介绍

之前使用的全是基于内存的认证，这里使用基于数据库的认证。

设计数据表

这里设计数据表

创建项目

这里使用 Mybatis 作为项目。

添加如下依赖

添加 driud 连接池依赖

        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.9</version>
        </dependency>

完整的 pom 如下

<?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>2.3.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.9</version>
        </dependency>
        <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>2.1.3</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>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

配置数据库

spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    username: root
    password: ABCcba20170607
    url: jdbc:mysql://cdb-1yfd1mlm.cd.tencentcdb.com:10056/test

创建对应的实体类

package com.example.demo.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;


    @Override
    // 实体类和 SpringSecurity 转换
    public Collection<? extends GrantedAuthority> getAuthorities() {List<SimpleGrantedAuthority> authorities = new ArrayList<>();
        for (Role role : roles) {authorities.add(new SimpleGrantedAuthority(role.getName()));
        }
        return authorities;
    }

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

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

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

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

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

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

    public Integer getId() {return id;}

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

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

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

    public Boolean getEnabled() {return enabled;}

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

    public Boolean getLocked() {return locked;}

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

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

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

package com.example.demo.domain;

public class Role {
    private Integer id;
    private String name;
    private String nameZh;

    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 getNameZh() {return nameZh;}

    public void setNameZh(String nameZh) {this.nameZh = nameZh;}
}

创建 UserService

package com.example.demo.mapper;

import com.example.demo.domain.Role;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import org.graalvm.compiler.nodeinfo.StructuralInput;
import org.springframework.security.core.userdetails.User;

import java.util.List;

@Mapper
public interface UserMapper {@Select("select * from user where username=#{username}")
    public User loadUserByUsername(String username);

    @Select("select * from role r, user_role ur where r.id = ur.rid and ur.uid = #{id}")
    public List<Role> getUserRoleByUid(Integer id);
}

配置 Spring Security

package com.example.demo.config;

import com.example.demo.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Configurable;
import org.springframework.context.annotation.Bean;
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;
import org.springframework.security.crypto.password.PasswordEncoder;


@Configurable
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    private UserService userService;

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

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {auth.userDetailsService(userService);
    }

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

至此完成。

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