Linux下安装JDK

可能需要 卸载OpenJDK

1.下载JDK

JDK6最后版本下载地址:

http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-linux-i586-rpm.bin
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-linux-i586.bin
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-linux-x64-rpm.bin
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-linux-x64.bin
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-solaris-i586.sh
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-solaris-i586.tar.Z
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-solaris-sparc.sh
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-solaris-sparc.tar.Z
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-solaris-sparcv9.sh
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-solaris-sparcv9.tar.Z
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-solaris-x64.sh
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-solaris-x64.tar.Z
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-windows-i586.exe
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-windows-x64.exe
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-linux-ia64-rpm.bin
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-linux-ia64.bin
http://download.oracle.com/otn-pub/java/jdk/6u45-b06/jdk-6u45-windows-ia64.exe

下载完成后上传到服务器对应的文件夹下

2.安装JDK

2.1 增加可执行权限并执行

# chmod a+x jdk-6u45-linux-x64.bin
# ./jdk-6u45-linux-x64.bin

2.2 加入环境变量

vi /etc/profile

export JAVA_HOME=/java/jdk1.6.0_45
export CLASSPATH=.:$JAVA_HOME/jre/lib:$JAVA_HOME/lib/tools.jar
export PATH=.:$PATH:$JAVA_HOME/bin

为了使环境变量生效

source /etc/profile
或者
. /etc/profile

3. 查看是否安装成功

java -version