centos配置数据源和java环境配置

---恢复内容开始---

一：前言

     今天送走了一位同事，看着别人走勾起了我蠢蠢欲动的心啊，但是我知道，我不能那么的任性，我是men，这几天难得的清闲，所以我就弄一弄linux，昨天把网给配通了，今天配置下数据源来下载jdk，tomcat等软件，一步一步的来吧。Go！

二：数据源的配置

   配置数据源的地方是在"/etc/yum.repos.d",所以我们用 cd /etc/yum.repos.d进入到这个目录下，用ls命令可以看到如下：

其中，CentOS-Base.repo就是需要配置的数据源，我们再操作linux的文件是一般是先备份的，所以可以看到我这里有个备份文件"CentOS-Base.repo.bak",

把里面的东西删除，加入如下的配置：

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#

[base]
name=CentOS-$releasever - Base - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#released updates
[updates]
name=CentOS-$releasever - Updates - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - 163.com
baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

配置完这些就可以下载jdk和tomcat了

用如下命令

wget http://download.oracle.com/otn-pub/java/jdk/7u75-b13/jdk-7u75-linux-x64.tar.gz?AuthParam=1422600482_6166cf9e13056ea25feb3b0057ba49c3-------下载jdk

在去apache的官网找到tomcat的下载路径下载 tomcat，

三：安装命令

   我用的是SecureCRT来连接虚拟机的，所以我再这里面需要安装rz的命令，安装不下

（1）rz命令安装： yum install -y lrzsz用yum命令直接进行安装。我是在网上搜了下，看见有先下载在进行安装的，wget http://www.ohse.de/uwe/releases/lrzsz.tar.gz

 （2）tar zxvf jdk-7u75-linux-x64.tar.gz解压后 我的解压目录为/usr/local/soft下面，所以配置如下

配置好了执行这个命令：source /etc/profile，使得其立刻生效，此时在执行java或者java -version就可以看到

四：总结

  　　今天终于走出了第一步，把java的环境和数据源给配置好了，感觉很不错，努力继续，同事中午走了，突然少了一个人，觉得好像很怎么怎么，天下没有不散的宴席啊，这条路上还真的是需要坚定啊。Go！