[CentOS] Javaインストール手順

CentOSでのJavaインストール手順を記載

Linux用のJDKをダウンロード
http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
　→本環境は64bitなので、64bitをダウンロード

ダウンロードしたJDKを「/usr/java」に移動する。

[root@localhost share]# mv jdk-7u79-linux-x64.tar.gz /usr/java/jdk-7u79-linux-x64.tar.gz

1	[root@localhost share]# mv jdk-7u79-linux-x64.tar.gz /usr/java/jdk-7u79-linux-x64.tar.gz

移動しました。

[root@localhost share]# cd /usr/java/
[root@localhost java]# pwd
/usr/java
[root@localhost java]# ls
jdk-7u79-linux-x64.tar.gz

[root@localhost share]# cd /usr/java/

[root@localhost java]# pwd

/usr/java

[root@localhost java]# ls

jdk-7u79-linux-x64.tar.gz

解凍します。

[root@localhost java]# tar zxvf jdk-7u79-linux-x64.tar.gz

1	[root@localhost java]# tar zxvf jdk-7u79-linux-x64.tar.gz

解凍できました。

jdk1.7.0_79/db/bin/setNetworkClientCP.bat
jdk1.7.0_79/db/bin/dblook
jdk1.7.0_79/db/bin/NetworkServerControl
jdk1.7.0_79/db/bin/setEmbeddedCP
jdk1.7.0_79/db/bin/stopNetworkServer.bat
jdk1.7.0_79/db/bin/NetworkServerControl.bat
jdk1.7.0_79/db/bin/sysinfo
jdk1.7.0_79/db/bin/ij
jdk1.7.0_79/db/bin/setNetworkServerCP
jdk1.7.0_79/db/bin/setEmbeddedCP.bat
jdk1.7.0_79/db/bin/ij.bat
jdk1.7.0_79/db/bin/dblook.bat
jdk1.7.0_79/db/bin/sysinfo.bat
jdk1.7.0_79/db/bin/setNetworkClientCP
jdk1.7.0_79/db/bin/derby_common.bat
jdk1.7.0_79/db/bin/startNetworkServer.bat
jdk1.7.0_79/db/bin/startNetworkServer
jdk1.7.0_79/db/bin/setNetworkServerCP.bat
jdk1.7.0_79/db/bin/stopNetworkServer
jdk1.7.0_79/db/README-JDK.html
jdk1.7.0_79/db/NOTICE
jdk1.7.0_79/README.html
jdk1.7.0_79/THIRDPARTYLICENSEREADME.txt
[root@localhost java]#

jdk1.7.0_79/db/bin/setNetworkClientCP.bat

jdk1.7.0_79/db/bin/dblook

jdk1.7.0_79/db/bin/NetworkServerControl

jdk1.7.0_79/db/bin/setEmbeddedCP

jdk1.7.0_79/db/bin/stopNetworkServer.bat

jdk1.7.0_79/db/bin/NetworkServerControl.bat

jdk1.7.0_79/db/bin/sysinfo

jdk1.7.0_79/db/bin/ij

jdk1.7.0_79/db/bin/setNetworkServerCP

jdk1.7.0_79/db/bin/setEmbeddedCP.bat

jdk1.7.0_79/db/bin/ij.bat

jdk1.7.0_79/db/bin/dblook.bat

jdk1.7.0_79/db/bin/sysinfo.bat

jdk1.7.0_79/db/bin/setNetworkClientCP

jdk1.7.0_79/db/bin/derby_common.bat

jdk1.7.0_79/db/bin/startNetworkServer.bat

jdk1.7.0_79/db/bin/startNetworkServer

jdk1.7.0_79/db/bin/setNetworkServerCP.bat

jdk1.7.0_79/db/bin/stopNetworkServer

jdk1.7.0_79/db/README-JDK.html

jdk1.7.0_79/db/NOTICE

jdk1.7.0_79/README.html

jdk1.7.0_79/THIRDPARTYLICENSEREADME.txt

[root@localhost java]#

環境パスの設定を行います。
環境パスの設定を行う。

[root@localhost java]# vi /etc/profile

1	[root@localhost java]# vi /etc/profile

以下を追加

HISTSIZE=1000
if [ "$HISTCONTROL" = "ignorespace" ] ; then
    export HISTCONTROL=ignoreboth
else
    export HISTCONTROL=ignoredups
fi

export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL
# ADD Java
export JAVA_HOME=/usr/java/jdk1.7.0_79
export JRE_HOME=$JAVA_HOME/jre
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=.:$JAVA_HOME/jre/lib:$JAVA_HOME/lib:$JAVA_HOME/lib/tools.jar


# By default, we want umask to get set. This sets it for login shell
# Current threshold for system reserved uid/gids is 200
# You could check uidgid reservation validity in

HISTSIZE=1000

if [ "$HISTCONTROL" = "ignorespace" ] ; then

export HISTCONTROL=ignoreboth

else

export HISTCONTROL=ignoredups

export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL

# ADD Java

export JAVA_HOME=/usr/java/jdk1.7.0_79

export JRE_HOME=$JAVA_HOME/jre

export PATH=$PATH:$JAVA_HOME/bin

export CLASSPATH=.:$JAVA_HOME/jre/lib:$JAVA_HOME/lib:$JAVA_HOME/lib/tools.jar

# By default, we want umask to get set. This sets it for login shell

# Current threshold for system reserved uid/gids is 200

# You could check uidgid reservation validity in

以下コマンドで反映

[root@localhost java]# source /etc/profile

1	[root@localhost java]# source /etc/profile

以下コマンドを入力して、Javaバージョンの確認（インストールされたJavaであればOK）

[root@localhost java]# java -version
java version "1.7.0_79"
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)

[root@localhost java]# java -version

java version "1.7.0_79"

Java(TM) SE Runtime Environment (build 1.7.0_79-b15)

Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)

終了☆