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這篇文章主要介紹了SpringBoot單點登錄怎么實現的相關知識，內容詳細易懂，操作簡單快捷，具有一定借鑒價值，相信大家閱讀完這篇SpringBoot單點登錄怎么實現文章都會有所收獲，下面我們一起來看看吧。
添加攔截器,設置UUID作為唯一標識，存入數據庫中
通過當前登陸者的賬戶進行查詢
如果當前登陸者session中存入的UUID與我們數據庫中的UUID值相同則通過
否則返回false,表示已在其他設備或瀏覽器登錄登錄
首先我們新建一個Spring項目
添加以下幾個依賴
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 #引入類型別名
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目錄下建立以下幾個包，并在resources中建立mapper包
首先進行 pojo層 實體類User 的編寫
注意：在MySQL中創建表時 uuid 的數據類型為 varchar 長度一定要給大一點不然就會運行報錯
package com.bdqn.springsso.pojo;
import lombok.Data;
@Data
public class User {
//用戶id
private Integer id;
//賬戶
private String username;
//密碼
private String password;
//uuid
private String uuid;
}再進行 mapper層 UserMapper接口 的編寫
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 {
//根據姓名和密碼查詢
User chekLogin(@Param("username") String username, @Param("password") String password);
//根據姓名修改uuid
void update(@Param("uuid") String uuid,@Param("username") String username);
//根據姓名查詢uuid
String getUUID(@Param("username") String username);
}再進行 service層 UserService 和 UserServiceImpl 的編寫
package com.bdqn.springsso.service;
import com.bdqn.springsso.pojo.User;
public interface UserService {
//根據姓名和密碼查詢
User chekLogin(String username, String password);
//根據姓名修改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層 UserInterceptor攔截器 的編寫
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");
//數據庫
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("攔截"+request.getRequestURI());
response.sendRedirect("/login");
response.setStatus(401);
return false;
}
}
}再是 controller層 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;
//登錄
@RequestMapping("/")
public String goLogin(){
return "login";
}
//登錄驗證
@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";
}
}
//測試
@RequestMapping("/test")
@ResponseBody
public String test(){
return "成功";
}
}再是 config層 MvcConfig 的編寫
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) {
//添加攔截器，排除/路徑和 /login路徑
registry.addInterceptor(new UserInterceptor(userMapper))
.excludePathPatterns("/","/login");
}
}最后是 userMapper.xml 的編寫
<?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 >歡迎來到登錄頁面</h2>
<form th:action="@{/login}" method="post">
用戶：<input type="text" name="username"><br>
密碼：<input type="password" name="password"><br>
<button type="submit">登錄</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>登錄成功</h2>
<a th:href="@{/test}" rel="external nofollow" >測試</a>
</body>
</html>首先我們用火狐瀏覽器進行操作
輸入http://localhost:8080/進入登陸頁面
點擊登錄
點擊測試
然后我們返回登陸成功頁面
再用谷歌瀏覽器進入http://localhost:8080/進行登錄操作
登錄后進入登錄成功頁面
此時我們返回火狐瀏覽器
點擊測試超鏈接 發現頁面跳轉至登錄頁面
表明單點登錄測試成功
關于“SpringBoot單點登錄怎么實現”這篇文章的內容就介紹到這里，感謝各位的閱讀！相信大家對“SpringBoot單點登錄怎么實現”知識都有一定的了解，大家如果還想學習更多知識，歡迎關注億速云行業資訊頻道。
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