struts2 DMI用感叹号动态调用方法时提示there is no action mapped for

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转自：http://www.cnblogs.com/li-peng/p/3782395.html

在使用DMI(动态方法调用)的时候要注意struts.xml配置时要把

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<constant name="struts.enable.DynamicMethodInvocation" value="true"/>

不然会出现错误

完整示例代码

struts.xml

 <constant name="struts.devMode" value="true" /> <constant name="struts.enable.DynamicMethodInvocation" value="true"/> <package name="default" namespace="/path" extends="struts-default">                <action name="path" class="com.pengli.structs2.actionstudy.IndexAction3">            <result name ="a">                /MyPath.jsp            </result>        </action>    </package>     <package name="default2" namespace="/" extends="struts-default">                <action name="path2" class="com.pengli.structs2.actionstudy.IndexAction3">            <result name ="a">                /MyPath.jsp            </result>            <result name ="add">                /hello.jsp            </result>            <result name ="edit">                /index.jsp            </result>        </action>    </package>

IndexAction3

package com.pengli.structs2.actionstudy;import com.opensymphony.xwork2.ActionSupport;public class IndexAction3  extends ActionSupport{    @Override    public String execute() throws Exception {        // TODO Auto-generated method stub        return "a";    }        public String add()    {        return "add";    }        public String edit()    {        return "edit";    }}

web.xml

  <filter>    <filter-name>struts2</filter-name>    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>  </filter>  <filter-mapping>    <filter-name>struts2</filter-name>    <url-pattern>/*</url-pattern>  </filter-mapping>

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