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Tomcat搭建

程序员文章站 2024-03-25 16:12:04
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1.环境准备

规划节点:

节点IP

主机名

节点

192.168.100.11

tomcat

Tomcat

使用VMWare Workstation软件安装CentOS 7.2操作系统,镜像使用提供的CentOS-7-x86_64-DVD-1511.iso(其他版本也可以)

关闭防火墙并设置开机不自启,配置SElinux规则

[aaa@qq.com ~]# systemctl stop firewalld.service
[aaa@qq.com ~]# systemctl disable firewalld.service 
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
[aaa@qq.com ~]# setenforce 0

2.修改主机名

使用hostnamectl命令修改主机名:

[aaa@qq.com ~]# hostnamectl set-hostname tomcat
[aaa@qq.com ~]# su
[aaa@qq.com ~]#

3.安装JDK

JDK的下载:

将提供的安装包JDK安装包和Tomcat安装包。通过CRT上传JDK到/usr/local/src/目录下

JDK安装:

部署Tomcat环境需要JDK软件环境,我们进入到/usr/local/src/目录下,解压刚刚上传的jdk将解压后的文件移动到/usr/local/目录下改名为jdk1.8,然后使用ls命令查看下/usr/local/目录下是否有jdk1.8目录

[aaa@qq.com ~]# cd /usr/local/src/
[aaa@qq.com src]# tar zxf jdk-8u211-linux-x64.tar.gz 
[aaa@qq.com src]# mkdir /usr/local/jdk1.8
[aaa@qq.com src]# mv jdk1.8.0_211/*  /usr/local/jdk1.8
[aaa@qq.com src]# ls /usr/local/
bin  etc  games  include  jdk1.8  lib  lib64  libexec  sbin  share  src

4.修改环境变量

设置环境变量,编辑/etc/profile文件,并使其立即生效

[aaa@qq.com src]# vi /etc/profile

//将一下内容添加到文件底部

JAVA_HOME=/usr/local/jdk1.8/
JAVA_BIN=/usr/local/jdk1.8/bin
JRE_HOME=/usr/local/jdk1.8/jre
PATH=$PATH:/usr/local/jdk1.8/bin:/usr/local/jdk1.8/jre/bin
CLASSPATH=/usr/local/jdk1.8/jre/lib:/usr/local/jdk1.8/lib:/usr/local/jdk1.8/jre/lib/charsets.jar
[aaa@qq.com src]# source /etc/profile

5.检查JDK安装情况

配置完成环境变量后,使用java -version命令检查是否安装成功,如果显示结果带有java version "1.8.0_211"字样和我们解压的jdk-8u211-linux-x64.tar.gz包的版本相对应,则证明安装成功

[aaa@qq.com src]# java -version
java version "1.8.0_211"
Java(TM) SE Runtime Environment (build 1.8.0_211-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.211-b12, mixed mode)

这里有可能出现的不是上面的这种,而是如下:

[aaa@qq.com src]# java -version
openjdk version "1.8.0_242"
OpenJDK Runtime Environment (build 1.8.0_242-b08)
OpenJDK 64-Bit Server VM (build 25.242-b08, mixed mode)

如果发现不是自己安装的JDK,这是因为系统自带OpenJDK或者以前安装过OpenJDK。使用witch命令,查看现在Java的所在目录

[aaa@qq.com src]# which java
/usr/bin/java

如果结果为/usr/bin/java则说明这是系统自带的OpenJDK。这时,我们为了实验的一致性,把原来的Java目录重命名为java_bak,并使用source命令再次使环境变量生效,然后使用java -verison命令查看是否有java version "1.8.0_211"字样

[aaa@qq.com src]# mv /usr/bin/java /usr/bin/java_bak
[aaa@qq.com src]# source /etc/profile
[aaa@qq.com src]# java -version
java version "1.8.0_211"
Java(TM) SE Runtime Environment (build 1.8.0_211-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.211-b12, mixed mode)

6.安装Tomcat

解压Tomcat软件包,将解压后的文件移动到/usr/local/tomcat目录下,并命名为tomcat

[aaa@qq.com ~]# cd /usr/local/src/
[aaa@qq.com src]# tar zxf apache-tomcat-9.0.21.tar.gz 
[aaa@qq.com src]# mkdir /usr/local/tomcat
[aaa@qq.com src]# mv apache-tomcat-9.0.21/*  /usr/local/tomcat

7.启动Tomcat

因解压的包是二进制包,不用我们去编译,使用/usr/local/tomcat/bin/startup.sh这个命令启动Tomcat

[aaa@qq.com src]# /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/jdk1.8
Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
Tomcat started.

8.测试

用netstat命令来监听java相关服务端口,查看是否有以下端口存在(8009、8080、8005),如果存在则证明Tomcat服务启动成功

[aaa@qq.com src]# netstat -lnpt | grep java 
tcp6       0      0 :::8009                 :::*                    LISTEN      49228/java          
tcp6       0      0 :::8080                 :::*                    LISTEN      49228/java          
tcp6       0      0 127.0.0.1:8005          :::*                    LISTEN      49228/java

然后打开浏览器,在地址栏中输入http://IP:8080/(这里的IP为你虚拟机的IP地址),可以看到Tomcat的默认页面

Tomcat搭建