Ubuntu11.04安装JDK7
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第一步 下载
去下面的地址下载java7的开发包(或者去官方网站下载吧)
http://download.oracle.com/otn-pub/java/jdk/7/jdk-7-linux-i586.tar.gz
第二步 解压
- sudo tar zxvf ./jdk-7-linux-i586.tar.gz -C /usr/lib/jvm
- cd /usr/lib/jvm
- sudo mv jdk1.7.0/ java-7-sun
第三步 修改环境变量
- vim ~/.bashrc
- #加入以下内容
- export JAVA_HOME=/usr/lib/jvm/java-7-sun
- export JRE_HOME=${JAVA_HOME}/jre
- export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
- export PATH=${JAVA_HOME}/bin:$PATH
- #保存后使之生效
- source ~/.bashrc
第四步 配置默认程序
- sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/java-7-sun/bin/java 300
- sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/java-7-sun/bin/javac 300
- sudo update-alternatives --config java
- #如果你的系统中安装了其他的jdk,系统会提示出来,选择jdk7即可
最后 测试效果
- minch@Minch-Ubuntu:/usr/lib/jvm$ java -version
- java version "1.7.0"
- Java(TM) SE Runtime Environment (build 1.7.0-b147)
- Java HotSpot(TM) Server VM (build 21.0-b17, mixed mode)
JDK设置环境变量: http://blog.csdn.net/ichsonx/article/details/8758408
参考:本文来源:http://minc.us/?p=271
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