JSON与LIST互转

1. 使用谷歌的Gson https://github.com/google/gson
2. 使用阿里的fastJson https://github.com/alibaba/fastjson

谷歌的Gson:

//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：

//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);