package com.wzh.test.beanutils;

import java.lang.reflect.InvocationTargetException;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.HashMap;

import java.util.Map;

import org.apache.commons.beanutils.BeanUtils;

import org.apache.commons.beanutils.ConversionException;

import org.apache.commons.beanutils.ConvertUtils;

import org.apache.commons.beanutils.Converter;

import org.apache.commons.beanutils.locale.converters.DateLocaleConverter;

import org.junit.Test;

//使用BeanUtils操作Bean属性（第三方）

public class Demo1 {

	@Test

	public void test1() throws IllegalAccessException,

			InvocationTargetException {

		Person p = new Person();

		BeanUtils.setProperty(p, "name", "victor");

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

	}

	@Test

	public void test2() throws IllegalAccessException,

			InvocationTargetException {

		Person p = new Person();

		// 自动将String转为int 支持8种基本数据类型

		BeanUtils.setProperty(p, "age", "23");

		// 默认不支持时间转换

		BeanUtils.setProperty(p, "Birthday", "2012-3-1");

		System.out.println(p.getAge());

		System.out.println(p.getBirthday());

	}

	@Test

	public void test3() throws IllegalAccessException,

			InvocationTargetException {

		// 为了让日期赋到Bean的Birthday属性上，我们给BeanUtils注册一个日期转换器(敲入代码未起作用，需检查)

		// 方法1.

		ConvertUtils.register(new Converter() {

			@Override

			public Object convert(Class type, Object value) {

				if (value == null)

					return null;

				if (!(value instanceof String)) {

					System.out.println("不是日期类型");

					throw new ConversionException("不是日期类型");

				}

				String str = (String) value;

				if (str.trim().equals(str)) {

					return null;

				}

				SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");

				try {

					return df.parse(str);

				} catch (ParseException e) {

					throw new RuntimeException(e);// 异常链不能断

				}

			}

		}, Date.class);

		// ConvertUtils.register(new DateLocaleConverter(), Date.class);

		Person p = new Person();

		// 自动将String转为int 支持8种基本数据类型

		BeanUtils.setProperty(p, "birthday", "2012-12-12");

		System.out.println(p.getBirthday());

	}

	@Test

	public void test4() throws IllegalAccessException,

			InvocationTargetException {

		Map map = new HashMap();

		map.put("name", "aa");

		map.put("birthday", "2012-1-1");

		ConvertUtils.register(new DateLocaleConverter(), Date.class);

		Person p = new Person();

		// 自动将String转为int 支持8种基本数据类型

		BeanUtils.populate(p, map);//用Map集合中的值填充到Bean的属性

		System.out.println(p.getBirthday());

	}

}

package com.wzh.test.beanutils;

import java.util.Date;

public class Person {

	public Person() {

		super();

		// TODO Auto-generated constructor stub

	}

	private String name;

	private String age;

	private Date birthday;

	public String getName() {

		return name;

	}

	public void setName(String name) {

		this.name = name;

	}

	public String getAge() {

		return age;

	}

	public void setAge(String age) {

		this.age = age;

	}

	public Date getBirthday() {

		return birthday;

	}

	public void setBirthday(Date birthday) {

		this.birthday = birthday;

	}

}