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
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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