Exception in thread main Java.lang.UnsopportedClassVersionError solution

Let me give you an account of the background:

(1) write the code of the notebook JDK version is 1.8, packaged jar is running normally;

(2) The version of the server (target) that is packaged as a jar running is 1.6;

Install (1) packaged jar package on the server, double-click or Java-jar **.jar command can not be used normally, whether the environment variable or double-click the settings (Reference blog) have tried, in the use of the command line appeared in the problem of abnormal error, "Exception in thread Main Java.lang.UnsopportedClassVersionError "only to know that the JDK version of the two machines is inconsistent, as shown in the following figure.

Solution:

1, modify the JDK version of the Code editing machine, 2, reinstall the server JDK version. The 1th approach is easy to implement

(1) eclipse--Select the project to export, right click to select Properties

(2) In the Java Compiler (Java compiler) to modify the JDK version, my default version is 1.8, change it to 1.6 (consistent with the server version), click OK, repackaged into a jar package, and then put on the server does not appear above the problem.