Red Hat Enterprise Linux 5 安装JDK6

 

Red Hat Enterprise Linux 5 安装JDK

1、 在官网下载，我下载的是jdk-6u30-linux-i586-rpm.bin文件。放在/home目录下。

2、 先删除系统原先jdk1.4，系统自带jdk。用java –version查看系统自带jdk版本。

[root@localhost /]# rpm -qa | grep gcj

java-1.4.2-gcj-compat-1.4.2.0-40jpp.112

卸载命令

[root@localhost /]# rpm -e --nodeps java-1.4.2-gcj-compat-1.4.2.0-40jpp.112

3、 赋执行权限

[root@localhost home]# chmod +x jdk-6u30-linux-i586-rpm.bin

4、 执行安装

[root@localhost home]# ./jdk-6u30-linux-i586-rpm.bin

出现以下安装界面

Unpacking...

Checksumming...

Extracting...

UnZipSFX 5.50 of 17 February 2002, by Info-ZIP ([e-mail]).

  inflating: jdk-6u30-linux-i586.rpm  

  inflating: sun-javadb-common-10.6.2-1.1.i386.rpm  

  inflating: sun-javadb-core-10.6.2-1.1.i386.rpm  

  inflating: sun-javadb-client-10.6.2-1.1.i386.rpm  

  inflating: sun-javadb-demo-10.6.2-1.1.i386.rpm  

  inflating: sun-javadb-docs-10.6.2-1.1.i386.rpm  

  inflating: sun-javadb-javadoc-10.6.2-1.1.i386.rpm  

Preparing...                ########################################### [100%]

   1:jdk                    ########################################### [100%]

Unpacking JAR files...

        rt.jar...

        jsse.jar...

        charsets.jar...

        tools.jar...

        localedata.jar...

        plugin.jar...

        javaws.jar...

        deploy.jar...

Installing JavaDB

Preparing...                ########################################### [100%]

   1:sun-javadb-common      ########################################### [ 17%]

   2:sun-javadb-core        ########################################### [ 33%]

   3:sun-javadb-client      ########################################### [ 50%]

   4:sun-javadb-demo        ########################################### [ 67%]

   5:sun-javadb-docs        ########################################### [ 83%]

   6:sun-javadb-javadoc     ########################################### [100%]

 

Java(TM) SE Development Kit 6 successfully installed.

 

Product Registration is FREE and includes many benefits:

* Notification of new versions, patches, and updates

* Special offers on Oracle products, services and training

* Access to early releases and documentation

 

Product and system data will be collected. If your configuration

supports a browser, the JDK Product Registration form will

be presented. If you do not register, none of this information

will be saved. You may also register your JDK later by

opening the register.html file (located in the JDK installation

directory) in a browser.

 

For more information on what data Registration collects and 

how it is managed and used, see:

http://java.sun.com/javase/registration/JDKRegistrationPrivacy.html

 

Press Enter to continue.....

 

 

Done.

安装成功，默认安装在/usr/java目录下。

5、 配置环境变量

[root@localhost home]# vi /etc/profile

打开文件后按i键，在文件最后插入以下配置

#JAVA

export JAVA_HOME=/usr/java/jdk1.6.0_30

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

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

按esc 键 

输入:wq 保存退出。 

再使配置生效 source /etc/profile

6、 查看java版本

[root@localhost /]# java –version

java version "1.6.0_30"

Java(TM) SE Runtime Environment (build 1.6.0_30-b12)

Java HotSpot(TM) Client VM (build 20.5-b03, mixed mode, sharing)

到此为止安装完毕。