一个 Java 对象由三部分组成

• 对象头
• 实例数据
• 对齐填充

要计算一个对象的大小, 只需要算出这三部分的大小即可

以下分析内容都基于 64 位 HotSpot 虚拟机, 并开启指针压缩

代理模式是一种常用的设计模式, 使用一个代理对象来代替真实对象的访问, 能够在不修改真实对象的情况下增加自定义操作, 提供额外的功能

广泛用于AOP框架, 日志框架, 事务处理, 权限控制等实际场景

Welcome to this blog. This blog is created with Docusaurus 2.

本文介绍了如何使用 Github Action 部署 Docusaurus 到 Github Pages

Docusaurus blogging features are powered by the blog plugin.

Simply add Markdown files (or folders) to the blog directory.

Regular blog authors can be added to authors.yml.

The blog post date can be extracted from filenames, such as:

• 2019-05-30-welcome.md
• 2019-05-30-welcome/index.md

A blog post folder can be convenient to co-locate blog post images:

The blog supports tags as well!

And if you don't want a blog: just delete this directory, and use blog: false in your Docusaurus config.

Blog posts support Docusaurus Markdown features, such as MDX.

<button onClick={() => alert('button clicked!')}>Click me!</button>

This is the summary of a very long blog post,

Use a <!-- truncate --> comment to limit blog post size in the list view.

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