centos 5.6安装及配置JDK环境变量

<b>1、下载及安装jdk</b>

cd /usr/local

wget http://download.oracle.com/otn-pub/java/jdk/6u31-b04/jdk-6u31-linux-i586.bin

chmod 755 jdk-6u31-linux-i586.bin

./jdk-6u31-linux-i586.bin

rm -rf jdk-6u31-linux-i586.bin

<b>2、</b><b>配置jdk环境变量</b>

<b>1</b><b>）配置jdk：</b>

vi /etc/profile

export JAVA_HOME=/usr/local/jdk1.6.0_31

export PATH=$PATH:$JAVA_HOME/bin

export MANPATH=$JAVA_HOME/man

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

mv /usr/bin/java /usr/bin/java.default

ln -s /usr/local/jdk1.6.0_31/bin/java /usr/bin/java

source /etc/profile

<b>2</b><b>）验证java环境是否生效</b>

java –version<b></b>

java version "1.6.0_31"

Java(TM) SE Runtime Environment (build 1.6.0_31-b04)

Java HotSpot(TM) Client VM (build 20.6-b01, mixed mode, sharing)<b></b>