前言

实现spring security 从数据库读取用户信息验证登录，仅仅能用，不含前端。

配置

pom.xml

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>spring-security-learning</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>spring-security-02</module>
        <module>spring-security-01</module>
        <module>spring-security-03</module>
        <module>spring-security-04</module>
    </modules>

    <properties>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.7.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web-services</artifactId>
        </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>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.80</version>
        </dependency>

        <!--mybatis-plus-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.5.1</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.4.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.3</version>
        </dependency>
    </dependencies>

</project>

application.properties

#spring.datasource.name=mysql
spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/test?useUnicode=true&serverTimezone=Asia/Shanghai&characterEncoding=utf8&autoReconnect=true&useSSL=false&allowMultiQueries=true
spring.datasource.username=xxxxxx
spring.datasource.password=xxxxxx

UserMapper.xml

<?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="org.sample.dao.entity.UserPattern">

    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="org.sample.dao.entity.UserPattern">
        <id column="id" property="id" />
        <result column="username" property="username" />
        <result column="passwd" property="passwd" />
        <result column="enabled" property="enabled" />
        <result column="account_non_expired" property="account_non_expired" />
        <result column="account_non_locked" property="account_non_locked" />
        <result column="credentials_non_expired" property="credentials_non_expired" />
    </resultMap>

    <!-- 通用查询结果列 -->
    <sql id="Base_Column_List">
        id, username, passwd, enabled, account_non_expired, account_non_locked, credentials_non_expired
    </sql>

</mapper>

数据库

在mysql中创建 database 命名为test，创建数据表名为 h_user：

CREATE TABLE `h_user` (
  `id` int unsigned NOT NULL AUTO_INCREMENT COMMENT 'id',
  `username` varchar(255) NOT NULL,
  `passwd` varchar(255) NOT NULL,
  `enabled` tinyint(1) NOT NULL,
  `account_non_expired` tinyint(1) NOT NULL,
  `account_non_locked` tinyint(1) NOT NULL,
  `credentials_non_expired` tinyint(1) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;

插入数据如下：

在这里插入图片描述

编码

启动类

MainApplication.java

package org.sample;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@MapperScan("org.sample.dao.mapper")
public class MainApplication {

    public static void main(String[] args) {
        SpringApplication.run(MainApplication.class, args);
    }
}

dao.entity

UserPattern.java

package org.sample.dao.entity;

import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;
import org.springframework.security.core.GrantedAuthority;

import java.io.Serializable;
import java.util.Collection;
import java.util.List;

/**
 * 测试用entity
 *
 * @author 
 * @since 2022-05-09
 */
@Data
@NoArgsConstructor
@AllArgsConstructor
@EqualsAndHashCode(callSuper = false)
@TableName(value = "test.h_user")
public class UserPattern implements Serializable {

    /**
     * ID
     */
    @TableId(value = "id", type = IdType.AUTO)
    private Long id;

    /**
     * 用户名 userName
     */
    @TableField(value = "username")
    private String username;

    /**
     * 密码 password
     */
    @TableField(value = "passwd")
    private String password;

    @TableField(value = "enabled")
    private int enabled;

    @TableField(value = "account_non_expired")
    private int accountNonExpired;

    @TableField(value = "account_non_locked")
    private int accountNonLocked;

    @TableField(value = "credentials_non_expired")
    private int credentialsNonExpired;

}

controller

HelloController.java

package org.sample.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

    @RequestMapping("/sayHello")
    public String sayHello(){
        return "十年生死两茫茫，不思量，自难忘----苏轼，hello";
    }
}

dao.mapper

UserServiceMapper.java

package org.sample.dao.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.sample.dao.entity.UserPattern;

/**
 *
 * @author 
 * @since 2022-05-09
 */
public interface UserServiceMapper extends BaseMapper<UserPattern> {
}

service

UserService.java

package org.sample.service;

import com.baomidou.mybatisplus.extension.service.IService;
import org.sample.dao.entity.UserPattern;

/**
 *
 * @author 
 * @since 2022-05-09
 */
public interface UserService extends IService<UserPattern> {

