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SpringSecurity(三)SpringBoot集成SpringSecurity实现认证授权

article 2024/11/8 3:55:05

  • SpringSecurity(一)基础知识

  • SpringSecurity(二)用户认证定制和用户授权

一、简介

前面学习了Spring Security 认证与授权原理，在之前的文章也学习了JWT，现在就通过一个SpringBoot项目集成Spring Security、JWT、Redis、Mybaties-Plus实现常见的用户认证与授权。

要实现的目标：

  1. 自定义登录接口，实现基于SpringSecurity的认证，并生成JWT，将信息存入Redis中。
  2. 定义JWT认证过滤器，获取Token，并解析Token，从Redis中获取用户信息。
  3. 自定义权限校验方法，从数据库查询权限信息，通过校验注解进行校验。

二、实现

新建SpringBoot项目SpringBootSpringSecurityApplication

1、添加依赖
<?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>com.duan</groupId>
    <artifactId>SpringBoot-SpringSecurity</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.3</version>
    </parent>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <version>2.4.3</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>2.4.3</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <version>2.4.3</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.2</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13.2</version>
            <scope>test</scope>
        </dependency>


        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.50</version>
        </dependency>

        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>20.0</version>
        </dependency>


        <!--mybatisPlus依赖-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.3</version>
        </dependency>

        <!--mysql-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.23</version>
        </dependency>

        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-annotations</artifactId>
            <version>1.5.21</version>
        </dependency>

        <dependency>
            <groupId>io.swagger</groupId>
            <artifactId>swagger-models</artifactId>
            <version>1.5.21</version>
        </dependency>

        <!--redis依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

        <!--jwt依赖-->
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.0</version>
        </dependency>

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

        </dependencies>


</project>
2、添加Redis相关配置

config包下添加RedisConfig配置类

package com.duan.config;
import com.duan.utils.FastJsonRedisSerializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;


/**
 * @author db
 * @version 1.0
 * @description RedisConfig
 * @since 2024/9/22
 */

@Configuration
public class RedisConfig {

    @Bean
    @SuppressWarnings(value = { "unchecked", "rawtypes" })
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory)
    {
        RedisTemplate<Object, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(connectionFactory);

        FastJsonRedisSerializer serializer = new FastJsonRedisSerializer(Object.class);

        // 使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(new StringRedisSerializer());
        template.setValueSerializer(serializer);

        // Hash的key也采用StringRedisSerializer的序列化方式
        template.setHashKeySerializer(new StringRedisSerializer());
        template.setHashValueSerializer(serializer);

        template.afterPropertiesSet();
        return template;
    }
}

utils包下添加FastJsonRedisSerializer

package com.duan.utils;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.type.TypeFactory;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;
import com.alibaba.fastjson.parser.ParserConfig;
import org.springframework.util.Assert;
import java.nio.charset.Charset;

/**
 * Redis使用FastJson序列化
 * @author db
 * @version 1.0
 * @description FastJsonRedisSerializer
 * @since 2024/9/22
 */


public class FastJsonRedisSerializer<T> implements RedisSerializer<T>
{

    public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");

    private Class<T> clazz;

    static
    {
        ParserConfig.getGlobalInstance().setAutoTypeSupport(true);
    }

    public FastJsonRedisSerializer(Class<T> clazz)
    {
        super();
        this.clazz = clazz;
    }

    @Override
    public byte[] serialize(T t) throws SerializationException
    {
        if (t == null)
        {
            return new byte[0];
        }
        return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
    }

    @Override
    public T deserialize(byte[] bytes) throws SerializationException
    {
        if (bytes == null || bytes.length <= 0)
        {
            return null;
        }
        String str = new String(bytes, DEFAULT_CHARSET);

        return JSON.parseObject(str, clazz);
    }


    protected JavaType getJavaType(Class<?> clazz)
    {
        return TypeFactory.defaultInstance().constructType(clazz);
    }
}

config包下添加Redis缓存相关信息

package com.duan.config;

/**
 * @author db
 * @version 1.0
 * @description RedisCache
 * @since 2024/9/22
 */

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.BoundSetOperations;
import org.springframework.data.redis.core.HashOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Component;

import java.util.*;
import java.util.concurrent.TimeUnit;

@SuppressWarnings(value = { "unchecked", "rawtypes" })
@Component
public class RedisCache
{
    @Autowired
    public RedisTemplate redisTemplate;

    /**
     * 缓存基本的对象，Integer、String、实体类等
     *
     * @param key 缓存的键值
     * @param value 缓存的值
     */
    public <T> void setCacheObject(final String key, final T value)
    {
        redisTemplate.opsForValue().set(key, value);
    }

    /**
     * 缓存基本的对象，Integer、String、实体类等
     *
     * @param key 缓存的键值
     * @param value 缓存的值
     * @param timeout 时间
     * @param timeUnit 时间颗粒度
     */
    public <T> void setCacheObject(final String key, final T value, final Integer timeout, final TimeUnit timeUnit)
    {
        redisTemplate.opsForValue().set(key, value, timeout, timeUnit);
    }

    /**
     * 设置有效时间
     *
     * @param key Redis键
     * @param timeout 超时时间
     * @return true=设置成功；false=设置失败
     */
    public boolean expire(final String key, final long timeout)
    {
        return expire(key, timeout, TimeUnit.SECONDS);
    }

    /**
     * 设置有效时间
     *
     * @param key Redis键
     * @param timeout 超时时间
     * @param unit 时间单位
     * @return true=设置成功；false=设置失败
     */
    public boolean expire(final String key, final long timeout, final TimeUnit unit)
    {
        return redisTemplate.expire(key, timeout, unit);
    }

