json格式和list的转换

• 前提
• list转换为json
• json转换为list

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先导入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());