Java JSON 之 Map 转 JSON 字符串

http://www.verejava.com/?id=16998617072749

下载依赖 jar 包   

json.jar 




package com.json9;

import java.util.HashMap;
import java.util.Map;

import org.json.JSONObject;

public class Test
{
	public static void main(String[] args)
	{
		/*
		 Map map=new HashMap();
		Map 对象存入 用户名,密码,电话号码
		 */
		
		Map map=new HashMap();
		//Map 对象存入 用户名,密码,电话号码
		map.put("username", "liyang");
		map.put("pwd", "111111");
		map.put("telephone", "152232323");
		
		//Map 转成  JSONObject 字符串
		JSONObject jsonObj=new JSONObject(map);
		System.out.println(jsonObj.toString());
	}
}






package com.json10;

import java.util.HashMap;
import java.util.Map;

import org.json.JSONObject;

public class Test
{
	public static void main(String[] args)
	{
		/*
		 Map map=new HashMap();
		Map 对象存入 用户名,密码,年龄
		 */
		
		Map map=new HashMap();
		//Map 对象存入 用户名,密码,年龄
		map.put("username", "admin");
		map.put("pwd", "22");
		map.put("age", 20);
		
		JSONObject jsonObj=new JSONObject(map);
		System.out.println(jsonObj.toString());
	}
}





package com.json11;

import java.util.HashMap;
import java.util.Map;

import org.json.JSONObject;

import com.json7.House;

public class Test
{
	public static void main(String[] args)
	{
		/*
		 Map map=new HashMap();
		Map 对象存入 姓名,年龄, House 对象
		 */
		
		Map map=new HashMap();
		
		//Map 对象存入 姓名,年龄, House 对象
		map.put("name", "李俊");
		map.put("age", 30);
		map.put("house", new House(1,"理会","3室2厅",5500,false));
		
		JSONObject jsonObj=new JSONObject(map);
		System.out.println(jsonObj.toString());
	}
}







package com.json7;

public class House
{
	//编号, 房东,房屋描述,房屋价格,是否出租
	private int id;
	private String owner;
	private String description;
	private double price;
	private boolean isRent;
	public House(int id, String owner, String description, double price,
			boolean isRent)
	{
		super();
		this.id = id;
		this.owner = owner;
		this.description = description;
		this.price = price;
		this.isRent = isRent;
	}
	public int getId()
	{
		return id;
	}
	public void setId(int id)
	{
		this.id = id;
	}
	public String getOwner()
	{
		return owner;
	}
	public void setOwner(String owner)
	{
		this.owner = owner;
	}
	public String getDescription()
	{
		return description;
	}
	public void setDescription(String description)
	{
		this.description = description;
	}
	public double getPrice()
	{
		return price;
	}
	public void setPrice(double price)
	{
		this.price = price;
	}
	public boolean isRent()
	{
		return isRent;
	}
	public void setRent(boolean isRent)
	{
		this.isRent = isRent;
	}
	
	
}





package com.json12;

import java.util.HashMap;
import java.util.Map;

import org.json.JSONObject;

import com.json7.House;

public class Test
{
	public static void main(String[] args)
	{
		/*
		 Map map=new HashMap();
		Map 对象存入 姓名,年龄, House 对象,颜色数组
		 */
		
		Map map=new HashMap();
		//Map 对象存入 姓名,年龄, House 对象,颜色数组
		map.put("name", "王涛");
		map.put("age", 40);
		map.put("house", new House(2,"等均","1室1厅",3000,false));
		map.put("color", new String[]{"红色","蓝色","绿色"});
		
		JSONObject jsonObj=new JSONObject(map);
		System.out.println(jsonObj.toString());
	}
}

http://www.verejava.com/?id=16998617072749