一、安装jdk
# chmod u+x ./jdk-1_5_0_14-linux-i586-rpm.bin
# ./jdk-1_5_0_14-linux-i586-rpm.bin
二、安装tomcat
tar zxvf apache-tomcat-5.5.25.tar.gz
三、建用户和权限
# useradd tomcat
# passwd tomcat
# chown -R tomcat:tomcat /opt/tomcat (tomcat工作目录)
四、配置jdk和tomcat环境变量
.bashrc
PATH=$PATH:$HOME/bin
export PATH
unset USERNAME
export JAVA_HOME=/opt/j2sdk1.4.2_09
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export TOMCAT_HOME=/opt/tomcatwloa
export USERNAME BASH_ENV PATH
PATH=$PATH:/opt/j2sdk1.4.2_09/bin:/opt/tomcatwloa/bin
五、配置tomcat的admin
<role rolename="tomcat"/>
<role rolename="role1"/>
<role rolename="admin"/>
<user username="tomcat" password="tomcat" roles="tomcat"/>
<user username="role1" password="tomcat" roles="role1"/>
<user username="both" password="null" roles="tomcat,role1"/>
<user username="admin" password="666666" fullName="" roles="admin"/>
六、配置tomcat的连接
七、多个tomcat并行时注意tomcat的端口占用情况
关于epoll使用方法：
参照： http://linux.die.net/man/4/epoll
实例代码：（来自网上某论坛）
#include <pthread.h>
#include <stdio.h>
#include <sys/timeb.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/epoll.h> ......
