安装jdk和tomcat



一、安装JDK

1. 下载JDK1.7.79 (jdk-7u79-linux-x64.tar.gz)

http://www.oracle.com/technetwork/java/javase/downloads/index.html

2. 创建java根目录

[root@localhost ~]mkdir /usr/java

3. 把jdk包放到/usr/java

4. tar -zxf jdk-7u79-linux-x64.tar.gz 解压包

5. ls /usr/java会发现jdk1.7.0_79目录

6. 设置JAVA_HOME和PATH

sudo vim /etc/profile

在文件末尾加上

export JAVA_HOME=/usr/java/jdk1.7.0_79
export PATH=$JAVA_HOME/bin:$PATH

:wq保存

source /etc/profile 使更改生效

测试 jdk安装成功

[admin@localhost java]$ java -version
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)

二、安装Tomcat

1. 下载Tomcat8.0.33(apache-tomcat-8.0.33.tar.gz)

http://tomcat.apache.org/download-80.cgi

2. 创建目录sudo mkdir /usr/tomcat

3. cd /usr/tomcat 把包放到这个目录

4. 解压sudo tar -zxf apache-tomcat-8.0.33.tar.gz

5. 创建Start/Stop/Restart 脚本

cd /etc/init.d

sudo vim tomcat

#!/bin/bash
# description: Tomcat Start Stop Restart
# processname: tomcat
# chkconfig: 234 20 80
JAVA_HOME=/usr/java/jdk1.7.0_79
export JAVA_HOME
PATH=$JAVA_HOME/bin:$PATH
export PATH
CATALINA_HOME=/usr/tomcat/apache-tomcat-8.0.33

case $1 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

:wq保存

6. 更改tomcat脚本属性，使其可执行

sudo chmod 755 tomcat

7. 设置随机启动

sudo chkconfig --add tomcat

sudo chkconfig tomcat on

8. 测试启动脚本

[admin@localhost init.d]$ sudo service tomcat start
Using CATALINA_BASE:   /usr/tomcat/apache-tomcat-8.0.33
Using CATALINA_HOME:   /usr/tomcat/apache-tomcat-8.0.33
Using CATALINA_TMPDIR: /usr/tomcat/apache-tomcat-8.0.33/temp
Using JRE_HOME:        /usr/java/jdk1.7.0_79
Using CLASSPATH:       /usr/tomcat/apache-tomcat-8.0.33/bin/bootstrap.jar:/usr/tomcat/apache-tomcat-8.0.33/bin/tomcat-juli.jar
Tomcat started.

三、配置Tomcat

1. Tomcat用户配置

出于安全考虑，默认Tomcat不开通后台管理员，特别建议在产品环境不应该有后台用户。但我们要实现Maven的自动部署，所以要开通manage-script用户。

进入Tomcat目录

cd /usr/tomcat/apache-tomcat-8.0.33

cd conf

sudo vim tomcat-users.xml

在tomcat-users标签之间加入

<role rolename="manager-script"/>
<user username="tomcat" password="tomcat" roles="manager-script"/>

：wq保存

2. 出于安全考虑用non-root运行tomcat

[admin@localhost conf]$ sudo groupadd tomcat
[admin@localhost conf]$ sudo useradd -s /bin/bash -g tomcat tomcat

改变tomcat 目录所属

[admin@localhost tomcat]$ sudo chown -Rf tomcat.tomcat apache-tomcat-8.0.33

改变启动脚本，使其在tomcat用户下运行

#!/bin/bash
# description: Tomcat Start Stop Restart
# processname: tomcat
# chkconfig: 234 20 80
JAVA_HOME=/usr/java/jdk1.7.0_79
export JAVA_HOME
PATH=$JAVA_HOME/bin:$PATH
export PATH
CATALINA_HOME=/usr/tomcat/apache-tomcat-8.0.33

case $1 in
start)
/bin/su tomcat $CATALINA_HOME/bin/startup.sh
;;
stop)
/bin/su tomcat $CATALINA_HOME/bin/shutdown.sh
;;
restart)
/bin/su tomcat $CATALINA_HOME/bin/shutdown.sh
/bin/su tomcat  $CATALINA_HOME/bin/startup.sh
;;
esac
exit 0

3. 开通8080防火墙端口

sudo vim /etc/sysconfig/iptables

-A INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT

sudo service iptables restart