PropertyUtils的使用(转)

1、定义两个bean类

（１）  第一个

 

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class Person {
	private String username;
	private int age;
	private float stature;//身高
	private boolean sex;//性别
	@SuppressWarnings("unchecked")
	private List list = new ArrayList();
	private String[] friendsNames;
	private Map<String, String> maps = new HashMap<String, String>();
	private Address address;
	
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public float getStature() {
		return stature;
	}
	public void setStature(float stature) {
		this.stature = stature;
	}
	public boolean isSex() {
		return sex;
	}
	public void setSex(boolean sex) {
		this.sex = sex;
	}
	@SuppressWarnings("unchecked")
	public List getList() {
		return list;
	}
	@SuppressWarnings("unchecked")
	public void setList(List list) {
		this.list = list;
	}
	public Address getAddress() {
		return address;
	}
	public void setAddress(Address address) {
		this.address = address;
	}
	public Map<String, String> getMaps() {
		return maps;
	}
	public void setMaps(Map<String, String> maps) {
		this.maps = maps;
	}
	public String[] getFriendsNames() {
		return friendsNames;
	}
	public void setFriendsNames(String[] friendsNames) {
		this.friendsNames = friendsNames;
	}
}

 

 （２）第二个

 

import java.util.List;

public class Address {
	private String email;
	private List<String> telephone;
	public String getEmail() {
		return email;
	}
	public void setEmail(String email) {
		this.email = email;
	}
	public List<String> getTelephone() {
		return telephone;
	}
	public void setTelephone(List<String> telephone) {
		this.telephone = telephone;
	}
}

 ３、测试类

 

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.beanutils.PropertyUtils;

public class PersonTest {
	@SuppressWarnings("unchecked")
	public static void main(String[] args) {
		Person person = new Person();
		try {
			//simple property
			PropertyUtils.setSimpleProperty(person, "username", "李四");
			PropertyUtils.setSimpleProperty(person, "age", 22);
			PropertyUtils.setSimpleProperty(person, "stature", 173.5f);
			PropertyUtils.setSimpleProperty(person, "sex", new Boolean(false));
			
			//index property
			//List
			List list = new ArrayList();
			list.add("list value 0");
			list.add("list value 1");
			String listValue2 = "new list value 1";
			PropertyUtils.setSimpleProperty(person, "list", list);
			//将list设置到person之后，可以对里面的值进行修改
			PropertyUtils.setIndexedProperty(person, "list[1]", listValue2);

			//数组
			String[] str = {"张三", "王五", "赵钱"};
			person.setFriendsNames(str);
			PropertyUtils.setIndexedProperty(person, "friendsNames[2]", "new赵钱");
			
			//Map
			Map<String, String> map = new HashMap<String, String>();
			map.put("key1", "vlaue1");
			map.put("key2", "vlaue2");
			map.put("key3", "vlaue3");
			person.setMaps(map);
			PropertyUtils.setMappedProperty(person, "maps", "key1", "new value1");
			PropertyUtils.setMappedProperty(person, "maps(key2)", "maps(key2) value");
			
			//nest property
			Address address = new Address();
			address.setEmail("[e-mail]");
			List<String> telephoneList = new ArrayList<String>();
			telephoneList.add("12345678911");
			telephoneList.add("92345678911");
			address.setTelephone(telephoneList);
			person.setAddress(address);
			PropertyUtils.setNestedProperty(person, "address.telephone[1]", "nest 11111111");
			PropertyUtils.setNestedProperty(person, "address.email", "[e-mail]");
			
			System.out.println(PropertyUtils.getSimpleProperty(person, "username"));
			System.out.println(PropertyUtils.getSimpleProperty(person, "age"));
			System.out.println(PropertyUtils.getSimpleProperty(person, "stature"));
			System.out.println(PropertyUtils.getSimpleProperty(person, "sex"));
			System.out.println(PropertyUtils.getSimpleProperty(person, "list"));
			//list
			System.err.println(PropertyUtils.getIndexedProperty(person, "list[0]"));
			System.err.println(PropertyUtils.getIndexedProperty(person, "list", 1));
			//数组
			System.out.println(PropertyUtils.getIndexedProperty(person, "friendsNames[0]"));
			System.out.println(PropertyUtils.getIndexedProperty(person, "friendsNames", 1));
			System.out.println(PropertyUtils.getIndexedProperty(person, "friendsNames[2]"));
			
			//Map
			System.err.println(PropertyUtils.getMappedProperty(person, "maps(key1)"));
			System.err.println(PropertyUtils.getMappedProperty(person, "maps", "key2"));
			System.err.println(PropertyUtils.getMappedProperty(person, "maps(key3)"));
			
			//nest--嵌套输出 
			System.out.println(PropertyUtils.getNestedProperty(person, "address.email"));
			System.out.println(PropertyUtils.getNestedProperty(person, "address.telephone[0]"));
			System.out.println(PropertyUtils.getNestedProperty(person, "address.telephone[1]"));
			
			//也可以使用如下方法获取值
			System.out.println(PropertyUtils.getProperty(person, "address.telephone[1]"));
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

 4、输出结果

 

李四
22
173.5
false
[list value 0, new list value 1]
list value 0
new list value 1
张三
王五
new赵钱
new value1
[e-mail]
12345678911
nest 11111111
nest 11111111
maps(key2) value
vlaue3

 

评论

2 楼 zhaobin87 2011-12-10  

北极光之吻 写道

好厉害

懂了就好。

1 楼 北极光之吻 2011-12-07  

好厉害