本文主要是介绍SpringSecurity系列之查询数据库认证，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！

上篇:Spring Security系列之基本原理

一、整合mybatis plus 完成数据库操作

项目工程结构如下：

1、引入pom文件依赖

<!--mybatis-plus-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.0.5</version>
        </dependency>
        <!--mysql-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!--lombok用来简化实体类-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

完整的pom文件配置

<?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>2.5.5</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>org.apache.security</groupId>
    <artifactId>springsecuritydemo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springsecuritydemo</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-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </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>


        <!--mybatis-plus-->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.0.5</version>
        </dependency>
        <!--mysql-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!--lombok用来简化实体类-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

    </dependencies>


</project>

2、创建数据库与数据表

CREATE TABLE `user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(255) DEFAULT NULL,
  `password` varchar(255) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8

3、创建bean

package org.apache.entity;

import lombok.Data;

@Data
public class Users {
    private Integer id;
    private String username;
    private String password;
}

4、创建mapper接口

package org.apache.mapper;


import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.entity.Users;
import org.springframework.stereotype.Repository;

@Repository
public interface UsersMapper extends BaseMapper<Users> {
}

实现它的接口方法

package org.apache.service;


import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import org.apache.entity.Users;
import org.apache.mapper.UsersMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.AuthorityUtils;
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.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Service;

import java.util.List;

@Service("userDetailsService")
public class MyUserDetailsService implements UserDetailsService {

    @Autowired
    private UsersMapper usersMapper;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //调用usersMapper方法，根据用户名查询数据库
        QueryWrapper<Users> wrapper = new QueryWrapper();
        // where username=?
        wrapper.eq("username",username);
        Users users = usersMapper.selectOne(wrapper);
        //判断
        if(users == null) {//数据库没有用户名，认证失败
            throw  new UsernameNotFoundException("用户名不存在！");
        }
        List<GrantedAuthority> auths =
                AuthorityUtils.commaSeparatedStringToAuthorityList("admin,ROLE_sale");
        //从查询数据库返回users对象，得到用户名和密码，返回
        return new User(users.getUsername(),
                new BCryptPasswordEncoder().encode(users.getPassword()),auths);
    }
}

5、配置数据源

server.port=8111

#mysql数据库连接
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/security?serverTimezone=GMT%2B8
spring.datasource.username=root
spring.datasource.password=123456

6、编写controller类

package org.apache.controller;

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


@RestController
@RequestMapping("/test")
public class TestController {

    @GetMapping("hello")
    public String hello() {
        return "hello security";
    }

}

7、启动类

package org.apache;

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

@SpringBootApplication
@MapperScan("org.apache.mapper")
public class SpringsecuritydemoApplication {

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

}

8、配置类

package org.apache.config;

import org.springframework.context.annotation.Bean;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        String password = passwordEncoder.encode("123456");
        auth.inMemoryAuthentication().withUser("admin").password(password).roles("admin");
    }

    @Bean
    PasswordEncoder password() {
        return new BCryptPasswordEncoder();
    }
}

9、拦截器

package org.apache.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.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.rememberme.JdbcTokenRepositoryImpl;
import org.springframework.security.web.authentication.rememberme.PersistentTokenRepository;

import javax.sql.DataSource;

@Configuration
public class SecurityConfigTest extends WebSecurityConfigurerAdapter {
    @Autowired
    private UserDetailsService userDetailsService;
    //注入数据源
    @Autowired
    private DataSource dataSource;
    //配置对象
    @Bean
    public PersistentTokenRepository persistentTokenRepository() {
        JdbcTokenRepositoryImpl jdbcTokenRepository = new JdbcTokenRepositoryImpl();
        jdbcTokenRepository.setDataSource(dataSource);
        //jdbcTokenRepository.setCreateTableOnStartup(true);
        return jdbcTokenRepository;
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(password());
    }
    @Bean
    PasswordEncoder password() {
        return new BCryptPasswordEncoder();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        //退出
        http.logout().logoutUrl("/logout").
                logoutSuccessUrl("/test/hello").permitAll();

        //配置没有权限访问跳转自定义页面
        http.exceptionHandling().accessDeniedPage("/unauth.html");
        http.formLogin()   //自定义自己编写的登录页面
            .loginPage("/on.html")  //登录页面设置
            .loginProcessingUrl("/user/login")   //登录访问路径
            .defaultSuccessUrl("/success.html").permitAll()  //登录成功之后，跳转路径
                .failureUrl("/unauth.html")
            .and().authorizeRequests()
                .antMatchers("/","/test/hello","/user/login").permitAll() //设置哪些路径可以直接访问，不需要认证
                //当前登录用户，只有具有admins权限才可以访问这个路径
                //1 hasAuthority方法
               // .antMatchers("/test/index").hasAuthority("admins")
                //2 hasAnyAuthority方法
               // .antMatchers("/test/index").hasAnyAuthority("admins,manager")
                //3 hasRole方法   ROLE_sale
                .antMatchers("/test/index").hasRole("sale")

                .anyRequest().authenticated()
                .and().rememberMe().tokenRepository(persistentTokenRepository())
                .tokenValiditySeconds(60)//设置有效时长，单位秒
                .userDetailsService(userDetailsService);
               // .and().csrf().csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse());
          // .and().csrf().disable();  //关闭csrf防护
    }
}

启动主程序

10、测试

http://localhost:8111/test/hello?username=user1&password=123456

http://localhost:8111/test/hello?username=admin&password=123456

这是数据表的用户名与密码都可以，说明测试ok

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