嗨，我是android开发的新手，我正在学习解析json数据，并且被困在解析多维json数据中

Question

这是我要解析的json数据。

{
   "responseCode": 200,
   "message": "Category List",
   "category_data": [
       {
           "id": "24",
           "slug": "product",
           "category_code": "PC",
           "category_image": "Category_1576578421lh5d.png",
           "status": "1",
           "created_at": "2020-01-10 01:23:22",
           "category_name": "ACCESORIES",
           "subcategory": [
               {
                   "id": "8",
                   "category_id": "24",
                   "slug": "belt",
                   "subcategory_code": "BELT",
                   "status": "1",
                   "created_at": "2019-12-17 08:47:27",
                   "subcategory_name": "BELT"
               },
               {
                   "id": "9",
                   "category_id": "24",
                   "slug": "bags",
                   "subcategory_code": "BAGS",
                   "status": "1",
                   "created_at": "2019-12-17 08:47:15",
                   "subcategory_name": "BAGS"
               },
               {
                   "id": "10",
                   "category_id": "24",
                   "slug": "hat",
                   "subcategory_code": "HAT",
                   "status": "1",
                   "created_at": "2019-12-17 08:46:28",
                   "subcategory_name": "HAT"
               },
               {
                   "id": "16",
                   "category_id": "24",
                   "slug": "underwear",
                   "subcategory_code": "UW",
                   "status": "1",
                   "created_at": "2019-12-17 08:47:47",
                   "subcategory_name": "UNDERWEAR"
               },
               {
                   "id": "17",
                   "category_id": "24",
                   "slug": "undershirt",
                   "subcategory_code": "US",
                   "status": "1",
                   "created_at": "2019-12-17 08:47:58",
                   "subcategory_name": "UNDERSHIRT"
               },
               {
                   "id": "18",
                   "category_id": "24",
                   "slug": "boxer",
                   "subcategory_code": "BX",
                   "status": "1",
                   "created_at": "2019-12-17 08:48:31",
                   "subcategory_name": "BOXER"
               },
               {
                   "id": "19",
                   "category_id": "24",
                   "slug": "shocks",
                   "subcategory_code": "SC",
                   "status": "1",
                   "created_at": "2019-12-17 08:48:40",
                   "subcategory_name": "SHOCKS"
               },
               {
                   "id": "20",
                   "category_id": "24",
                   "slug": "slipper",
                   "subcategory_code": "SLP",
                   "status": "1",
                   "created_at": "2019-12-17 08:49:08",
                   "subcategory_name": "SLIPPER"
               },
               {
                   "id": "21",
                   "category_id": "24",
                   "slug": "slip-on",
                   "subcategory_code": "SO",
                   "status": "1",
                   "created_at": "2019-12-17 08:48:48",
                   "subcategory_name": "SLIP ON"
               },
               {
                   "id": "22",
                   "category_id": "24",
                   "slug": "shoes",
                   "subcategory_code": "SH",
                   "status": "1",
                   "created_at": "2019-12-17 01:13:05",
                   "subcategory_name": "SHOES"
               },
               {
                   "id": "31",
                   "category_id": "24",
                   "slug": "updates",
                   "subcategory_code": "FU",
                   "status": "1",
                   "created_at": "2020-01-10 01:42:08",
                   "subcategory_name": "TERBARU"
               }
           ]
       },

请帮助我解析此内容

Answer 1

您可以使用gson解析器轻松解析此JSON。

步骤：1.为sub_category数据创建POJO类，如下所示：-

 class SubCategory {

    @SerializedName("id") 
    String id;

    @SerializedName("category_id") 
    String categoryId;

    @SerializedName("subcategory_code") 
    String subcategoryCode;

//.... Declare all var here as like above ...//

    }

2. 为category_data创建另一个POJO，如下所示：-

   类别类别{

       @SerializedName("id") 
       String id;
   
       @SerializedName("category_code") 
       String categoryCode;
   
       @SerializedName("subcategory") 
       ArrayList<SubCategory> subcategories;
   

   // ....像上面一样声明所有其他var ... //

   }

3. 上次POJO用于​​家长回复（如果需要），如下所示：-

   ApiResponse类{

   @SerializedName("responseCode") 
   int responseCode;
   
   @SerializedName("category_data") 
   ArrayList<Category> categories;
   
   }
   

这里您可以找到更多有关gson解析的教程：- https://www.javacodegeeks.com/2011/01/android-json-parsing-gson-tutorial.html