    /**
     * 获得缓存的基本对象。
     *
     * @param key 缓存键值
     * @return 缓存键值对应的数据
     */
    public <T> T getCacheObject(final String key)
    {
        ValueOperations<String, T> operation = redisTemplate.opsForValue();
        return operation.get(key);
    }

    /**
     * 删除单个对象
     *
     * @param key
     */
    public boolean deleteObject(final String key)
    {
        return redisTemplate.delete(key);
    }

    /**
     * 删除集合对象
     *
     * @param collection 多个对象
     * @return
     */
    public long deleteObject(final Collection collection)
    {
        return redisTemplate.delete(collection);
    }

    /**
     * 缓存List数据
     *
     * @param key 缓存的键值
     * @param dataList 待缓存的List数据
     * @return 缓存的对象
     */
    public <T> long setCacheList(final String key, final List<T> dataList)
    {
        Long count = redisTemplate.opsForList().rightPushAll(key, dataList);
        return count == null ? 0 : count;
    }

    /**
     * 获得缓存的list对象
     *
     * @param key 缓存的键值
     * @return 缓存键值对应的数据
     */
    public <T> List<T> getCacheList(final String key)
    {
        return redisTemplate.opsForList().range(key, 0, -1);
    }

    /**
     * 缓存Set
     *
     * @param key 缓存键值
     * @param dataSet 缓存的数据
     * @return 缓存数据的对象
     */
    public <T> BoundSetOperations<String, T> setCacheSet(final String key, final Set<T> dataSet)
    {
        BoundSetOperations<String, T> setOperation = redisTemplate.boundSetOps(key);
        Iterator<T> it = dataSet.iterator();
        while (it.hasNext())
        {
            setOperation.add(it.next());
        }
        return setOperation;
    }

    /**
     * 获得缓存的set
     *
     * @param key
     * @return
     */
    public <T> Set<T> getCacheSet(final String key)
    {
        return redisTemplate.opsForSet().members(key);
    }

    /**
     * 缓存Map
     *
     * @param key
     * @param dataMap
     */
    public <T> void setCacheMap(final String key, final Map<String, T> dataMap)
    {
        if (dataMap != null) {
            redisTemplate.opsForHash().putAll(key, dataMap);
        }
    }

    /**
     * 获得缓存的Map
     *
     * @param key
     * @return
     */
    public <T> Map<String, T> getCacheMap(final String key)
    {
        return redisTemplate.opsForHash().entries(key);
    }

    /**
     * 往Hash中存入数据
     *
     * @param key Redis键
     * @param hKey Hash键
     * @param value 值
     */
    public <T> void setCacheMapValue(final String key, final String hKey, final T value)
    {
        redisTemplate.opsForHash().put(key, hKey, value);
    }

    /**
     * 获取Hash中的数据
     *
     * @param key Redis键
     * @param hKey Hash键
     * @return Hash中的对象
     */
    public <T> T getCacheMapValue(final String key, final String hKey)
    {
        HashOperations<String, String, T> opsForHash = redisTemplate.opsForHash();
        return opsForHash.get(key, hKey);
    }

    /**
     * 删除Hash中的数据
     *
     * @param key
     * @param hkey
     */
    public void delCacheMapValue(final String key, final String hkey)
    {
        HashOperations hashOperations = redisTemplate.opsForHash();
        hashOperations.delete(key, hkey);
    }

    /**
     * 获取多个Hash中的数据
     *
     * @param key Redis键
     * @param hKeys Hash键集合
     * @return Hash对象集合
     */
    public <T> List<T> getMultiCacheMapValue(final String key, final Collection<Object> hKeys)
    {
        return redisTemplate.opsForHash().multiGet(key, hKeys);
    }

    /**
     * 获得缓存的基本对象列表
     *
     * @param pattern 字符串前缀
     * @return 对象列表
     */
    public Collection<String> keys(final String pattern)
    {
        return redisTemplate.keys(pattern);
    }
}
3、添加响应类ResponseResult
package com.duan.utils;

import com.fasterxml.jackson.annotation.JsonInclude;

import java.io.Serializable;

/**
 * @author db
 * @version 1.0
 * @description ResponseResult
 * @since 2023/7/12
 */
@JsonInclude(JsonInclude.Include.NON_NULL)
public class ResponseResult<T> implements Serializable {
    private static final long serialVersionUID = 2233637474601103587L;

    // 接口响应状态码
    private Integer code;

    // 接口响应信息
    private String msg;

    // 接口响应的数据
    private T data;

    public ResponseResult() {
        this.code = AppHttpCodeEnum.SUCCESS.getCode();
        this.msg = AppHttpCodeEnum.SUCCESS.getMsg();
    }

    public ResponseResult(Integer code, T data) {
        this.code = code;
        this.data = data;
    }

    public ResponseResult(Integer code, String msg, T data) {
        this.code = code;
        this.msg = msg;
        this.data = data;
    }

    public ResponseResult(Integer code, String msg) {
        this.code = code;
        this.msg = msg;
    }

    public static ResponseResult errorResult(int code, String msg) {
        ResponseResult result = new ResponseResult();
        return result.error(code, msg);
    }

    public static ResponseResult okResult() {
        ResponseResult result = new ResponseResult();
        return result;
    }

    public static ResponseResult okResult(int code, String msg) {
        ResponseResult result = new ResponseResult();
        return result.ok(code, null, msg);
    }

    public static ResponseResult okResult(Object data) {
        ResponseResult result = setAppHttpCodeEnum(AppHttpCodeEnum.SUCCESS, AppHttpCodeEnum.SUCCESS.getMsg());
        if (data != null) {
            result.setData(data);
        }
        return result;
    }

    public static ResponseResult errorResult(AppHttpCodeEnum enums) {
        return setAppHttpCodeEnum(enums, enums.getMsg());
    }

