Springboot redis bitMap实现用户签到以及统计，保姆级教程

项目架构，这是作为demo展示使用：
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Redis config：

package com.zy.config;import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;/*** @Author: zy* @Date: 2025-03-08-13:22* @Description:*/
@Configuration
public class RedisConfig {/*** RedisTemplate配置*/@Beanpublic RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();template.setConnectionFactory(factory);Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);ObjectMapper om = new ObjectMapper();om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);jackson2JsonRedisSerializer.setObjectMapper(om);StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();// key采用String的序列化方式template.setKeySerializer(stringRedisSerializer);// hash的key也采用String的序列化方式template.setHashKeySerializer(stringRedisSerializer);// value序列化方式采用jacksontemplate.setValueSerializer(jackson2JsonRedisSerializer);// hash的value序列化方式采用jacksontemplate.setHashValueSerializer(jackson2JsonRedisSerializer);template.afterPropertiesSet();return template;}
}

Controller：

package com.zy.controller;import com.zy.config.RedisConstants;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.YearMonth;
import java.time.format.DateTimeFormatter;
import java.util.Optional;/*** @Author: zy* @Date: 2025-03-08-12:43* @Description:*/
@RestController
@Slf4j
@RequestMapping("/user")
public class SignController {@Autowiredprivate RedisTemplate redisTemplate;@PostMapping("/sign")public Boolean sign() {try {//1. 获取登录用户//Long userId = SSOThreadHolder.getUserAndCheck().getUserId();Long userId = 1001012345L;//2. 获取日期LocalDateTime now = LocalDateTime.now();for (int i = 0; i < 100; i++) {LocalDate date = LocalDateTime.now().minusDays(i).toLocalDate();String format = date.format(DateTimeFormatter.ofPattern(":yyyyMM"));//3. 拼接keyString keySuffix = format;String key = RedisConstants.USER_SIGN_KEY + userId + keySuffix;log.info("redis key:" + key);//4. 获取今天是本月的第几天int dayOfMonth = date.getDayOfMonth();//5. 写入redis setbit key offset 1System.out.println("dayOfMonth:" + dayOfMonth);Boolean aBoolean = redisTemplate.opsForValue().setBit(key, dayOfMonth - 1, true);System.out.println("aboolean:" + aBoolean);}} catch (Exception e) {e.printStackTrace();log.error(e.getMessage());}return true;}@GetMapping("/signCount")public String signCount() {long l = countSignInDays("sign:1001012345:202503");System.out.println("l:" + l);return String.valueOf(l);}/*** 统计当前月的签到总数** @param key Redis键* @return 签到总数*/public long countSignInDays(String key) {key = "sign:1001012345:202503";// 获取当前月的总天数YearMonth currentYearMonth = YearMonth.now();int daysInMonth = currentYearMonth.lengthOfMonth();// 使用 execute 方法执行 BITCOUNT 命令String finalKey = key;Long bitCount = (Long) redisTemplate.execute((RedisConnection connection) -> {// 检查键是否存在if (!connection.exists(finalKey.getBytes())) {return 0L;}// 执行 BITCOUNT 命令，统计指定范围内的 1 的数量return connection.bitCount(finalKey.getBytes(), 0, daysInMonth - 1);});return Optional.ofNullable(bitCount).orElse(0L);}}

yml文件：

server:port: 8090spring:#redis哨兵配置redis:sentinel:master: mymasternodes: # 我这里使用的是哨兵模式，不影响，根据你自己的来，但是如果没有，为啥不搭建一下，自己使用呢- localhost:26379- localhost:26380- localhost:26381password: 你的密码password: 你的密码

接口测试：
签到接口，在代码中模拟了100天的签到
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