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How to run the executable JAR file with a specific configuration?

My code can be run in Eclipse with the run configuration " 9001 12.123.23.43 9001 "

Now export the executable jar file and hope to run it in cmd

When use "java -jar test.jar 9001 12.123.23.43 9001", it shows error: Picture of error in cmd so is that command right?

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The UnsupportedClassVersionError error means that you are trying to run your code with a version of Java older than the one you used to compile it.

Version 52.0 is Java 8 so you are trying to run the code with Java 7 or earlier.

Either run the code with Java 8 or change the compilation settings in Eclipse.

There is lots more discussion about this in this Stack Overflow question.

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