    public static ResponseResult errorResult(AppHttpCodeEnum enums, String msg) {
        return setAppHttpCodeEnum(enums, msg);
    }

    public static ResponseResult setAppHttpCodeEnum(AppHttpCodeEnum enums) {
        return okResult(enums.getCode(), enums.getMsg());
    }

    private static ResponseResult setAppHttpCodeEnum(AppHttpCodeEnum enums, String msg) {
        return okResult(enums.getCode(), msg);
    }

    public ResponseResult<?> error(Integer code, String msg) {
        this.code = code;
        this.msg = msg;
        return this;
    }

    public ResponseResult<?> ok(Integer code, T data) {
        this.code = code;
        this.data = data;
        return this;
    }

    public ResponseResult<?> ok(Integer code, T data, String msg) {
        this.code = code;
        this.data = data;
        this.msg = msg;
        return this;
    }

    public ResponseResult<?> ok(T data) {
        this.data = data;
        return this;
    }

    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public T getData() {
        return data;
    }

    public void setData(T data) {
        this.data = data;
    }
}

utils包下添加枚举信息AppHttpCodeEnum

package com.duan.utils;

/**
 * @author db
 * @version 1.0
 * @description AppHttpCodeEnum
 * @since 2023/7/12
 */
public enum AppHttpCodeEnum {
    // 成功
    SUCCESS(200,"操作成功"),
    // 失败
    ERROR(500,"操作失败"),
    // 登录
    NEED_LOGIN(401,"需要登录后操作"),
    NO_OPERATOR_AUTH(403,"无权限操作"),
    SYSTEM_ERROR(500,"出现错误"),
    USERNAME_EXIST(501,"用户名已存在"),
    PHONENUMBER_EXIST(502,"手机号已存在"),
    EMAIL_EXIST(503, "邮箱已存在"),
    REQUIRE_USERNAME(504, "必需填写用户名"),
    LOGIN_ERROR(505,"用户名或密码错误");


    int code;
    String msg;

    AppHttpCodeEnum(int code, String errorMessage){
        this.code = code;
        this.msg = errorMessage;
    }

    public int getCode() {
        return code;
    }

    public String getMsg() {
        return msg;
    }
}
4、添加JWT工具类

utils包下添加JwtUtil

package com.duan.utils;

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.JwtBuilder;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;

import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.util.Base64;
import java.util.Date;
import java.util.UUID;

/**
 * @author db
 * @version 1.0
 * @description JwtUtil
 * @since 2022/11/23
 */
public class JwtUtil {
    //有效期为
    public static final Long JWT_TTL = 60 * 60 *1000L;// 60 * 60 *1000  一个小时
    //设置秘钥明文
    public static final String JWT_KEY = "cxyxkk";

    public static String getUUID(){
        String token = UUID.randomUUID().toString().replaceAll("-", "");
        return token;
    }

    /**
     * 生成jtw
     * @param subject token中要存放的数据（json格式）
     * @return
     */
    public static String createJWT(String subject) {
        JwtBuilder builder = getJwtBuilder(subject, null, getUUID());// 设置过期时间
        return builder.compact();
    }

    /**
     * 生成jtw
     * @param subject token中要存放的数据（json格式）
     * @param ttlMillis token超时时间
     * @return
     */
    public static String createJWT(String subject, Long ttlMillis) {
        JwtBuilder builder = getJwtBuilder(subject, ttlMillis, getUUID());// 设置过期时间
        return builder.compact();
    }

    private static JwtBuilder getJwtBuilder(String subject, Long ttlMillis, String uuid) {
        SignatureAlgorithm signatureAlgorithm = SignatureAlgorithm.HS256;
        SecretKey secretKey = generalKey();
        long nowMillis = System.currentTimeMillis();
        Date now = new Date(nowMillis);
        if(ttlMillis==null){
            ttlMillis= JwtUtil.JWT_TTL;
        }
        long expMillis = nowMillis + ttlMillis;
        Date expDate = new Date(expMillis);
        return Jwts.builder()
                .setId(uuid)              //唯一的ID
                .setSubject(subject)   // 主题  可以是JSON数据
                .setIssuer("cxykk")     // 签发者
                .setIssuedAt(now)      // 签发时间
                .signWith(signatureAlgorithm, secretKey) //使用HS256对称加密算法签名, 第二个参数为秘钥
                .setExpiration(expDate);
    }

    /**
     * 创建token
     * @param id
     * @param subject
     * @param ttlMillis
     * @return
     */
    public static String createJWT(String id, String subject, Long ttlMillis) {
        JwtBuilder builder = getJwtBuilder(subject, ttlMillis, id);// 设置过期时间
        return builder.compact();
    }

    /**
     * 生成加密后的秘钥 secretKey
     * @return
     */
    public static SecretKey generalKey() {
        byte[] encodedKey = Base64.getDecoder().decode(JwtUtil.JWT_KEY);
        SecretKey key = new SecretKeySpec(encodedKey, 0, encodedKey.length, "AES");
        return key;
    }

    /**
     * 解析
     *
     * @param jwt
     * @return
     * @throws Exception
     */
    public static Claims parseJWT(String jwt) throws Exception {
        SecretKey secretKey = generalKey();
        return Jwts.parser()
                .setSigningKey(secretKey)
                .parseClaimsJws(jwt)
                .getBody();
    }
}
5、用户实体类

pojo包下新建SysUser实体类

package com.duan.pojo;

import com.baomidou.mybatisplus.annotation.FieldFill;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import com.fasterxml.jackson.annotation.JsonFormat;
import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;
import java.util.Date;

