本文详细讲解Linux系统下JDK、Tomcat的安装 Jdk安装： [root@b home]# ls jdk-1_5_0_12-linux-i586-rpm.bin lost+found oracle 1、将jdk进行解压 [root@b home]# ./jdk-1_5_0_12-linux-i586-rpm.bin 2、将解压文件copy到/usr/java下 [root@b home]# cp jdk-1_5_0_12-linux-i586.rpm /usr/java [root@b home]# cd /usr/java 3、进行安装 [root@b java]# rpm -ivh jdk-1_5_0_12-linux-i586.rpm Preparing... (########################################### [100%] package jdk-1.5.0_12-fcs is already italled 4、将环境变量加入到profile中，如果写入到(/etc/profile)对所有用户都生效，如果只对某个用户生效写入到(/home/username/profile)中 export JAVA_HOME = /usr/java/jdk1.5 export PATH = $ATH:$JAVA_HOME/bin:$JAVA_HOME/jre/bin exportCLAATH=.:/usr/java/jdk1.5/lib:/usr/java/jdk1.5/jre/lib:$CLAATH 5、验证安装结果 [root@b java]# java -version -bash: java: command not found 错误原因是环境变量未生效。 [root@b java]# source /etc/profile [root@b java]# java -version java version "1.5.0_12" Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_12-b04) Java Hotot(TM) Client VM (build 1.5.0_12-b04, mixed mode, sharing) 至此安装成功。 jdk下载地址：http://java.sun.com/javase/downloads/index_jdk5.j Tomcat安装： 1、将文件copy到/usr/local下解压安装文件 [root@b local]# tar -zxvf apache-tomcat-5.5.23.tar.gz [root@b local]# ls apache-tomcat-5.5.23 bin games lib man share apache-tomcat-5.5.23.tar.gz etc include libexec in src [root@b local]# cd ~ 2、加入环境变量 [root@b root]# vi .bashrc export JAVA_HOME=/usr/java/jdk1.5.0_12 export CLAATH=$CLAATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$ATH:$HOMR/bin export CATALINA_BASE=/usr/local/apache-tomcat-5.5.23 export CATALINA_HOME=/usr/local/apache-tomcat-5.5.23 3、使环境变量生效 [root@b root]# source .bashrc 4、验证安装结果 [root@b root]# echo $JAVA_HOME /usr/java/jdk1.5.0_12 [root@b root]# echo $CATALINA_HOME /usr/local/apache-tomcat-5.5.23 [root@b root]#