上海网站建设的意义,个人做网站的时代已经过去,wordpress添加贴吧表情,自己做网站分销单点登录#xff08;Single Sign On, SSO#xff09;是指在同一帐号平台下的多个应用系统中#xff0c;用户只需登录一次#xff0c;即可访问所有相互信任的应用系统。Cookie 的作用域由 domain 属性和 path 属性共同决定。在 Tomcat 中#xff0c;domain 属性默认为当前域… 单点登录Single Sign On, SSO是指在同一帐号平台下的多个应用系统中用户只需登录一次即可访问所有相互信任的应用系统。Cookie 的作用域由 domain 属性和 path 属性共同决定。在 Tomcat 中domain 属性默认为当前域的域名/IP地址。path 属性的有效值是以“/”开头的路径在 Tomcat 中path 属性默认为当前 Web 应用的上下文路径。如果将 Cookie 的 domain 属性设置为当前域的父域那么就认为它是父域 Cookie。Cookie 有一个特点即父域中的 Cookie 被子域所共享换言之子域会自动继承父域中的Cookie。利用 Cookie 的这个特点不难想到将 Session ID或 Token保存到父域中不就行了。没错我们只需要将 Cookie 的 domain 属性设置为父域的域名主域名同时将 Cookie 的 path 属性设置为根路径这样所有的子域应用就都可以访问到这个 Cookie 了。不过这要求应用系统的域名需建立在一个共同的主域名之下如 http://tieba.baidu.com 和 http://map.baidu.com它们都建立在 http://baidu.com 这个主域名之下那么它们就可以通过这种方式来实现单点登录。 配置host文件 项目结构 引入依赖
父项目引入依赖子项目无依赖引入 dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-web/artifactId/dependencydependencygroupIdorg.projectlombok/groupIdartifactIdlombok/artifactIdversion1.18.24/version/dependencydependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-thymeleaf/artifactIdversion2.6.7/version/dependencydependencygroupIdjavax.servlet/groupIdartifactIdjavax.servlet-api/artifactIdversion4.0.1/version/dependency
login系统
前端部分
login.html页面负责显示登录页面并提交登录
!DOCTYPE html
html langen xmlns:thhttp://www.w3.org/1999/xhtml
headmeta charsetUTF-8titleLogin Module/title
/head
bodyh1用户登录 /h1p stylecolor: red; th:text${session.msg}/pform action/login methodPOST姓名: input nameusername valuebr/br密码: input namepassword valuebr/brbutton typesubmit stylewidth:60px;height:30px login /button/form/body
/html
后端部分
跳转登录页面
import com.sso.login.pojo.User;
import com.sso.login.utils.LogCacheUtil;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CookieValue;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.thymeleaf.util.StringUtils;import javax.servlet.http.Cookie;
import javax.servlet.http.HttpSession;Controller
RequestMapping(/view)
public class ViewController {/*** 跳转到登录页面* return*/GetMapping(/login)public String toLogin(RequestParam(required false, defaultValue ) String target,HttpSession session,CookieValue(required false, value TOKEN) Cookie cookie){if(StringUtils.isEmpty(target)){target login.codeshop.com:9010;}if(cookie ! null){// 从父域拿到tokenString value cookie.getValue();User user LogCacheUtil.loginUser.get(value);if(user ! null){return redirect: target;}}session.setAttribute(target,target);return login;}}负责登录校验以及解析token
import com.sso.login.pojo.User;
import com.sso.login.utils.LogCacheUtil;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CookieValue;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.thymeleaf.util.StringUtils;import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.HashSet;
import java.util.Optional;
import java.util.Set;
import java.util.UUID;Controller
RequestMapping(/login)
public class LoginController {private static SetUser dbUser;// 模拟数据库static {dbUser new HashSet();dbUser.add(new User(1, zxb, 1234567));dbUser.add(new User(2, admin, 123456));}PostMappingpublic String doLogin(User user, HttpSession session, HttpServletResponse response) {String target (String) session.getAttribute(target);// 验证登录OptionalUser first dbUser.stream().filter(dbUser - dbUser.getUsername().equals(user.getUsername()) dbUser.getPassword().equals(user.getPassword())).findFirst();if (first.isPresent()) {String token UUID.randomUUID().toString();// 保存token到父域 CookieCookie cookie new Cookie(TOKEN, token);cookie.setPath(/);cookie.setDomain(codeshop.com);response.addCookie(cookie);// 登录成功保存到LogCacheUtil工具类中这个部分可以用redis去实现LogCacheUtil.loginUser.put(token, first.get());} else {session.setAttribute(msg, 用户名或密码错误!);// 错误跳转到登录页面return login;}// 重定向到目标地址return redirect: target;}GetMapping(info)ResponseBodypublic ResponseEntityUser getUserInfo(String token) {if (!StringUtils.isEmpty(token)) {// 验证token并从token获取用户信息并返回User user LogCacheUtil.loginUser.get(token);return ResponseEntity.ok(user);} else {return new ResponseEntity(null, HttpStatus.BAD_REQUEST);}}GetMapping(/logout)public String loginOut(CookieValue(value TOKEN) Cookie cookie, HttpServletResponse response, String target) {cookie.setMaxAge(0);LogCacheUtil.loginUser.remove(cookie.getValue());response.addCookie(cookie);return redirect: target;}
