPortlet.java:319)
at javax.portlet.GenericPortlet.render(GenericPortlet.java:233)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:64)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:534)
at com.liferay.portlet.InvokerPortletImpl.invokeRender(InvokerPortletImpl.java:607)
at com.liferay.portlet.InvokerPortletImpl.render(InvokerPortletImpl.java:359)
at org.apache.jsp.html.portal.render_005fportlet_jsp._jspService(render_005fportlet_jsp.java:1207)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at com.liferay.portal.servlet.DirectRequestDispatcher.include(DirectRequestDispatcher.java:97)
at com.liferay.portal.servlet.PACLRequestDispatcherWrapper.doDispatch(PACLRequestDispatcherWrapper.java:90)
at com.liferay.portal.servlet.PACLRequestDispatcherWrapper.include(PACLRequestDispatcherWrapper.java:54)
at com.liferay.portal.util.PortalImpl.renderPortlet(PortalImpl.java:5158)
at com.liferay.portal.util.PortalUtil.renderPortlet(PortalUtil.java:1569)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processPortlet(RuntimePortletImpl.java:165)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processPortlet(RuntimePortletImpl.java:203)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processPortlet(RuntimePortletImpl.java:190)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletUtil.processPortlet(RuntimePortletUtil.java:87)
at com.liferay.portlet.layoutconfiguration.util.velocity.TemplateProcessor.processMax(TemplateProcessor.java:165)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:389)
at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:378)
at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:270)
at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:262)
at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:342)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
at org.apache.velocity.Template.merge(Template.java:328)
at org.apache.velocity.Template.merge(Template.java:235)
at org.apache.velocity.app.VelocityEngine.mergeTemplate(VelocityEngine.java:381)
at com.liferay.portal.velocity.VelocityEngineImpl.mergeTemplate(VelocityEngineImpl.java:264)
at com.liferay.portal.kernel.velocity.VelocityEngineUtil.mergeTemplate(VelocityEngineUtil.java:73)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.doProcessTemplate(RuntimePortletImpl.java:499)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.doDispatch(RuntimePortletImpl.java:394)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletImpl.processTemplate(RuntimePortletImpl.java:228)
at com.liferay.portlet.layoutconfiguration.util.RuntimePortletUtil.processTemplate(RuntimePortletUtil.java:125)
at org.apache.jsp.html.portal.layout.view.control_005fpanel_jsp._jspService(control_005fpanel_jsp.java:676)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
at com.liferay.portal.action.LayoutAction.includeLayoutContent(LayoutAction.java:468)
at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:735)
at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:249)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:176)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:560)
at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:537)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:294)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:138)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:335)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:123)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:294)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:241)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:246)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.sso.ntlm.NtlmPostFilter.processFilter(NtlmPostFilter.java:83)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:80)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:216)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:187)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:167)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:167)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:187)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: 52 in the jsp file: /view.jsp
Cannot make a static reference to the non-static method getProduct() from the type ActionUtil
49: <liferay-ui:search-container-results>
50:
51: <%
52: List <CRUD> tempResults = ActionUtil.getProduct();
53: results = ListUtil.subList(
54: tempResults, searchContainer.getStart(),searchContainer.getEnd());
55: total = tempResults.size();
Ankit ankit, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Junior Member Postagens: 46 Data de Entrada: 18/10/12 Postagens Recentes
Hi cya k,

cya k:

An error occurred at line: 52 in the jsp file: /view.jsp
Cannot make a static reference to the non-static method getProduct() from the type ActionUtil
49: <liferay-ui:search-container-results>
50:
51: <%
52: List <CRUD> tempResults = ActionUtil.getProduct();
53: results = ListUtil.subList(
54: tempResults, searchContainer.getStart(),searchContainer.getEnd());
55: total = tempResults.size();


its a java stuff, it clearly saying that, cannot make a static reference to the non-static method,
Your getProduct() method is not static , so you can't directly use as a static way, make object of ActionUtil then use that method or make getProduct() method static.
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
Ankit Ankit,
thanks that error is resolved.
My ActionUtil class in com.crud.internet.cruddisplay.portlet has the following function:

public static List getProduct(){
java.util.List products;
try{
products = CRUDLocalServiceUtil.getProduct()
}catch(SystemException se){
products = Collections.EMPTY_LIST;
}
return products;

}

And the error I get is: The method getProduct() is undefined for the type CRUDLocalServiceUtil

How should I define the function in CRUDLocalServiceUtil?? Is it the same like I have defined in ActionUtil?
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
Also when I try to add products to the database I get the following error ::

