1.確認是否安裝jdk
java -version
2.卸載java
第一步
第二步
以下都是安裝步驟:
下載百度云:
http://pan.baidu.com/s/1kViNTgN
下載地址:
http://download.oracle.com/otn-pub/java/jdk/8u144-b01/090f390dda5b47b9b721c7dfaa008135/jdk-8u144-linux-x64.rpm
1.8jdk
mkidr /home/tools -p
cd?/home/tools
rz?jdk-8u144-linux-x64.rpmà上傳送后直接復制下面的命令運行
rpm?-ivh?jdk-8u144-linux-x64.rpm
ln?-s?/usr/java/jdk1.8.0_144/?/usr/java/jdk
echo?'export?JAVA_HOME=/usr/java/jdk'?>>/etc/profile
echo?'export?PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH'?>>/etc/profile
tail?-2?/etc/profile
.?/etc/profile