GSON 解析?报错

publicstatic<T>TgetEntities(Stringjson,TypeToken<T>token)throwsJSONException{
if(StringUtil.isNil(json)){
returnnull;
}
GsonBuildergsonBuilder=newGsonBuilder();
gson=(gson!=null?gson:newGson());
gson=gsonBuilder.registerTypeAdapter(Calendar.class,
newCalendarSerializer()).setDateFormat("yyyy-MM-dd").create();
TypecollectionType=token.getType();
returngson.fromJson(json,collectionType);
}

publicstaticclassCalendarSerializerimplements

JsonDeserializer<Calendar>{
@Override
publicCalendardeserialize(JsonElementjson,TypetypeOfT,
JsonDeserializationContextcontext)throwsJsonParseException{
SimpleDateFormatformat=newSimpleDateFormat("yyyy-MM-dd");
StringdateStr=json.getAsString();
Calendarcalendar=Calendar.getInstance();
try{
calendar.setTime(format.parse(dateStr));
}catch(java.text.ParseExceptione){
e.printStackTrace();
}
returncalendar;
}
}
getJSONString ()

引用来自“YeaWind”的答案

getJSONString ()