当我尝试反序列化时，我遇到了Java Jackson的问题。
public class Mapper {
public static Map<String, Object> JsonToMap(String json)
throws JsonParseException, JsonMappingException, IOException {
// Convert the JSON recieved through POST request to a HasMap
ObjectMapper mapper = new ObjectMapper();
Map<String, Object> map = new HashMap<String, Object>();
map = mapper.readValue(json, new TypeReference<Map<String, Object>>() {
});
return map;
}
这是JSON
{[
"UserMealDay": {
"date": "2016-04-04",
"slot_num": "1"
},
"Recipe": {
"id": "82",
"name": "Porridge with Banana & Sunflower Seeds",
"RecipeIngredient": [{
"id": "110263",
"multiplier": null,
"quantity": "50.00",
"ingredient_id": "486",
"ingredient_unit_id": "8",
"recipe_id": "82",
"Ingredient": {
"id": "486",
"name": "jumbo oats",
"plural": "jumbo oats",
"IngredientGroup": [{
"id": "19",
"name": "Oats",
"IngredientGroupsIngredient": {
"id": "160",
"ingredient_group_id": "19",
"ingredient_id": "486",
"created": "0000-00-00 00:00:00",
"modified": "0000-00-00 00:00:00",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}]
},
"IngredientUnit": {
"id": "8",
"short": "g",
"name": "g",
"plural": "g",
"created": "2015-07-14 20:10:33",
"modified": "2015-07-24 09:25:22",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}, {
"id": "110264",
"multiplier": null,
"quantity": "100.00",
"ingredient_id": "182",
"ingredient_unit_id": "18",
"recipe_id": "82",
"Ingredient": {
"id": "182",
"name": "cold water",
"plural": "cold water",
"IngredientGroup": [{
"id": "59",
"name": "Misc",
"IngredientGroupsIngredient": {
"id": "465",
"ingredient_group_id": "59",
"ingredient_id": "182",
"created": "0000-00-00 00:00:00",
"modified": "0000-00-00 00:00:00",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}, {
"id": "121",
"name": "water",
"IngredientGroupsIngredient": {
"id": "1104",
"ingredient_group_id": "121",
"ingredient_id": "182",
"created": "0000-00-00 00:00:00",
"modified": "0000-00-00 00:00:00",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}]
},
"IngredientUnit": {
"id": "18",
"short": "ml",
"name": "ml",
"plural": "ml",
"created": "2015-07-14 20:11:43",
"modified": "2015-07-24 09:42:29",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}, {
"id": "110265",
"multiplier": null,
"quantity": "100.00",
"ingredient_id": "815",
"ingredient_unit_id": "18",
"recipe_id": "82",
"Ingredient": {
"id": "815",
"name": "milk",
"plural": "milk",
"IngredientGroup": [{
"id": "1",
"name": "Dairy",
"IngredientGroupsIngredient": {
"id": "1158",
"ingredient_group_id": "1",
"ingredient_id": "815",
"created": "0000-00-00 00:00:00",
"modified": "0000-00-00 00:00:00",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}, {
"id": "3",
"name": "Cows Milk",
"IngredientGroupsIngredient": {
"id": "1159",
"ingredient_group_id": "3",
"ingredient_id": "815",
"created": "0000-00-00 00:00:00",
"modified": "0000-00-00 00:00:00",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}]
},
"IngredientUnit": {
"id": "18",
"short": "ml",
"name": "ml",
"plural": "ml",
"created": "2015-07-14 20:11:43",
"modified": "2015-07-24 09:42:29",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}, {
"id": "110266",
"multiplier": null,
"quantity": "1.00",
"ingredient_id": "707",
"ingredient_unit_id": "23",
"recipe_id": "82",
"Ingredient": {
"id": "707",
"name": "banana",
"plural": "bananas ",
"IngredientGroup": [{
"id": "45",
"name": "Tropical fruit",
"IngredientGroupsIngredient": {
"id": "340",
"ingredient_group_id": "45",
"ingredient_id": "707",
"created": "0000-00-00 00:00:00",
"modified": "0000-00-00 00:00:00",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}]
},
"IngredientUnit": {
"id": "23",
"short": "qty",
"name": "qty",
"plural": "qty",
"created": "2015-07-14 20:12:19",
"modified": "2015-07-24 09:43:13",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}, {
"id": "110267",
"multiplier": null,
"quantity": "20.00",
"ingredient_id": "280",
"ingredient_unit_id": "8",
"recipe_id": "82",
"Ingredient": {
"id": "280",
"name": "sunflower seeds",
"plural": "sunflower seeds",
"IngredientGroup": [{
"id": "79",
"name": "Seeds",
"IngredientGroupsIngredient": {
"id": "584",
"ingredient_group_id": "79",
"ingredient_id": "280",
"created": "0000-00-00 00:00:00",
"modified": "0000-00-00 00:00:00",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}]
},
"IngredientUnit": {
"id": "8",
"short": "g",
"name": "g",
"plural": "g",
"created": "2015-07-14 20:10:33",
"modified": "2015-07-24 09:25:22",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}, {
"id": "110268",
"multiplier": null,
"quantity": "1.00",
"ingredient_id": "493",
"ingredient_unit_id": "31",
"recipe_id": "82",
"Ingredient": {
"id": "493",
"name": "honey",
"plural": "honey",
"IngredientGroup": [{
"id": "87",
"name": "Non-refined\/ Natural sugar",
"IngredientGroupsIngredient": {
"id": "630",
"ingredient_group_id": "87",
"ingredient_id": "493",
"created": "0000-00-00 00:00:00",
"modified": "0000-00-00 00:00:00",
"deleted": "0",
"deleted_date": "0000-00-00 00:00:00"
}
}, .......
TypeReferencing只能使用原始变量，我必须使用String []作为我的第一个参数而不是String。 我该怎么办？
谢谢！