Chen Jian

An online UML tutorial

Leave a Comment / Architecture / March 7, 2009 March 7, 2009

http://www.smartdraw.com/tutorials/software/uml/tutorial_01.htm e.g. Activity Diagram

[J2SE] What are “Installed Extensions”?

Leave a Comment / Java / March 3, 2009 March 3, 2009

"Installed extensions are JAR files in the lib/ext directory of the Java Runtime Environment (JRETM) software" http://java.sun.com/docs/books/tutorial/ext/basics/install.html

vbscript 的 sendKey 举例

Leave a Comment / Linux/Unix/Windows / February 6, 2009 February 6, 2009

‘ 自动到百度搜索歌曲：white flag Dim WshShell,Path,i Set WshShell = WScript.CreateObject("WScript.Shell") WshShell.Run("IEXPLORE.EXE") WScript.Sleep 2000 WshShell.AppActivate "about:blank-Microsoft Internet Explorer" WshShell.SendKeys "+{TAB}" WshShell.SendKeys "http://mp3.baidu.com" WScript.Sleep 800 WshShell.SendKeys "{ENTER}" WScript.Sleep 3000 WshShell.SendKeys "white flag" WScript.Sleep 800 WshShell.SendKeys "{ENTER}" ‘本文来自: 脚本之家(www.jb51.net) 详细出处参考： ‘http://www.jb51.net/article/14776.htm

windows下的tail工具

Leave a Comment / Linux/Unix/Windows / January 19, 2009 January 19, 2009

不知道谁开发的，很好用。请下载

一个监控TCP数据包的工具：tcpmon

Leave a Comment / Computer Theory / January 19, 2009 January 19, 2009

这个工具可以拦截到指定地址和指定端口的数据包，很好用的

为什么要用JMS CONNECTOR？如何用？

Leave a Comment / Architecture / January 19, 2009 January 19, 2009

通过JMS API，可以直接连接JMS Resource Provider，为什么还要通过JCA的方式，搞出一个JMS CONNECTOR？因为：文档说：JMS CONNECTOR提供一些附加价值: transaction, pooling,signed-on 如果用了JMS CONNECTOR，应该注意啥？文档说：when using the JMS Connector, the application need not (and in general should not) directly look up or use any RP resources.

JCA基本概念

Leave a Comment / Java / January 19, 2009 January 19, 2009

干什么用的？用于连接J2EE COMPOMENT与其他EIS系统（如ERP），使两者之前可以交互。比如, 通过连接器扩展MDB，使它能够处理任何message provider的消息，包括非JMS的message provider 它具体是什么东西？它是一个Resouce Adapter，即把其他EIS系统适配成可以让J2EE组件直接访问的东西，类似于 JDBC DRIVER 那它怎么玩的？用 ra.xml, *-ra.xml描述，然后部署到j2ee server里运行（可以作为stand-alone的应用来部署，也可以嵌入到其他EAR中运行）