centos安装tomcat

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1.安装JDk
官网地址http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html，
下载jdk-7u80-linux-x64.tar.gz，上传到/usr/local/src目录，然后解压，命令如下：

# cd /usr/local/src# tar zxvf jdk-7u80-linux-x64.tar.gz# mv jdk1.7.0_80 /usr/local/jdk1.7

然后设置环境变量，操作如下：
# vi /etc/profile //在末尾输入以下内容

JAVA_HOME=/usr/local/jdk1.7      JAVA_BIN=/usr/local/jdk1.7/binJRE_HOME=/usr/local/jdk1.7/jrePATH=$PATH:/usr/local/jdk1.7/bin:/usr/local/jdk1.7/jre/binCLASSPATH=/usr/local/jdk1.7/jre/lib:/usr/local/jdk1.7.0_80/lib:/usr/local/jdk1.7/jre/lib/charsets.jar

# source /etc/profile //使生效
# java -version //检测设置是否正确
显示如下内容，则说明配置正确
java version “1.7.0_80”
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)

2.安装tomcat

# cd /usr/local/src# wget http://mirrors.hust.edu.cn/apache/tomcat/tomcat-7/v7.0.81/bin/apache-tomcat-7.0.81.tar.gz# tar zxvf apache-tomcat-7.0.81.tar.gz# mv apache-tomcat-7.0.81 /usr/local/tomcat

启动tomcat

# cd /usr/local/tomcat/bin# ./startup.sh

Using CATALINA_BASE: /usr/local/tomcat
Using CATALINA_HOME: /usr/local/tomcat
Using CATALINA_TMPDIR: /usr/local/tomcat/temp
Using JRE_HOME: /usr/local/jdk1.7
Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Tomcat started.

查看是否启动成功，命令如下：
# ps aux | grep tomcat //看是否有监听端口，Java相关进程
# netstat -lntp | grep java//正常会有三个端口8009，8005和8080，
//其中8080为提供Web服务的端口，8005为管理端口，8009为第三方服务调用的端口
//比如httpd和tomcat结合时会用到

设置开机启动

# echo  "/usr/local/tomcat/bin/startup.sh" >>/etc/rc.d/rc.local# chmod a+x /etc/rc.d/rc.local

浏览器地址栏中输入：http://39.108.218.252:8080/，可以看到默认页面

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