您可以将扩展名与java jar关联，文件名将作为 args [0] 它不会那么简单。我建议你尝试一个你好世界程序。 ;）

You can associate an extension with a java jar and the file name will be passed as args[0] It doesn't get much simpler than that. I suggest you try it with a "hello world" program. ;)