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DWR and Struts2
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DWR and Struts2
by Rafael Rech
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Hi,
I´m trying to make integrate DWR to Struts2. I took a look in the DWR to Web Work integration and did some similar setup, but something is not working properly. Following is what I accomplished so far and following is the error I´m getting. Let´s see if somebody could help me. web.xml ---------- <display-name>StrutsWeb</display-name> <filter> <filter-name>struts2</filter-name> <filter-class> org.apache.struts2.dispatcher.FilterDispatcher </filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <display-name>DWR Servlet</display-name> <servlet-name>dwr-invoker</servlet-name> <servlet-class> org.directwebremoting.servlet.DwrServlet </servlet-class> <init-param> <param-name>debug</param-name> <param-value>true</param-value> </init-param> <init-param> <param-name>exposeInternals</param-name> <param-value>true</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>dwr-invoker</servlet-name> <url-pattern>/dwr/*</url-pattern> </servlet-mapping> dwr.xml ---------- <dwr> <allow> <create creator="none" javascript="DWRAction"> <include method="execute" /> </create> <convert converter="bean" match="org.directwebremoting.webwork.ActionDefinition"> </convert> <convert converter="bean" match="org.directwebremoting.webwork.AjaxResult" /> </allow> </dwr> struts.xml ------------ <package name="default" extends="struts-default"> <action name="AreaSistema" class="test.AreaSistemaAction" method="list"> <result>combo.jsp</result> </action> <action name="*"> <result>{1}.jsp</result> </action> </package> JSP ---- <%@ page language="java" contentType="text/html" pageEncoding="ISO-8859-1"%> <%@ taglib prefix="s" uri="/struts-tags" %> <html> <head> <script type="text/javascript" src='./dwr/engine.js'></script> <script type="text/javascript" src='./dwr/util.js'></script> <script type="text/javascript" src='./dwr/interface/DWRAction.js'></script> <script type="text/javascript" src='./scripts/DWRActionUtil.js'></script> <script language="JavaScript" type="text/javascript"> var cbf = function done(data) { alert('came here'); } function doValidate() { DWRActionUtil.execute({ namespace:'default', action:'AreaSistema', method:'list', executeResult:'false' }, {}, cbf); alert('OH YEAH BABE'); } </script> </head> <body> <button onclick="doValidate()">BTN</button> </body> </html> AreaSistemaAction.java ----------------------------- public class AreaSistemaAction extends ActionSupport { public String list() { System.out.println("AreaSistemaAction.list()"); try { // some code here } catch(Exception ignore) { ignore.printStackTrace(); return ERROR; } System.out.println("AreaSistemaAction.list() 6"); return SUCCESS; } public String execute() throws Exception { System.out.println("AreaSistemaAction.execute()"); return list(); } } -------- Unfortunately what is being executed is the DWRAction.execute() method, not the AreaSistemaAction.list() and I´m getting the following stack: 16:06:46,421 INFO [DefaultRemoter] Exec: DWRAction.execute() 16:06:46,421 WARN [DefaultRemoter] Method execution failed: java.lang.NoClassDefFoundError: com/opensymphony/webwork/dispatcher/DispatcherUtils at org.directwebremoting.webwork.DWRAction.<init>(DWRAction.java:53) at org.directwebremoting.webwork.DWRAction.initialize(DWRAction.java:226) at org.directwebremoting.webwork.DWRAction.execute(DWRAction.java:72) 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:585) at org.directwebremoting.impl.ExecuteAjaxFilter.doFilter(ExecuteAjaxFilter.java:34) at org.directwebremoting.impl.DefaultRemoter$1.doFilter(DefaultRemoter.java:428) at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:431) at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:283) at org.directwebremoting.servlet.PlainCallHandler.handle(PlainCallHandler.java:52) at org.directwebremoting.servlet.UrlProcessor.handle(UrlProcessor.java:101) at org.directwebremoting.servlet.DwrServlet.doPost(DwrServlet.java:146) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:413) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:595) 16:06:46,421 WARN [BaseCallMarshaller] --Erroring: batchId[1] message[java.lang.NoClassDefFoundError: com/opensymphony/webwork/dispatcher/DispatcherUtils] |
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Re: DWR and Struts2
by Rafael Rech
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Simplifying the description...
DWRAction uses some classes from WebWorks. Problem is theses classes are not in Struts 2. I think this integration is not as simple as just using the step of integration to WW. Any comments? Rafael. |
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Re: DWR and Struts2
by Joe Walker-3
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That's certainly correct. You could probably check out the source to the integration from CVS and change the import statements, to create a S2 integration. Not sure how easy this would be. Joe.
On 11/1/07, Rafael Rech <rafael.rech@...> wrote:
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