/**
 * 用户表(SysUser)表实体类
 *
 * @author db
 * @since 2024-09-22 19:49:48
 */
@SuppressWarnings("serial")
@Data
@AllArgsConstructor
@NoArgsConstructor
@TableName("sys_user")
public class SysUser implements Serializable {

    private static final long serialVersionUID = 767991252105621231L;

    //主键
    @TableId
    private Long id;

    @ApiModelProperty("用户名")
    @TableField("user_name")
    private String userName;

    @ApiModelProperty("密码")
    @TableField("password")
    private String password;

    @ApiModelProperty("创建日期")
    @TableField(value = "create_time",fill = FieldFill.INSERT)
    @JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
    private Date createTime;

    @ApiModelProperty("更新日期")
    @TableField(value = "update_time",fill = FieldFill.INSERT_UPDATE)
    @JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
    private Date updateTime;

}

我们从前面文章所知，我们需要从数据库校验用户，所以需要先新建数据库、数据表等信息。先创建一个用户表，建表语句如下所示：

CREATE TABLE `sys_user` (
  `id` BIGINT(20) NOT NULL AUTO_INCREMENT COMMENT '主键',
  `user_name` VARCHAR(64) NOT NULL DEFAULT 'NULL' COMMENT '用户名',
  `password` VARCHAR(64) NOT NULL DEFAULT 'NULL' COMMENT '密码',
  `create_time` DATETIME DEFAULT NULL COMMENT '创建时间',
  `update_time` DATETIME DEFAULT NULL COMMENT '更新时间',
  PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8mb4 COMMENT='用户表'

配置文件配置数据库信息。

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/security_test?serverTimezone=Asia/Shanghai&characterEncoding=utf8&useSSL=false
    username: root
    password: 123456
    driver-class-name: com.mysql.cj.jdbc.Driver

定义Mapper接口在Mapper包中新建SysUserMapper

package com.duan.mapper;


import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.duan.pojo.SysUser;
import org.apache.ibatis.annotations.Mapper;


/**
 * 用户表(SysUser)表数据库访问层
 *
 * @author db
 * @since 2024-09-22 19:49:45
 */
@Mapper
public interface SysUserMapper extends BaseMapper<SysUser> {

}

在启动类上配置包扫描路径。

package com.duan;

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

/**
 * @author db
 * @version 1.0
 * @description SpringBootSpringSecurityApplication
 * @since 2024/9/22
 */
@SpringBootApplication
@MapperScan("com.duan.mapper")
public class SpringBootSpringSecurityApplication {
    public static void main(String[] args) {
        SpringApplication.run(SpringBootSpringSecurityApplication.class);
    }
}

在测试类上测试MP是否能正常使用。

package com.duan;

import com.duan.mapper.SysMenuMapper;
import com.duan.mapper.SysUserMapper;
import com.duan.pojo.SysUser;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import javax.annotation.Resource;
import java.util.List;

/**
 * @author db
 * @version 1.0
 * @description TestSecurity
 * @since 2024/9/22
 */
@SpringBootTest
@RunWith(SpringRunner.class)
public class TestSecurity {

    @Resource
    private SysUserMapper sysUserMapper;

    @Test
    public void test(){
        SysUser sysUser = sysUserMapper.selectById(2);
        System.out.println(sysUser.toString());
        List<SysUser> sysUsers = sysUserMapper.selectList(null);
        System.out.println(sysUsers.toString());
    }
}

@RunWith(SpringRunner.class) 是 JUnit 测试框架中的一个注解，用于指定测试运行器（Test Runner）。它的主要作用是将 Spring 的测试支持集成到 JUnit 测试中，使得在运行 JUnit 测试时，Spring 的上下文可以被正确地加载和配置。

6、从数据库查询用户信息

创建一个类实现UserDetailsService，重写其中方法。

package com.duan.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.duan.exception.SpringSecurityException;
import com.duan.mapper.SysMenuMapper;
import com.duan.mapper.SysUserMapper;
import com.duan.pojo.LoginUser;
import com.duan.pojo.SysUser;
import com.duan.utils.AppHttpCodeEnum;
import org.springframework.beans.factory.annotation.Autowired;
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.List;

/**
 * @author db
 * @version 1.0
 * @description UserDetailsServiceImpl
 * @since 2024/9/22
 */
@Service
public class UserDetailsServiceImpl implements UserDetailsService {
    @Autowired
    private SysUserMapper sysUserMapper;

    @Autowired
    private SysMenuMapper sysMenuMapper;

    @Override
    public UserDetails loadUserByUsername(String username) {
        LambdaQueryWrapper<SysUser> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(SysUser::getUserName,username);
        SysUser sysUser = sysUserMapper.selectOne(queryWrapper);
        if(sysUser == null){
            throw new SpringSecurityException(AppHttpCodeEnum.LOGIN_ERROR.getCode(),AppHttpCodeEnum.LOGIN_ERROR.getMsg());
        }
        //根据用户查询权限信息 添加到LoginUser中
        //封装成UserDetails对象返回
        return new LoginUser(sysUser);
    }
}

UserDetailsService方法的返回值是UserDetails类型，所以需要定义一个类，实现该接口，把用户信息封装在其中。

package com.duan.pojo;

import com.alibaba.fastjson.annotation.JSONField;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;

/**
 * @author db
 * @version 1.0
 * @description LoginUser
 * @since 2024/9/22
 */
@Data
@NoArgsConstructor
public class LoginUser implements UserDetails {
    private SysUser sysUser;

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return null;
    }

    @Override
    public String getPassword() {
        return sysUser.getPassword();
    }

    @Override
    public String getUsername() {
        return sysUser.getUserName();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}
7、登录接口

需要自定义登陆接口，然后让Spring Security对这个接口放行，让用户访问这个接口的时候不用登录也能访问。

在接口中我们通过AuthenticationManager的authenticate方法来进行用户认证，所以需要在SecurityConfig中配置把AuthenticationManager注入容器。

