Java Knowledge Map (attached: Ali Java Learning program)

Source: Internet
Author: User

Summary:
This article mainly depicts the Java Basic Learning process, gives the Java knowledge structure diagram, as well as the Ali Java Post Learning Plan, for Java learning enthusiasts, preparation and will be engaged in Java development students benefit.

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JVM         1. 内存模型(      内存分为几部分?      堆溢出、栈溢出原因及实例?线上如何排查?)         2. 类加载机制         3. 垃圾回收 Java基础    什么是接口?什么是抽象类?区别是什么?    什么是序列化?    网络通信过程及实践    什么是线程?java线程池运行过程及实践(Executors)        java反射机制实践设计模式        单例模式、原型模式、动态代理模式Spring         什么是IOC     什么是AOP     spring事务管理:模板事务跟标注事务的区别及运理原理,什么是事务的传播机制数据库        锁机制:锁的作用是什么,什么是乐观锁,什么是悲观锁,怎么实现 ?    索引:熟悉联合索引及sql执行计划
1. java内存模型学习内容:学习java内存模型实验方法:写一段代码触发内存溢出,分别触发栈内存和堆内存溢出,写一段代码导致持久代溢出。使用工具查看内存占用情况,学会如何分析内存溢出。2. 多线程学习内容:多线程的NIO实现,IO实现(两种实现,阻塞,非阻塞)试验方法:写一段代码实现多人聊天室,包括双人聊天和多人聊天。3. 动态代理(工厂模式)(1)学习内容:JDK动态代理实现,试验方法:一个方法的前置拦截,后置拦截,前置打印获取类名,方法名字,调用参数打印。后置打印返回结果(返回的结果是一个复杂的类)。(2)学习内容:spring框架试验方法:对某一包下,所有类的方法做切面,打印日志。4. 反射机制学习内容:java的反射机制试验方法:写一段程序,调用一个Bean下实现了标注(“autocall”)的方法5. 配置数据源学习内容:配置数据源实验方法:自己建一张表,引入数据库连接池,自动插入20万条数据,创建联合索引,验证走索引和不走索引的耗时,查看sql是否走索引,学会查看查询,计划实验,用标注式事务,编程式事务(查看编程式事务源码实现);用乐观锁和悲观锁实现数据更新。



Learning needs to know:
1. What is
2. What problems have been solved
3, how to achieve

This article goes to CSDN, the "Java Basic learning Process" (http://blog.csdn.net/scythe666/article/details/51699954) article of Bill.

Java Knowledge Map (attached: Ali Java Learning program)

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