Understanding Java：NIO
This post we are going to talk about NIO and NIO.2 in Java. The NIO was introduced in Java 5. The NIO is missing several features, which wer
如何阅读源码
Understanding the Technique Answer questions: what is it? How it works? What is the project mission? Its structure and functionality of modu
Spring源码分析：IoC
In this post, we are going to diving into the Spring framework in deep. The main content of this post is to analyze IoC implementation in th
Tuning HotSpot VM：process and methods
Many applications perform well with the default settings of a JVM, but some applications require additional JVM tuning to meet their perform
Understanding JRockit VM：Adaptive Memory Management
This post is talking about automatic and adaptive memory management in the Java runtime. It mainly includes the following content: concepts
JVM Run-Time Data Areas
The Java Virtual Machine defines various run-time data areas that are used during execution of a program. Some of these data areas are creat
一行代码引发的内存泄露的故事
我在2019年的7月和8月之间大概花了两个多星期写了一个比较简单的爬虫项目，项目主要的功能是周期性的爬取一些网站的热点信息，然后把数据存在 Redis 缓存中，然后有一个可以切换不同网站和展示信息的页面。 为什么会写这个项目呢？写这个项目的原因是在 V2EX 网站上看到很多人在分
Understanding Java：Proxy
What is ProxyThe Proxy is a design pattern in software design. It provides a surrogate or placeholder for another object to control access t
Understanding MySQL EXPLAIN
The EXPLAIN command is the main way to find out how the query optimizer decides to execute queries. This feature has limitations and doesn’t
MySQL优化总结
Principles of MySQL OptimizationUsing general principles and best practices to create your table schema. Understanding the structure and pro
