package com.wzh.test.introspector;

import java.beans.BeanInfo;

import java.beans.IntrospectionException;

import java.beans.Introspector;

import java.beans.PropertyDescriptor;

import java.lang.reflect.Method;

import org.junit.Test;

//使用内省API操作Bean的属性

public class Demo1 {

	@Test

	public void test() throws Exception{

//		BeanInfo info=Introspector.getBeanInfo(Person.class);

//		BeanInfo info=Introspector.getBeanInfo(Class.forName("com.wzh.test.introspector.Person"));

		BeanInfo info=Introspector.getBeanInfo(Person.class,Object.class);

		PropertyDescriptor[] pds=info.getPropertyDescriptors();

		for(PropertyDescriptor pd : pds){

			System.out.println(pd.getName());

		}

	}

	@Test

	public void test2() throws Exception{

		Person p=new Person();

		PropertyDescriptor pd=new PropertyDescriptor("age", Person.class);

		Method m=pd.getWriteMethod();

		m.invoke(p,45);

		System.out.println("getAge:"+p.getAge());

	}

	//获取当前操作的属性的类型

	@Test

	public void test3() throws IntrospectionException{

		Person p=new Person();

		PropertyDescriptor pd=new PropertyDescriptor("age", Person.class);

		System.out.println(pd.getPropertyType());

	}

}