ubuntu12.04 安装java jdk6
2014-05-13 14:23
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1. 去官网下载JDK6
2.在/usr/lib新建java目录:sudo mkdir /usr/lib/java
3.复制文件到该新建目录:sudo cp /home/kanner/下载/jdk-6u31-linux-i586.bin /usr/lib/java
4.赋予该文件以可运行的权限:sudo chmod u+x jdk-6u31-linux-i586.bin
5.运行该文件:sudo ./jdk-6u38-linux-i586.bin
6.配置环境变量:sudo vi /etc/profile,在文件末尾添加环境变量:
export JAVA_HOME=/usr/lib/java/jdk1.6.0_31
export JRE_HOME=/usr/lib/java/jdk1.6.0_31
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
export CLASSPATH=$CLASSPATH:.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
7.令修改后的文件立即生效:. /etc/profile
8.修改系统默认jdk,并立即生效:
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/java/jdk1.6.0_31/bin/java" 300
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/java/jdk1.6.0_31/bin/javac" 300
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/java/jdk1.6.0_31/bin/javaws" 300
sudo update-alternatives --config java
sudo update-alternatives --config javac
sudo update-alternatives --config javaws
9.至此,jdk6安装成功。在终端下用命令java -version查看效果,如下,即表示安装成功:
java version "1.6.0_31"
Java(TM) SE Runtime Environment (build 1.6.0_31-b04)
Java HotSpot(TM) Server VM (build 20.13-b02, mixed mode)
2.在/usr/lib新建java目录:sudo mkdir /usr/lib/java
3.复制文件到该新建目录:sudo cp /home/kanner/下载/jdk-6u31-linux-i586.bin /usr/lib/java
4.赋予该文件以可运行的权限:sudo chmod u+x jdk-6u31-linux-i586.bin
5.运行该文件:sudo ./jdk-6u38-linux-i586.bin
6.配置环境变量:sudo vi /etc/profile,在文件末尾添加环境变量:
export JAVA_HOME=/usr/lib/java/jdk1.6.0_31
export JRE_HOME=/usr/lib/java/jdk1.6.0_31
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
export CLASSPATH=$CLASSPATH:.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
7.令修改后的文件立即生效:. /etc/profile
8.修改系统默认jdk,并立即生效:
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/java/jdk1.6.0_31/bin/java" 300
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/java/jdk1.6.0_31/bin/javac" 300
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/java/jdk1.6.0_31/bin/javaws" 300
sudo update-alternatives --config java
sudo update-alternatives --config javac
sudo update-alternatives --config javaws
9.至此,jdk6安装成功。在终端下用命令java -version查看效果,如下,即表示安装成功:
java version "1.6.0_31"
Java(TM) SE Runtime Environment (build 1.6.0_31-b04)
Java HotSpot(TM) Server VM (build 20.13-b02, mixed mode)
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