Java：Json与List对象的相互转换

谷歌的Gson.jar：

//list转换为json

Gson gson = new Gson();

List<Person> persons = new ArrayList<Person>();

String str = gson.toJson(persons);

//json转换为list

Gson gson = new Gson();

List<Person> persons = gson.fromJson(str, new TypeToken<List<Person>>(){}.getType());

 

阿里的fastJson.jar：(import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONObject;)

//list转换为json

List<CustPhone> list = new ArrayList<CustPhone>();

String str=JSON.toJSON(list).toString();

//json转换为list

List<Person> list = new ArrayList<Person>();
list = JSONObject.parseArray(jasonArray, Person.class);

 

实用举例：

参数：JSONObject params

List<DlvOrderDto> dlvOrderDtos = new ArrayList<>();
String str = JSON.toJSON(params.get("rowData")).toString();
dlvOrderDtos = JSONObject.parseArray(str, DlvOrderDto.class);