Red Hat Enterprise Linux 4服务器上安装jdk1.6
1:下载JDK6.0
地址:http://java.sun.com/javase/downloads/index.jsp
我下载的是jdk-6u11-linux-i586.bin
2:用cd命令转到放jdk文件的目录下释放压缩包jdk1.6.0_11,
3:用命令:sh jdk-6u11-linux-i586.bin ,一直按回车,直到出现
Do you agree to the above license terms? [yes or no] 输入:yes
4.完成释放,运行ls 会发现当前目录下生成一个文件夹:jdk1.6.0_011
5.更改名字,执行命令: mv ./jdk1.6.0_11 ./jdk6.0. 再执行ls,发现名字已经改为jdk6.0.(这一步不做也可以,改名字主要是为了方便)
6. 更改字符集为utf-8:
[root@qudee jdk6.0]# export LANG=en_US
[root@qudee jdk6.0]# export LC_ALL=en_US
7.执行命令: ./bin/java –version 发现已经成功,
java version "1.6.0_11"
Java(TM) SE Runtime Environment (build 1.6.0_11-b05)
Java HotSpot(TM) Server VM (build 1.6.0_011-b05, mixed mode)
再执行java –version
java version "1.4.2"
gcj (GCC) 3.4.6 20060404 (Red Hat 3.4.6-3)
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.
出错了,原因是环境变量没设置好.
8.设置环境变量,执行命令vi /etc/profile
出现编辑框,在
HOSTNAME=`/bin/hostname`
HISTSIZE=1000
底下添加环境变量的路径:
JAVA_HOME=/opt/java/jdk6.0
CLASS_PATH=$JAVA_HOME/lib:JAVA_HOME/jre/lib:JAVA_HOME/lib/tools.jar:$CLASS_PATH
PATH=$JAVA_HOME/bin:$PATH
export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE INPUTRC 在此行后面添加
export CLASS_PATH JAVA_HOME
OK! 按Esc 推出编辑框,再按Shift+;,输入wq (写入 保存并推出)
重新启动系统。
9.检查是否安装成功,输入命令: java –version
出现信息:
java version "1.6.0_02"
Java(TM) SE Runtime Environment (build 1.6.0_02-b05)
Java HotSpot(TM) Server VM (build 1.6.0_02-b05, mixed mode)
说明安装成功!