认证成功的话要生成一个jwt，放入响应中返回。并且为了让用户下回请求时能通过jwt识别出具体的是哪个用户，我们需要把用户信息存入redis，可以把用户id作为key。

package com.duan.controller;

import com.duan.pojo.SysUser;
import com.duan.service.LoginService;
import com.duan.utils.ResponseResult;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author db
 * @version 1.0
 * @description LoginController
 * @since 2024/9/24
 */
@RestController
public class LoginController {
    @Autowired
    private LoginService loginService;

    @PostMapping("/user/login")
    public ResponseResult login(@RequestBody SysUser sysUser){
        String jwt = loginService.login(sysUser);
        HashMap<String, Object> map = new HashMap<>();
        map.put("token",jwt);
        return ResponseResult.okResult(map);
    }
}

package com.duan.service.impl;

import com.duan.config.RedisCache;
import com.duan.pojo.LoginUser;
import com.duan.pojo.SysUser;
import com.duan.service.LoginService;
import com.duan.utils.JwtUtil;
import com.duan.utils.ResponseResult;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.stereotype.Service;

import java.util.Objects;

/**
 * @author db
 * @version 1.0
 * @description LoginServiceImpl
 * @since 2024/9/24
 */
@Service
public class LoginServiceImpl implements LoginService {

    @Autowired
    private AuthenticationManager authenticationManager;
    @Autowired
    private RedisCache redisCache;

    @Override
    public String login(SysUser sysUser) {
        UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(sysUser.getUserName(),sysUser.getPassword());
        Authentication authenticate = authenticationManager.authenticate(authenticationToken);
        if(Objects.isNull(authenticate)){
            throw new RuntimeException("用户名或密码错误");
        }
        //使用userId生成token
        LoginUser loginUser = (LoginUser) authenticate.getPrincipal();
        String userId = loginUser.getSysUser().getId().toString();
        String jwt = JwtUtil.createJWT(userId);
        //authenticate存入redis
        redisCache.setCacheObject("login:"+userId,loginUser);

        return jwt;
    }
}

package com.duan.service;

import com.duan.pojo.SysUser;

/**
 * @author db
 * @version 1.0
 * @description LoginServcie
 * @since 2024/9/24
 */
public interface LoginService {
    String login(SysUser sysUser);
}

在config包下新建SecurityConfig配置类

package com.duan.config;

import com.duan.filter.JwtAuthenticationTokenFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

/**
 * @author db
 * @version 1.0
 * @description SecurityConfig
 * @since 2024/9/22
 */
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Bean
    public PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                //关闭csrf
                .csrf().disable()
                //不通过Session获取SecurityContext
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                // 对于登录接口 允许匿名访问
                .antMatchers("/user/login").anonymous()
                // 除上面外的所有请求全部需要鉴权认证
                .anyRequest().authenticated();
    }


    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
}

其中项目中我们一般是密码加密存储，一般使用SpringSecurity为我们提供的BCryptPasswordEncoder，所以配置文件中把BCryptPasswordEncoder对象注入Spring容器中，SpringSecurity就会使用该PasswordEncoder来进行密码校验。

8、认证过滤器

需要自定义一个过滤器，这个过滤器会获取请求头中的Token，对Token进行解析获得userid。

使用userid去redis中获取对应的LoginUser对象。

然后封装Authentication对象存入SecurityContextHolder。

filter包下新建JwtAuthenticationTokenFilter

package com.duan.filter;

import com.duan.config.RedisCache;
import com.duan.pojo.LoginUser;
import com.duan.utils.JwtUtil;
import io.jsonwebtoken.Claims;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.filter.OncePerRequestFilter;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Objects;

/**
 * @author db
 * @version 1.0
 * @description JwtAuthenticationTokenFilter
 * @since 2024/9/24
 */
@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {
    @Autowired
    private RedisCache redisCache;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
        //获取token
        String token = request.getHeader("token");
        if (!StringUtils.hasText(token)) {
            //放行
            filterChain.doFilter(request, response);
            return;
        }
        //解析token
        String userid;
        try {
            Claims claims = JwtUtil.parseJWT(token);
            userid = claims.getSubject();
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException("token非法");
        }
        //从redis中获取用户信息
        String redisKey = "login:" + userid;
        LoginUser loginUser = redisCache.getCacheObject(redisKey);
        if(Objects.isNull(loginUser)){
            throw new RuntimeException("用户未登录");
        }
        //存入SecurityContextHolder
        // 获取权限信息封装到Authentication中
        UsernamePasswordAuthenticationToken authenticationToken =
                new UsernamePasswordAuthenticationToken(loginUser,null,null);
        SecurityContextHolder.getContext().setAuthentication(authenticationToken);
        //放行
        filterChain.doFilter(request, response);
    }
}

在 SecurityConfig 中把Token校验过滤器添加到过滤器链中。

package com.duan.config;

import com.duan.filter.JwtAuthenticationTokenFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

/**
 * @author db
 * @version 1.0
 * @description SecurityConfig
 * @since 2024/9/22
 */
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;

    @Bean
    public PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                //关闭csrf
                .csrf().disable()
                //不通过Session获取SecurityContext
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                // 对于登录接口 允许匿名访问
                .antMatchers("/user/login").anonymous()
                // 除上面外的所有请求全部需要鉴权认证
                .anyRequest().authenticated();

        //把token校验过滤器添加到过滤器链中
        http.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter .class);

