java – 如何在linux上升级Tomcat

我当前运行的Tomcat如下

Tomcat Version : Apache Tomcat/5.5.36
Servlet Specification Version : 2.4
JSP version : 2.0

我需要改成它

Tomcat Version : Apache Tomcat/8.0.14
Servlet Specification Version : 3.1
JSP version : 2.3

我下载了Tomcat版本8,我有以下内容,如何运行Tomcat 8并使其成为服务器的默认设置？

root@server [/opt]# ls
./                           cpanel/                    pcre/
../                          curlssl/                   php_with_imap_client/
apache-tomcat-8.0.18/        jdk1.7.0_75/               suphp/
apache-tomcat-8.0.18.tar.gz  jdk-7u75-linux-x64.tar.gz  xml2/

我尝试了以下命令,但失败了.

root@server [/opt/apache-tomcat-8.0.18/bin]# ./startup.sh
Cannot find apache-tomcat-8.0.18/bin/setclasspath.sh
This file is needed to run this program

在?/ .bashrc

# .bashrc

# User specific aliases and functions

alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'

# Source global definitions
if [ -f /etc/bashrc ]; then
        . /etc/bashrc
fi
JAVA_HOME="/usr/lib/jvm/jre-1.7.0-openjdk.x86_64"
export JAVA_HOME
PATH=$JAVA_HOME/bin:$PATH
export PATH

export CATALINA_HOME="apache-tomcat-8.0.18"

Java版本

java -version
java version "1.7.0_75"
OpenJDK Runtime Environment (rhel-2.5.4.0.el6_6-x86_64 u75-b13)
OpenJDK 64-Bit Server VM (build 24.75-b04,mixed mode)
root@server [/opt/apache-tomcat-8.0.18/bin]# 

O / S

Linux server.myproject.com 2.6.32-220.13.1.el6.x86_64 #1 SMP Tue Apr 17 
23:56:34 BST 2012 x86_64 x86_64 x86_64 GNU/Linux