登录页面跳转不成功，请大家帮忙改下~~谢谢

web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
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_2_5.xsd">
  <welcome-file-list>
    <welcome-file>login.jsp</welcome-file>
  </welcome-file-list>
  <filter>
     <filter-name>struts2</filter-name>
     <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
  </filter>
  <filter-mapping>
      <filter-name>struts2</filter-name>
      <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>
struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
     "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
     "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
   <package name="default" extends="struts-default">
        <action name="login" class="org.action.LoginAction">
             <result name="success">/welcome.jsp</result>
        </action>
   </package>
</struts>
还有，每次修改过代码之后必须重新启动myeclipse才能运行改过之后的代码，这是为什么呢？
请大家帮帮忙啦~~~~

解决方案 »

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1，登陆问题，请将登陆action代码贴出来2，重启问题，在你的struts.xml中添加以下内容： <constant name="struts.devMode" value="true" />
LZ请把JSP页面也贴出，只有两个文件看不问题在哪，
login.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>登陆页面</title>
  </head>

  <body>
    <form action="login.action" method="post">
    <table align="center" border=1 width="300">
    <tr><td colspan="2" align="center" width="250">用户登录页面</td></tr>
    <tr><td width="50">姓名：</td><td><input type="text" name="username" size=22/></td></tr>
    <tr><td width="50">密码：</td><td><input type="password" name="password" size=22/></td></tr>
    <tr><td align="center" colspan=2><input type="submit" value="登录"/><input type="reset" value="重置"/></td></tr>
    </table>
    </form>
    </body>
    </html>

LoginAction.java
package org.action;public class LoginAction {
     private String username;
     private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
    public String execute(){
     return "success";
    }
}
welcome.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>欢迎界面</title>
  </head>

  <body>
                    欢迎你！${username}
  </body>
</html>
tomcat出错信息2010-6-14 21:24:10 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre1.7.0\bin;D:\apache-tomcat-6.0.20\bin
2010-6-14 21:24:10 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2010-6-14 21:24:10 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 1808 ms
2010-6-14 21:24:11 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2010-6-14 21:24:11 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.20
2010-6-14 21:24:12 org.apache.catalina.core.StandardContext resourcesStart
严重: Error starting static Resources
java.lang.IllegalArgumentException: Document base D:\apache-tomcat-6.0.20\webapps\zhengyan does not exist or is not a readable directory
at org.apache.naming.resources.FileDirContext.setDocBase(FileDirContext.java:142)
at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4048)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4217)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:526)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:630)
at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:556)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:491)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1206)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:314)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:583)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
2010-6-14 21:24:12 org.apache.catalina.core.StandardContext start
严重: Error in resourceStart()
2010-6-14 21:24:12 org.apache.catalina.core.StandardContext start
严重: Error getConfigured
2010-6-14 21:24:12 org.apache.catalina.core.StandardContext start
严重: Context [/zhengyan] startup failed due to previous errors
2010-6-14 21:24:12 org.apache.catalina.core.StandardContext stop
信息: Container org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/zhengyan] has not been started
2010-6-14 21:24:12 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2010-6-14 21:24:12 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2010-6-14 21:24:14 com.opensymphony.xwork2.config.providers.XmlConfigurationProvider register
信息: Parsing configuration file [struts-default.xml]
2010-6-14 21:24:14 com.opensymphony.xwork2.config.providers.XmlConfigurationProvider register
信息: Parsing configuration file [struts-plugin.xml]
2010-6-14 21:24:14 com.opensymphony.xwork2.config.providers.XmlConfigurationProvider register
信息: Parsing configuration file [struts.xml]
2010-6-14 21:24:14 org.apache.struts2.config.Settings getLocale
警告: Settings: Could not parse struts.locale setting, substituting default VM locale
2010-6-14 21:24:14 com.opensymphony.xwork2.config.impl.DefaultConfiguration$ContainerProperties setProperty
信息: Overriding property struts.i18n.reload - old value: false new value: true
2010-6-14 21:24:14 com.opensymphony.xwork2.config.impl.DefaultConfiguration$ContainerProperties setProperty
信息: Overriding property struts.configuration.xml.reload - old value: false new value: true
2010-6-14 21:24:15 com.opensymphony.xwork2.util.ObjectTypeDeterminerFactory <clinit>
信息: Setting DefaultObjectTypeDeterminer as default ...
2010-6-14 21:24:15 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2010-6-14 21:24:15 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2010-6-14 21:24:15 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/46  config=null
2010-6-14 21:24:15 org.apache.catalina.startup.Catalina start
信息: Server startup in 4417 ms
2010-6-14 21:25:03 com.opensymphony.xwork2.validator.ActionValidatorManagerFactory <clinit>
信息: Detected AnnotationActionValidatorManager, initializing it...
LZ 可以写点system.out.pringln测试下
比如看看进action了没有，如果没有，请求地址或者struts配置有问题如果修改web.xml 应该需要重新部署下