这篇文章给大家分享的是有关Spring Boot如何解决Redis缓存+MySQL批量入库问题的内容。小编觉得挺实用的,因此分享给大家做个参考,一起跟随小编过来看看吧。
架构图:
时序图
记录基础数据MySQL表结构
CREATE TABLE `zh_article_count` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `bu_no` varchar(32) DEFAULT NULL COMMENT '业务编码', `customer_id` varchar(32) DEFAULT NULL COMMENT '用户编码', `type` int(2) DEFAULT '0' COMMENT '统计类型:0APP内文章阅读', `article_no` varchar(32) DEFAULT NULL COMMENT '文章编码', `read_time` datetime DEFAULT NULL COMMENT '阅读时间', `create_time` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间', `update_time` datetime DEFAULT CURRENT_TIMESTAMP COMMENT '更新时间', `param1` int(2) DEFAULT NULL COMMENT '预留字段1', `param2` int(4) DEFAULT NULL COMMENT '预留字段2', `param3` int(11) DEFAULT NULL COMMENT '预留字段3', `param4` varchar(20) DEFAULT NULL COMMENT '预留字段4', `param5` varchar(32) DEFAULT NULL COMMENT '预留字段5', `param6` varchar(64) DEFAULT NULL COMMENT '预留字段6', PRIMARY KEY (`id`) USING BTREE, UNIQUE KEY `uk_zh_article_count_buno` (`bu_no`), KEY `key_zh_article_count_csign` (`customer_id`), KEY `key_zh_article_count_ano` (`article_no`), KEY `key_zh_article_count_rtime` (`read_time`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='文章阅读统计表';
技术实现方案
SpringBoot
Redis
MySQL
完整代码(GitHub,欢迎大家Star,Fork,Watch)
https://github.com/dangnianchuntian/springboot
主要代码展示
Controller
/* * Copyright (c) 2020. zhanghan_java@163.com All Rights Reserved. * 项目名称:Spring Boot实战解决高并发数据入库: Redis 缓存+MySQL 批量入库 * 类名称:ArticleCountController.java * 创建人:张晗 * 联系方式:zhanghan_java@163.com * 开源地址: https://github.com/dangnianchuntian/springboot * 博客地址: https://zhanghan.blog.csdn.net */ package com.zhanghan.zhredistodb.controller; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.validation.annotation.Validated; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; import com.zhanghan.zhredistodb.controller.request.PostArticleViewsRequest; import com.zhanghan.zhredistodb.service.ArticleCountService; @RestController public class ArticleCountController { @Autowired private ArticleCountService articleCountService; /** * 记录用户访问记录 */ @RequestMapping(value = "/post/article/views", method = RequestMethod.POST) public Object postArticleViews(@RequestBody @Validated PostArticleViewsRequest postArticleViewsRequest) { return articleCountService.postArticleViews(postArticleViewsRequest); } /** * 批量将缓存中的数据同步到MySQL(模拟定时任务操作) */ @RequestMapping(value = "/post/batch", method = RequestMethod.POST) public Object postBatch() { return articleCountService.postBatchRedisToDb(); }
Service
/* * Copyright (c) 2020. zhanghan_java@163.com All Rights Reserved. * 项目名称:Spring Boot实战解决高并发数据入库: Redis 缓存+MySQL 批量入库 * 类名称:ArticleCountServiceImpl.java * 创建人:张晗 * 联系方式:zhanghan_java@163.com * 开源地址: https://github.com/dangnianchuntian/springboot * 博客地址: https://zhanghan.blog.csdn.net */ package com.zhanghan.zhredistodb.service.impl; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.stream.Collectors; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.stereotype.Service; import org.springframework.util.CollectionUtils; import com.alibaba.fastjson.JSON; import com.zhanghan.zhredistodb.controller.request.PostArticleViewsRequest; import com.zhanghan.zhredistodb.dto.ArticleCountDto; import com.zhanghan.zhredistodb.mybatis.mapper.XArticleCountMapper; import com.zhanghan.zhredistodb.service.ArticleCountService; import com.zhanghan.zhredistodb.util.wrapper.WrapMapper; import cn.hutool.core.util.IdUtil; @Service public class ArticleCountServiceImpl implements ArticleCountService { private static Logger logger = LoggerFactory.getLogger(ArticleCountServiceImpl.class); @Autowired private RedisTemplate<String, String> strRedisTemplate; private XArticleCountMapper xArticleCountMapper; @Value("${zh.article.count.redis.key:zh}") private String zhArticleCountRedisKey; @Value("#{T(java.lang.Integer).parseInt('${zh..article.read.num:3}')}") private Integer articleReadNum; /** * 记录用户访问记录 */ @Override public Object postArticleViews(PostArticleViewsRequest postArticleViewsRequest) { ArticleCountDto articleCountDto = new ArticleCountDto(); articleCountDto.setBuNo(IdUtil.simpleUUID()); articleCountDto.setCustomerId(postArticleViewsRequest.getCustomerId()); articleCountDto.setArticleNo(postArticleViewsRequest.getArticleNo()); articleCountDto.setReadTime(new Date()); String strArticleCountDto = JSON.toJSONString(articleCountDto); strRedisTemplate.opsForList().rightPush(zhArticleCountRedisKey, strArticleCountDto); return WrapMapper.ok(); } * 批量将缓存中的数据同步到MySQL public Object postBatchRedisToDb() { Date now = new Date(); while (true) { List<String> strArticleCountList = strRedisTemplate.opsForList().range(zhArticleCountRedisKey, 0, articleReadNum); if (CollectionUtils.isEmpty(strArticleCountList)) { return WrapMapper.ok(); } List<ArticleCountDto> articleCountDtoList = new ArrayList<>(); strArticleCountList.stream().forEach(x -> { ArticleCountDto articleCountDto = JSON.parseObject(x, ArticleCountDto.class); articleCountDtoList.add(articleCountDto); }); //过滤出本次定时任务之前的缓存中数据,防止死循环 List<ArticleCountDto> beforeArticleCountDtoList = articleCountDtoList.stream().filter(x -> x.getReadTime() .before(now)).collect(Collectors.toList()); if (CollectionUtils.isEmpty(beforeArticleCountDtoList)) { xArticleCountMapper.batchAdd(beforeArticleCountDtoList); Integer delSize = beforeArticleCountDtoList.size(); strRedisTemplate.opsForList().trim(zhArticleCountRedisKey, delSize, -1L); } }
模拟用户请求访问后台(多次请求)
查看缓存中访问数据
模拟定时任务将缓存中数据同步到DB中
这时查看缓存中的数据已经没了
查看数据库表结构
感谢各位的阅读!关于“Spring Boot如何解决Redis缓存+MySQL批量入库问题”这篇文章就分享到这里了,希望以上内容可以对大家有一定的帮助,让大家可以学到更多知识,如果觉得文章不错,可以把它分享出去让更多的人看到吧!
免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。