这篇文章主要介绍了SpringBoot单点登录怎么实现的相关知识，内容详细易懂，操作简单快捷，具有一定借鉴价值，相信大家阅读完这篇SpringBoot单点登录怎么实现文章都会有所收获，下面我们一起来看看吧。
添加拦截器,设置UUID作为唯一标识，存入数据库中
通过当前登陆者的账户进行查询
如果当前登陆者session中存入的UUID与我们数据库中的UUID值相同则通过
否则返回false,表示已在其他设备或浏览器登录登录
首先我们新建一个Spring项目
添加以下几个依赖
yml配置文件
server:
port: 8080
spring:
datasource:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://127.0.0.1:3306/userdb?characterEncoding=utf-8&&severTimezone=utc
username: root
password: root
thymeleaf:
mode: HTML5
cache: false
suffix: .html
prefix: classpath:/templates/
mybatis:
mapper-locations: classpath:/mapper/*.xml #引入mapper文件
type-aliases-package: com.bdqn.springsso.pojo #引入类型别名
pom.xml配置文件
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.7.5</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.bdqn</groupId> <artifactId>springsso</artifactId> <version>0.0.1-SNAPSHOT</version> <name>springsso</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>2.2.2</version> </dependency> <dependency> <groupId>com.mysql</groupId> <artifactId>mysql-connector-j</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <excludes> <exclude> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </exclude> </excludes> </configuration> </plugin> </plugins> </build> </project>
在java目录下建立以下几个包，并在resources中建立mapper包
首先进行 pojo层 实体类User 的编写
注意：在MySQL中创建表时 uuid 的数据类型为 varchar 长度一定要给大一点不然就会运行报错
package com.bdqn.springsso.pojo;
import lombok.Data;
@Data
public class User {
//用户id
private Integer id;
//账户
private String username;
//密码
private String password;
//uuid
private String uuid;
}再进行 mapper层 UserMapper接口 的编写
package com.bdqn.springsso.mapper;
import com.bdqn.springsso.pojo.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
@Mapper
public interface UserMapper {
//根据姓名和密码查询
User chekLogin(@Param("username") String username, @Param("password") String password);
//根据姓名修改uuid
void update(@Param("uuid") String uuid,@Param("username") String username);
//根据姓名查询uuid
String getUUID(@Param("username") String username);
}再进行 service层 UserService 和 UserServiceImpl 的编写
package com.bdqn.springsso.service;
import com.bdqn.springsso.pojo.User;
public interface UserService {
//根据姓名和密码查询
User chekLogin(String username, String password);
//根据姓名修改uuid
void update(String uuid,String username);
}package com.bdqn.springsso.service;
import com.bdqn.springsso.mapper.UserMapper;
import com.bdqn.springsso.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserMapper userMapper;
@Override
public User chekLogin(String username, String password) {
return userMapper.chekLogin(username,password);
}
@Override
public void update(String uuid,String username) {
userMapper.update(uuid,username);
}
}再是 interceptor层 UserInterceptor拦截器 的编写
package com.bdqn.springsso.interceptor;
import com.bdqn.springsso.mapper.UserMapper;
import org.springframework.web.servlet.HandlerInterceptor;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class UserInterceptor implements HandlerInterceptor {
private UserMapper userMapper;
public UserInterceptor(UserMapper userMapper){
this.userMapper=userMapper;
}
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
HttpSession session = request.getSession();
String username = (String) session.getAttribute("username");
//数据库
String UUID=userMapper.getUUID(username);
//session
String uuid = (String)session.getAttribute("uuid");
System.out.println("uuid = " + uuid);
System.out.println("UUID = " + UUID);
if(UUID.equals(uuid)){
return true;
}else {
System.out.println("拦截"+request.getRequestURI());
response.sendRedirect("/login");
response.setStatus(401);
return false;
}
}
}再是 controller层 UserController
package com.bdqn.springsso.controller;
import com.bdqn.springsso.pojo.User;
import com.bdqn.springsso.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.servlet.http.HttpSession;
import java.util.UUID;
@Controller
@CrossOrigin
public class UserController {
@Autowired
private UserService userService;
//登录
@RequestMapping("/")
public String goLogin(){
return "login";
}
//登录验证
@RequestMapping("/login")
public String chekLogin(String username, String password, HttpSession session){
User user=userService.chekLogin(username,password);
if (user==null){
return "login";
}else {
session.setAttribute("username",username);
String uuid= UUID.randomUUID().toString().replace("-", "");
System.out.println("uuid = " + uuid);
userService.update(uuid,username);
session.setAttribute("uuid",uuid);
return "index";
}
}
//测试
@RequestMapping("/test")
@ResponseBody
public String test(){
return "成功";
}
}再是 config层 MvcConfig 的编写
package com.bdqn.springsso.config;
import com.bdqn.springsso.interceptor.UserInterceptor;
import com.bdqn.springsso.mapper.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
@Configuration
public class MvcConfig implements WebMvcConfigurer {
@Autowired
private UserMapper userMapper;
@Override
public void addInterceptors(InterceptorRegistry registry) {
//添加拦截器，排除/路径和 /login路径
registry.addInterceptor(new UserInterceptor(userMapper))
.excludePathPatterns("/","/login");
}
}最后是 userMapper.xml 的编写
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.bdqn.springsso.mapper.UserMapper">
<update id="update">
update user set uuid=#{uuid} where username=#{username}
</update>
<select id="chekLogin" resultType="com.bdqn.springsso.pojo.User">
select * from user where username=#{username} and password=#{password}
</select>
<select id="getUUID" resultType="java.lang.String">
select uuid from user where username=#{username}
</select>
</mapper>login.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Login Module</title>
</head>
<body>
<h2 >欢迎来到登录页面</h2>
<form th:action="@{/login}" method="post">
用户：<input type="text" name="username"><br>
密码：<input type="password" name="password"><br>
<button type="submit">登录</button>
</form>
</body>
</html>index.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h2>登录成功</h2>
<a th:href="@{/test}" rel="external nofollow" >测试</a>
</body>
</html>首先我们用火狐浏览器进行操作
输入http://localhost:8080/进入登陆页面
点击登录
点击测试
然后我们返回登陆成功页面
再用谷歌浏览器进入http://localhost:8080/进行登录操作
登录后进入登录成功页面
此时我们返回火狐浏览器
点击测试超链接 发现页面跳转至登录页面
表明单点登录测试成功
关于“SpringBoot单点登录怎么实现”这篇文章的内容就介绍到这里，感谢各位的阅读！相信大家对“SpringBoot单点登录怎么实现”知识都有一定的了解，大家如果还想学习更多知识，欢迎关注亿速云行业资讯频道。
免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
