RedHat5.4 JDK安装步骤

yanglgzh

　　1.下载jdk http://www.oracle.com/technetwork/java/javase/downloads/jdk6downloads-1902814.html
　　2.上传到linux下

• [root@localhost ~]# rz
  
• rz waiting to receive.
  
• Starting zmodem transfer.  Press Ctrl+C to cancel.
  
• Transferring jdk-6u29-linux-i586-rpm.bin...
  
•   100%   78780 KB 3751 KB/s 00:00:21       0 Errors
  

　　3.赋予执行权限

• [root@localhost ~]# chmod +x jdk-6u29-linux-i586-rpm.bin
  

　　4.安装

• [root@localhost ~]# ./jdk-6u29-linux-i586-rpm.bin
  
• Unpacking...
  
• Checksumming...
  
• Extracting...
  
• UnZipSFX 5.50 of 17 February 2002, by Info-ZIP (Zip-Bugs@lists.wku.edu).
  
•   inflating: jdk-6u29-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.
  

　　5.验证安装是否成功（好吧，显示还是系统自带的jdk，有些软件识别不到系统的，所有有时自己安装还是很有必要的）

• [root@localhost ~]# java -version
  
• java version "1.4.2"
  
• gij (GNU libgcj) version 4.1.2 20080704 (Red Hat 4.1.2-46)
  
• 
  
• Copyright (C) 2006 Free Software Foundation, Inc.
  
• This is free software; see the source for copying conditions.  There is NO
  
• warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  

　　6.配置环境变量
系统默认把jdk安装到 /usr/java/jdk1.6.0_29 目录下（找了N次，还是没找到如何把jdk安装到自己指定的目录下）

• [root@localhost ~]# vi /etc/profile
  

　　在文件的末尾添加

• #set Java Environment
  
• export JAVA_HOME=/usr/java/jdk1.6.0_29
  
• export PATH=$JAVA_HOME/bin:$PATH
  
• export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
  

　　执行命令（立即生效命令，否则重启后生效）

• [root@localhost ~]# source /etc/profile
  

　　检验成功与否

• [root@localhost ~]# java -version
  
• java version "1.6.0_29"
  
• Java(TM) SE Runtime Environment (build 1.6.0_29-b11)
  
• Java HotSpot(TM) Client VM (build 20.4-b02, mixed mode, sharing)