Struts2自定義登陸驗證攔截器
Controller.UserAction.javacss
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;
}
//|登陸頁
public String UserLogin()
{
return "success";
}
//|登陸結果頁
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";
}
//|用戶中心頁面
public String UserCenter()
{
return "success";
}
//|用戶註銷
public String UserLogOut()
{
ActionContext act=ActionContext.getContext();
Map<String,Object> sessionMap=(Map<String,Object>)act.getSession();
//|清空session（註銷）
sessionMap.clear();
return "success";
}
}
Controller.UserInterceptor.java
package Controller;
/*******
* 自定義攔截器 攔截 沒有登陸的用戶 Author:邱於涵
* ******/
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繼承於MethodFilterInterceptor
*使用MethodFilterInterceptor才能設置<param name="excludeMethods" >method1,...</param>
*實現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攔截器 正在過濾...");
System.out.println(sessionMap.get("username"));
if(sessionMap.get("username")!=null)
//|session有值 就 執行下一步
invocation.invoke();
//|不然就返回 failure做爲 result 根據struts.xml返回<result name="failure">/User/UserLogin.jsp</result>
return "failure";
}
}
struts.xml
html
<?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">
<!-- 註冊攔截器 -->
<interceptors>
<interceptor name="test" class="Controller.UserInterceptor">
</interceptor>
</interceptors>
<!-- -通配符映射 -->
<action name="User*" class="Controller.UserAction" method="User{1}">
<!-- 引用攔截器 -->
<interceptor-ref name="test">
<!-- 不攔截的方法 UserLogi用於登陸 -->
<param name="excludeMethods">UserLogin,UserLog</param>
</interceptor-ref>
<!-- 沒有默認的攔截器棧 Action沒法接收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.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 '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">登陸用戶</a>
<br/>
Powered By 涵涵
</body>
</html>User/UserLogin.jsp用戶登陸表單頁面
<%@ 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>用戶登陸</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>
這是通配符映射<a href="<%=request.getContextPath() %>">返回到首頁</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="登陸"/>
</form>
</body>
</html>
User/UserLog.jsp用戶登陸結果頁面java
<%@ 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>用戶登陸結果頁</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>
登陸成功！<br/>
<s:property value="#session.username"/><br/>
<a href="<%=request.getContextPath() %>/User/UserCenter.action">進入用戶中心</a>
</body>
</html>
User/UserCenter.jsp用戶中心頁面web
<%@ 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>用戶中心</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>
這是用戶中心<br/>
用戶名:<s:property value="#session.username"/><br/>
<a href="<%=request.getContextPath()%>/User/UserLogOut.action">註銷</a>
</body>
</html>
User/UserLogOut.jsp用戶註銷頁面apache
<%@ 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>註銷成功</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>
註銷成功歡迎下次回來<br/>
<a href="<%=request.getContextPath() %>">返回首頁</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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