No result defined for action action.LoginAction and result success 问题解决

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搭建好SSH2框架，写一个简单的登陆功能，提交表单的时候遇到这个问题：

配置文件如下：

web.xml:

<?xml version="1.0" encoding="UTF-8"?><web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">  <display-name></display-name>  <context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener>  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>  <filter>  <filter-name>struts2</filter-name>  <filter-class>  org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter  </filter-class>  <init-param><param-name>config</param-name><param-value>struts-default.xml,struts-plugin.xml,struts.xml</param-value></init-param>  </filter>  <filter-mapping>  <filter-name>struts2</filter-name>  <url-pattern>*.action</url-pattern>  </filter-mapping>    <filter-mapping>  <filter-name>struts2</filter-name>  <url-pattern>*.jsp</url-pattern>  </filter-mapping></web-app>

spring配置文件：applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?><web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">  <display-name></display-name>  <context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener>  <welcome-file-list>    <welcome-file>index.jsp</welcome-file>  </welcome-file-list>  <filter>  <filter-name>struts2</filter-name>  <filter-class>  org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter  </filter-class>  <init-param><param-name>config</param-name><param-value>struts-default.xml,struts-plugin.xml,struts.xml</param-value></init-param>  </filter>  <filter-mapping>  <filter-name>struts2</filter-name>  <url-pattern>*.action</url-pattern>  </filter-mapping>    <filter-mapping>  <filter-name>struts2</filter-name>  <url-pattern>*.jsp</url-pattern>  </filter-mapping></web-app>

struts2.1配置文件struts.xml:

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd"><struts><constant name="struts.objectFactory" value="spring" /><package name="default" extends="struts-default" ><action name="userLogin" class="LoginAction"><result name="success">/success.jsp</result><result name="input">/login.jsp</result></action></package></struts>

LoginAction.java:

public String execute() {// TODO Auto-generated method stubreturn SUCCESS;}

登陆页面 login.jsp:

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><%@taglib prefix="s" uri="/struts-tags"%><%String path = request.getContextPath();String basePath = request.getScheme() + "://"+ request.getServerName() + ":" + request.getServerPort()+ path + "/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><base href="<%=basePath%>"><title>My JSP 'login.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"><meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body>This is my JSP page.<br><s:form action="userLogin.action"><s:textfield name="username" label="用户名" /><s:password name="password" label="密码"></s:password><s:submit type="button" value="登陆" /></s:form></body></html>

成功跳转页面 success.jsp:

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><%@taglib prefix="s" uri="/struts-tags"%><%String path = request.getContextPath();String basePath = request.getScheme() + "://"+ request.getServerName() + ":" + request.getServerPort()+ path + "/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><base href="<%=basePath%>"><title>My JSP 'success.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"><meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body>This is my JSP page.<br> Welcome!<h5><s:property value="username" /></h5><br><h6><s:property value="password" /></h6></body></html>

这个是修改之后的正确代码，原来错误代码的struts.xml中的action的name是login，login.jsp中的action="login.action"，将这两个action改成“userLogin”之后就没有问题了，改成Login也是可以的。不知道是什么问题，希望了解的大神们指点一下。

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