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💧 Blog 是一个十年 Java 程序员的博客。

Java

Java 面试总结 💯

JavaSE

Java 基础特性

Java 高级特性

  • Java 正则从入门到精通 - 关键词:PatternMatcher捕获与非捕获反向引用零宽断言贪婪与懒惰元字符DFANFA
  • Java 编码和加密 - 关键词:Base64消息摘要数字签名对称加密非对称加密MD5SHAHMACAESDESDESedeRSA
  • Java 国际化 - 关键词:LocaleResourceBundleNumberFormatDateFormatMessageFormat
  • Java JDK8 - 关键词:StreamlambdaOptional@FunctionalInterface
  • Java SPI - 关键词:SPIClassLoader

Java 容器

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Java IO

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  • Java IO 模型 - 关键词:InputStreamOutputStreamReaderWriter阻塞
  • Java NIO - 关键词:ChannelBufferSelector非阻塞多路复用
  • Java 序列化 - 关键词:SerializableserialVersionUIDtransientExternalizablewriteObjectreadObject
  • Java 网络编程 - 关键词:SocketServerSocketDatagramPacketDatagramSocket
  • Java IO 工具类 - 关键词:FileRandomAccessFileSystemScanner

Java 并发

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Java 虚拟机

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JavaEE

JavaWeb

Java 服务器

Tomcat 和 Jetty 都是 Java 比较流行的轻量级服务器。

Nginx 是目前最流行的反向代理服务器,也常用于负载均衡。

Java 软件

Java 构建

Java 项目需要通过 构建工具 来管理项目依赖,完成编译、打包、发布、生成 JavaDoc 等任务。

  • 目前最主流的构建工具是 Maven,它的功能非常强大。
  • Gradle 号称是要替代 Maven 等构件工具,它的版本管理确实简洁,但是需要学习 Groovy,学习成本比 Maven 高。
  • Ant 功能比 Maven 和 Gradle 要弱,现代 Java 项目基本不用了,但也有一些传统的 Java 项目还在使用。

Java IDE

自从有了 IDE,写代码从此就告别了刀耕火种的蛮荒时代。

  • Eclipse 是久负盛名的开源 Java IDE,我的学生时代一直使用它写 Java。
  • 曾经抗拒从转 Intellij Idea ,但后来发现真香,不得不说,确实是目前最优秀的 Java IDE。
  • 你可以在 vscode 中写各种语言,只要安装相应插件即可。如果你的项目中使用了很多种编程语言,又懒得在多个 IDE 之间切换,那么就用 vscode 来一网打尽吧。

Java 监控诊断

监控/诊断 工具主要用于 Java 应用的运维。通过采集、分析、存储、可视化应用的有效数据,帮助开发者、使用者快速定位问题,找到性能瓶颈。

Java 工具

Java IO

JavaBean 工具

Java 模板引擎

Java 测试工具

其他

Java 框架

Spring

综合
核心
数据
Web
IO
集成
其他

ORM

安全

Java 领域比较流行的安全框架就是 shiro 和 spring-security。

shiro 更为简单、轻便,容易理解,能满足大多数基本安全场景下的需要。

spring-security 功能更丰富,也比 shiro 更复杂。值得一提的是由于 spring-security 是 spring 团队开发,所以集成 spring 和 spring-boot 框架更容易。

IO

Java 中间件

缓存

缓存可以说是优化系统性能的第一手段,在各种技术中都会有缓存的应用。

如果想深入学习缓存,建议先了解一下 缓存基本原理,有助于理解缓存的特性、原理,使用缓存常见的问题及解决方案。

流量控制

计算机科学

数据结构和算法

数据库

数据库综合

数据库中间件

关系型数据库

关系型数据库 整理主流关系型数据库知识点。

公共知识
Mysql

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其他

文档数据库

MongoDB

MongoDB 是一个基于文档的分布式数据库,由 C++ 语言编写。旨在为 WEB 应用提供可扩展的高性能数据存储解决方案。

MongoDB 是一个介于关系型数据库和非关系型数据库之间的产品。它是非关系数据库当中功能最丰富,最像关系数据库的。它支持的数据结构非常松散,是类似 json 的 bson 格式,因此可以存储比较复杂的数据类型。

MongoDB 最大的特点是它支持的查询语言非常强大,其语法有点类似于面向对象的查询语言,几乎可以实现类似关系数据库单表查询的绝大部分功能,而且还支持对数据建立索引。

KV 数据库

Redis

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列式数据库

HBase

搜索引擎数据库

Elasticsearch

Elasticsearch 是一个基于 Lucene 的搜索和数据分析工具,它提供了一个分布式服务。Elasticsearch 是遵从 Apache 开源条款的一款开源产品,是当前主流的企业级搜索引擎。

Elastic

网络

如果你是做通信领域的开发,或者是 Web 应用的开发,那就或多或少需要了解一些计算机网络的知识 。

网络综合

理解计算机网络,首先需要从宏观层面了解计算机网络通信的分层结构。最有代表性的是 OSI 七层结构模型,但现实中更流行的是五层结构模型。

了解网络分层结构,需要了解每个网络层级在网络通信中的定位,以及这个层级主要的通信设备、通信协议。

网络协议

网络技术

分布式

分布式综合

分布式理论

分布式协同

分布式调度

  • 流量控制 - 关键词:限流熔断降级计数器法时间窗口法令牌桶法漏桶法
  • 负载均衡 - 关键词:轮询随机最少连接源地址哈希一致性哈希虚拟 hash 槽
  • 服务路由 - 关键词:路由条件路由脚本路由标签路由
  • 分布式会话 - 关键词:粘性 SessionSession 复制共享基于缓存的 session 共享
  • 分布式 ID - 关键词:UUID自增序列雪花算法Leaf

分布式高可用

分布式通信

RPC

RPC 综合

MQ

MQ 综合
Kafka
RocketMQ
其他 MQ

分布式存储

  • 数据缓存 - 关键词:进程内缓存分布式缓存缓存雪崩缓存穿透缓存击穿缓存更新缓存预热缓存降级
  • 读写分离
  • 分库分表 - 关键词:分片路由迁移扩容双写聚合

编程

编程范式

编程语言

设计

架构

综合

微服务

安全

设计模式

面向对象原则

创建型模式

创建型模式提供了创建对象的机制, 能够提升已有代码的灵活性和可复用性。

结构型模式

结构型模式介绍如何将对象和类组装成较大的结构, 并同时保持结构的灵活和高效。

行为型模式

行为模式负责对象间的高效沟通和职责委派。

重构

UML

DevOps

CI

CD

监控

工具

工作

方法论

规范

工具

🚪 传送

◾ 💧 钝悟的 IT 知识图谱 ◾ 🎯 钝悟的博客

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