redhat linux卸载默认的openjdk与安装sun的jdk - graybull's Blog

redhat linux卸载默认的openjdk与安装sun的jdk

graybull posted @ 2013年4月15日 19:12 in Unix/Linux with tags jdk java linux install , 11771 阅读

redhat enterprise linux 6.1系统中默认安装了openjdk,可是我想用的是sun的jdk。

  • 卸载openjdk
  • 安装sun的jdk
  • 配置环境变量

 

卸载openjdk

1) 查看openjdk的包

# rpm -qa | grep openjdk

# rpm -qa | grep java

2)卸载

#rpm -qa| grep openjdk|xargs rpm -e --nodeps

#rpm -e --nodeps java-*-gcj-*.x86_64

安装sun的jdk

到sun的官方网站下载jdk的rpm包,然后安装:

#rpm -ivh jdk-*.rpm

配置环境变量

可修改配置文件/etc/profile,在该文件最后添加:

 

export JAVA_HOME=/usr/java/jdk1.7.0_15
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib
#source /etc/profile   
 
使得配置生效。

 

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