centos7安裝hadoop僞分佈式系統(2)之02安裝jdk

1查看系統掛載oop df -mhadoop 2建立掛載目錄變量 mkdir softsjdk 3建立軟鏈接配置 sudo ln -s /home/hadoop/bigdater/jdk /usr/local/jdkdate 刪除軟鏈接di sudo rm -rf /usr/local/jdk環境變量 4配置環境變量sudo JAVA_HOME=/usr/local/jdk系統 CLASSPATH

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