Json格式数据的生成和工具类ExtHelper的使用

一、需要的jar包：

commons-beanutils-1.7.0.jar、commons-collections-3.2.jar、commons-lang-2.3.jar、commons-logging-1.0.4.jar、ezmorph-1.0.4.jar、json-lib-2.4-jdk15.jar

 

二、javabean

Person.java

package com.leo.bean;

public class Person {
	private String name;
	private int age;
	private PhoneNumber homePhone;
	private PhoneNumber officePhone;

	public Person(String name, int age, PhoneNumber homePhone,
			PhoneNumber officePhone) {
		super();
		this.name = name;
		this.age = age;
		this.homePhone = homePhone;
		this.officePhone = officePhone;
	}

	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 PhoneNumber getHomePhone() {
		return homePhone;
	}

	public void setHomePhone(PhoneNumber homePhone) {
		this.homePhone = homePhone;
	}

	public PhoneNumber getOfficePhone() {
		return officePhone;
	}

	public void setOfficePhone(PhoneNumber officePhone) {
		this.officePhone = officePhone;
	}

}

  PhoneNumber.java

package com.leo.bean;

public class PhoneNumber {
	private String type;
	private String number;

	public PhoneNumber(String type, String number) {
		super();
		this.type = type;
		this.number = number;
	}

	public String getType() {
		return type;
	}

	public void setType(String type) {
		this.type = type;
	}

	public String getNumber() {
		return number;
	}

	public void setNumber(String number) {
		this.number = number;
	}

}

 

三、工具类

TotalJson.java

package com.leo.bean;

import java.util.List;

public class TotalJson {
	private long results;
	private List items;

	public long getResults() {
		return results;
	}

	public void setResults(long results) {
		this.results = results;
	}

	public List getItems() {
		return items;
	}

	public void setItems(List items) {
		this.items = items;
	}

}

 ExtHelper.java

package com.leo.bean;

import java.util.List;

import net.sf.json.JSONObject;

public class ExtHelper {
	public static String getJsonFromList(long recordTotal, List beanList) {
		TotalJson total = new TotalJson();
		total.setResults(recordTotal);
		total.setItems(beanList);
		JSONObject jsonArray = JSONObject.fromObject(total);
		return jsonArray.toString();
	}

}

 

四、测试类

JsonListTest.java

package com.leo.test;

import java.util.ArrayList;
import java.util.List;

import com.leo.bean.ExtHelper;
import com.leo.bean.PhoneNumber;

public class JsonListTest {
	public static void main(String[] args) {
		// 创建PhoneNumber对象homePhone
		PhoneNumber homePhone = new PhoneNumber("宅电", "123456");
		// 创建PhoneNumber对象officePhone
		PhoneNumber officePhone = new PhoneNumber("办公电话", "654321");
		List phoneList = new ArrayList();
		phoneList.add(homePhone);
		phoneList.add(officePhone);
		String json = ExtHelper.getJsonFromList(phoneList.size(), phoneList);
		System.out.println(json);
	}
}

  JsonLibTest.java

package com.leo.test;

import net.sf.json.JSONObject;

import com.leo.bean.Person;
import com.leo.bean.PhoneNumber;

public class JsonLibTest {
	public static void main(String[] args) {
		PhoneNumber homePhone = new PhoneNumber("宅电", "123456");
		PhoneNumber officePhone = new PhoneNumber("办公电话", "654321");
		Person person = new Person("tom", 20, homePhone, officePhone);
		JSONObject json = JSONObject.fromObject(person);
		String jsonStr = json.toString();
		System.out.println(json);
	}

}