Linux下安装JDK 环境

Linux下安装JDK

系统环境

[[email protected] ~]# file /sbin/init

/sbin/init: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped

[[email protected] ~]# cat /etc/redhat-release

CentOS release 6.5 (Final)

[[email protected] ~]#

安装文件为 jdk-6u45-linux-x64.bin  \\这是64位的环境

mkdir /usr/java  \\创建Java目录，将jdk-6u45-linux-x64.bin拷贝到该目录下

执行 chmod 777 jdk-6u45-linux-x64.bin   \\ 使其具有执行权限

执行 ll jdk-6u45-linux-x64.bin  \\确认其是否具有+x权限

[[email protected] ~]# cd /usr/java/

[[email protected] java]# pwd

/usr/java

[[email protected] java]# ll jdk-6u45-linux-x64.bin

-rwxrwxrwx. 1 root root 72087592 Dec  7 09:48 jdk-6u45-linux-x64.bin

[[email protected] java]# ./jdk-6u45-linux-x64.bin \\安装在当前目录下

[[email protected] java]# ls

jdk1.6.0_45  jdk-6u45-linux-x64.bin  \\ 会看到jdk1.6.0_45目录

[[email protected] java]#

编辑 vi /etc/profile 末尾添加路径变量如下

JAVA_HOME=/usr/java/jdk1.6.0_45 \\ /usr/java 这是指定安装路径

PATH=$PATH:$JAVA_HOME/bin:$JAVA_HOME/jre/bin

CLASSPATH=.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib/:$CLASSPATH

export JAVA_HOME CLASSPATH PATH

然后 logout 重新登录

执行 java -version 会看到

[[email protected] ~]# java -version

java version "1.6.0_45"

Java(TM) SE Runtime Environment (build 1.6.0_45-b06)

Java HotSpot(TM) 64-Bit Server VM (build 20.45-b01, mixed mode)

[[email protected] ~]#

环境就创建好了