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Title: GitHub - lpy2017/Java-learning: Java相关知识总结，包括Java基础、MySQL、Springboot、mybatis、Redis、rabbitMQ等等，面试必备！

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Description: Java相关知识总结，包括Java基础、MySQL、Springboot、mybatis、Redis、rabbitMQ等等，面试必备！ - lpy2017/Java-learning

Open Graph Description: Java相关知识总结，包括Java基础、MySQL、Springboot、mybatis、Redis、rabbitMQ等等，面试必备！ - lpy2017/Java-learning

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MySQL中的 distinct 和 group by 哪个效率更高？https://mp.weixin.qq.com/s/jPUjKl81Es3bbtGoqdVDxg
MySQL慢查询之慢 SQL 定位、日志分析与优化方案https://mp.weixin.qq.com/s/XpEfv0M_ArMa69fnXugWig
MySQL 上亿大表如何优化？https://mp.weixin.qq.com/s/YSlhVJYp9AhR_UZEJKH1Vg
字节一面：select......for update会锁表还是锁行？https://mp.weixin.qq.com/s/FW6y8UXVDODG2ViiiWKfYQ
面试官：从 MySQL 读取 100w 数据进行处理，应该怎么做？https://mp.weixin.qq.com/s/a8vgtTvdgAU6E9xOfm18nw
面试官：int(1) 和 int(10) 有什么区别？https://mp.weixin.qq.com/s/0P1R2JqTWuPvmqEA2ttj_w
1000万的数据，怎么查询？https://mp.weixin.qq.com/s/WJmwxDGg6fOfV6hJ300Diw
新同事竟然不懂 where 1=1 是什么意思？https://mp.weixin.qq.com/s/DjocMG-lE4Swsq2gTvl_7g
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#redis
Redis高频面试题总结https://topjavaer.cn/redis/redis.html
Redis如何实现库存扣减操作和防止被超卖？https://topjavaer.cn/advance/excellent-article/1-redis-stock-minus.html
Redis持久化详解https://topjavaer.cn/redis/article/redis-duration.html
为什么Redis 6.0 引入多线程https://topjavaer.cn/redis/article/redis-multi-thread.html
缓存和数据库一致性问题，看这篇就够了https://topjavaer.cn/redis/article/cache-db-consistency.html
Redis 集群模式的工作原理https://topjavaer.cn/redis/article/redis-cluster-work.html
面试官问：你们项目中用Redis来干什么？https://mp.weixin.qq.com/s/eAKajEByV1P4eOF9J1hiNA
MySQL和Redis如何保持数据一致性?https://mp.weixin.qq.com/s/0t3ZZpwwczFfrgbbvrTJRw
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#elasticsearch
ElasticSearch高频面试题https://mp.weixin.qq.com/s/Ffb8NDgavf9QAWYBm0qAVg
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#mongodb
MongoDB高频面试题https://topjavaer.cn/database/mongodb.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#框架
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#spring
Spring高频面试题30道https://topjavaer.cn/framework/spring.html
Spring为何需要三级缓存解决循环依赖，而不是二级缓存？https://topjavaer.cn/advance/excellent-article/6-spring-three-cache.html
@Transactional事务注解详解https://topjavaer.cn/advance/excellent-article/2-spring-transaction.html
一文彻底搞懂Spring事务传播行为https://topjavaer.cn/framework/spring/transaction-propagation.html
15个Spring扩展点https://mp.weixin.qq.com/s/q2ZLXxAM0AC7sDlq6kDA4Q
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#spring-boot
Spring Boot总结https://patch-diff.githubusercontent.com/lpy2017/Java-learning/blob/master/%E6%A1%86%E6%9E%B6/SpringBoot%E5%AE%9E%E6%88%98.html
SpringBoot面试题总结https://topjavaer.cn/framework/springboot.html
SpringBoot自动装配原理https://topjavaer.cn/advance/excellent-article/3-springboot-auto-assembly.html
SpringBoot如何解决跨域问题https://topjavaer.cn/framework/springboot/springboot-cross-domain.html
SpringBoot项目启动优化实践https://mp.weixin.qq.com/s/-WtrN3jD8pVXTHQ-kpwqQA
SpringBoot实现电子文件签字+合同系统https://topjavaer.cn/framework/springboot/springboot-contract.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#spring-mvc
Spring MVC面试题总结https://topjavaer.cn/framework/springmvc.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#mybatis
Mybatis入门知识点https://patch-diff.githubusercontent.com/lpy2017/Java-learning/blob/master/%E6%A1%86%E6%9E%B6/%E6%B7%B1%E5%85%A5%E6%B5%85%E5%87%BAMybatis%E6%8A%80%E6%9C%AF%E5%8E%9F%E7%90%86%E4%B8%8E%E5%AE%9E%E6%88%98.html
Mybatis面试题总结https://topjavaer.cn/framework/mybatis.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#springcloud
SpringCloud面试题https://topjavaer.cn/framework/springcloud-interview.html
SpringCloud总结https://topjavaer.cn/framework/springcloud-overview.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#zookeeper
