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function submintForm(){
if (typeof window['DWRUtil'] == 'undefined')
{ window.DWRUtil = dwr.util;
}
var formMap = DWRUtil.getValues("fm1");
Action.getMsg(formMap,{
callback:function(){alert("ok")},
exceptionHandler:function(message){alert(message)}
});
}
function callback() {
alert(msg + "mas****");
}
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" "http://www.getahead.ltd.uk/dwr/dwr20.dtd">
<dwr>
<allow>
<convert converter="exception" match="java.lang.Exception">
</convert>
<create javascript="Action" creator="new" scope="application">
<param name="class" value="dwr.actionForm.Action" />
<include method="getMsg" />
</create>
</allow>
</dwr>
<servlet>
<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>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dwr-invoker</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
catch (Exception exception) {
throw exception;
那这个信息就需要在dwr的配置文件进行配置了
你可以根据异常进行配置,你到网上找找看
参考:http://duqiangcise.javaeye.com/blog/287097