从jar(不是main)调用Java类方法 [英] Call java class method from jar (not main)

问题描述

是否可以通过命令行在jar文件中调用类的特定方法(不是main)?

Is this possible to call a specific method (other than main) of a class in a jar file from command line?

推荐答案

如果您正在谈论从命令行运行Java代码，则不会.

If you are talking about running Java code from the command-line, then no.

您可以指定一个类名，但不能指定要调用的方法，该类名必须始终为public static void main(String[] argv).

You can specify a class name, but not which method to call, that always has to be public static void main(String[] argv).

您可以做的是编写一个帮助程序类(或诸如BeanShell之类的脚本)来完成该操作.

What you could do is write a helper class (or script like BeanShell) to do that.

java -cp theJar.jar;.  my.helper.WrapperClass theClassToCall theMethodtoCall arg1 arg2

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