install jdk in ubuntu
2014-01-12 20:21
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unbuntu10下默认是安装了openjdk的,不过这个jdk问题比较多,因为你甚至无法启动Eclipse,所以还是需要自己安装jdk的。
1.下载jdk6
jdk6下载地址为:http://download.java.net/jdk6/,选择文件dk-6u23-ea-bin-b03-linux-i586-****.bin,
2.将jdk6放在某一路径下,修改它的权限,让它可以运行
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
sudo chmod u+x jdk-6u23-ea-bin-b03-linux-i586-18_oct_2010.bin
3.安装jdk6
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
./jdk-6u23-ea-bin-b03-linux-i586-18_oct_2010.bin
4.修改环境变量
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
sudo vi /etc/environment
将里面的变量设置为:
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/java/jdk1.6.0_23/bin"
CLASSPATH=.:/usr/local/java/jdk1.6.0_23/lib
JAVA_HOME=/usr/local/java/jdk1.6.0_23
保存退出。
5.使环境变量生效
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
sudo source /home/ghoul/.bashrc
设置环境变量的方法很多,也可以直接去修改.bashrc文件。
6.设置默认jdk
因为ubnuntu默认安装了openjdk,所以需要设置默认成jdk6
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
sudo update-alternatives --install /usr/bin/java java /usr/local/java/jdk1.6.0_23/bin/java 300
sudo update-alternatives --install /usr/bin/javac javac /usr/local/java/jdk1.6.0_23/bin/javac 300
update-alternatives --config java
此时系统会提示选择jdk版本,清选择jdk6即可。
7.测试
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
java -version
系统输入:
java version "1.6.0_23-ea"
Java(TM) SE Runtime Environment (build 1.6.0_23-ea-b03)
Java HotSpot(TM) Server VM (build 19.0-b09, mixed mode)
经以上步骤,可以顺利的安装jdk,并且顺利的启动Eclipse。
reference:
http://forum.ubuntu.org.cn/viewtopic.php?t=183803
1.下载jdk6
jdk6下载地址为:http://download.java.net/jdk6/,选择文件dk-6u23-ea-bin-b03-linux-i586-****.bin,
2.将jdk6放在某一路径下,修改它的权限,让它可以运行
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
sudo chmod u+x jdk-6u23-ea-bin-b03-linux-i586-18_oct_2010.bin
3.安装jdk6
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
./jdk-6u23-ea-bin-b03-linux-i586-18_oct_2010.bin
4.修改环境变量
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
sudo vi /etc/environment
将里面的变量设置为:
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/java/jdk1.6.0_23/bin"
CLASSPATH=.:/usr/local/java/jdk1.6.0_23/lib
JAVA_HOME=/usr/local/java/jdk1.6.0_23
保存退出。
5.使环境变量生效
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
sudo source /home/ghoul/.bashrc
设置环境变量的方法很多,也可以直接去修改.bashrc文件。
6.设置默认jdk
因为ubnuntu默认安装了openjdk,所以需要设置默认成jdk6
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
sudo update-alternatives --install /usr/bin/java java /usr/local/java/jdk1.6.0_23/bin/java 300
sudo update-alternatives --install /usr/bin/javac javac /usr/local/java/jdk1.6.0_23/bin/javac 300
update-alternatives --config java
此时系统会提示选择jdk版本,清选择jdk6即可。
7.测试
Java代码
![](http://javapub.iteye.com/images/icon_star.png)
java -version
系统输入:
java version "1.6.0_23-ea"
Java(TM) SE Runtime Environment (build 1.6.0_23-ea-b03)
Java HotSpot(TM) Server VM (build 19.0-b09, mixed mode)
经以上步骤,可以顺利的安装jdk,并且顺利的启动Eclipse。
reference:
http://forum.ubuntu.org.cn/viewtopic.php?t=183803
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