基本可看的资料：
http://www.ibm.com/developerworks/cn/opensource/os-lo-apache-tomcat/index.html
http://www.javazy.com/contentex/200641293233.shtml
进一步调整：
http://internet.blog.enorth.com.cn/article/252340.shtml
http://tomcat.apache.org/connectors-doc/reference/workers.html
还有：
http://www.iteye.com/topic/53610 用mod_proxy更好
http://neptune.iteye.com/blog/146591 window下apache配置