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PODynamic URLs on Struts 2
 

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    <p>I'm creating an application using Struts2 and I want to have friendly URLs.</p> <p>Si, i set the following params in struts.xml:</p> <pre><code>&lt;constant name="struts.action.extension" value=""/&gt; &lt;constant name="struts.enable.SlashesInActionNames" value="true"/&gt; &lt;constant name="struts.mapper.alwaysSelectFullNamespace" value="false"/&gt; </code></pre> <p>and my actions:</p> <pre><code>&lt;package name="notes" namespace="/notes" extends="struts-default"&gt; &lt;action name="/*/*" class="action.ViewNoteAction"&gt; &lt;param name="title"&gt;{1}&lt;/param&gt; &lt;param name="id"&gt;{2}&lt;/param&gt; &lt;result&gt;/Notes/view.jsp&lt;/result&gt; &lt;/action&gt; &lt;/package&gt; </code></pre> <p>But, when i hit the url <a href="http://localhost/notes/welcome/1" rel="nofollow">http://localhost/notes/welcome/1</a> i got this error:</p> <blockquote> <p>Servlet.service() for servlet default threw exception java.lang.NullPointerException</p> </blockquote> <p>any idea? What I'm doing wrong? I'm using struts 2.0.14... Thanks.</p> <p>Here is the full stack trace:</p> <blockquote> <p>WARNING: StandardWrapperValve[default]: PWC1406: Servlet.service() for servlet default threw exception java.lang.NullPointerException at com.opensymphony.xwork2.config.impl.ActionConfigMatcher.convertActionConfig(ActionConfigMatcher.java:168) at com.opensymphony.xwork2.config.impl.ActionConfigMatcher.match(ActionConfigMatcher.java:144) at com.opensymphony.xwork2.config.impl.DefaultConfiguration$RuntimeConfigurationImpl.getActionConfig(DefaultConfiguration.java:297) at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:169) at org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:41) at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:494) at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:422) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:277) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641) at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97) at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:332) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:233) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165) at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791) at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693) at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954) at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170) at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88) at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76) at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53) at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57) at com.sun.grizzly.ContextTask.run(ContextTask.java:69) at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330) at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309) at java.lang.Thread.run(Thread.java:637)</p> </blockquote> <p>Thanks.</p>
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