java根据方法名动态调用invoke方法！

 public class Activity {

     public void deal(String name, long id) {

         System.out.println(name + id + "进来了！");
     }

     public static void main(String[] args) throws NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {

         long id = 1001L;
         String name = "张三";
         Activity activity = new Activity();
         Method method = activity.getClass().getMethod("deal", String.class, long.class);
         method.invoke(activity, name, id);
     }
 }