    }

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
}
9、退出登录

定义一个退出登录接口，然后获取SecurityContextHolder中的认证信息，删除redis中对应的数据即可。

package com.duan.controller;

import com.duan.config.RedisCache;
import com.duan.pojo.LoginUser;
import com.duan.pojo.SysUser;
import com.duan.service.LoginService;
import com.duan.utils.ResponseResult;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author db
 * @version 1.0
 * @description LoginController
 * @since 2024/9/24
 */
@RestController
public class LoginController {
    @Autowired
    private LoginService loginService;

    @Autowired
    private RedisCache redisCache;

    @PostMapping("/user/login")
    public ResponseResult login(@RequestBody SysUser sysUser){
        String jwt = loginService.login(sysUser);
        HashMap<String, Object> map = new HashMap<>();
        map.put("token",jwt);
        return ResponseResult.okResult(map);
    }

    @PostMapping("/user/logout")
    public ResponseResult logout(){
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        LoginUser loginUser = (LoginUser) authentication.getPrincipal();
        Long id = loginUser.getSysUser().getId();
        redisCache.deleteObject("login:"+id);
        return ResponseResult.okResult();
    }
}
10、测试登录接口，获得token

访问http://localhost:8088/user/login

11、授权

基本流程：

在SpringSecurity中，会使用默认的FilterSecurityInterceptor来进行权限校验。在FilterSecurityInterceptor中会从SecurityContextHolder获取其中的Authentication，然后获取其中的权限信息。当前用户是否拥有访问当前资源所需的权限。

所以我们在项目中只需要把当前登录用户的权限信息也存入Authentication。然后设置我们的资源所需要的权限即可。

SpringSecurity为我们提供了基于注解的权限控制方案，这也是我们项目中主要采用的方式。我们可以使用注解去指定访问对应的资源所需的权限。但是要使用它我们需要先开启相关配置。在SecurityConfig配置类上开启相关配置。

@EnableGlobalMethodSecurity(prePostEnabled = true)

然后就可以使用对应的注解。@PreAuthorize

package com.duan.controller;

import com.duan.pojo.SysUser;
import com.duan.service.SysUserService;
import com.duan.utils.ResponseResult;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;


/**
 * 用户表(SysUser)表控制层
 *
 * @author db
 * @since 2024-09-22 19:49:44
 */
@RestController
@RequestMapping("sysUser")
public class SysUserController {
    /**
     * 服务对象
     */
    @Resource
    private SysUserService sysUserService;

    @GetMapping("/getSysUserList")
    @PreAuthorize("hasAnyAuthority('system:user:list')")
    public ResponseResult getSysUserList(){
        List<SysUser> sysUserList = sysUserService.getSysUserList();
        return ResponseResult.okResult(sysUserList);
    }

}

封装权限信息前面在写UserDetailsServiceImpl的时候说过，在查询出用户后还要获取对应的权限信息，封装到UserDetails中返回。之前定义了UserDetails的实现类LoginUser，想要让其能封装权限信息就要对其进行修改。

package com.duan.pojo;

import com.alibaba.fastjson.annotation.JSONField;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;

/**
 * @author db
 * @version 1.0
 * @description LoginUser
 * @since 2024/9/22
 */
@Data
@NoArgsConstructor
public class LoginUser implements UserDetails {
    private SysUser sysUser;


    private List<String> permissions;

    public LoginUser(SysUser sysUser, List<String> permissions) {
        this.sysUser = sysUser;
        this.permissions = permissions;
    }

    @JSONField(serialize = false)
    private  List<GrantedAuthority> authorities;

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        if(authorities !=null){
            return authorities;
        }
        authorities = permissions.stream().map(SimpleGrantedAuthority::new).collect(Collectors.toList());

        return authorities;
    }

    @Override
    public String getPassword() {
        return sysUser.getPassword();
    }

    @Override
    public String getUsername() {
        return sysUser.getUserName();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}

从数据库中查询权限信息。

# 新建数据表
CREATE TABLE `sys_role` (
  `id` BIGINT(20) NOT NULL AUTO_INCREMENT,
  `name` VARCHAR(128) DEFAULT NULL,
  `create_time` DATETIME DEFAULT NULL,
  `update_time` DATETIME DEFAULT NULL,
  `remark` VARCHAR(500) DEFAULT NULL COMMENT '备注',
  PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8mb4 COMMENT='角色表';



CREATE TABLE `sys_menu` (
  `id` BIGINT(20) NOT NULL AUTO_INCREMENT,
  `menu_name` VARCHAR(64) NOT NULL DEFAULT 'NULL' COMMENT '菜单名',
  `component` VARCHAR(255) DEFAULT NULL COMMENT '组件路径',
  `perms` VARCHAR(100) DEFAULT NULL COMMENT '权限标识',
  `create_time` DATETIME DEFAULT NULL,
  `update_time` DATETIME DEFAULT NULL,
  `remark` VARCHAR(500) DEFAULT NULL COMMENT '备注',
  PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8mb4 COMMENT='菜单表';


CREATE TABLE `sys_role_menu` (
  `role_id` BIGINT(200) NOT NULL AUTO_INCREMENT COMMENT '角色ID',
  `menu_id` BIGINT(200) NOT NULL DEFAULT '0' COMMENT '菜单id',
  PRIMARY KEY (`role_id`,`menu_id`)
) ENGINE=INNODB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8mb4;


CREATE TABLE `sys_user_role` (
  `user_id` BIGINT(200) NOT NULL AUTO_INCREMENT COMMENT '用户id',
  `role_id` BIGINT(200) NOT NULL DEFAULT '0' COMMENT '角色id',
  PRIMARY KEY (`user_id`,`role_id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8mb4;

新建对应的实体类。

package com.duan.pojo;


import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;

/**
 * (SysUserRole)表实体类
 *
 * @author db
 * @since 2024-10-04 22:13:31
 */
@SuppressWarnings("serial")
@Data
@AllArgsConstructor
@NoArgsConstructor
@TableName("sys_user_role")
public class SysUserRole implements Serializable {
    private static final long serialVersionUID = 767991252105621233L;