}model
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;Data //添加getter/setter
NoArgsConstructor //添加无参构造器
AllArgsConstructor //添加全参构造器
Accessors(chain true) //添加链式调用
public class User {private Integer id;private String username;private String password;
}
保存User工具类
import com.sso.login.pojo.User;import java.util.HashMap;
import java.util.Map;public class LogCacheUtil {public static MapString, User loginUser new HashMap();}
Main系统
前端部分
index.html页面
!DOCTYPE html
html langen xmlns:thhttp://www.w3.org/1999/xhtml
headmeta charsetUTF-8titleIndex Module/title
/head
bodyh1欢迎登录!/h1spana th:if${session.loginUser null} hrefhttp://login.codeshop.com:9000/view/login?targethttp://login.codeshop.com:9010/view/indexlogin/aa th:unless${session.loginUser null} hrefhttp://login.codeshop.com:9000/login/logout?targethttp://www.codeshop.com:9010/view/indexlogout/a/spanp th:unless${session.loginUser null}span stylecolor:deepskyblue th:text${session.loginUser.username}/span 已登录!br/brbr/brid: span stylecolor:deepskyblue th:text${session.loginUser.id}/spanbr/brusername: span stylecolor:deepskyblue th:text${session.loginUser.username}/spanbr/br/p
/body
/html
后端部分
Viewcontroller
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CookieValue;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.client.RestTemplate;
import org.thymeleaf.util.StringUtils;import javax.servlet.http.Cookie;
import javax.servlet.http.HttpSession;
import java.util.Map;Controller
RequestMapping(/view)
public class ViewController {Autowiredprivate RestTemplate restTemplate;private final String USER_INFO_ADDRESS http://login.codeshop.com:9000/login/info?token;GetMapping(/index)public String toIndex(CookieValue(required false, value TOKEN) Cookie cookie,HttpSession session) {if (cookie ! null) {String token cookie.getValue();if (!StringUtils.isEmpty(token)) {Map result restTemplate.getForObject(USER_INFO_ADDRESS token, Map.class);session.setAttribute(loginUser, result);}}return index;}
}配置restTemplate的HTTP客户端工具
SpringBootApplication
public class MainApp {public static void main(String[] args) {SpringApplication.run(MainApp.class,args);}Beanpublic RestTemplate restTemplate(){return new RestTemplate();}
}
cart系统
前端部分
index.html页面
!DOCTYPE html
html langen xmlns:thhttp://www.w3.org/1999/xhtml
headmeta charsetUTF-8titleBlog Module/title
/head
bodyh1登录页面 !/h1spana th:if${session.loginUser null} hrefhttp://login.codeshop.com:9000/view/login?targethttp://cart.codeshop.com:9012/view/indexlogin/aa th:unless${session.loginUser null} hrefhttp://login.codeshop.com:9000/login/logout?targethttp://cart.codeshop.com:9012/view/indexlogout/a/spanp th:unless${session.loginUser null}span stylecolor:deeppink th:text${session.loginUser.username}/span 已登录!br/brbr/brid: span stylecolor:deeppink th:text${session.loginUser.id}/spanbr/brusername: span stylecolor:deeppink th:text${session.loginUser.username}/spanbr/br/p
/body
/html
后端部分
view的controller
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CookieValue;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.client.RestTemplate;
import org.thymeleaf.util.StringUtils;import javax.servlet.http.Cookie;
import javax.servlet.http.HttpSession;
import java.util.Map;Controller
RequestMapping(/view)
public class ViewController {Autowiredprivate RestTemplate restTemplate;private final String USER_INFO_ADDRESS http://login.codeshop.com:9000/login/info?token;GetMapping(/index)public String toIndex(CookieValue(required false, value TOKEN) Cookie cookie,HttpSession session){if(cookie ! null){// 从cookie拿到的token去请求获取用户信息需要去实现验证String token cookie.getValue();if(!StringUtils.isEmpty(token)){Map result restTemplate.getForObject(USER_INFO_ADDRESStoken,Map.class);session.setAttribute(loginUser,result);}}return index;}
}配置restTemplate的HTTP客户端工具
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;SpringBootApplication
public class CartApp {public static void main(String[] args) {SpringApplication.run(CartApp.class,args);}Beanpublic RestTemplate restTemplate(){return new RestTemplate();}
}
测试
启动 访问 mainApp 登录 登录成功 输入cart.codeshop.com:9012/view/index直接访问cart系统成功 输入www.codeshop.com:9010/view/index直接访问main系统成功
