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This article mainly shows you "how to achieve a machine to run two JDK", the content is easy to understand, clear, hope to help you solve doubts, the following let the editor lead you to study and learn "how to achieve a machine to run two JDK" this article.

One machine runs two JDK

Because of the system, now we have to run two JBOSS on a server, one is to run JDK1.4, the other is to run JDK1.5. Running two JBOSS on one machine has been done, and the rest is the question of how to run two JDK. I have been looking for N on the Internet for a long time, but I can't find a solution. Suddenly saw the run.bat file in JBOSS, carefully studied the contents, and found the following fields: if not "% JAVA_HOME%" = "" goto ADD_TOOLS. I don't understand the syntax of the script, but I can guess the meaning of the statement: if JAVA_HOME== "", skip to ADD_TOOLS. Then look for ADD_TOOLS and find

: ADD_TOOLS

Set JAVA=%JAVA_HOME%binjava. The original JDK version of JBOSS is set here, it looks for JAVA_HOME from the environment variables, so we can force JAVA_HOME here.

So add the following statement to the if not "% JAVA_HOME%" = "" goto ADD_TOOLS:

Set JAVA_HOME=C:j2sdk1.4.2_06.

Echo JAVA:% JAVA_HOME%

Start JBOSS. Find that the console prints out "JAVA: C:j2sdk1.4.2_06". Haha, the JDK running version of JBOSS is set up successfully, and a big problem has finally been solved.

The above is all the contents of the article "how to run two JDK on one machine". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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