# base_study

**Repository Path**: dc0621/base_study

## Basic Information

- **Project Name**: base_study
- **Description**: 代码重构、设计模式、java8、JVM、JUC、常用工具类、技术性文档等学习
- **Primary Language**: Java
- **License**: MulanPSL-1.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 9
- **Forks**: 4
- **Created**: 2020-11-11
- **Last Updated**: 2024-12-06

## Categories & Tags

**Categories**: Uncategorized

**Tags**: Java, juc, 设计模式, 重构, jvm

## README

# 基础学习

## 说明
当前项目，涉及的模块，分别为：项目重构、设计模式、UML、Java8、JVM、JUC、工具包(Guava、Hutool)、Json学习...

---

### 1、[项目重构](./src/main/java/com/dc/refactoring)
- [入门](src/main/java/com/dc/refactoring/_0_入门)
- [重新组织函数](src/main/java/com/dc/refactoring/_1_重新组织函数)
- [在对象之间搬移特性](src/main/java/com/dc/refactoring/_2_在对象之间搬移特性)
- [重新组织数据](src/main/java/com/dc/refactoring/_3_重新组织数据)
- [简化条件表达式](src/main/java/com/dc/refactoring/_4_简化条件表达式)
- [简化函数调用](src/main/java/com/dc/refactoring/_5_简化函数调用)
- [处理概括关系](src/main/java/com/dc/refactoring/_6_处理概括关系)
- [大型重构](src/main/java/com/dc/refactoring/_7_大型重构)

### 2、[设计模式](./src/main/java/com/dc/designPattern)
- [设计原则](./src/main/java/com/dc/designPattern/_0_设计原则)
  - [单一职责原则](./src/main/java/com/dc/designPattern/_0_设计原则/_1_srp)
  - [开闭原则](./src/main/java/com/dc/designPattern/_0_设计原则/_2_ocp)
  - [里氏替换原则](./src/main/java/com/dc/designPattern/_0_设计原则/_3_lsp)
  - [依赖倒转原则](./src/main/java/com/dc/designPattern/_0_设计原则/_4_dip)
  - [接口隔离原则](./src/main/java/com/dc/designPattern/_0_设计原则/_5_isp)
  - [迪米特法则](./src/main/java/com/dc/designPattern/_0_设计原则/_6_lod)
  - [合成复用原则](./src/main/java/com/dc/designPattern/_0_设计原则/_7_crp)
- [设计原则](./src/main/java/com/dc/designPattern/_0_设计原则)
- [单例模式](./src/main/java/com/dc/designPattern/_1_singleton)
- [工厂模式](./src/main/java/com/dc/designPattern/_2_factory)
- [抽象工厂模式](./src/main/java/com/dc/designPattern/_2_factory/_3_absfactory)
- [原型模式](./src/main/java/com/dc/designPattern/_3_prototype)
- [建造者模式](./src/main/java/com/dc/designPattern/_4_builder)
- [适配器模式](./src/main/java/com/dc/designPattern/_5_adapter)
- [桥接模式](./src/main/java/com/dc/designPattern/_6_bridge)
- [装饰者模式](./src/main/java/com/dc/designPattern/_7_decorator)
- [组合模式](./src/main/java/com/dc/designPattern/_8_composite)
- [外观模式](./src/main/java/com/dc/designPattern/_9_facade)
- [享元模式](./src/main/java/com/dc/designPattern/_10_flyweight)
- [代理模式](./src/main/java/com/dc/designPattern/_11_proxy)
- [模版方法模式](./src/main/java/com/dc/designPattern/_12_template)
- [命令模式](./src/main/java/com/dc/designPattern/_13_command)
- [访问者模式](./src/main/java/com/dc/designPattern/_14_visitor)
- [迭代器模式](./src/main/java/com/dc/designPattern/_15_iterator)
- [观察者模式](./src/main/java/com/dc/designPattern/_16_observer)
- [中介者模式](./src/main/java/com/dc/designPattern/_17_mediator)
- [备忘录模式](./src/main/java/com/dc/designPattern/_18_memento)
- [解释器模式](./src/main/java/com/dc/designPattern/_19_interpreter)
- [状态模式](./src/main/java/com/dc/designPattern/_20_state)
- [策略模式](./src/main/java/com/dc/designPattern/_21_strategy)
- [责任链模式](./src/main/java/com/dc/designPattern/_22_responsibilitychain)


