dwr[org.directwebremoting.dwrp.BaseCallMarshaller]Erroring: batchId[3]

Question

在使用dwr的时候，一直都用的很好，今天很莫名其妙的出现了参数异常java.lang.IllegalArgumentException
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.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:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at com.xm.itv.filter.LoginFilter.doFilter(LoginFilter.java:59)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:413)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:619)
2009-11-10 21:40:09 [org.directwebremoting.dwrp.BaseCallMarshaller]-[WARN] --Erroring: batchId[3] message[java.lang.IllegalArgumentException]页面调用 demandService.getMovieDetail(id,
function (base){
alert('vv');
if(base != null){
if(base.picpath!=null && base.picpath!=''){
document.getElementById("picpath"+id).src=base.path; 
 }else{
    document.getElementById("picpath"+id).src="images/demand/3.png";
      }
        }
     });
    
后台代码public Map getMovieDetail(int content_Id){
return  resultMap;
}dwr.xml<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC
    "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN"
    "http://getahead.org/dwr/dwr20.dtd">
<dwr>
<allow>
<create javascript="demandService" creator="spring">
<param name="beanName" 
value="cateService"></param>
</create>
<create javascript="playBillService" creator="spring">
<param name="beanName" value="playBillService"></param>
</create>
<create javascript="liveService" creator="spring">
<param name="beanName" value="channelService"></param>
</create>
<convert match="com.xm.itv.entity.*" converter="bean"></convert>
</allow>
</dwr>web.xml <!-- dwr 的配置 -->
<servlet>
<servlet-name>dwr</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>config-dwr</param-name>
<param-value>
/WEB-INF/dwr/Dwr.xml
</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dwr</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>谢谢大家了。

Answer 1

配置web.xml    <init-param> //这个是DWR2.0必须的,不然会报java.lang.IllegalArgumentException
       <param-name> classes </param-value>
       <param-value> java.lang.Object </param-value>
</servlet>

Answer 2

谢谢楼上的但是并不是那个问题。我需要接收的是一个Int的类型的，而且dwr的默认转换Int String Map。
可是我传递的参数id是空的。
由于页面做更改传的参数无意被改动到了。
所以id值变成了null
才会造成参数错误。