用STRUTS2写了一个login小程序，运行时出现如下错误，请高手指点！！！看看可能是哪出错了。
HTTP Status 500 -type Exception reportmessagedescription The server encountered an internal error () that prevented it from fulfilling this request.
HTTP Status 500 -type Exception reportmessagedescription The server encountered an internal error () that prevented it from fulfilling this request.
你的action或者是配置有问题
<?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="LoginAction">
<result name="success">/success.jsp</result>
<result name="error">/error.jsp</result>
</action>
</package>
</struts>
web.xml配置信息：
<?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>index.jsp</welcome-file>
</welcome-file-list>
<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>
</web-app>
登陆页面信息login.jsp:
<%@ page contentType="text/heml;charset=GBK" %>
<html>
<head>
<title>登陆页面</title>
</head>
<body>
<form action="login.action" method="post">
<table>
<tr>
<td>请输入用户名：</td>
<td><input type="text" name="user.username"></td>
</tr>
<tr>
<td>请输入密码：</td>
<td><input type="password" name="user.password"></td>
</tr>
<tr>
<td><input type="reset" value="重填"></td>
<td><input type="submit" value="提交"></td>
</tr>
</table>
</form>
</body>
</html>
error页面信息error.jsp：
<%@ page contentType="text/html; charset=GBK"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head><title>登录失败！</title></head>
<body>
用户密码错误，请重新<a href="login.jsp">登陆</a>
</body>success页面信息success.jsp：
<%@ page contentType="text/html;charset=GBK"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>欢迎页面</title>
</head>
<body>
<h3><s:property value="user.username" /></h3>
</body>
</html>
java类信息：
LoginAction.java:
import com.opensymphony.xwork2.Action;
public class LoginAction implements Action {
private User user; public String execute() throws Exception {
if("wangshengpeng".equals(user.getUsername())
&& "wsp".equals(user.getPassword()))
return SUCCESS;
else
return ERROR;
}
public User getUsername(){
return user;
}
public void setUser(User user){
this.user=user;
}
}</html>
User.java:
import java.io.Serializable;
public class User implements Serializable {
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;
}
}
你的是getusrename方法
return user;
}
public void setUser(User user){
this.user=user;
}
}
看红色部分! get/set后面保持一致
return user;
}应该 为 ：
[code=Java]
public User getUser(){
return user;
}
2. struts.xml 中 class="LoginAction" 要注意将 包名也一并的添上
class="com.opensymphony.xwork2.Action.LoginAction"