Install Tomcat 7 on Centos orRHEL6

Step 1:install JDK 1.7
We use RPM packages
Configuring Environment variables
[Email protected] src]# Vim/etc/profile #在文件末尾添加以下内容
Export java_home=/usr/java/jdk1.7.0_79
Export Java_bin=/usr/java/jdk1.7.0_79/bin
Export Path=${java_home}/bin: $PATH
Export Classpath=.:${java_home}/lib/dt.jar:${java_home}/lib/tools.jar
[[Email protected] ~] Source/etc/profile
[Email protected] src]# java-version #查看
Java Version "1.7.0_79"
Java (TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot (TM) 64-bit Server VM (build 24.79-b02, Mixed mode)

Step 2:download and Unpack Tomcat 7.0.29 (or latest)
We'll install Tomcat 7 under/usr/local

[Email protected] src]# tar-xf apache-tomcat-7.0.62.tar.gz-c/us/local #解压到/usr/local
MV apache-tomcat-7.0.62 Tomcat #便于配置 to prevent the path from having a space error

Step 3:configure Tomcat to Run as a Service.
Vim/etc/init.d/tomcat
And here is the script we'll use
#!/bin/bash
# Description:tomcat Start Stop Restart
# Processname:tomcat
# chkconfig:234 20 80
Java_home=/usr/java/jdk1.7.0_05
Export Java_home
Path= $JAVA _home/bin: $PATH
Export PATH
catalina_home=/usr/share/apache-tomcat-7.0.29

Case $ in
Start
SH $CATALINA _home/bin/startup.sh
;;
Stop
SH $CATALINA _home/bin/shutdown.sh
;;
Restart
SH $CATALINA _home/bin/shutdown.sh
SH $CATALINA _home/bin/startup.sh
;;
Esac
Exit 0
Now, set the "Permissions for your" script to make it executable:
chmod 755 Tomcat
Chkconfig--add Tomcat
Chkconfig--level 2345 Tomcat on
Chkconfig--list Tomcat

Now, let's test our script
Service Tomcat Start
Service Tomcat Stop
Service Tomcat Restart

We should review the Catalina.out log located at/usr/share/apache-tomcat-7.0.29/logs/catalina.out and check for any error S.
More/usr/share/apache-tomcat-7.0.29/logs/catalina.out

Step 4:configuring Tomcat Manager Access.
Vim/usr/local/tomcat/conf/tomcat-users.xml
<role rolename= "Manager-gui"/>
<role rolename= "Admin-script"/>
<role rolename= "Admin-gui"/>
<user username= "pls" password= "pls" roles= "Manager-gui,admin-script,admin-gui"/>

Step 5 (oprtional): Manage Memory Usage Using java_opts.
vim/usr/local/tomcat/bin/catalina.sh
Just add this on the second line
java_opts= "-djava.awt.headless=true-dfile.encoding=utf-8
-server-xms4048m-xmx4048m
-xx:newsize=512m-xx:maxnewsize=512m-xx:permsize=512m
-XX:MAXPERMSIZE=512M-XX:+DISABLEEXPLICITGC "

Step 6 (Optional): How to Run Tomcat using minimally privileged (non-root) User.

Groupadd Tomcat
Useradd-g tomcat-d/usr/local/tomcat Tomcat
CHOWN-RF Tomcat.tomcat/usr/local/tomcat

Step 7 (Optional): How to Run Tomcat on Port non-root User.
To run services below Port 1024x768 as a user other than root, you can add the following to your IP tables:
Iptables-t nat-a prerouting-p tcp-m tcp--dport 80-j REDIRECT--to-ports 8080
Iptables-t nat-a prerouting-p udp-m UDP--dport 80-j REDIRECT--to-ports 8080

Install Tomcat 7 on Centos orRHEL6