security基于数据库的认证(二)

本文主要是介绍security基于数据库的认证(二)，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！

@TOC
前言：在security初体验（一）里，用户名和密码的认证都是基于内存级别的，本章主要是说security如何从db里取用户名和密码来验证的。

1.准备的sql

DROP TABLE IF EXISTS `user`;
CREATE TABLE `user`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,
  `password` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,
  `enabled` tinyint(1) NULL DEFAULT NULL,
  `locked` tinyint(1) NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 4 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;

INSERT INTO `user` VALUES (1, 'root', '$2a$10$O8G0X/sUPAA76MV7U3BwY.3Uo8/QMBcqK678Rwkoz.fowbce.CLtO', 1, 0);
INSERT INTO `user` VALUES (2, 'admin', '$2a$10$O8G0X/sUPAA76MV7U3BwY.3Uo8/QMBcqK678Rwkoz.fowbce.CLtO', 1, 0);
INSERT INTO `user` VALUES (3, 'tom', '$2a$10$O8G0X/sUPAA76MV7U3BwY.3Uo8/QMBcqK678Rwkoz.fowbce.CLtO', 1, 0);

DROP TABLE IF EXISTS `role`;
CREATE TABLE `role`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,
  `description` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 4 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;

INSERT INTO `role` VALUES (1, 'db', '数据库管理员');
INSERT INTO `role` VALUES (2, 'admin', '系统管理员');
INSERT INTO `role` VALUES (3, 'user', '用户');

DROP TABLE IF EXISTS `user_role_ref`;
CREATE TABLE `user_role_ref`  (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` int(11) NULL DEFAULT NULL,
  `role_id` int(11) NULL DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 5 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;

INSERT INTO `user_role_ref` VALUES (1, 1, 1);
INSERT INTO `user_role_ref` VALUES (2, 1, 2);
INSERT INTO `user_role_ref` VALUES (3, 2, 2);
INSERT INTO `user_role_ref` VALUES (4, 3, 3);

2.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 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>2.6.4</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.yl</groupId>
    <artifactId>security-db</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>security-db</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</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.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.10</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
            <resource>
                <directory>src/min/resources</directory>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

3.application.properties

spring.datasource.url=jdbc:mysql://localhost:3306/demo?useUnicode=true&characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.username=root
spring.datasource.password=root

4.securityconfig

package com.yl.securitydb.config;

import com.yl.securitydb.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.access.hierarchicalroles.RoleHierarchy;
import org.springframework.security.access.hierarchicalroles.RoleHierarchyImpl;
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.crypto.bcrypt.BCryptPasswordEncoder;

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    UserService userService;

    @Bean
    BCryptPasswordEncoder bCryptPasswordEncoder() {
        return new BCryptPasswordEncoder();
    }

    // 配置角色继承关系，即dba角色拥有admin角色的权限，而admin角色拥有user角色的权限，所以dba角色也拥有了user角色的权限
//    @Bean
//    RoleHierarchy roleHierarchy() {
//        RoleHierarchyImpl roleHierarchy = new RoleHierarchyImpl();
//        String hierarchy = "ROLE_db > ROLE_admin \n ROLE_admin > ROLE_user";
//        roleHierarchy.setHierarchy(hierarchy);
//        return roleHierarchy;
//    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        // 基于数据库的用户名和密码认证
        auth.userDetailsService(userService);
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .antMatchers("/db/**").hasRole("db")
                .antMatchers("/admin/**").hasRole("admin")
                .antMatchers("/user/**").hasRole("user")
                .anyRequest().authenticated()
                .and()
                .formLogin()
                .permitAll()
                .and()
                .csrf().disable();
    }
}

5.实体类

package com.yl.securitydb.domain;

import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

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

public class User implements UserDetails {
    private Integer id;
    private String username;
    private String password;
    private Boolean enabled;
    private Boolean locked;
    private List<Role> roles;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        List<SimpleGrantedAuthority> list = new ArrayList<>();
        for (Role role : roles) {
            list.add(new SimpleGrantedAuthority("ROLE_" + role.getName()));
        }
        return list;
    }

    @Override
    public String getPassword() {
        return password;
    }

    @Override
    public String getUsername() {
        return username;
    }

    // 账户是否未过期
    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    // 账户是否未锁定
    @Override
    public boolean isAccountNonLocked() {
        return !locked;
    }

    // 凭证是否未过期
    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

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

    public void setPassword(String password) {
        this.password = password;
    }

    public void setEnabled(Boolean enabled) {
        this.enabled = enabled;
    }

    public void setLocked(Boolean locked) {
        this.locked = locked;
    }

    public List<Role> getRoles() {
        return roles;
    }

    public void setRoles(List<Role> roles) {
        this.roles = roles;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", password='" + password + '\'' +
                ", enabled=" + enabled +
                ", locked=" + locked +
                '}';
    }
}

package com.yl.securitydb.domain;

import java.io.Serializable;

public class Role implements Serializable {
    private Integer id;
    private String name;
    private String description;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    @Override
    public String toString() {
        return "Role{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", description='" + description + '\'' +
                '}';
    }
}

package com.yl.securitydb.domain;

import java.io.Serializable;

public class UserRoleRef implements Serializable {
    private Integer id;
    private Integer userId;
    private Integer roleId;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public Integer getUserId() {
        return userId;
    }

    public void setUserId(Integer userId) {
        this.userId = userId;
    }

    public Integer getRoleId() {
        return roleId;
    }

    public void setRoleId(Integer roleId) {
        this.roleId = roleId;
    }

    @Override
    public String toString() {
        return "UserRoleRef{" +
                "id=" + id +
                ", userId=" + userId +
                ", roleId=" + roleId +
                '}';
    }
}

6.mapper

package com.yl.securitydb.mapper;

import com.yl.securitydb.domain.Role;
import com.yl.securitydb.domain.User;
import org.apache.ibatis.annotations.Mapper;

import java.util.List;

@Mapper
public interface UserMapper {
    User loadUserByUsername(String username);

    List<Role> getRolesByUserId(Integer userId);
}

7.mapper.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="com.yl.securitydb.mapper.UserMapper">

    <select id="loadUserByUsername" resultType="com.yl.securitydb.domain.User">
        select * from user where username = #{username}
    </select>
    <select id="getRolesByUserId" resultType="com.yl.securitydb.domain.Role">
        select * from role where id in (select role_id from user_role_ref where user_id = #{userId})
    </select>

</mapper>

8.service

package com.yl.securitydb.service;

import com.yl.securitydb.domain.User;
import com.yl.securitydb.mapper.UserMapper;
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;

@Service
public class UserService implements UserDetailsService {
    @Autowired
    UserMapper userMapper;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        User user = userMapper.loadUserByUsername(username);
        if (user == null) {
            throw new UsernameNotFoundException("用户名不存在");
        }
        user.setRoles(userMapper.getRolesByUserId(user.getId()));
        return user;
    }
}

9.controller

package com.yl.securitydb.controller;

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

@RestController
public class HelloController {
    @GetMapping("/hello")
    public String hello() {
        return "hello security";
    }

    @GetMapping("/admin/hello")
    public String admin() {
        return "hello admin";
    }
    @GetMapping("/db/hello")
    public String db() {
        return "hello db";
    }
    @GetMapping("/user/hello")
    public String user() {
        return "hello user";
    }
}