### 3、[UML学习](./src/main/java/com/dc/uml)
- [UML类图](./src/main/java/com/dc/uml/classDiagrams)

### 4、[Java8学习](./src/main/java/com/dc/java8)
- [Lambda](./src/main/java/com/dc/java8/_1_lambda)
- [Function](./src/main/java/com/dc/java8/_2_function)
- [Stream](./src/main/java/com/dc/java8/_3_stream)
- [ForkJoin框架](./src/main/java/com/dc/java8/_4_forkJoin)
- [新日期时间类_DateTime](./src/main/java/com/dc/java8/_5_dateTime)
- [接口增强](./src/main/java/com/dc/java8/_6_interfaceT)
- [Optional使用](./src/main/java/com/dc/java8/_7_optional)
- [重复注解](./src/main/java/com/dc/java8/_8_annotation)
- [其他(补充)](./src/main/java/com/dc/java8/other)

### 5、[JVM](./src/main/java/com/dc/docs/_6_jvm)
- 内存与垃圾回收
    - [JVM与Java体系结构](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_1_JVM与java体系结构.md)
    - [类加载子系统](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_2_类加载子系统.md)
    - [运行时数据区及程序计数器](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_3_运行时数据区及程序计数器.md)
    - [虚拟机栈](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_4_虚拟机栈.md)
    - [本地方法接口和本地方法栈](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_5_本地方法接口和本地方法栈.md)
    - [堆](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_6_堆.md)
    - [方法区](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_7_方法区.md)
    - [直接内存](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_8_直接内存.md)
    - [对象的实例化内存布局与访问定位](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_9_对象的实例化内存布局与访问定位.md)
    - [执行引擎](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_10_执行引擎.md)
    - [StringTable](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_11_StringTable.md)
    - [垃圾回收概述](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_12_垃圾回收概述.md)
    - [垃圾回收相关算法](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_13_垃圾回收相关算法.md)
    - [垃圾回收相关概念](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_14_垃圾回收相关概念.md)
    - [垃圾回收器](./src/main/java/com/dc/docs/_6_jvm/_1_内存与垃圾回收/_15_垃圾回收器.md)
- 字节码与类的加载
    - [class文件结构](./src/main/java/com/dc/docs/_6_jvm/_2_字节码与类的加载/_1_class文件结构.md)
    - [字节码指令集](./src/main/java/com/dc/docs/_6_jvm/_2_字节码与类的加载/_2_字节码指令集.md)
    - [类的加载过程](./src/main/java/com/dc/docs/_6_jvm/_2_字节码与类的加载/_3_类的加载过程.md)
    - [再谈类的加载器](./src/main/java/com/dc/docs/_6_jvm/_2_字节码与类的加载/_4_再谈类的加载器.md)
- 性能监控与调优
    - [JVM监控及诊断工具-命令行篇](./src/main/java/com/dc/docs/_6_jvm/_3_性能监控与调优/_1_JVM监控及诊断工具-命令行篇.md)    
    - [JVM监控及诊断工具-GUI篇](./src/main/java/com/dc/docs/_6_jvm/_3_性能监控与调优/_2_JVM监控及诊断工具-GUI篇.md)
    - [JVM运行时参数](./src/main/java/com/dc/docs/_6_jvm/_3_性能监控与调优/_3_JVM运行时参数.md)
    - [分析GC日志](./src/main/java/com/dc/docs/_6_jvm/_3_性能监控与调优/_4_分析GC日志.md)
    - [浅堆深堆与内存泄露](./src/main/java/com/dc/docs/_6_jvm/_3_性能监控与调优/_5_浅堆深堆与内存泄露.md)
    - [使用OQL语言查询对象信息](./src/main/java/com/dc/docs/_6_jvm/_3_性能监控与调优/_6_使用OQL语言查询对象信息.md)

### 6、[JUC](./src/main/java/com/dc/juc)
- [原子性](./src/main/java/com/dc/juc/example/_1_count)
- [synchronized关键字](./src/main/java/com/dc/juc/example/_2_sync)
- [atomic](./src/main/java/com/dc/juc/example/_3_atomic)
- [发布](./src/main/java/com/dc/juc/example/_4_publish)
- [不可变对象](./src/main/java/com/dc/juc/example/_5_immutable)
- [ThreadLocal](./src/main/java/com/dc/juc/example/_6_threadLocal)
- [非线程安全类](./src/main/java/com/dc/juc/example/_7_unselfClass)
- [同步容器](./src/main/java/com/dc/juc/example/_8_syncContainer)
- [并发容器](./src/main/java/com/dc/juc/example/_9_concurrent)
- [AQS](./src/main/java/com/dc/juc/example/_10_aqs)
- [Lock](./src/main/java/com/dc/juc/example/_11_lock)
- [Future](./src/main/java/com/dc/juc/example/_12_future)
- [阻塞队列](./src/main/java/com/dc/juc/example/_13_blockingQueue)
- [线程池](./src/main/java/com/dc/juc/example/_14_threadPool)
- [死锁](./src/main/java/com/dc/juc/example/_15_deadLock)

