Chapter 7. Advanced topics http://hc.apache.org/httpcomponents-client-ga/tutorial/html/advanced.html 7.3. Using the FutureRequestExecutionService Using the FutureRequestExecutionService, you can schedule http calls and treat the response as a Future.…

  Cookbook就是工具书,应该是前年看的,在中关村看的影印版,全英文,本书主要讲解了一下模块: Core:BeanUtils,Lang,Collections,logging Db:DbUtils,DBCP,Pool IO: IO, XML vs Bean:betwixt,Digester,JXPath,Jelly 模版:EL, JEXL 通用:Codec,Id Web:FileUpload,httpClient 文件系统:VFS apache的工具包几乎是每个java工程都用到了的,或是…

今天看了一天的apache 的httpasyncclient ,为了和默认的httpclient做个对比,httpcore是核心轻量级的提供传统阻塞IO 和 java NIO两种方式,httpclient基于httpcore做的全功能封装 能应付绝大部分爬虫需求, HttpAsyncClient 是基于httpcore NIO 和httpclient基础上做的进一步封装,主要利用异步回调方式,适用于高性能需求的场景下 ,官方文档 如是说: Asynch HttpClient is a HTTP/…

http://www.onjava.com/pub/a/onjava/2001/05/30/optimization.htmlComparing the performance of LinkedLists and ArrayLists (and Vectors) (Page last updated May 2001, Added 2001-06-18, Author Jack Shirazi, Publisher OnJava). Tips: ArrayList is faster than…

很明显,以下的文字来自微软MSDN 链接http://msdn.microsoft.com/en-us/library/windows/desktop/ms681382(v=vs.85).aspx MSDN上分成了几个部分,查起来费事,统一放在这里了. 用kernel32.dll里的FormatMessage可以得到支持多语言的返回消息 有人把这些错误代码整理成了类,供参考 http://www.cnblogs.com/Sabre/p/3929264.html Note The informat…

http://blog.csdn.net/win_lin/article/details/8242653 译文在后面. State Threads for Internet Applications Introduction State Threads is an application library which provides a foundation for writing fast and highly scalable Internet Applications on UNIX-li…

nginx (pronounced "engine x") is a free open source web server written by Igor Sysoev, a Russian software engineer. Since its public launch in 2004, nginx has focused on high performance, high concurrency and low memory usage. Additional feature…

基础架构 拓扑图 Switching Path L3 routing at aggregation layer L2 switching at access layer L3 switch融合了三种功能: RP, router processor, 处理路由协议 SP, switch processor, 处理L2协议 ASIC, Application-specific integrated circuit专用集成电路,用于重写header的 对于traffic forwarding有几种方法…

HTTP 1.0 vs 1.1 Proxy support and the Host field: HTTP 1.1 has a required Host header by spec. HTTP 1.0 does not officially require a Host header, but it doesn’t hurt to add one, and many applications (proxies) expect to see the Host header regardles…

译文在后面. State Threads for Internet Applications Introduction State Threads is an application library which provides a foundation for writing fast and highly scalable Internet Applications on UNIX-like platforms. It combines the simplicity of the multi…