单点登录-同域名

小灰灰 2022-06-13 05:54 146阅读 0赞

该篇文章基于cookie实现，局限性很大，仅供学习，实际项目不要这么用。

1 首先新建项目一，项目结构如下图

![Center][]

2 接着将该项目端口设为8081；

3 接着编写一个项目1主页

4 接着编写主页控制器，代码如下

package com.chenyulin.controller; import com.chenyulin.util.SSOCheck; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.servlet.ModelAndView; import javax.servlet.http.HttpServletRequest; /** * Created by Administrator on 2017/6/29. */ @Controller public class Demo1Controller { private String gotoUrl; @GetMapping("/demo1") public ModelAndView main(HttpServletRequest request){ if (SSOCheck.checkCookie(request)) { ModelAndView m1 = new ModelAndView("Demo1"); return m1; } //failed to login add "gotoUrl" gotoUrl = "/demo1"; ModelAndView m2 = new ModelAndView("redirect:http://127.0.0.1:8080/intoLogin"); m2.addObject("gotoUrl", gotoUrl); return m2; } }

工具类代码如下

package com.chenyulin.util; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; /** * Created by Administrator on 2017/6/29. */ public class SSOCheck { public static boolean checkCookie(HttpServletRequest request) { Cookie[] cookies = request.getCookies(); if (cookies != null) { for (Cookie cookie : cookies) { if (cookie.getName().equals("ssocookie")&&cookie.getValue().equals("sso")) { return true; } } } return false; } }

5 然后是认证中心

![Center 1][]

控制器代码

package com.chenyulin.controller; import com.chenyulin.util.SSOCheck; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.ModelAndViewDefiningException; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletResponse; /** * Created by Administrator on 2017/6/29. */ @Controller public class LoginController { @GetMapping("/intoLogin") private ModelAndView intoLogin(@RequestParam String gotoUrl) { ModelAndView m=new ModelAndView("login"); m.addObject("gotoUrl", gotoUrl); return m; } @PostMapping("login") private String doLogin(@RequestParam String username, @RequestParam String password, @RequestParam String gotoUrl, HttpServletResponse response) { boolean ok = SSOCheck.checkLogin(username, password); if (ok) { Cookie cookie = new Cookie("ssocookie", "sso"); cookie.setPath("/"); response.addCookie(cookie); return "redirect:http://127.0.0.1:8081"+gotoUrl; } return null; } }

工具类代码

package com.chenyulin.util; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; /** * Created by Administrator on 2017/6/29. */ public class SSOCheck { private static final String USERNAME = "user"; private static final String PASSWORD = "123"; public static boolean checkLogin(String username, String password) { if (username != null && password != null) { if (username.equals(USERNAME) && password.equals(PASSWORD)) { return true; } } return false; } }

6 项目2，将项目2的端口改为8082，其它如同项目一，简单，略去  
同时启动两项目和认证中心，输入：127.0.0.1:8081/demo1启动进入项目1登录页；127.0.0.1:8082/demo2启动进入项目2登录页；任意登录一个即可实现来回穿梭。  
下面附上源码下载地址：http://download.csdn.net/detail/qwqw3333333/9884753  
本人初涉，如有不足请指正，万分感谢qq：569265915

[Center]: /images/20220613/80c165f225174c4989d1e1d9e7280643.png
[Center 1]: /images/20220613/ad4bc81d477448a1bc492a2558401ba3.png