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NeteaseCloudMusicApi

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Java虚拟机

9 minute read

Published: April 01, 2021

深入理解Java虚拟机总结

访问不到云服务器中的项目

1 minute read

Published: May 14, 2019

在阿里云部署了一个项目，发现一直访问不了，阿里云的安全组端口也没问题，后面又以为需要nginx反向代理将外部端口映射到内部的3000端口，后面还是不行，后面偶然的发现80端口能访问到项目，然后就发现可能是防火墙的问题，果真！！

安装npm和nodejs

1 minute read

Published: May 14, 2019

npm和nodejs的安装

SELinux、Netfilter、iptables、firewall和ufw五者关系

less than 1 minute read

Published: May 14, 2019

有点疑惑ufw和iptables的关系，就百度了一下，整出这五个，SELinux、Netfilter、iptables、firewall和ufw

排序算法

3 minute read

Published: April 29, 2019

选择排序，插入排序，快速排序，归并排序等…

Java中的阻塞队列

1 minute read

Published: April 28, 2019

阻塞队列常用于生产者和消费者的场景，生产者是向队列里添加元素的线程，消费者是从队列里取元素的线程。阻塞队列就是生产者用来存放元素，消费者用来获取元素的容器。

Java中线程池

1 minute read

Published: April 26, 2019

线程池是一种多线程处理形式，处理过程中将任务添加到队列，然后在创建线程后自动启动这些任务。

HTTP与HTTPS的区别

less than 1 minute read

Published: April 24, 2019

超文本传输协议HTTP协议被用于在Web浏览器和网站服务器之间传递信息，HTTP协议以明文方式发送内容，不提供任何方式的数据加密，如果攻击者截取了Web浏览器和网站服务器之间的传输报文，就可以直接读懂其中的信息，因此，HTTP协议不适合传输一些敏感信息，比如：信用卡号、密码等支付信息。

Lock接口

7 minute read

Published: April 23, 2019

Lock接口详解，内部实现及继承类

synchronized实现底层

2 minute read

Published: April 16, 2019

synchronized 关键字使用、底层原理、JDK1.6之后的底层优化以及和ReenTrantLock 的对比

双重检查锁定

less than 1 minute read

Published: April 14, 2019

双重检查锁定与volatile

Java内存模型

less than 1 minute read

Published: April 14, 2019

JMM通过控制主内存与每个线程的本地内存之间的交互，来为Java程序员提供内存可见性保证。

Semaphore-CountDownLatch-CyclicBarrier

3 minute read

Published: April 14, 2019

三种同步辅助工具类

计算机操作系统-死锁

1 minute read

Published: April 13, 2019

产生死锁的必要条件、处理方法、鸵鸟策略、死锁检测与恢复、死锁预防和避免…

实现会话跟踪的技术有哪些

less than 1 minute read

Published: April 12, 2019

Http是无状态协议，所以如何传递会话间的数据信息呢？

二叉树中节点与度数

less than 1 minute read

Published: April 06, 2019

二叉树中节点与度数…

n的阶乘结果后面0的个数

less than 1 minute read

Published: March 20, 2019

n的阶乘结果后面0的个数…

MySQL锁机制

less than 1 minute read

Published: March 14, 2019

相对其他数据库而言，MySQL的锁机制比较简单，其最显著的特点是不同的存储引擎支持不同的锁机制,MySQL支持行级锁，表级锁，页面锁。

MySQL存储引擎

less than 1 minute read

Published: March 14, 2019

MySQL5.0支持的存储引擎包括：MyISAM，InnoDB，BDB，MEMORY，Merge，EXAMPLE，BLACKHOLE…

MySQL中索引

less than 1 minute read

Published: March 14, 2019

善用MySQL中索引可以大大降低数据库增删改查的性能损耗，MySQL索引又可以分为B-Tree树索引，Hash索引…

慌慌慌

Published: March 21, 2019

明天还有面试咋办，一点都不想复习，啊啊啊！疯辽

DocStorm

Published: March 23, 2019

some bugs and new features

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Add Two Numbers

Published: March 23, 2019

1. Add Two Numbers

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum

1. Two Sum

Published: March 23, 2019

1. Two Sum