1.同域SSO案例

小咪咪 2022-06-18 11:20 86阅读 0赞

**1.搭建springmvc框架**

**2.编写LoginController,login.jsp**  
LoginController：  
1.获取用户名密码并验证，验证成功，将用户名写入Cookie(“username”,”xiaoming”)，path为/，获取login.jsp传过来的回调地址，callbackurl，并重定向到callbackurl  
2.验证失败，重新跳转到login.jsp

**3.编写MianController1，main1.jsp主页**  
MianController：  
1.获取Cookie信息，如果Cookie中包含usernema,并且等于xiaoming，用户已登录，直接跳转main.jsp

**4.编写MianController2，main2.jsp主页**  
MianController：  
1.获取Cookie信息，如果Cookie中包含usernema,并且等于xiaoming，用户已登录，直接跳转main.jsp  
2.如果Cookie中没有此信息，表示用户需要登陆，跳转到login.jsp，并传参callbackurl为此控制器的url

**5.案例**  
![这里写图片描述][SouthEast]  
如上目录结构  
1.User:

package com.tiglle.bean;
    
    public class User { 
    
        private String username;
    
        private String password;
    
        private String callbackurl;
    
        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 getCallbackurl() {
            return callbackurl;
        }
    
        public void setCallbackurl(String callbackurl) {
            this.callbackurl = callbackurl;
        }
    
        public User(String username, String password, String callbackurl) {
            super();
            this.username = username;
            this.password = password;
            this.callbackurl = callbackurl;
        }
    
        public User(String username, String password) {
            super();
            this.username = username;
            this.password = password;
        }
    
        public User() {
            super();
        }
    
    
    }

2.LoginController:

package com.tiglle.controller;
    
    import javax.servlet.http.Cookie;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import com.tiglle.bean.User;
    import com.tiglle.service.UserService;
    @Controller
    public class LoginController {
    
        @Autowired
        private UserService userService;
    
        @RequestMapping("/login")
        public String login(HttpServletRequest request,HttpServletResponse response,User user){
            if(userService.checkLogin(user)){
                //写入cookie
                Cookie cookie = new Cookie("username",user.getUsername());
                cookie.setMaxAge(300);
                cookie.setPath("/");
                response.addCookie(cookie);
                //重定向到callbackurl
                return "redirect:"+user.getCallbackurl();
            }
            return "login";
        }
    
    }

3.UserService:

package com.tiglle.service;
    
    import javax.servlet.http.Cookie;
    
    import org.springframework.stereotype.Service;
    
    import com.tiglle.bean.User;
    
    @Service
    public class UserService { 
    
        private User user = new User("xiaoming","123456");
    
        public boolean checkLogin(User paramUser){
            if(paramUser.getUsername().equals(user.getUsername())&&paramUser.getPassword().equals(user.getPassword())){
                return true;
            }
            return false;
        }
    
        public boolean checkCookie(Cookie[] cookies){
            if(cookies!=null){
                for(Cookie cookie:cookies){
                    if(cookie.getName().equals("username")&&cookie.getValue().equals("xiaoming")){
                        return true;
                    }
                }
            }
            return false;
        }
    
    }

5.MainController1:

package com.tiglle.server1;
    
    import java.util.Map;
    
    import javax.servlet.http.Cookie;
    import javax.servlet.http.HttpServletRequest;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import com.tiglle.service.UserService;
    
    @Controller
    public class MainController1 {
    
        @Autowired
        private UserService userService;
    
        @RequestMapping("/main1")
        public String main1(HttpServletRequest request,Map<String,String> map){
            Cookie[] cookies = request.getCookies();
            if(userService.checkCookie(cookies)){
                return "main1";
            }
            map.put("callbackurl", "/main1");
            return "login";
        }
    
    }

6.MainController2:

package com.tiglle.server2;
    
    import java.util.Map;
    
    import javax.servlet.http.Cookie;
    import javax.servlet.http.HttpServletRequest;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    import com.tiglle.service.UserService;
    @Controller
    public class MainController2 {
    
        @Autowired
        private UserService userService;
    
        @RequestMapping("/main2")
        public String main2(HttpServletRequest request,Map<String,String> map){
            Cookie[] cookies = request.getCookies();
            if(userService.checkCookie(cookies)){
                return "main2";
            }
            map.put("callbackurl", "/main2");
            return "login";
        }
    
    }

7.login.jsp:

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
    <title>登录页面</title>
    </head>
    <body>
        <center>
            <form action="login">
                用户名:<input type="text" name="username"/><br/>
                密　码:<input type="text" name="password"/><br/>
                <input type="hidden" name="callbackurl" value="${callbackurl }"/><br/>
                <input type="submit" value="登录"/><br/>
            </form>
        </center>
    </body>
    </html>

8.main1.jsp:

9.main2.jsp:

1.  index.jsp:

此时，打开访问main1会出现登录页面，当登录成功，访问main2就直接进入主页面，无需登录，反之一样。

[SouthEast]: /images/20220618/019323c0b2af4ef38572fbde15f4e90a.png