Linux下JDK的安装

同学说他们将要做Linux下的java开发了，周末无聊，搭建一下开发环境，打发时间.

环境说明：

OS：Red Hat Enterprise Linux AS release 4 (Nahant Update 5)

JDK：1.5.0_22下载路径http://java.sun.com/javase/downloads/5u22/jdk

建立java用户

[root@oak ~]# useradd java

修改用户密码

[root@oak ~]# passwd java

Changing password for user java.

New UNIX password:

BAD PASSWORD: it is too short

Retype new UNIX password:

passwd: all authentication tokens updated successfully.

建立java安装目录

[root@oak usr]# mkdir java

[root@oak usr]# chown java:java java

将jdk安装文件放到/usr/java目录下并加上执行权限

开始安装

[java@oak java]$ ./jdk-1_5_0_22-linux-i586.bin

Sun Microsystems, Inc.  Binary Code License Agreement

for the JAVA 2 PLATFORM. STANDARD EDITION DEVELOPMENT KIT 5.0

SUN  MICROSYSTEMS,  INC.  ("SUN") IS WILLING TO LICENSE  THE

SOFTWARE  IDENTIFIED  BELOW TO YOU ONLY  UPON THE  CONDITION

THAT YOU ACCEPT ALL OF THE TERMS  CONTAINED  IN THIS  BINARY

CODE  LICENSE  AGREEMENT  AND  SUPPLEMENTAL   LICENSE  TERMS

(COLLECTIVELY   "AGREEMENT").  PLEASE  READ  THE   AGREEMENT

CAREFULLY.  BY USING  THE SOFTWARE YOU  ACKNOWLEDGE THAT YOU

HAVE READ THE TERMS AND  AGREE TO THEM. IF YOU ARE  AGREEING

TO THESE TERMS ON BEHALF OF A COMPANY OR OTHER LEGAL ENTITY,

YOU REPRESENT THAT YOU HAVE THE LEGAL  AUTHORITY TO BIND THE

LEGAL  ENTITY   TO THESE TERMS.  IF  YOU  DO NOT  HAVE  SUCH

AUTHORITY, OR IF YOU DO  NOT WISH TO BE BOUND  BY THE TERMS,

THEN YOU MUST NOT USE THE SOFTWARE ON THIS SITE OR ANY OTHER

MEDIA ON WHICH THE SOFTWARE IS CONTAINED.

…….

……………

For inquiries please contact:  Sun Microsystems,  Inc., 4150

Network  Circle,  Santa  Clara,   California  95054,  U.S.A.

(LFI#143333/Form. ID#011801)

Do you agree to the above license terms? [yes or no]

yes

设定环境变量

[java@oak ~]$ vi .bash_profile

# .bash_profile

# Get the aliases and functions

if [ -f ~/.bashrc ]; then

        . ~/.bashrc

fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin:/usr/java/jdk1.5.0_22/bin

export JAVA_HOME=/usr/java/jdk1.5.0_22

export CLASS_PATH=/usr/java/jdk1.5.0_22/lib

export PATH

unset USERNAME

测试是java是否安装成功

[java@oak ~]$ su – java（让环境变量生效）

Password:

[java@oak ~]$ java

[java@oak ~]$ javac

[java@oak ~]$ java -version

java version "1.5.0_22"

Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_22-b03)

Java HotSpot(TM) Client VM (build 1.5.0_22-b03, mixed mode, sharing)

若上面的三个输入正常说明安装成功.

若要使用Tomcat （Tomcat: 5.5.28下载链接http://tomcat.apache.org/download-55.cgi）直接解解压就可以.如（我解压到了/usr/目录下）

Tomcat启动：

[java@oak ~]$ cd /usr/tomcat5.5.28/bin/

[java@oak bin]$ sh startup.sh

Using CATALINA_BASE:   /usr/tomcat5.5.28

Using CATALINA_HOME:   /usr/tomcat5.5.28

Using CATALINA_TMPDIR: /usr/tomcat5.5.28/temp

Using JRE_HOME:        /usr/java/jdk1.5.0_22

Using CLASSPATH:       /usr/tomcat5.5.28/bin/bootstrap.jar

访问：

http://192.168.55.3:8080/