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In this article, the editor introduces in detail "how to install and configure jdk1.7 under linux". The content is detailed, the steps are clear, and the details are handled properly. I hope this article "how to install and configure jdk1.7 under linux" can help you solve your doubts.

0) go to the official website and drop down at jdk

Wget http://download.oracle.com/otn-pub/java/jdk/7/jdk-7-linux-x64.tar.gz-O jdk-7-linux-x64.tar.gz

1) installation

Tar-zxvf jdk-7-linux-x64.tar.gz

2) move to the specified directory. The reason for using a soft connection below is to facilitate future upgrades.

Mv jdk1.7.0 / Application/

Ln-s / Application/jdk1.7.0 / Application/java

Ln-s / Application/java/bin/java / sbin/java

3) set environment variables

Echo "export JAVA_HOME=/Application/java" > / etc/profile.d/java_env.sh echo "export JRE_HOME=/Application/java/jre" > > / etc/profile.d/java_env.sh

Echo "export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH" > > / etc/profile.d/java_env.sh

Echo "export PATH=.:$JAVA_HOME/bin:$JRE_HOME/bin:$PATH" > > / etc/profile.d/java_env.sh

Set to an executable file

Chmod + x / etc/profile.d/java_env.sh

Make the environment variable take effect on the current ssh client

Source / etc/profile.d/java_env.sh

4) Verification

It is better to delete the previous java.

Root@vs-3310-099:/Application/java# java-version java version "1.7.0" Java (TM) SE Runtime Environment (build 1.7.0-b147) Java HotSpot (TM) 64-Bit Server VM (build 21.0-b17, mixed mode)

End

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