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Title: GitHub - NullPointerException-0/JavaGuide: 「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试，首选 JavaGuide！

Open Graph Title: GitHub - NullPointerException-0/JavaGuide: 「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试，首选 JavaGuide！

X Title: GitHub - NullPointerException-0/JavaGuide: 「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试，首选 JavaGuide！

Description: 「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试，首选 JavaGuide！ - NullPointerException-0/JavaGuide

Open Graph Description: 「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试，首选 JavaGuide！ - NullPointerException-0/JavaGuide

X Description: 「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试，首选 JavaGuide！ - NullPointerException-0/JavaGuide

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https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#新特性
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Java 14~15 新特性概览https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/java/new-features/java14-15.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#计算机基础
图解计算机基础 PDF 下载https://mp.weixin.qq.com/s?__biz=Mzg2OTA0Njk0OA==&mid=100021725&idx=1&sn=2db9664ca25363139a81691043e9fd8f&chksm=4ea19a1679d61300d8990f7e43bfc7f476577a81b712cf0f9c6f6552a8b219bc081efddb5c54#rd
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#操作系统
操作系统常见问题总结！https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/operating-system/operating-system-basic-questions-01.md
后端程序员必备的 Linux 基础知识总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/operating-system/linux-intro.md
Shell 编程入门https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/operating-system/shell-intro.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#网络
OSI 和 TCP/IP 网络分层模型详解（基础）https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/network/osi&tcp-ip-model.md
HTTP vs HTTPS（应用层）https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/network/http&https.md
HTTP 1.0 vs HTTP 1.1（应用层）https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/network/http1.0&http1.1.md
计算机网络常见知识点&面试题（补充）https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/network/other-network-questions.md
谢希仁老师的《计算机网络》内容总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/network/%E8%B0%A2%E5%B8%8C%E4%BB%81%E8%80%81%E5%B8%88%E7%9A%84%E3%80%8A%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%BD%91%E7%BB%9C%E3%80%8B%E5%86%85%E5%AE%B9%E6%80%BB%E7%BB%93.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#数据结构
线性数据结构 :数组、链表、栈、队列https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/data-structure/linear-data-structure.md
图https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/data-structure/graph.md
堆https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/data-structure/heap.md
树https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/data-structure/tree.md
红黑树https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/data-structure/red-black-tree.md
布隆过滤器https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/data-structure/bloom-filter.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#算法
算法学习书籍+资源推荐https://www.zhihu.com/question/323359308/answer/1545320858
如何刷Leetcode?https://www.zhihu.com/question/31092580/answer/1534887374
几道常见的字符串算法题总结 https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/algorithms/string-algorithm-problems.md
几道常见的链表算法题总结 https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/algorithms/linkedlist-algorithm-problems.md
剑指 offer 部分编程题https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/cs-basics/algorithms/the-sword-refers-to-offer.md
GeeksforGeekshttps://www.geeksforgeeks.org/fundamentals-of-algorithms/
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#数据库
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#基础-1
数据库基础知识总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/basis.md
字符集详解https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/character-set.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#mysql
MySQL知识点总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/mysql/mysql-questions-01.md
一千行 MySQL 学习笔记https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/mysql/a-thousand-lines-of-mysql-study-notes.md
MySQL 高性能优化规范建议https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/mysql/mysql-high-performance-optimization-specification-recommendations.md
MySQL数据库索引总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/mysql/mysql-index.md
事务隔离级别(图文详解)https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/mysql/transaction-isolation-level.md
MySQL三大日志(binlog、redo log和undo log)详解https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/mysql/mysql-logs.md
InnoDB存储引擎对MVCC的实现https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/mysql/innodb-implementation-of-mvcc.md
SQL语句在MySQL中的执行过程https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/mysql/how-sql-executed-in-mysql.md
关于数据库中如何存储时间的一点思考https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/mysql/some-thoughts-on-database-storage-time.md
MySQL中的隐式转换造成的索引失效https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/mysql/index-invalidation-caused-by-implicit-conversion.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#redis
Redis 常见问题总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/redis/redis-questions-01.md
3种常用的缓存读写策略https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/redis/3-commonly-used-cache-read-and-write-strategies.md
Redis 内存碎片https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/database/redis/redis-memory-fragmentation.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#搜索引擎
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#开发工具
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#docker
Docker 基本概念解读https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/tools/docker/docker-intro.md
Docker从入门到上手干事https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/tools/docker/docker-in-action.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#git
Git 入门https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/tools/git/git-intro.md
Github 小技巧https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/tools/git/github-tips.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#系统设计
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#基础-2
RestFul API 简明教程https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/basis/RESTfulAPI.md
Java 命名之道https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/basis/naming.md
重构https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/basis/refactoring.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#常用框架
《J2EE 基础知识》https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/J2EE%E5%9F%BA%E7%A1%80%E7%9F%A5%E8%AF%86.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#springspringboot-必看-1
