CentOS作为服务器系统，稳定的状态成为良好的口碑。现在模拟服务器环境安装配置Java、Tomcat并对Tomcat做优化自启动。

系统：CentOS 6.9
Java：jdk-8u121-linux-i586.rpm
Tomcat：apache-tomcat-8.5.13.tar.gz

安装Java

#查看系统自带的Java并对应删除

[root@localhost ~]# rpm -qa | grep java
java_cup-0.10k-5.el6.i686
tzdata-java-2017b-1.el6.noarch
java-1.5.0-gcj-1.5.0.0-29.1.el6.i686
[root@localhost ~]# rpm -e --nodeps java-1.5.0-gcj-1.5.0.0-29.1.el6.i686

#下载好JDK文件，查看rpm包详细信息

[root@localhost 下载]# rpm -qip jdk-8u121-linux-i586.rpm 
Name        : jdk1.8.0_121                 Relocations: /usr/java 
Version     : 1.8.0_121                         Vendor: Oracle Corporation
Release     : fcs                           Build Date: 2016年12月13日 星期二 08时28分49秒
Install Date: (not installed)               Build Host: sca00boj.us.oracle.com
Group       : Development/Tools             Source RPM: jdk1.8.0_121-1.8.0_121-fcs.src.rpm
Size        : 279013566                        License: http://java.com/license
Signature   : (none)
Packager    : Java Software <jre-comments@java.sun.com>
URL         : URL_REF
Summary     : Java Platform Standard Edition Development Kit
Description :
The Java Platform Standard Edition Development Kit (JDK) includes both
the runtime environment (Java virtual machine, the Java platform classes
and supporting files) and development tools (compilers, debuggers,
tool libraries and other tools).

The JDK is a development environment for building applications, applets
and components that can be deployed with the Java Platform Standard
Edition Runtime Environment.

#看到默认安装目录是Relocations: /usr/java
继续阅读“CentOS6下安装Java+Tomcat优化并自启动”