Go语言视频零基础入门到精通

luowei010101

从http://www.oracle.com中下载jdk：jdk-6u38-linux-x64.bin，存放到/usr/java目录

1、给权限：sudo chmod u+x/home/luowei/myapps/jdk-6u38-linux-x64.bin

2、安装jdk：sudo /home/luowei/myapps/jdk-6u38-linux-x64.bin

3、设置环境变量：sudo gedit /etc/environment

#set java environment

JAVA_HOME=/home/luowei/myapps/jdk/jdk1.6.0_38

PATH=$PATHJAVA_HOME/bin

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

export JAVA_HOME PATH CLASSPATH

4、使上面设置的环境变量生效：#source /etc/environment

5、设置ubuntu的默认jdk，原因使因为ubuntu默认有openjdk：

Install new java source in system:

sudo update-alternatives --install /usr/bin/javac javac /home/luowei/myapps/jdk/jdk1.6.0_38/bin/javac 1

sudo update-alternatives --install /usr/bin/java java /home/luowei/myapps/jdk/jdk1.6.0_38/bin/java 1

sudo update-alternatives --install /usr/bin/javaws javaws /home/luowei/myapps/jdk/jdk1.6.0_38/bin/javaws 1

Choose default java:

sudo update-alternatives --config javac

sudo update-alternatives --config java

sudo update-alternatives --config javaws

选择对应的jdk编号，回车


6、查看当前jdk版本：java -version


来源:Ubuntu安装sun jdk过程