PropertyUtils的使用

JeeStudy

Commons BeanUtils

[Java] 纯文本查看 复制代码

package com.jeestudy.bean;

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

import org.apache.commons.beanutils.PropertyUtils;

public class PropertyUtilsTest {

        public static void main(String[] args) {
                Person person = new Person();
                try {
                        // simple property
                        PropertyUtils.setSimpleProperty(person, "name", "李四");
                        PropertyUtils.setSimpleProperty(person, "age", 22);
                        PropertyUtils.setSimpleProperty(person, "stature", 173.5f);
                        PropertyUtils.setSimpleProperty(person, "sex", new Boolean(false));

                        // index property
                        // List
                        List<String> list = new ArrayList<String>();
                        list.add("0");
                        list.add("1");
                        String listValue2 = "2";
                        PropertyUtils.setSimpleProperty(person, "list", list);
                        // 修改list的值
                        PropertyUtils.setIndexedProperty(person, "list[1]", listValue2);

                        // 数组
                        String[] friends = { "张三", "李四", "王五" };
                        person.setFriends(friends);
                        PropertyUtils.setIndexedProperty(person, "friends[2]", "张李五");

                        // Map
                        Map<String, String> map = new HashMap<String, String>();
                        map.put("k1", "v1");
                        map.put("k2", "v2");
                        map.put("k3", "v3");
                        person.setMap(map);
                        PropertyUtils.setMappedProperty(person, "map", "k1", "v11");
                        PropertyUtils.setMappedProperty(person, "map(k3)", "v33");

                        // nest property
                        Address address = new Address();
                        address.setEmail("www.jeestudy.com");
                        List<String> telephoneList = new ArrayList<String>();
                        telephoneList.add("123");
                        telephoneList.add("456");
                        address.setTelephone(telephoneList);
                        person.setAddress(address);
                        PropertyUtils.setNestedProperty(person, "address.telephone[1]", "010-123");
                        PropertyUtils.setNestedProperty(person, "address.email", "www@jeestudy.com");

                        System.out.println(PropertyUtils.getSimpleProperty(person, "name"));
                        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, "friends[0]"));
                        System.out.println(PropertyUtils.getIndexedProperty(person, "friends", 1));
                        System.out.println(PropertyUtils.getIndexedProperty(person, "friends[2]"));

                        // Map
                        System.err.println(PropertyUtils.getMappedProperty(person, "map(k1)"));
                        System.err.println(PropertyUtils.getMappedProperty(person, "map", "k2"));
                        System.err.println(PropertyUtils.getMappedProperty(person, "map(k3)"));

                        // 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) {
                        e.printStackTrace();
                }
        }
}

[Java] 纯文本查看 复制代码

package com.jeestudy.bean;

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

public class Person {
	private String name;
	private int age;
	private float stature;
	private boolean sex;
	private List<String> list = new ArrayList<String>();
	private String[] friends;
	private Map<String, String> map = new HashMap<String, String>();
	private Address address;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	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;
	}

	public List<String> getList() {
		return list;
	}

	public void setList(List<String> list) {
		this.list = list;
	}

	public String[] getFriends() {
		return friends;
	}

	public void setFriends(String[] friends) {
		this.friends = friends;
	}

	public Map<String, String> getMap() {
		return map;
	}

	public void setMap(Map<String, String> map) {
		this.map = map;
	}

	public Address getAddress() {
		return address;
	}

	public void setAddress(Address address) {
		this.address = address;
	}

}

[Java] 纯文本查看 复制代码

package com.jeestudy.bean;

import java.util.List;

public class Address {
	private String email;
	private List<String> telephone;

	public Address() {
	}

	public Address(String email, List<String> telephone) {
		this.email = email;
		this.telephone = 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;
	}

}