Zookeeper面试题https://topjavaer.cn/zookeeper/zk.html
Zookeeper有哪些使用场景？https://topjavaer.cn/zookeeper/zk-usage.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#netty
Netty实战笔记https://topjavaer.cn/framework/netty-overview.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#计算机网络
计算机网络常见面试题总结https://topjavaer.cn/computer-basic/network.html
TCP常见面试题总结https://topjavaer.cn/computer-basic/tcp.html
有了HTTP，为啥还要用RPChttps://topjavaer.cn/advance/excellent-article/15-http-vs-rpc.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#数据结构与算法
常见数据结构总结https://topjavaer.cn/computer-basic/data-structure.html
如何高效的刷LeetCode？https://www.zhihu.com/question/280279208/answer/2377906738
120道Leetcode题解（高频）https://topjavaer.cn/leetcode/hot120/
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#设计模式
字节跳动大佬总结的设计模式PDFhttps://t.1yb.co/y96J
设计模式的六大原则https://topjavaer.cn/advance/design-pattern/1-principle.html
设计模式之单例模式https://topjavaer.cn/advance/design-pattern/2-singleton.html
设计模式之工厂模式https://topjavaer.cn/advance/design-pattern/3-factory.html
设计模式之模板模式https://topjavaer.cn/advance/design-pattern/4-template.html
设计模式之策略模式https://topjavaer.cn/advance/design-pattern/5-strategy.html
设计模式之责任链模式https://topjavaer.cn/advance/design-pattern/6-chain.html
设计模式之迭代器模式https://topjavaer.cn/advance/design-pattern/7-iterator.html
设计模式之装饰器模式https://topjavaer.cn/advance/design-pattern/8-decorator.html
设计模式之适配器模式https://topjavaer.cn/advance/design-pattern/9-adapter.html
设计模式之观察者模式https://topjavaer.cn/advance/design-pattern/10-observer.html
设计模式之代理模式https://topjavaer.cn/advance/design-pattern/11-proxy.html
设计模式之建造者模式https://topjavaer.cn/advance/design-pattern/12-builder.html
代码越写越乱？那是因为你没用责任链https://mp.weixin.qq.com/s/TpB5bmNwlcJj-XZo5iXXtg
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#分布式
微服务面试题https://topjavaer.cn/advance/distributed/4-micro-service.html
RPC面试题https://topjavaer.cn/advance/distributed/3-rpc.html
分布式事务总结https://topjavaer.cn/advance/distributed/6-distributed-transaction.html
全局唯一ID生成方案https://topjavaer.cn/advance/distributed/1-global-unique-id.html
分布式架构演进https://mp.weixin.qq.com/s?__biz=Mzg2OTY1NzY0MQ==&mid=2247490543&idx=1&sn=ee34bee96511d5e548381e0576f8b484&chksm=ce98e6a9f9ef6fbf7db9c2b6d2fed26853a3bc13a50c3228ab57bea55afe0772008cdb1f957b&token=1594696656&lang=zh_CN#rd
新一代分布式任务调度框架https://topjavaer.cn/advance/excellent-article/22-distributed-scheduled-task.html
分布式锁怎么实现？https://topjavaer.cn/distributed/article/distributed-lock.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#高并发
限流算法总结https://topjavaer.cn/advance/concurrent/1-current-limiting.html
负载均衡https://topjavaer.cn/advance/concurrent/2-load-balance.html
限流的几种方案https://topjavaer.cn/advance/excellent-article/17-limit-scheme.html
面试官：如何保证接口幂等性？一口气说了12种方法！https://topjavaer.cn/advance/excellent-article/8-interface-idempotent.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#消息队列
消息队列面试题https://topjavaer.cn/message-queue/mq.html
RabbitMQ面试题总结https://topjavaer.cn/message-queue/rabbitmq.html
Kafka面试题总结https://topjavaer.cn/message-queue/kafka.html
消息队列常见的使用场景https://topjavaer.cn/advance/excellent-article/27-mq-usage.html
如何从0到1设计消息队列https://topjavaer.cn/advance/system-design/16-mq-design.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#海量数据场景题
大数据中 TopK 问题的常用套路https://topjavaer.cn/mass-data/8-topk-template.html
统计不同电话号码的个数https://topjavaer.cn/mass-data/1-count-phone-num.html
出现频率最高的100个词https://topjavaer.cn/mass-data/2-find-hign-frequency-word.html
查找两个大文件共同的URLhttps://topjavaer.cn/mass-data/3-find-same-url.html
如何在100亿的数据中找到中位数https://topjavaer.cn/mass-data/4-find-mid-num.html
找出最热门的查询串https://topjavaer.cn/mass-data/5-find-hot-string.html
如何找出排名前500的数字https://topjavaer.cn/mass-data/6-top-500-num.html
如何按照 query 的频度排序？https://topjavaer.cn/mass-data/7-query-frequency-sort.html
5亿个数的大文件怎么排序？https://topjavaer.cn/mass-data/9-sort-500-million-large-files.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#系统设计
