CentOS7卸载OpenJDK安装Oracle JDK
2014-10-13 12:40
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CentOS7卸载OpenJDK安装Oracle JDK
1.查看JDK安装版本
3.卸载OpenJDK安装包
5.安装JDK1.7
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)2.查找OpenJDK安装包
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_644.下载JDK1.7安装包(jdk-7u65-linux-x64.rpm)
5.安装JDK1.7
[root@localhost 下载]#yum install jdk-7u65-linux-x64.rpm6.配置环境变量
[root@localhost ~]#vim /etc/profile在文件末尾添加如下内容
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/profile7.查看安装结果
[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)至此已经完成了JDK1.7的安装
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