- 查看Linux是否自帶的JDK，如有openJDK，則卸載
1 java -version?
?1 rpm -qa | grep -E '^open[jre|jdk]|j[re|dk]'?
- 卸載openjdk
?
1 su root 2 3 yum -y remove java java-1.7.0-openjdk
?
- ?下載oracle jdk
?
1 wget --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie;" "http://download.oracle.com/otn-pub/java/jdk/8u77-b03/jdk-8u77-linux-x64.tar.gz"
- 解壓jdk
1 tar -xzvf jdk-8u77-linux-x64.tar.gz
?
- 移動jdk到/usr/local，建立軟連接
?
1 mv jdk1.8.0_77/ /usr/local
2
3 ln -s /usr/local/jdk1.8.0_77/ /usr/local/jdk ?
?
?
- 編輯/etc/profile
1 vim /etc/profile - 加入jdk的配置
1 JAVA_HOME=/usr/local/jdk 2 PATH=${PATH}:${JAVA_HOME}/bin 3 export JAVA_HOME PATH
- source
1 source /etc/profile - 查看是否安裝jdk成功
1 java -version 
?
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