DWR+Strut整合
出现以下异常：
2010-6-22 19:25:55 org.directwebremoting.util.CommonsLoggingOutput warn
警告: Method execution failed:
java.lang.InstantiationException: Illegal Access to default constructor
at org.directwebremoting.struts.StrutsCreator.getInstance(StrutsCreator.java:138)
at org.directwebremoting.impl.DefaultRemoter.execute(DefaultRemoter.java:348)
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.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)
2010-6-22 19:25:56 org.directwebremoting.util.CommonsLoggingOutput warn
警告: --Erroring: batchId[0] message[java.lang.InstantiationException: Illegal Access to default constructor]
解决方案：
将 Action 中的 scope 设置成 session
<action name="dwr_strutsForm" path="/dwr_struts"
scope="session" type="com.yan.ajax.struts.action.Dwr_strutsAction" />
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