Centos8(7)安装tomcat9以及常见用法

1.安装jdk

tomcat9可以工作在jdk8以上的版本

所以可以安装jdk8或是jdk11

dnf install java-11-openjdk # centos8
yum install java-11-openjdk # centos7

2.下载最新的tomcat二进制包

打开网站 https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-9/

在这里找到最新版本，进入后进入bin目录

里面有名为 apache-tomcat-XXXX.tar.gz 的文件，右键复制地址

下载并解压

wget https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-9/v9.0.31/bin/apache-tomcat-9.0.31.tar.gz
tar xvf apache-tomcat-9.0.31.tar.gz

移动到安装目录

mv apache-tomcat-9.0.31 /opt/tomcat9

3.常见命令和目录

命令或目录	作用
/opt/tomcat9/bin/startup.sh	启动tomcat
/opt/tomcat9/bin/shutdown.sh	关闭tomcat
/opt/tomcat9/conf/	配置
/opt/tomcat9/logs/	日志
/opt/tomcat9/webapps/	默认应用目录

4.如何选择tomcat版本

下面表格来自tomcat官网

Servlet 规范	JSP 规范	EL 规范	WebSocket 规范	JASPIC 规范	Apache Tomcat 版本	最新版本（2020.2.19）	支持的 Java 版本
4.0	2.3	3.0	1.1	1.1	9.0.x	9.0.31	8 and later
3.1	2.3	3.0	1.1	1.1	8.5.x	8.5.51	7 and later
3.1	2.3	3.0	1.1	N/A	8.0.x (superseded)	8.0.53 (superseded)	7 and later
3.0	2.2	2.2	1.1	N/A	7.0.x	7.0.100	6 and later (7 and later for WebSocket)
2.5	2.1	2.1	N/A	N/A	6.0.x (archived)	6.0.53 (archived)	5 and later
2.4	2.0	N/A	N/A	N/A	5.5.x (archived)	5.5.36 (archived)	1.4 and later
2.3	1.2	N/A	N/A	N/A	4.1.x (archived)	4.1.40 (archived)	1.3 and later
2.2	1.1	N/A	N/A	N/A	3.3.x (archived)	3.3.2 (archived)	1.1 and later