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Struts2自定义登录验证拦截器

2016-06-11 00:00 716 查看

Controller.UserAction.java

package Controller;

import java.util.Map;

import com.opensymphony.xwork2.ActionContext;

public class UserAction {
private String username;
private String pass;
//|POST 外部注入 UserLog方法！
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPass() {
return pass;
}
public void setPass(String pass) {
this.pass = pass;
}
//|登录页
public String UserLogin()
{

return "success";
}
//|登录结果页
public String UserLog()
{

System.out.println(this.pass);
System.out.println(this.username);
if(this.username.equals("admin")&&this.pass.equals("admin"))
{
ActionContext act=ActionContext.getContext();
Map<String,Object> sessionMap=(Map<String,Object>)act.getSession();
sessionMap.put("username", "admin");
return "success";
}

return "failure";
}
//|用户中心页面
public String UserCenter()
{
return "success";
}
//|用户注销
public String UserLogOut()
{
ActionContext act=ActionContext.getContext();
Map<String,Object> sessionMap=(Map<String,Object>)act.getSession();
//|清空session（注销）
sessionMap.clear();
return "success";
}

}

Controller.UserInterceptor.java

package Controller;
/*******
* 自定义拦截器  拦截 没有登录的用户  Author:邱于涵
* ******/
import java.util.Map;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.MethodFilterInterceptor;

/*AbstractClass Use extends ,Interface Use implements
*AbstractInterceptor继承于MethodFilterInterceptor
*使用MethodFilterInterceptor才能设置<param name="excludeMethods" >method1,...</param>
*实现doIntercept方法
*/
public class UserInterceptor extends MethodFilterInterceptor{

@Override
protected String doIntercept(ActionInvocation invocation) throws Exception {
// TODO Auto-generated method stub
ActionContext act=ActionContext.getContext();
Map<String,Object> sessionMap=(Map<String,Object>)act.getSession();
System.out.println("test拦截器 正在过滤...");
System.out.println(sessionMap.get("username"));
if(sessionMap.get("username")!=null)
//|session有值 就 执行下一步
invocation.invoke();
//|否则就返回 failure作为 result 根据struts.xml返回<result name="failure">/User/UserLogin.jsp</result>
return "failure";
}

}

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>
<package name="User"  extends="struts-default" namespace="/User">
<!-- 注册拦截器 -->
<interceptors>
<interceptor name="test" class="Controller.UserInterceptor">
</interceptor>
</interceptors>
<!-- -通配符映射 -->
<action name="User*" class="Controller.UserAction" method="User{1}">
<!-- 引用拦截器 -->

<interceptor-ref name="test">
<!-- 不拦截的方法 UserLogi用于登录 -->
<param name="excludeMethods">UserLogin,UserLog</param>
</interceptor-ref>
<!-- 没有默认的拦截器栈 Action无法接收POST GET -->
<interceptor-ref name="defaultStack"/>
<result name="success">/User/User{1}.jsp</result>
<result name="failure">/User/UserLogin.jsp</result>

</action>
</package>

</struts>

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContex
3ff0
tPath();
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 'index.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>
This is WebApp Directory:<br/>
<%=request.getContextPath() %><br/>
<a href="User/UserLogin.action">登录用户</a>
<br/>
Powered By 涵涵
</body>
</html>

User/UserLogin.jsp用户登录表单页面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
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>用户登录</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>
这是通配符映射<a href="<%=request.getContextPath() %>">返回到首页</a><br/>
<form action="<%=request.getContextPath() %>/User/UserLog.action" method="POST" >
<input type="text" name="username"/>
<input type="password" name="pass"/>
<input type="submit" value="登录"/>
</form>
</body>
</html>

User/UserLog.jsp用户登录结果页面

<%@ 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>用户登录结果页</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>
<s:debug></s:debug>
登录成功！<br/>
<s:property value="#session.username"/><br/>
<a href="<%=request.getContextPath() %>/User/UserCenter.action">进入用户中心</a>
</body>
</html>

User/UserCenter.jsp用户中心页面

<%@ 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>用户中心</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>
这是用户中心<br/>
用户名:<s:property value="#session.username"/><br/>
<a href="<%=request.getContextPath()%>/User/UserLogOut.action">注销</a>
</body>
</html>

User/UserLogOut.jsp用户注销页面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
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>注销成功</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>
注销成功欢迎下次回来<br/>
<a href="<%=request.getContextPath() %>">返回首页</a>
</body>
</html>

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"> <display-name></display-name>
<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>

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