I have developed an application using Eclipse IDE. After creating the application I exported the project in jar format. When I am trying to run this jar file, I get the error: Unable to load main class. Please Help.
When you are exporting your project as a jar (see this SO question ), you must specify your main class in the export Jar wizard.
This should work always:
java -cp MyJar.jar pkg.name.MyClass
I'd prefer this anyway because it causes less classpath trouble compared to the java -jar
way of starting a java application.
You need to create a runnable jar file. From Eclipse 3.4 you can do that by choosing Export, Java, Runnable Jar File. If you also want to include dependencies have a look at the Fat Jar plug-in .
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.