JSON

[
	{
		"cardName":"bankCard1",
		"cardCode":"888888888",
		"cardValue":99999999
	},{
		"cardName":"bankCard1",
		"cardCode":"999999999",
		"cardValue":222222222
	}
]

阿里fastjson

 	<dependency>
		<groupId>com.alibaba</groupId>
		<artifactId>fastjson</artifactId>
		<version>1.2.15</version>
	</dependency>
 

import com.alibaba.fastjson.JSON; 
import com.alibaba.fastjson.JSONObject;

JSON物件生成字串

    JSONObject jObject=new JSONObject();
    jObject.put("username", "xiejava");
    jObject.put("sex", "man");
    jObject.put("age", 38); 
   	jObject.put("email", "[email protected]");
   	String json2=jObject.
 
toJSONString();

通過JSONArray包裝物件陣列

List<Card> cards=new ArrayList<Card>();
cards.add(card1);
cards.add(card2);
JSONArray jArray=new JSONArray();
jArray.addAll(cards);

json字串轉java物件（OrderInfo(orderId、orderDate)）

OrderInfo orderInfo = JSON.parseObject(jsonStr, OrderInfo.class);

json字串轉json物件

String jsonStr = “{\”orderId\” : \”1111111\”;\”orderDate\” : \”2016-11-22 11:03:00\”}”; 
JSONObject jsonObject = JSON.parseObject(jsonStr); 
String orderId = jsonObject.getString(“orderId”); 
String orderDate =jsonObject.getString(“orderDate”);

java物件轉json字串

//java物件轉json字串
String jsonStr = JSON.toJSONString(orderInfo)
//java物件轉json物件
JSON json = (JSON) JSON.toJSON(orderInfo);