1. 使用ftp上传JDK到如下目录 mkdir /home/software
    2. 解压Tomcat压缩包 tar -zxvf apache-tomcat-9.0.24.tar.gz
    3. 将Tomcat放到/usr/local下 mv apache-tomcat-9.0.24/ /usr/local/
    4. 启动Tomcat
      1. cd /usr/local/tomcat-frontend/bin/
      2. ./startup.sh