1.查看操作系统上是否已经安装了apache服务器:httpd rpm -qa | grep httpd
2.查看服务是否启动:ps -ef | gerp httpd
3.清除tomcat：yum remove httpd
4.安装Tomcat:yum install httpd -y
5.查询是否安装成功:yum list lnstalled |gerp httpd 代表安装成功
6.停止：httpd-k stop
7.查看配置文件：/etc/httpd/conf/httpd.conf
8.启动：service httpd start
9.IP访问