1.Windows 上 安装 apache.

2.将目标文件放置apache htdocs目录下。

3.linux 用命wget htt://192.268.81.189/jdk-6u21-linux-i586.bin

4.#./jdk-6u21-linux-i586.bin 安装

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设置环境变量

通常都喜欢用export命令直接在shell下设置

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export JAVA_HOME=/opt/jdk1.x
export JRE_HOME=/opt/jdk1.x/jre
export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH

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验证

[root@LinuxServer rpm]# echo $JAVA_HOME
/usr/java/j2sdk1.4.2_06/
[root@LinuxServer rpm]# echo $CLASSPATH
/usr/java/j2sdk1.4.2_06/lib/dt.jar:/usr/java/j2sdk1.4.2_06/lib/tools.jar
[root@LinuxServer rpm]# echo $PATH
/usr/java/j2sdk1.4.2_06/bin/:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin
[root@LinuxServer rpm]# JAVA-version
JAVA version "1.4.2_06"