摘要：前言 笔者最近在负责某集团网站时，同时用到了Nginx与F5，如图所示，负载均衡器F5作为处理外界请求的第一道“墙”，将请求分发到web服务器后，web服务器上的Nginx再进行处理，静态内容直接访问本地门户，动态数据则通过反向代理指向内网服务。 其实Nginx和F5这两者均可用作网站负载均衡，那二 阅读全文

摘要：Java NIO AsynchronousFileChannel In Java 7 the AsynchronousFileChannel was added to Java NIO. The AsynchronousFileChannel makes it possible to read da 阅读全文

摘要：Java NIO Files The Java NIO Files class (java.nio.file.Files) provides several methods for manipulating files in the file system. This Java NIO Files  阅读全文

摘要：Java NIO Path The Java Path interface is part of the Java NIO 2 update which Java NIO received in Java 6 and Java 7. The Java Path interface was added 阅读全文

摘要：Java NIO vs. IO When studying both the Java NIO and IO API's, a question quickly pops into mind: When should I use IO and when should I use NIO? In th 阅读全文

摘要：Java NIO Pipe A Java NIO Pipe is a one-way data connection between two threads. A Pipe has a source channel and a sink channel. You write data to the 阅读全文

摘要：Java NIO DatagramChannel A Java NIO DatagramChannel is a channel that can send and receive UDP packets. Since UDP is a connection-less network protoco 阅读全文

摘要：Java NIO: Non-blocking Server Even if you understand how the Java NIO non-blocking features work (Selector, Channel, Buffer etc.), designing a non-blo 阅读全文

摘要：Java NIO ServerSocketChannel A Java NIO ServerSocketChannel is a channel that can listen for incoming TCP connections, just like a ServerSocket in sta 阅读全文

摘要：Java NIO SocketChannel A Java NIO SocketChannel is a channel that is connected to a TCP network socket. It is Java NIO's equivalent of Java Networking 阅读全文

摘要：Java NIO FileChannel A Java NIO FileChannel is a channel that is connected to a file. Using a file channel you can read data from a file, and write da 阅读全文

摘要：Java NIO Selector A Selector is a Java NIO component which can examine one or more NIO Channel's, and determine which channels are ready for e.g. read 阅读全文

摘要：Java NIO Channel to Channel Transfers In Java NIO you can transfer data directly from one channel to another, if one of the channels is a FileChannel. 阅读全文

摘要：Java NIO Scatter / Gather Java NIO comes with built-in scatter / gather support. Scatter / gather are concepts used in reading from, and writing to ch 阅读全文

摘要：Java NIO Buffer Java NIO Buffers are used when interacting with NIO Channels. As you know, data is read from channels into buffers, and written from b 阅读全文

摘要：Java NIO Channel Java NIO Channels are similar to streams with a few differences: You can both read and write to a Channels. Streams are typically one 阅读全文

摘要：Java NIO Overview Java NIO consist of the following core components: Channels Buffers Selectors Java NIO has more classes and components than these, b 阅读全文

摘要：前言 问题 现在我们使用通用的应用程序和库来进行通信，例如：我们通常用一个HTTP 客户端库通过Web service调用远程服务从一个web服务器上获取信息。然而，一个通用的协议或其实现有时候不能很好地扩展。这就好比我们不使用HTTP 服务器传输超大文件，电子邮件信息，和接近实时的信息，比如财务信 阅读全文

摘要：《Scalable IO in Java》笔记 Scalable IO in Java http://gee.cs.oswego.edu/dl/cpjslides/nio.pdf 基本上所有的网络处理程序都有以下基本的处理过程:Read requestDecode requestProcess se 阅读全文

摘要：1. 私服介绍私服是指私有服务器，是架设在局域网的一种特殊的远程仓库，目的是代理远程仓库及部署第三方构建。有了私服之后，当 Maven 需要下载构件时，直接请求私服，私服上存在则下载到本地仓库；否则，私服请求外部的远程仓库，将构件下载到私服，再提供给本地仓库下载。 2. 环境准备Nexus 3.2. 阅读全文

摘要：悲观锁(Pessimistic Lock), 顾名思义，就是很悲观，每次去拿数据的时候都认为别人会修改，所以每次在拿数据的时候都会上锁，这样别人想拿这个数据就会block直到它拿到锁。传统的关系型数据库里边就用到了很多这种锁机制，比如行锁，表锁等，读锁，写锁等，都是在做操作之前先上锁。 乐观锁(Op 阅读全文