扫码登录https://topjavaer.cn/advance/system-design/1-scan-code-login.html
订单超时未支付自动取消https://topjavaer.cn/advance/system-design/2-order-timeout-auto-cancel.html
短链系统设计https://topjavaer.cn/advance/system-design/3-short-url.html
超卖问题https://topjavaer.cn/advance/system-design/4-oversold.html
秒杀系统设计https://topjavaer.cn/advance/system-design/5-second-kill.html
秒杀系统设计的5个要点https://topjavaer.cn/advance/system-design/12-second-kill-5-pointmd
微信红包系统如何设计？https://topjavaer.cn/advance/system-design/6-wechat-redpacket-design.html
如何把一个文件较快的发送到100w个服务器？https://topjavaer.cn/advance/system-design/7-file-send.html
如何用 Redis 统计用户访问量？https://topjavaer.cn/advance/system-design/10-pdd-visit-statistics
实时订阅推送设计https://topjavaer.cn/advance/system-design/11-realtime-subscribe-push.html
权限系统设计方案https://topjavaer.cn/advance/system-design/13-permission-system.html
如何设计一个抢红包系统https://topjavaer.cn/advance/system-design/15-red-packet.html
如何从0到1设计消息队列https://topjavaer.cn/advance/system-design/16-mq-design.html
购物车系统怎么设计？https://topjavaer.cn/advance/system-design/17-shopping-car.html
如何设计一个注册中心？https://topjavaer.cn/advance/system-design/18-register-center.html
如何设计一个高并发系统？https://topjavaer.cn/advance/system-design/19-high-concurrent-system-design.html
分库分表平滑迁移https://topjavaer.cn/advance/system-design/20-sharding-smooth-migration.html
10w级别数据Excel导入优化https://topjavaer.cn/advance/system-design/21-excel-import.html
从3s到25ms！看看人家的接口优化技巧https://mp.weixin.qq.com/s/vDD_FT6re249HlPvgR9TRw
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#安全
什么是JWT？https://topjavaer.cn/advance/excellent-article/16-what-is-jwt.html
单点登录（SSO）设计与实现https://topjavaer.cn/advance/system-design/8-sso-design.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#大厂面经汇总
字节跳动https://topjavaer.cn/campus-recruit/interview/1-byte-and-dance.html
腾讯https://topjavaer.cn/campus-recruit/interview/2-tencent.html
百度https://topjavaer.cn/campus-recruit/interview/3-baidu.html
阿里https://topjavaer.cn/campus-recruit/interview/4-ali.html
快手https://topjavaer.cn/campus-recruit/interview/5-kuaishou.html
美团https://topjavaer.cn/campus-recruit/interview/6-meituan.html
shopeehttps://topjavaer.cn/campus-recruit/interview/7-shopee.html
京东https://topjavaer.cn/campus-recruit/interview/8-jingdong.html
华为https://topjavaer.cn/campus-recruit/interview/9-huawei.html
网易https://topjavaer.cn/campus-recruit/interview/10-netease.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#优质文章
干掉“重复代码”的技巧有哪些https://topjavaer.cn/advance/excellent-article/4-remove-duplicate-code.html
大文件上传时如何做到秒传？https://topjavaer.cn/advance/excellent-article/10-file-upload.html
架构的演进https://topjavaer.cn/advance/excellent-article/14-architect-forward.html
8种架构模式https://topjavaer.cn/advance/excellent-article/11-8-architect-pattern.html
几种常见的架构模式https://topjavaer.cn/advance/excellent-article/20-architect-pattern.html
线上接口很慢怎么办？https://topjavaer.cn/practice/service-performance-optimization.html
不要再封装各种 Util 工具类了，这个神级框架值得拥有！https://mp.weixin.qq.com/s/7VuxBrBcXsAoykcJyNRsvQ
怎样写出优雅的代码？https://mp.weixin.qq.com/s/ph2pH4O1G_6YScGITaiJwg
BitMap牛逼在哪里？https://mp.weixin.qq.com/s/jfRCHHh2D6wMAeyD7XLKxg
什么是雪花算法？啥原理？附 Java 实现！https://mp.weixin.qq.com/s/1Kx55x3fYUs9afpeAzIUOg
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#工具
Git 高频面试题总结https://topjavaer.cn/tools/git.html
Git 超详细总结！https://topjavaer.cn/tools/git-overview.html
Linux 常用命令总结！https://topjavaer.cn/tools/linux-overview.html
Docker 基础总结！https://topjavaer.cn/tools/docker-overview.html
Maven 基础总结！https://topjavaer.cn/tools/maven-overview.html
Nginx 高频面试题https://topjavaer.cn/tools/nginx.html
https://patch-diff.githubusercontent.com/lpy2017/Java-learning#交流
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https://patch-diff.githubusercontent.com/lpy2017/Java-learning#赞赏
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