    //用户id
    @TableField("user_id")
    private Long userId;
    //角色id
    @TableField("role_id")
    private Long roleId;

}

package com.duan.pojo;

import com.baomidou.mybatisplus.annotation.FieldFill;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import com.fasterxml.jackson.annotation.JsonFormat;
import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;
import java.util.Date;

/**
 * 菜单表(SysMenu)表实体类
 *
 * @author db
 * @since 2024-10-04 22:18:43
 */
@SuppressWarnings("serial")
@Data
@AllArgsConstructor
@NoArgsConstructor
@TableName("sys_menu")
public class SysMenu implements Serializable {

    private static final long serialVersionUID = 767991252105621234L;

    @TableId
    private Long id;

    //菜单名
    @TableField("menu_name")
    private String menuName;
    //组件路径
    private String component;

    //权限标识
    private String perms;

    //备注
    private String remark;

    @ApiModelProperty("创建日期")
    @TableField(value = "create_time",fill = FieldFill.INSERT)
    @JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
    private Date createTime;

    @ApiModelProperty("更新日期")
    @TableField(value = "update_time",fill = FieldFill.INSERT_UPDATE)
    @JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
    private Date updateTime;
}

package com.duan.pojo;

import com.baomidou.mybatisplus.annotation.FieldFill;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import com.fasterxml.jackson.annotation.JsonFormat;
import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;
import java.util.Date;

/**
 * 角色表(SysRole)表实体类
 *
 * @author db
 * @since 2024-10-04 21:49:53
 */
@SuppressWarnings("serial")
@Data
@AllArgsConstructor
@NoArgsConstructor
@TableName("sys_role")
public class SysRole implements Serializable {

    private static final long serialVersionUID = 767991252105621232L;
    @TableId
    private Long id;
    
    private String name;

    //备注
    private String remark;
    @ApiModelProperty("创建日期")
    @TableField(value = "update_time",fill = FieldFill.INSERT)
    @JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
    private Date createTime;

    @ApiModelProperty("更新日期")
    @TableField(value = "update_time",fill = FieldFill.INSERT_UPDATE)
    @JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
    private Date updateTime;
}

package com.duan.pojo;


import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;

/**
 * (SysRoleMenu)表实体类
 *
 * @author db
 * @since 2024-10-04 22:26:47
 */
@SuppressWarnings("serial")
@Data
@AllArgsConstructor
@NoArgsConstructor
@TableName("sys_role_menu")
public class SysRoleMenu implements Serializable {
    private static final long serialVersionUID = 767991252105621235L;
    //角色ID
    @TableField("role_id")
    private Long roleId;
    //菜单id
    @TableField("menu_id")
    private Long menuId;
}

先定义个mapper，其中提供一个方法可以根据userid查询权限信息。

package com.duan.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.duan.pojo.SysMenu;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

import java.util.List;


/**
 * 菜单表(SysMenu)表数据库访问层
 *
 * @author db
 * @since 2024-10-04 22:18:42
 */
@Mapper
public interface SysMenuMapper extends BaseMapper<SysMenu> {

    List<String> selectPermsByUserId(@Param("userId") Long userId);

}

尤其是自定义方法，所以需要创建对应的mapper文件，定义对应的sql语句。

<?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.duan.mapper.SysMenuMapper">
    <select id="selectPermsByUserId" resultType="java.lang.String">

SELECT
	DISTINCT m.`perms`
FROM
	sys_user_role ur
	LEFT JOIN `sys_role` r ON ur.`role_id` = r.`id`
	LEFT JOIN `sys_role_menu` rm ON ur.`role_id` = rm.`role_id`
	LEFT JOIN `sys_menu` m ON m.`id` = rm.`menu_id`
WHERE
	user_id = #{userId}

    </select>
</mapper>

然后可以在UserDetailsServiceImpl中去调用该mapper的方法查询权限信息封装到LoginUser对象中即可。

package com.duan.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.duan.exception.SpringSecurityException;
import com.duan.mapper.SysMenuMapper;
import com.duan.mapper.SysUserMapper;
import com.duan.pojo.LoginUser;
import com.duan.pojo.SysUser;
import com.duan.utils.AppHttpCodeEnum;
import org.springframework.beans.factory.annotation.Autowired;
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.List;

/**
 * @author db
 * @version 1.0
 * @description UserDetailsServiceImpl
 * @since 2024/9/22
 */
@Service
public class UserDetailsServiceImpl implements UserDetailsService {
    @Autowired
    private SysUserMapper sysUserMapper;

    @Autowired
    private SysMenuMapper sysMenuMapper;

    @Override
    public UserDetails loadUserByUsername(String username) {
        LambdaQueryWrapper<SysUser> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(SysUser::getUserName,username);
        SysUser sysUser = sysUserMapper.selectOne(queryWrapper);
        if(sysUser == null){
            throw new SpringSecurityException(AppHttpCodeEnum.LOGIN_ERROR.getCode(),AppHttpCodeEnum.LOGIN_ERROR.getMsg());
        }
        //根据用户查询权限信息 添加到LoginUser中
        List<String> perms = sysMenuMapper.selectPermsByUserId(sysUser.getId());
        //封装成UserDetails对象返回
        return new LoginUser(sysUser,perms);
    }
}

修改自定义的认证过滤器，将获得的用户权限封装Authentication对象，存入SecurityContextHolder。

package com.duan.filter;

import com.duan.config.RedisCache;
import com.duan.pojo.LoginUser;
import com.duan.utils.JwtUtil;
import io.jsonwebtoken.Claims;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.filter.OncePerRequestFilter;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Objects;

