PropertyUtils的使用

1、定义一个二个bean类

（１）  第一个

 

Java代码

package com.sunrex.demo02;



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;

    }

}

 

（２）第二个

Java代码

package com.sunrex.demo02;



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;

    }

}

 

 

３、测试类

Java代码

package com.sunrex.demo02;



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("[email protected]");

            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", "[email protected]");

            

            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
[email protected]
12345678911
nest 11111111
nest 11111111
maps(key2) value
vlaue3