    UserPattern loadByUserName(String username);
}

UserServiceImpl.java

package org.sample.service.Impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.sample.dao.entity.UserPattern;
import org.sample.dao.mapper.UserServiceMapper;
import org.sample.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;

@Service
public class UserServiceImpl extends ServiceImpl<UserServiceMapper, UserPattern> implements UserService, UserDetailsService {

    @Autowired
    private UserServiceMapper userServiceMapper;

    /**
     * 方法一
     * auth.userDetailsService(userDetailsService())
     * @param username
     * @return
     */
    @Override
    public UserPattern loadByUserName(String username) {
        List<UserPattern> userPatterns = userServiceMapper.selectList(Wrappers.lambdaQuery(UserPattern.class)
                .likeLeft(UserPattern::getUsername, username)
                .likeRight(UserPattern::getUsername, username)
        );
        UserPattern userPattern = userPatterns.get(0);
        return userPattern;
    }

    /**
     * 方法二
     * auth.userDetailsService(userDetailsService)
     * @param username
     * @return
     * @throws UsernameNotFoundException
     */
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        List<UserPattern> userPatterns = userServiceMapper.selectList(Wrappers.lambdaQuery(UserPattern.class)
                .likeLeft(UserPattern::getUsername, username)
                .likeRight(UserPattern::getUsername, username)
        );
        UserPattern userPattern = userPatterns.get(0);
        // 如果查不到用户名，这里可以抛出UsernameNotFoundException异常
        // 根据username查询权限，这里假设从任意位置查到权限是auth
        List<GrantedAuthority> authorities = new ArrayList<>();
        authorities.add(new SimpleGrantedAuthority("auth"));
        return new User(userPattern.getUsername(), userPattern.getPassword(), true, true, true, true, authorities);
    }
}

config

SecurityConfig.java

package org.sample.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.password.NoOpPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.security.core.GrantedAuthority;
import org.sample.dao.entity.UserPattern;
import org.sample.service.UserService;

import java.util.ArrayList;
import java.util.List;

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserService userService;

    @Autowired
    private UserDetailsService userDetailsService;

    /**
     * PasswordEncoder 是密码加密接口，因为我们是循序渐进的，我这里先用无加密实例
     * @return
     */
    @Bean
    PasswordEncoder passwordEncoder() {
        return NoOpPasswordEncoder.getInstance();
    }

    /**
     * 方法二：
     * auth.userDetailsService(userDetailsService)
     * 实现configure(AuthenticationManagerBuilder auth)配置方法
     * @param auth
     * @throws Exception
     */
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService)  //自定义构建
                .passwordEncoder(NoOpPasswordEncoder.getInstance());
    }

    /**
     * 方法一
     * auth.userDetailsService(userDetailsService())
     */
//    @Bean
//    public UserDetailsService userDetailsService(){
//        return new UserDetailsService() {
//            // username是用户登录时填的用户名
//            public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
//                UserPattern user = new UserPattern();
//                user.setUsername("mike");
//                user.setPassword("123456");
//                try {
//                    user = userService.loadByUserName(username);
//                } catch (Exception e) {
//                    e.printStackTrace();
//                }
//
//                // 如果查不到用户名，这里可以抛出UsernameNotFoundException异常
//                // 根据username查询权限，这里假设从任意位置查到权限是auth
//                List<GrantedAuthority> authorities = new ArrayList<>();
//                authorities.add(new SimpleGrantedAuthority("auth"));
//                // User是系统自带的UserDetails实现类，4个状态其中一个为false就会抛异常
//                return new User(user.getUsername(), user.getPassword(), true, true, true, true, authorities);
//            }
//        };
//    }

    /**
     * 通过HttpSecurity 对象，获取到表单登录配置对象，修改对应的用户名和密码参数名称，即可完成自定义用户名和密码参数名称
     * @param http
     * @throws Exception
     */
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .anyRequest()
                .authenticated()
                .and()
                .formLogin()
                .loginPage("/login.html")
                .loginProcessingUrl("/login")
                .usernameParameter("username")
                .passwordParameter("password")
                .successForwardUrl("/home")
                .permitAll()
                .and()
                .csrf().disable()
        ;
    }

}