动态Action的应用 报错Could not find action or result,该如何处理

动态Action的应用 报错Could not find action or result
本帖最后由 sky2434550330 于 2013-11-06 13:57:06 编辑 十一月 06, 2013 1:36:05 下午 org.apache.struts2.dispatcher.Dispatcher warn
WARNING: Could not find action or result
There is no Action mapped for namespace [/] and action name [userAction!add] associated with context path [/struts2]. - [unknown location]
at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:185)
at org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)
at org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)
at com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:553)
at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2430)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2419)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

十一月 06, 2013 1:36:05 下午 org.apache.struts2.dispatcher.Dispatcher error
SEVERE: Exception occurred during processing request: There is no Action mapped for namespace [/] and action name [userAction!add] associated with context path [/struts2].
There is no Action mapped for namespace [/] and action name [userAction!add] associated with context path [/struts2]. - [unknown location]
at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:185)
at org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)
at org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)
at com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:553)
at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2430)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2419)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

我写了Action的应用程序，点击index.jsp的连接，就报错404了，求解决呀！
我在自学，望大家多指教！

下面是程序所有代码：

index.jsp代码
<body>
<a href="userAction!add">添加用户</a><br>

<a href="userAction!update">更新用户</a>
</body>

struts.xml代码
<struts>

    <package name="default" namespace="/" extends="struts-default">
        <action name="userAction" class="com.struts2.UserAction">
<result name="add">/user_add.jsp</result>
<result name="update">/user_update.jsp</result>
</action>
    </package>

    <!-- Add packages here -->

</struts>

web.xml代码
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

    <display-name>Struts Blank</display-name>

    <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>

    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>

</web-app>


UserAction.java代码
package com.struts2;

import com.opensymphony.xwork2.ActionSupport;

public class UserAction extends ActionSupport {

private static final long serialVersionUID=1L;//主要用于版本控制

private String info;

public String add() throws Exception{
info="添加用户信息";
return "add";
}

public String update() throws Exception{
info="更新用户信息";
return "update";
}

public String getInfo() {
return info;
}

public void setInfo(String info) {
this.info = info;
}


}


user_add.jsp代码
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>user_add</title>
</head>
<body>
<font color="red">
<s:property value="info" />
</font>
</body>
</html>

user_update.jsp代码
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<%@ page language="java" contentType="text/html; charset="
    pageEncoding=""%>
<meta http-equiv="Content-Type" content="text/html; charset=">
<title>user_updae</title>
</head>
<body>
<font>
<s:property value="info" />
</font>
</body>
</html>


action struts2 找不到action?or?result
[解决办法]
add update      是method  不是result
[解决办法]

 <action name="userAction_*" class="com.struts2.UserAction" method="{1}">
<result name="add">/user_add.jsp</result>
<result name="update">/user_update.jsp</result>
</action>

[解决办法]
粗略的看了一下。
请把动态方法调用开启
<constant name="struts.enable.DynamicMethodInvocation" value="true" />
<a href="userAction!add.action">添加用户</a><br>
<a href="userAction!update.action">更新用户</a>
试试看，行不行。
[解决办法]
   <package name="default" namespace="/" extends="struts-default">
        <action name="userAction" class="com.struts2.UserAction" method="">    ---默认方法是String execute()
<result name="add

">/user_add.jsp</result> 
<result name="update">/user_update.jsp</result> ----是execute返回结果
</action>

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