Shulou(Shulou.com)06/03 Report--

Download JDK

JDK1.7 download:

Http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

II. Installation

1. Modify file name

[root@master src] # mv jdk-7u79-linux-x64.tar.gz\? AuthParam\ = 1473757361_a54f9f6441c4d0741a68b813b6ab1041 jdk-7u79-linux-x64.tar.gz

two。 Extract the file

[root@master src] # tar zxvf jdk-7u79-linux-x64.tar.gz

3. Move Fil

[root@master src] # mv jdk1.7.0_79 / usr/local/

Third, configure environment variables

1. Edit a file

[root@slave1 local] # vim / etc/profile.d/java.sh

Add the following:

#! / etc/sbin/bash

Export JAVA_HOME=/usr/local/jdk1.7.0_79

Export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

Export PATH=$PATH:$JAVA_HOME/bin

two。 Refresh the file

[root@slave1 local] # source / etc/profile.d/java.sh

3. View (the java version does not do the following for)

[root@master ~] # java-version

Java version "1.7.079"

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

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

4. View installed java

[root@master ~] # yum list | grep java

[root@master ~] # rpm-qa | grep java

5. Uninstall java

[root@master ~] # yum remove java-1.6.0-openjdk* java-1.7.0-openjdk*java-1.8.0-openjdk*

All slave installs JDK

1. Transmit all slave of jdk

[root@master src] # rsync-av / usr/local/jdk1.7.0_79 slave1:/usr/local/

[root@master src] # rsync-av / usr/local/jdk1.7.0_79 slave2:/usr/local/

[root@master src] # rsync-av / usr/local/jdk1.7.0_79 slave3:/usr/local/

[root@master src] # rsync-av / usr/local/jdk1.7.0_79 slave4:/usr/local/

[root@master src] # rsync-av / usr/local/jdk1.7.0_79 slave5:/usr/local/

[root@master src] # rsync-av / usr/local/jdk1.7.0_79 slave6:/usr/local/

two。 Edit configuration file

It's the same as above.

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