CentOS JDK 설치

리눅스 JDK 설치

1 개요[편집]

  • 리눅스에서도[1] JDK와 JRE는 별도의 패키지이다.
java-버전-openjdk 패키지가 JRE,
java-버전-openjdk-devel 패키지가 JDK라고 생각하면 된다.
  • JDK가 JRE에 의존성이 있다.[2]
yum으로 JDK를 설치하라고 하면 JRE를 먼저 설치한다.

2 설치 확인[편집]

16px-Crystal_Clear_app_xmag.svg.png 리눅스 JDK 설치 확인 문서를 참고하십시오.

3 설치가능 확인[편집]

[root@zetawiki ~]# yum list java*jdk-devel
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Available Packages
java-1.6.0-openjdk-devel.x86_64 1:1.6.0.40-1.13.12.6.el6_8 updates
java-1.7.0-openjdk-devel.x86_64 1:1.7.0.111-2.6.7.2.el6_8 updates
java-1.8.0-openjdk-devel.x86_64 1:1.8.0.101-3.b13.el6_8 updates
→ 1.6, 1.7, 1.8 버전이 설치 가능하다.
→ 여기서는 1.8 버전을 설치한다.

4 설치[편집]

[root@zetawiki ~]# yum install java-1.8.0-openjdk-devel.x86_64
... (생략)
===========================================================================================
Package Arch Version Repository Size
===========================================================================================
Installing:
java-1.8.0-openjdk-devel x86_64 1:1.8.0.101-3.b13.el6_8 updates 10 M
Updating:
libxcb x86_64 1.11-2.el6 base 142 k
Installing for dependencies:
alsa-lib x86_64 1.1.0-4.el6 base 389 k
giflib x86_64 4.1.6-3.1.el6 base 37 k
java-1.8.0-openjdk x86_64 1:1.8.0.101-3.b13.el6_8 updates 197 k
java-1.8.0-openjdk-headless x86_64 1:1.8.0.101-3.b13.el6_8 updates 32 M
jpackage-utils noarch 1.7.5-3.16.el6 base 60 k
libICE x86_64 1.0.6-1.el6 base 53 k
libSM x86_64 1.2.1-2.el6 base 37 k
libXfont x86_64 1.5.1-2.el6 base 145 k
libXtst x86_64 1.2.2-2.1.el6 base 19 k
libfontenc x86_64 1.1.2-3.el6 base 29 k
pkgconfig x86_64 1:0.23-9.1.el6 base 70 k
ttmkfdir x86_64 3.0.9-32.1.el6 base 43 k
tzdata-java noarch 2016f-1.el6 updates 180 k
xorg-x11-font-utils x86_64 1:7.2-11.el6 base 75 k
xorg-x11-fonts-Type1 noarch 7.2-11.el6 base 520 k
Updating for dependencies:
libX11 x86_64 1.6.3-2.el6 base 586 k
libX11-common noarch 1.6.3-2.el6 base 169 k

Transaction Summary
===========================================================================================
Install 16 Package(s)
Upgrade 3 Package(s)

Total download size: 45 M
Is this ok [y/N]: y
... (생략)
Installed:
java-1.8.0-openjdk-devel.x86_64 1:1.8.0.101-3.b13.el6_8

Dependency Installed:
alsa-lib.x86_64 0:1.1.0-4.el6
giflib.x86_64 0:4.1.6-3.1.el6
java-1.8.0-openjdk.x86_64 1:1.8.0.101-3.b13.el6_8
java-1.8.0-openjdk-headless.x86_64 1:1.8.0.101-3.b13.el6_8
jpackage-utils.noarch 0:1.7.5-3.16.el6
libICE.x86_64 0:1.0.6-1.el6
libSM.x86_64 0:1.2.1-2.el6
libXfont.x86_64 0:1.5.1-2.el6
libXtst.x86_64 0:1.2.2-2.1.el6
libfontenc.x86_64 0:1.1.2-3.el6
pkgconfig.x86_64 1:0.23-9.1.el6
ttmkfdir.x86_64 0:3.0.9-32.1.el6
tzdata-java.noarch 0:2016f-1.el6
xorg-x11-font-utils.x86_64 1:7.2-11.el6
xorg-x11-fonts-Type1.noarch 0:7.2-11.el6

Updated:
libxcb.x86_64 0:1.11-2.el6

Dependency Updated:
libX11.x86_64 0:1.6.3-2.el6 libX11-common.noarch 0:1.6.3-2.el6

Complete!

5 설치 확인[편집]

[root@zetawiki ~]# rpm -qa java*jdk-devel
java-1.8.0-openjdk-devel-1.8.0.101-3.b13.el6_8.x86_64
[root@zetawiki ~]# javac -version
javac 1.8.0_101

6 Hello world 테스트[편집]

명령어
echo "public class HelloWorld {" > HelloWorld.java
echo " public static void main(String[] args) {" >> HelloWorld.java
echo " System.out.println(\"Hello, World\");" >> HelloWorld.java
echo " }" >> HelloWorld.java
echo "}" >> HelloWorld.java
javac HelloWorld.java
java HelloWorld
rm -f HelloWorld.java HelloWorld.class
예시
[root@zetawiki ~]# echo "public class HelloWorld {" > HelloWorld.java
[root@zetawiki ~]# echo " public static void main(String[] args) {" >> HelloWorld.java
[root@zetawiki ~]# echo " System.out.println(\"Hello, World\");" >> HelloWorld.java
[root@zetawiki ~]# echo " }" >> HelloWorld.java
[root@zetawiki ~]# echo "}" >> HelloWorld.java
[root@zetawiki ~]# javac HelloWorld.java
[root@zetawiki ~]# java HelloWorld
Hello, World
[root@zetawiki ~]# rm -f HelloWorld.java HelloWorld.class

7 같이 보기[편집]

8 주석[편집]

  1. 이동 윈도우와 마찬가지로
  2. 이동 따라서 JDK만 설치할 수는 없다.

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