Spring 常见知识点&面试题总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/framework/spring/spring-knowledge-and-questions-summary.md
SpringBoot 入门指南https://github.com/Snailclimb/springboot-guide
Spring/Spring Boot 常用注解总结！安排！https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/framework/spring/spring-common-annotations.md
Spring 事务总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/framework/spring/spring-transaction.md
Spring 中都用到了那些设计模式?https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/framework/spring/spring-design-patterns-summary.md
SpringBoot 自动装配原理https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/framework/spring/spring-boot-auto-assembly-principles.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#mybatis
MyBatis 常见面试题总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/framework/mybatis/mybatis-interview.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#spring-cloud
大白话入门 Spring Cloudhttps://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/framework/springcloud/springcloud-intro.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#安全
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#认证授权
《认证授权基础》https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/security/basis-of-authority-certification.md
JWT 优缺点分析以及常见问题解决方案https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/security/advantages&disadvantages-of-jwt.md
适合初学者入门 Spring Security With JWT 的 Demohttps://github.com/Snailclimb/spring-security-jwt-guide
SSO 单点登录看这篇就够了！https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/security/sso-intro.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#数据脱敏
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#敏感词过滤
《敏感词过滤》https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/security/sentive-words-filter.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#定时任务
《Java定时任务大揭秘》https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/system-design/schedule-task.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#分布式
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#cap-理论和-base-理论
CAP 理论和 BASE 理论解读https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/distributed-system/theorem&algorithm&protocol/cap&base-theorem.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#paxos-算法和-raft-算法
Paxos 算法解读https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/distributed-system/theorem&algorithm&protocol/paxos-algorithm.md
Raft 算法解读https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/distributed-system/theorem&algorithm&protocol/raft-algorithm.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#rpc
Dubbo 常见问题总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/distributed-system/rpc/dubbo.md
服务之间的调用为啥不直接用 HTTP 而用 RPC？https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/distributed-system/rpc/why-use-rpc.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#api-网关
为什么要网关？你知道有哪些常见的网关系统？https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/distributed-system/api-gateway.md
百亿规模API网关服务Shepherd的设计与实现https://tech.meituan.com/2021/05/20/shepherd-api-gateway.html
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#分布式-id
为什么要分布式 id ？分布式 id 生成方案有哪些？https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/distributed-system/distributed-id.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#分布式事务
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#分布式协调
【入门】ZooKeeper 相关概念总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/distributed-system/distributed-process-coordination/zookeeper/zookeeper-intro.md
【进阶】ZooKeeper 相关概念总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/distributed-system/distributed-process-coordination/zookeeper/zookeeper-plus.md
【实战】ZooKeeper 实战https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/distributed-system/distributed-process-coordination/zookeeper/zookeeper-in-action.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#高性能
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#消息队列
消息队列常见问题总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/high-performance/message-queue/message-queue.md
RabbitMQ 入门https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/high-performance/message-queue/rabbitmq-intro.md
RocketMQ 入门https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/high-performance/message-queue/rocketmq-intro
RocketMQ 的几个简单问题与答案https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/high-performance/message-queue/rocketmq-questions.md
Kafka 常见问题总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/high-performance/message-queue/kafka-questions-01.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#读写分离分库分表
读写分离&分库分表常见问题总结https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/high-performance/read-and-write-separation-and-library-subtable.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#负载均衡
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#高可用
如何设计一个高可用系统？要考虑哪些地方？https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/high-availability/high-availability-system-design.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#限流
何为限流？限流算法有哪些？https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/high-availability/limit-request.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#降级
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#熔断
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#排队
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#集群
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#超时和重试机制
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#灾备设计和异地多活
搞懂异地多活，看这篇就够了https://mp.weixin.qq.com/s/T6mMDdtTfBuIiEowCpqu6Q
四步构建异地多活https://mp.weixin.qq.com/s/hMD-IS__4JE5_nQhYPYSTg
《从零开始学架构》— 28 | 业务高可用的保障：异地多活架构http://gk.link/a/10pKZ
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#开发工具-1
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#git-1
Git 入门https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/tools/git/git-intro.md
Github 小技巧https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/tools/git/git-intro.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#docker-1
Docker 基本概念解读https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/tools/docker/docker-intro.md
Docker从入门到上手干事https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide/blob/main/docs/tools/docker/docker-in-action.md
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#关于作者
个人介绍 Q&Ahttps://javaguide.cn/about-the-author/
我曾经也是网瘾少年https://javaguide.cn/about-the-author/internet-addiction-teenager/
入职培训一个月后的感受https://javaguide.cn/about-the-author/feelings-after-one-month-of-induction-training/
从毕业到入职半年的感受https://javaguide.cn/about-the-author/feelings-of-half-a-year-from-graduation-to-entry/
某培训机构盗我文章做成视频还上了B站热门https://javaguide.cn/about-the-author/my-article-was-stolen-and-made-into-video-and-it-became-popular/
https://patch-diff.githubusercontent.com/NullPointerException-0/JavaGuide#公众号
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