﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>BlogJava-Scott Zone-随笔分类-J2EE</title><link>http://www.blogjava.net/Scott/category/24018.html</link><description>似水流年，勤勉无价</description><language>zh-cn</language><lastBuildDate>Wed, 11 Jul 2007 16:21:47 GMT</lastBuildDate><pubDate>Wed, 11 Jul 2007 16:21:47 GMT</pubDate><ttl>60</ttl><item><title>深入了解Java ClassLoader、Bytecode 、ASM、cglib（转）</title><link>http://www.blogjava.net/Scott/archive/2007/07/11/129698.html</link><dc:creator>Scott.Pan</dc:creator><author>Scott.Pan</author><pubDate>Wed, 11 Jul 2007 13:04:00 GMT</pubDate><guid>http://www.blogjava.net/Scott/archive/2007/07/11/129698.html</guid><wfw:comment>http://www.blogjava.net/Scott/comments/129698.html</wfw:comment><comments>http://www.blogjava.net/Scott/archive/2007/07/11/129698.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Scott/comments/commentRss/129698.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Scott/services/trackbacks/129698.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 一、Java ClassLoader<br><br>1，什么是ClassLoader <br>与 C 或 C++ 编写的程序不同，Java 程序并不是一个可执行文件，而是由许多独立的类文件组成，每一个文件对应于一个 Java 类。 <br>此外，这些类文件并非立即全部都装入内存，而是根据程序需要装入内存。ClassLoader 是 JVM 中将类装入内存的那部分。 <br>而且，Java ClassLoader 就是用 Java 语言编写的。这意味着创建您自己的 ClassLoader 非常容易，不必了解 JVM 的微小细节。<br>&nbsp;&nbsp;<a href='http://www.blogjava.net/Scott/archive/2007/07/11/129698.html'>阅读全文</a><img src ="http://www.blogjava.net/Scott/aggbug/129698.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Scott/" target="_blank">Scott.Pan</a> 2007-07-11 21:04 <a href="http://www.blogjava.net/Scott/archive/2007/07/11/129698.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>J2EE系统的性能浅谈（转）</title><link>http://www.blogjava.net/Scott/archive/2007/07/11/129633.html</link><dc:creator>Scott.Pan</dc:creator><author>Scott.Pan</author><pubDate>Wed, 11 Jul 2007 07:48:00 GMT</pubDate><guid>http://www.blogjava.net/Scott/archive/2007/07/11/129633.html</guid><wfw:comment>http://www.blogjava.net/Scott/comments/129633.html</wfw:comment><comments>http://www.blogjava.net/Scott/archive/2007/07/11/129633.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/Scott/comments/commentRss/129633.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/Scott/services/trackbacks/129633.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 有一个J2EE项目，碰到一些性能问题。客户用LoadRunner测试，十个用户并发测试登录，就导致系统崩溃。经过检查，发现是数据池设置的太小，在IBM  WPS里面设置的数据池缺省是1-10，结果当用5个并发测试的时候，就总是有5个进程在等待数据连接。这样，系统自然通不过测试了。后来把数据池改大了，测试通过，而且速度飞快。&nbsp;&nbsp;<a href='http://www.blogjava.net/Scott/archive/2007/07/11/129633.html'>阅读全文</a><img src ="http://www.blogjava.net/Scott/aggbug/129633.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/Scott/" target="_blank">Scott.Pan</a> 2007-07-11 15:48 <a href="http://www.blogjava.net/Scott/archive/2007/07/11/129633.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>