http://www.Oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html?

選擇jdk-7u75-linux-x64.rpm?

新建目錄?mkdir /usr/java?

切換到下載目錄 將下載的文件copy到/usr/java? cp jdk-7u75-linux-x64.rpm /usr/java?

切換到/usr/java?修改權限chmod +x jdk-7u75-linux-x64.rpm?

運行rpm -ivh jdk-7u75-linux-x64.rpm

vi /etc/PRofile

在最后添加：?

#set java environment

export JAVA_HOME=/usr/java/jdk1.7.0_75

export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

export PATH=$PATH:$JAVA_HOME/binexport JAVA_HOME CLASSPATH PATH?

保存退出：x?

啟用環境變量配置：source /etc/profile

?建立連接：?

cd /usr/bin

ln -s -f /usr/java/jdk1.7.0_75/jre/bin/java

ln -s -f /usr/java/jdk1.7.0_75/bin/javac?

java -version? javac?