安裝

以JDK1.6.0_43為例

下載jdk-6u43-linux-x64.bin，http://www.oracle.com/technetwork/java/javase/downloads/index.html

增加可執行權限 chmod +x?jdk-6u43-linux-x64.bin，

執行 ./jdk-6u43-linux-x64.bin 生成目錄jdk1.6.0_43

拷貝到/usr/share下，mv?jdk1.6.0_43 /usr/share

另外，jdk-6u43-linux-x64.bin將所有文件解壓縮到當前目錄的jdk$verison_$update目錄，

jdk-6u43-linux-x64-rpm.bin解壓縮生成rpm包，用rpm -ivh命令安裝

配置環境變量

在/etc/profile下增加

# set Java environment

JAVA_HOME=/usr/share/jdk1.6.0_43

PATH=$JAVA_HOME/bin:$PATH

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

export JAVA_HOME

export PATH

export CLASSPATH

測試

[root@localhost ~]# echo $JAVA_HOME

/usr/share/jdk1.6.0_43

[root@localhost ~]# echo $PATH

/usr/share/jdk1.6.0_43/bin:/usr/lib64/qt-3.3/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

[root@localhost ~]# echo $CLASSPATH

.:/usr/share/jdk1.6.0_43/lib/dt.jar:/usr/share/jdk1.6.0_43/lib/tools.jar

[root@localhost ~]# java -version

java version "1.6.0_43"

Java(TM) SE Runtime Environment (build 1.6.0_43-b01)

Java HotSpot(TM) 64-Bit Server VM (build 20.14-b01, mixed mode)