2

3

4

5

6

7

8

9

10

11

12

13

14

public static void test5()throws Exception{

        Class<Person> personClass = Person.class;

        Person person = personClass.newInstance();

        //得到setName方法

        Method method = personClass.getDeclaredMethod("setName", String.class);

        //调用访问权限检查

        if(!method.isAccessible()){

            method.setAccessible(true);

        }

        //调用setName，为name赋值

        Object object = method.invoke(person, "wangwu");

        System.out.println(person);

        System.out.println(object);

    }