一、安装
创建安装目录，在/usr/java下建立安装路径，并将文件考到该路径下：# mkdir /usr/java
1、jdk-6u11-linux-i586.bin 这个是自解压的文件，在linux上安装如下：# chmod 755 jdk-6u11-linux-i586.bin# ./jdk-6u11-linux-i586.bin （注意，这个步骤一定要在jdk-6u11-linux-i586.bin所在目录下）在按提示输入yes后，jdk被解压。
出现一行字：Do you aggree to the above license terms? [yes or no] 安装程序在问您是否愿意遵守刚才看过的许可协议。当然要同意了，输入"y" 或 "yes" 回车。2、若是用jdk-6u11-linux-i586-rpm.bin 这个也是一个自解压文件，不过解压后的文件是jdk-6u11-linux-i586-rpm 包，执行rpm命令装到linux上就可以了。安装如下：#chmod 755 jdk-6u11-linux-i586-rpm # ./jdk-6u11-linux-i586-rpm .bin# rpm -ivh jdk-6u11-linux-i586-rpm
[root@rac1 opt]# ./jdk-6u43-linux-x64-rpm\(1\).bin Unpacking…Checksumming…Extracting…UnZipSFX 5.50 of 17 February 2002, by Info-ZIP (Zip-Bugs@lists.wku.edu). inflating: jdk-6u43-linux-amd64.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 JavaDBPreparing… ########################################### [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 configurationsupports a browser, the JDK Product Registration form willbe presented. If you do not register, none of this informationwill be saved. You may also register your JDK later byopening the register.html file (located in the JDK installationdirectory) 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…..
[root@rac1 opt]# [root@rac1 opt]# ls10201_client_linux_x86_64.cpio.gz database sun-javadb-client-10.6.2-1.1.i386.rpm sun-javadb-docs-10.6.2-1.1.i386.rpm10201_clusterware_linux_x86_64.cpio.gz jdk-6u43-linux-amd64.rpm sun-javadb-common-10.6.2-1.1.i386.rpm sun-javadb-javadoc-10.6.2-1.1.i386.rpm10201_database_linux_x86_64.cpio jdk-6u43-linux-x64-rpm(1).bin sun-javadb-core-10.6.2-1.1.i386.rpm x642.6.18-164.el5 sun sun-javadb-demo-10.6.2-1.1.i386.rpm[root@rac1 opt]# ll
出现一行字：Do you aggree to the above license terms? [yes or no] 安装程序在问您是否愿意遵守刚才看过的许可协议。当然要同意了，输入"y" 或 "yes" 回车。安装软件会将JDK自动安装到 /usr/java/目录下。二、配置#vi /etc/profile 在里面添加如下内容
export JAVA_HOME=/usr/java/jdk1.6.0_27
export JAVA_BIN=/usr/java/jdk1.6.0_27/bin
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export JAVA_HOME JAVA_BIN PATH CLASSPATH
让/etc/profile文件修改后立即生效 ,可以使用如下命令:# . /etc/profile注意: . 和 /etc/profile 有空格.
export JAVA_HOME=/usr/java/jdk1.6.0_43export JAVA_BIN=/usr/java/jdk1.6.0_43/binexport CLASSPATH=.:$CLASSPATH:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarexport PATH=$PATH:$JAVA_HOME/bin:$ANT_HOME/binexport JRE_HOME=$JAVA_HOME/jre
"/etc/profile" 64L, 1266C written[root@rac1 jdk1.6.0_43]# . /etc/profile[root@rac1 jdk1.6.0_43]# cd [root@rac1 ~]# jajade jar jasper5-setclasspath.sh java javadoc javapjadetex jarsigner jasper5.sh javac javah javaws
重启测试 java -version 屏幕输出: java version "jdk1.6.0_02" Java(TM) 2 Runtime Environment, Standard Edition (build jdk1.6.0_02) Java HotSpot(TM) Client VM (build jdk1.6.0_02, mixed mode)
近朱者赤，近墨者黑
