SpringBoot整合Redis实现登录失败锁定功能(实例详解)

 <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
<dependency>
            <groupId>com.mysql</groupId>
            <artifactId>mysql-connector-j</artifactId>
            <version>8.0.31</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.3</version>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.24</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.28</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <version>2.5.9</version>
        </dependency>

# 数据库驱动：
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
# 数据库连接地址
spring.datasource.url=jdbc:mysql://localhost:3306/数据库?serverTimezone=UTC
# 数据库用户名&密码：
spring.datasource.username=用户名
spring.datasource.password=密码
spring.main.allow-circular-references=true
# redis地址
spring.redis.host=localhost
spring.redis.port=6379

@TableName(value ="phone")
@AllArgsConstructor
@NoArgsConstructor
@Data
public class Phone implements Serializable {
    /**
     * 
     */
    @TableId(type = IdType.AUTO)
    private Integer id;
    /**
     * 
     */
    private String number;
    /**
     * 
     */
    private String password;

//    记录登录失败次数 登录失败次数大于5次 限制登录一分钟
    @RequestMapping("relogin")
    public String relogin(String number,String password) {
        String key = "login:";
        String loginkey="fail"+number;
        LambdaQueryWrapper<Phone> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Phone::getNumber,number);
        queryWrapper.eq(Phone::getPassword,password);
        Phone phones = phoneService.getOne(queryWrapper);
        if (phones!=null){
            redisTemplate.delete(key);
            redisTemplate.delete(loginkey);
            return "登陆成功";
        }
        redisTemplate.opsForValue().increment(key);
        redisTemplate.expire(key,1,TimeUnit.MINUTES);
        redisTemplate.opsForValue().set(loginkey, String.valueOf(System.currentTimeMillis()),1,TimeUnit.MINUTES);
        String loginNumStr = redisTemplate.opsForValue().get(key);
        Integer loginNum = (loginNumStr != null) ? Integer.parseInt(loginNumStr) : 0;
        if (loginNum != null && loginNum >= 5) {
            long localtime = System.currentTimeMillis();
            long failtime = Long.parseLong(redisTemplate.opsForValue().get(loginkey));
            long time = localtime - failtime;
            if(time<60000){
                return "您的登录失败次数已经至少5次,请一分钟后重试";
            }
        }
        return "登陆失败";
    }