使用“java”命令Centos运行.jar文件

Question

I'm trying to run a .jar file on my centos box, but it says "java: command not found".

What's the best or easiest way to solve this? I was hoping for a yum command but not sure that that will exist for java?

Answer 1

Apparently some versions of CentOS doesn't come with a JVM installed due to some licensing restriction. See HowTo Install Java on CentOS 4 and CentOS 5 for instructions.

Answer 2

You can use such command to check if Java is available in your repository:

yum list | grep java

It should return something like that:

java-1.6.0-openjdk
java-1.6.0-sun

If such package exists you can install it using such command (run it as the root user):

yum install java-1.6.0-openjdk

Answer 3

Either the JRE is not installed or, more likely, its location is not included in your PATH environment variable. If the java executable is not in your PATH , you would need to use the full path & filename to execute it.