/**
 * @author db
 * @version 1.0
 * @description JwtAuthenticationTokenFilter
 * @since 2024/9/24
 */
@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {
    @Autowired
    private RedisCache redisCache;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
        //获取token
        String token = request.getHeader("token");
        if (!StringUtils.hasText(token)) {
            //放行
            filterChain.doFilter(request, response);
            return;
        }
        //解析token
        String userid;
        try {
            Claims claims = JwtUtil.parseJWT(token);
            userid = claims.getSubject();
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException("token非法");
        }
        //从redis中获取用户信息
        String redisKey = "login:" + userid;
        LoginUser loginUser = redisCache.getCacheObject(redisKey);
        if(Objects.isNull(loginUser)){
            throw new RuntimeException("用户未登录");
        }
        //存入SecurityContextHolder
        // 获取权限信息封装到Authentication中
        UsernamePasswordAuthenticationToken authenticationToken =
                new UsernamePasswordAuthenticationToken(loginUser,null,loginUser.getAuthorities());
        SecurityContextHolder.getContext().setAuthentication(authenticationToken);
        //放行
        filterChain.doFilter(request, response);
    }
}
12、跨域

浏览器出于安全的考虑，使用 XMLHttpRequest对象发起 HTTP请求时必须遵守同源策略，否则就是跨域的HTTP请求，默认情况下是被禁止的。 同源策略要求源相同才能正常进行通信，即协议、域名、端口号都完全一致。

前后端分离项目，前端项目和后端项目一般都不是同源的，所以肯定会存在跨域请求的问题。所以我们就要处理一下，让前端能进行跨域请求。

①先对SpringBoot配置，运行跨域请求。

package com.duan.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/**
 * @author db
 * @version 1.0
 * @description CorsConfig
 * @since 2024/10/8
 */
@Configuration
public class CorsConfig implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        // 设置允许跨域的路径
        registry.addMapping("/**")
                // 设置允许跨域请求的域名
                .allowedOriginPatterns("*")
                // 是否允许cookie
                .allowCredentials(true)
                // 设置允许的请求方式
                .allowedMethods("GET", "POST", "DELETE", "PUT")
                // 设置允许的header属性
                .allowedHeaders("*")
                // 跨域允许时间
                .maxAge(3600);
    }
}

②开启SpringSecurity的跨域访问由于我们的资源都会收到SpringSecurity的保护，所以想要跨域访问还要让SpringSecurity运行跨域访问。

package com.duan.config;

import com.duan.filter.JwtAuthenticationTokenFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

/**
 * @author db
 * @version 1.0
 * @description SecurityConfig
 * @since 2024/9/22
 */
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;


    @Bean
    public PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                //关闭csrf
                .csrf().disable()
                //不通过Session获取SecurityContext
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                // 对于登录接口 允许匿名访问
                .antMatchers("/user/login").anonymous()
                // 除上面外的所有请求全部需要鉴权认证
                .anyRequest().authenticated();

        //把token校验过滤器添加到过滤器链中
        http.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter .class);

        //允许跨域
        http.cors();

    }


    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
}
13、授权测试

先使用用户程序员康康登录，获得token，然后去访问用户列表接口，请求值携带token值，可以看到能访问到该接口。

再使用用户张三登录，获得token，然后去访问用户列表接口，请求值携带token值，可以看到不能访问该接口，没有权限。

14、自定义权限校验方法

我们还可以自定义权限校验方法，在PreAuthorize注解中使用我们的方法。

package com.duan.filter;

import com.duan.pojo.LoginUser;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.stereotype.Component;

import java.util.List;

/**
 * @author db
 * @version 1.0
 * @description PermissionService
 * @since 2024/11/6
 */
@Component("ss")
public class PermissionService {
    public boolean hasAuthority(String authority){
        //获取当前用户的权限
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        LoginUser loginUser = (LoginUser) authentication.getPrincipal();
        List<String> permissions = loginUser.getPermissions();
        //判断用户权限集合中是否存在authority
        return permissions.contains(authority);
    }
}

在SPEL表达式中使用 @ss相当于获取容器中Bean的名字ss的对象。然后再调用这个对象的hasAuthority方法。

package com.duan.controller;



import com.duan.pojo.SysUser;
import com.duan.service.SysUserService;
import com.duan.utils.ResponseResult;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;


/**
 * 用户表(SysUser)表控制层
 *
 * @author db
 * @since 2024-09-22 19:49:44
 */
@RestController
@RequestMapping("sysUser")
public class SysUserController {
    /**
     * 服务对象
     */
    @Resource
    private SysUserService sysUserService;

    @GetMapping("/getSysUserList")
    @PreAuthorize("hasAnyAuthority('system:user:list')")
    public ResponseResult getSysUserList(){
        List<SysUser> sysUserList = sysUserService.getSysUserList();
        return ResponseResult.okResult(sysUserList);
    }

    @GetMapping("/getSysUserListSS")
    @PreAuthorize("@ss.hasAuthority('system:user:list')")
    public ResponseResult getSysUserListSS(){
        List<SysUser> sysUserList = sysUserService.getSysUserList();
        return ResponseResult.okResult(sysUserList);
    }

}

使用用户张三登录，获得token，然后去访问用户列表接口getSysUserListSS，请求值携带token值，可以看到不能访问该接口，没有权限。

代码地址： https://gitee.com/duan138/practice-code/tree/dev/SpringBoot-SpringSecurity

三、总结

前面几篇文章学习Spring security认证和授权理论知识，本文通过实际案例去整合Spring Security进行认证和授权，进行数据库级别的RBAC鉴权操作，引入JWT和Redis进行Token认证，本案例可以在实际项目中使用。

改变你能改变的，接受你不能改变的，关注公众号：程序员康康，一起成长，共同进步。


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