### 7、[工具包](src/main/java/com/dc/toolkit)
- [Guava案例](src/main/java/com/dc/toolkit/guava)
- [Hutool案例](src/main/java/com/dc/toolkit/hutool)
- JSON
   - [Fastjson](src/main/java/com/dc/toolkit/json_fastjson)
   - [Gson](src/main/java/com/dc/toolkit/json_gson)
   - [Jackson](src/main/java/com/dc/toolkit/json_jackson) 

### 8、[文档整理](./src/main/java/com/dc/docs/Notes.md)
- [Java基础](./src/main/java/com/dc/docs/_1_java)
- [数据库](./src/main/java/com/dc/docs/_2_数据库)
- [计算机基础](./src/main/java/com/dc/docs/_3_计算机基础)
- [系统设计](./src/main/java/com/dc/docs/_4_系统设计)
- [消息队列](./src/main/java/com/dc/docs/_5_消息队列)
  - [为什么使用消息队列?](./src/main/java/com/dc/docs/_5_消息队列/_1_why-mq.md)
  - [如何保证消息队列的高可用?](./src/main/java/com/dc/docs/_5_消息队列/_2_如何保证消息队列的高可用.md)
  - [如何保证消息不被重复消费?](./src/main/java/com/dc/docs/_5_消息队列/_3_如何保证消息不被重复消费.md)
  - [如何保证消息的可靠性传输?](./src/main/java/com/dc/docs/_5_消息队列/_4_如何保证消息的可靠性传输.md)
  - [如何保证消息的顺序性?](./src/main/java/com/dc/docs/_5_消息队列/_5_如何保证消息的顺序性.md)
  - [如何解决消息队列的延时以及过期失效问题?](./src/main/java/com/dc/docs/_5_消息队列/_6_如何解决消息队列的延时以及过期失效问题.md)
  - [如何设计一个消息队列?](./src/main/java/com/dc/docs/_5_消息队列/_7_如何设计一个消息队列.md)
- [面试](./src/main/java/com/dc/docs/_888_面试)
  - [JVM](./src/main/java/com/dc/docs/_888_面试/JVM.md)
  - [Java并发编程](./src/main/java/com/dc/docs/_888_面试/concurrent/Java并发编程.md)
- [业务案例](./src/main/java/com/dc/docs/_998_业务案例)
  - [积分](./src/main/java/com/dc/docs/_998_业务案例/_1_积分.md)
  - [发票](./src/main/java/com/dc/docs/_998_业务案例/_2_发票.md)
  - [活动消息](./src/main/java/com/dc/docs/_998_业务案例/_3_活动消息.md)
  - [组装树](./src/main/java/com/dc/docs/_998_业务案例/_4_组装树.md)
  - [数据导出并发送邮件](./src/main/java/com/dc/docs/_998_业务案例/_5_数据导出并发送邮件.md)
  - [数据同步](./src/main/java/com/dc/docs/_998_业务案例/_6_数据同步.md)
  - [性能调优](./src/main/java/com/dc/docs/_998_业务案例/_7_性能调优)
    - [高并发性能指标](./src/main/java/com/dc/docs/_998_业务案例/_7_性能调优/高并发性能指标.md)
    - [SpringBoot内置tomcat参数调优](./src/main/java/com/dc/docs/_998_业务案例/_7_性能调优/SpringBoot内置tomcat参数调优.md)
    - [性能调优之营销活动](./src/main/java/com/dc/docs/_998_业务案例/_7_性能调优/性能调优之营销活动.md)
  - [线程池、异步任务应用](./src/main/java/com/dc/docs/_998_业务案例/_8_线程池、异步任务应用.md)
  - [抽奖案例](./src/main/java/com/dc/docs/_998_业务案例/_9_抽奖)
- [实用整理](./src/main/java/com/dc/docs/_999_实用整理)
  - [IDEA快捷键](./src/main/java/com/dc/docs/_999_实用整理/IDEA快捷键.md)
  - [Linux操作](./src/main/java/com/dc/docs/_999_实用整理/Linux操作.md)
  - [Git命令](./src/main/java/com/dc/docs/_999_实用整理/Git命令.md)
  - [Maven相关](./src/main/java/com/dc/docs/_999_实用整理/Maven相关.md)
  - [Validation注解](./src/main/java/com/dc/docs/_999_实用整理/Validation注解.md)
  - [Typora使用](./src/main/java/com/dc/docs/_999_实用整理/Typora使用.md)
  - [开发手册](./src/main/java/com/dc/docs/_999_实用整理/开发手册.md)