SpringSecurity实现数据库认证

约定不等于承诺〃 2023-06-19 09:43 18阅读 0赞

上篇文章我们介绍了SpringSecurity系统认证的流程，我们发现系统认证其实是通过一个UserDetailService的实现类来实现的，所以我们就可以使用相同的方式将认证的业务改成和数据库的对比。此案例持久层我们通过Mybatis来实现

# 一、mybatis准备 #

## 1.导入相关依赖 ##

<dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.5.3</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>2.0.3</version>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.43</version>
    </dependency>
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>1.1.10</version>
    </dependency>

## 2.配置文件 ##

db.properties

#mysql\u6570\u636E\u5E93\u8FDE\u63A5
    jdbc.driver=com.mysql.jdbc.Driver
    jdbc.url=jdbc:mysql://localhost:3306/srm?characterEncoding=utf-8
    jdbc.username=root
    jdbc.password=123456

Mybatis的配置文件

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
    <configuration>
        
    </configuration>

和spring的整合文件

<context:property-placeholder location="classpath:db.properties" />
    
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close">
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <property name="driverClassName" value="${jdbc.driver}" />
        <property name="maxActive" value="10" />
        <property name="minIdle" value="5" />
    </bean>
    
    
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        
        <property name="dataSource" ref="dataSource" />
        
        <property name="configLocation" value="classpath:mybatis-config.xml" />
        
        <property name="mapperLocations" value="classpath*:mapper/*.xml"/>
    </bean>
    
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.dpb.security.dao" />
    </bean>

## 3.pojo文件 ##

package com.dpb.security;
    
    /** * @program: springboot-52-security * @description: 用户 * @author: 波波烤鸭 * @create: 2019-12-01 22:26 */
    public class UserPojo{ 
        private Integer  id;
    
        private String username;
    
        private String password;
    
        private String salt;
    
        private String nickname;
    
        public Integer getId() { 
            return id;
        }
    
        public void setId(Integer id) { 
            this.id = id;
        }
    
        public String getUsername() { 
            return username;
        }
    
        public void setUsername(String username) { 
            this.username = username;
        }
    
        public String getPassword() { 
            return password;
        }
    
        public void setPassword(String password) { 
            this.password = password;
        }
    
        public String getSalt() { 
            return salt;
        }
    
        public void setSalt(String salt) { 
            this.salt = salt;
        }
    
        public String getNickname() { 
            return nickname;
        }
    
        public void setNickname(String nickname) { 
            this.nickname = nickname;
        }
    }

## 4.dao接口 ##

定义一个根据账号查询的方法即可  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70]

## 5.映射文件 ##

<?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.dpb.security.dao.UserDao">
        <select id="queryByUserName" resultType="com.dpb.security.pojo.UserPojo">
            select * from t_user where username = #{userName}
        </select>
    </mapper>

## 6.service ##

接口定义  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 1]  
接口实现  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 2]

# 二、service修改 #

接下来我们看看如何将SpringSecurity引入进来

## 1.UserService 继承 UserDetailService接口 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 3]

## 2.重写loadUserByusername方法 ##

/** * 根据账号查询 * @param s 登录表单输入的账号 * @return * @throws UsernameNotFoundException */
        @Override
        public UserDetails loadUserByUsername(String s) throws UsernameNotFoundException { 
            // 根据账号去数据库中查询
            UserPojo userPojo = this.queryByUserName(s);
            if(userPojo != null){ 
                List<SimpleGrantedAuthority> authorities = new ArrayList<>();
                // 设置登录账号的角色
                authorities.add(new SimpleGrantedAuthority("ROLE_USER"));
                UserDetails user = new User(userPojo.getUsername(),"{noop}"+userPojo.getPassword(),authorities);
                return user;
            }
            // 返回null 默认表示账号不存在
            return null;
        }
    }

# 三、配置文件修改 #

既然使用自定义的认证方法，那么原来设置的内存中的账号就不需要了  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 4]

# 四、登录测试 #

启动系统，登录测试即可  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 5]  
搞定~

# 五、加密处理 #

显然在实际项目中，对密码加密是必须的，所以我们就来看看SpringSecurity中是怎么做加密的。我们在此处通过BCryptPasswordEncoder来加密，动态加盐的方式

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 6]  
配置文件中设置加密规则  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 7]  
去掉\{noop\}  
![在这里插入图片描述][20191205162354928.png]  
修改数据库中对应的密码  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 8]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 9]

# 六、认证状态判断 #

我们在实际项目中因为用户的不同操作，可能会给出不同的状态，比如正常，冻结等，SpringSecurity也支持，我们来看下，如何实现。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 10]  
然后我们在认证的时候使用User对象的另一个构造器就可以了  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 11]

<table> 
 <thead> 
  <tr> 
   <th>参数</th> 
   <th align="left">说明</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>boolean enabled</td> 
   <td align="left">是否可用</td> 
  </tr> 
  <tr> 
   <td>boolean accountNonExpired</td> 
   <td align="left">账号是否失效</td> 
  </tr> 
  <tr> 
   <td>boolean credentialsNonExpired</td> 
   <td align="left">秘钥是否失效</td> 
  </tr> 
  <tr> 
   <td>boolean accountNonLocked</td> 
   <td align="left">账号是否锁定</td> 
  </tr> 
 </tbody> 
</table>

如此设置即可

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9kcGItYm9ib2thb3lhLXNtLmJsb2cuY3Nkbi5uZXQ_size_16_color_FFFFFF_t_70 12]

然后状态(status)为0的记录就没法正常登陆咯~

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