CentOS7卸载OpenJDK安装Oracle JDK
1.查看JDK安装版本
- [root@localhost ~]#java -version
- java version *1.7.0_51*
- OpenJDK Runtime Environment ( rhel-2.4.5.5.el7-x86_64 u51-b31)
- OpenJDK 64-Bit Server VM (build 24.51-b03, mixed mode)
- rpm -qa | grep openjdk
- java-1.7.0-openjdk-headless-1.7.0.51-2.4.5.5.el7.x86_64
- java-1.7.0-openjdk-1.7.0.51-2.4.5.5.el7.x86_64
3.卸载OpenJDK安装包
- [root@localhost ~]#yum -y remove java-1.7.0-openjdk-headless.x86_64
- [root@localhost ~]#yum -y remove java-1.7.0-openjdk.x86_64
5.安装JDK1.7
- [root@localhost 下载]#yum install jdk-7u65-linux-x64.rpm
- [root@localhost ~]#vim /etc/profile
- JAVA_HOME=/usr/java/jdk1.7.0_65
- PATH=$JAVA_HOME/bin:$PATH
- CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
- export JAVA_HOME
- export PATH
- export CLASSPATH
- [root@localhost ~]#source /etc/profile
- [root@localhost ~]#java -version
- java version "1.7.0_65"
- Java(TM) SE Runtime Environment (build 1.7.0_65-b17)
- Java HotSpot(TM) 64-Bit Server VM (build 24.65-b04.mixed mode)
阅读原文：http://blog.csdn.net/zitong_ccnu/article/details/40041533
