问Java反射:无需实例化即可调用抽象接口方法

EN

ClassLoader cl = new URLClassLoader(...);
Map c = new HashMap();

File file = new File("test.prj");

c.put("TptApi", cl.loadClass("com.piketec.tpt.api.TptApi"));
c.put("OpenResult", cl.loadClass("com.piketec.tpt.api.OpenResult"));

//The way I did it with 'normal' classes, not applicable with the interface:
//Object target = ((Class) c.get("TptApi")).newInstance();

OpenResult or = (OpenResult)((Class) c.get("TptApi")).getMethod("openProject", new Class[]{File.class}).invoke(target, new Object[]{_file});