Feb 4, 2013 4:47:50 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet CRUDDisplay Servlet threw exception
java.lang.NullPointerException
at com.crud.internet.cruddisplay.portlet.CRUDValidator.validateProduct(CRUDValidator.java:13)
at com.crud.internet.cruddisplay.portlet.crudAdminPortlet.addProduct(crudAdminPortlet.java:30)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.liferay.portal.kernel.portlet.LiferayPortlet.callActionMethod(LiferayPortlet.java:153)
at com.liferay.util.bridges.mvc.MVCPortlet.callActionMethod(MVCPortlet.java:250)
at com.liferay.portal.kernel.portlet.LiferayPortlet.processAction(LiferayPortlet.java:80)
at com.liferay.util.bridges.mvc.MVCPortlet.processAction(MVCPortlet.java:220)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:70)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:48)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:534)
at com.liferay.portlet.InvokerPortletImpl.invokeAction(InvokerPortletImpl.java:579)
at com.liferay.portlet.InvokerPortletImpl.processAction(InvokerPortletImpl.java:294)
at com.liferay.portal.action.LayoutAction.processPortletRequest(LayoutAction.java:944)
at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:688)
at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:249)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:176)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:560)
at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:537)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:294)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:138)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:335)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:123)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:294)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:241)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:246)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.sso.ntlm.NtlmPostFilter.processFilter(NtlmPostFilter.java:83)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:80)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:163)
at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:216)
at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:57)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:187)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:206)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:108)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:167)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:167)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:116)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:187)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:95)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
04:47:51,072 ERROR [http-bio-8080-exec-5][render_portlet_jsp:154] java.lang.NullPointerException
at com.crud.internet.cruddisplay.portlet.CRUDValidator.validateProduct(CRUDValidator.java:13)
at com.crud.internet.cruddisplay.portlet.crudAdminPortlet.addProduct(crudAdminPortlet.java:30)
at com.liferay.portal.kernel.portlet.LiferayPortlet.callActionMethod(LiferayPortlet.java:153)
at com.liferay.util.bridges.mvc.MVCPortlet.callActionMethod(MVCPortlet.java:250)
at com.liferay.portal.kernel.portlet.LiferayPortlet.processAction(LiferayPortlet.java:80)
at com.liferay.util.bridges.mvc.MVCPortlet.processAction(MVCPortlet.java:220)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:70)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:48)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:534)
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
Line 13 is as follows:
if (Validator.isNull(product.getProductName())) {

The following is the entire loop:
if (Validator.isNull(product.getProductName())) {
errors.add("product-name-required");
valid = false;
}

If I comment the Validate code I get the following error:

at com.crud.internet.cruddisplay.portlet.crudAdminPortlet.addProduct(crudAdminPortlet.java:32)
LINE 32 in crudAdminPortlet: emoticon
CRUDLocalServiceUtil.addProduct(
product,themeDisplay.getUserId());
cya k, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
David H Nebinger: Thanks for pointing out my mistake emoticon
I think I know why it is throwing nullpointerexcpetion; emoticon

This is my function --
public void addProduct(ActionRequest request, ActionResponse response)
throws Exception {
ThemeDisplay themeDisplay =
(ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);
CRUD product = ActionUtil.productFromRequest(request);
ArrayList<String> errors = new ArrayList<String>();
if (CRUDValidator.validateProduct(product, errors)) {
CRUDLocalServiceUtil.addProduct(product,themeDisplay.getUserId());
SessionMessages.add(request, "product-saved-successfully");
}
else {
SessionErrors.add(request, "fields-required");
}
}

The statement : CRUD product = ActionUtil.productFromRequest(request); takes a null value because my function "productFromRequest(request)" in ActionUtil returns a null value. I had left it without implementation with a return null statement since I do not know how to implement that function
David Ilechukwu, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 154 Data de Entrada: 07/06/10 Postagens Recentes
productFromRequest(request) seems like quite an easy method to implement.


    public static PRProduct productFromRequest (ActionRequest request) {
       ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);
       PRProduct product = new PRProductImpl();

       product.setCompanyId(themeDisplay.getCompanyId());
       product.setGroupId(themeDisplay.getScopeGroupId());
       product.setProductName(ParamUtil.getString(request, "productName"));
       product.setSerialNumber(ParamUtil.getString(request, "productSerial"));

       return product;
    }


Where exactly are you having the issues?
Seeya S Kudtarker, modificado 11 Anos atrás.

RE: Database connectivity in Liferay

Regular Member Postagens: 187 Data de Entrada: 16/01/13 Postagens Recentes
David Ilechukwu:

Sorry for the late reply.
I solved this issue long time back.

Thanks for your reply and help!!

Regards

Seeya