리눅스(CentOS)에 JDK 설치

CentOS 기준임.

http://www.oracle.com/technetwork/java/javase/downloads/jdk6u37-downloads-1859587.html

Java SE Development Kit 6 Update 37 다운로드 (jdk-6u37-linux-i586-rpm.bin)

/usr/local/src 폴더에 파일을 옮기고 실행권한을 줌

 

 

JDK 설치

# cd /usr/local/src

# chmod 744 jdk-6u37-linux-i586-rpm.bin

# ./jdk-6u37-linux-i586-rpm.bin

Unpacking...

Checksumming...

Extracting....

.

.

Done.

# ll *rpm*

-rwxr--r-- 1 root root 68604823 Nov  5 10:43 jdk-6u37-linux-i586-rpm.bin

-rw-r--r-- 1 root root 58433453 Sep 25 05:19 jdk-6u37-linux-i586.rpm

-rw-r--r-- 1 root root   499375 Nov  3  2010 sun-javadb-client-10.6.2-1.1.i386.rpm

-rw-r--r-- 1 root root    14627 Nov  3  2010 sun-javadb-common-10.6.2-1.1.i386.rpm

-rw-r--r-- 1 root root  4080625 Nov  3  2010 sun-javadb-core-10.6.2-1.1.i386.rpm

-rw-r--r-- 1 root root   969861 Nov  3  2010 sun-javadb-demo-10.6.2-1.1.i386.rpm

-rw-r--r-- 1 root root  4865183 Nov  3  2010 sun-javadb-docs-10.6.2-1.1.i386.rpm

-rw-r--r-- 1 root root   201273 Nov  3  2010 sun-javadb-javadoc-10.6.2-1.1.i386.rpm

# yum list | grep jdk

# cd /usr/java

# ll

total 16

lrwxrwxrwx 1 root root   16 Nov  5 10:45 default -> /usr/java/latest

drwxr-xr-x 7 root root 4096 Nov  5 10:45 jdk1.6.0_37

lrwxrwxrwx 1 root root   21 Nov  5 10:45 latest -> /usr/java/jdk1.6.0_37

 

환경변수 설정

# vi /etc/profile

맨 아래쪽에 해당 내용 추가

export JAVA_HOME=/usr/java/default

export PATH=$PATH:$JAVA_HOME/bin

export CLASSPATH=$CLASSPATH:JAVA_HOME/lib

# source /etc/profile

시스템 JDK 등록/설정

# java -version

java version "1.6.0_22"

OpenJDK Runtime Environment (IcedTea6 1.10.4) (rhel-1.24.1.10.4.el5-i386)

OpenJDK Server VM (build 20.0-b11, mixed mode)

오픈JDK로 설정되어있음

# alternatives --install /usr/bin/java java /usr/java/jdk1.6.0_37/bin/java 2

# alternatives --config java

There are 3 programs which provide 'java'.

  Selection    Command

-----------------------------------------------

*+ 1           /usr/lib/jvm/jre-1.6.0-openjdk/bin/java

   2           /usr/lib/jvm/jre-1.4.2-gcj/bin/java

   3           /usr/java/jdk1.6.0_37/bin/java

Enter to keep the current selection[+], or type selection number: 3   <- jdk1.6.0_37 인 번호를 선택

# java -version

java version "1.6.0_37"

Java(TM) SE Runtime Environment (build 1.6.0_37-b06)

Java HotSpot(TM) Server VM (build 20.12-b01, mixed mode)

Java SE로 설정됨