1.安装jdk
tomcat9可以工作在jdk8及之后的版本
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/
Centos8(7)安装tomcat9和常见用法1.png
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| 3.1 | 2.3 | 3.0 | 1.1 | N/A | 8.0.x (superseded) | 8.0.53 (superseded) | 7 and later |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 |
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