如何在Android中使用改型解析嵌套json对象

我想使用改型来解析嵌套的items对象。 这是我的目标

        {  
       "items":{  
          "Veg Main Course":[  
             {  
                "category":"27013046129796342702616905670",
                "description":"",
                "price":100.0,
                "name":"Aloo 65"
             },
             {  
                "category":"27013046129796342702616905670",
                "description":"",
                "price":100.0,
                "name":"Finger Chips"
             },
             {  
                "category":"27013046129796342702616905670",
                "description":"",
                "price":100.0,
             }
         ],
     "Bityanis":[  
         {  
            "category":"27013046129796342702616905670",
            "description":"",
            "price":100.0,
            "name":"Aloo 65"
         },
         {  
            "category":"27013046129796342702616905670",
            "description":"",
            "price":100.0,
            "name":"Finger Chips"
         },
         {  
            "category":"27013046129796342702616905670",
            "description":"",
            "price":100.0,
         }
     ]
.
.
.
So on...
    }

我的改装模型如下所示

public class RetroData {
    public Map<String,Menu> items;
}
public class Menu {
    public Map<String, ItemArray> cat_menu;

}
public class ItemArray {
    public ArrayList<MenuItem> itemArray;

}
public class MenuItem {

    public String category;
    public String description;
    public String price;
    public String is_active;
    public String id;
    public String disabled;
    public String sales_count;
    public String image;
    public String name;


}

---

如您所见，错误状态为“预期的BEGIN\u对象，但为BEGIN\u数组”。在RetroData类中，您希望“items”是字符串和菜单（对象）类型的映射，但在响应中，您没有得到菜单对象，而是得到了菜单项的数组

试试这个：

public class RetroData {
public Map<String,List<MenuItem>> items;
}


public class MenuItem {
    public String category;
    public String description;
    public String price;
    public String is_active;
    public String id;
    public String disabled;
    public String sales_count;
    public String image;
    public String name;
}

公共类数据{
公共地图项目；
}
公共类菜单项{
公共字符串类别；
公共字符串描述；
公共字符串价格；
公共字符串处于活动状态；
公共字符串id；
禁用公共字符串；
公共字符串销售计数；
公共字符串图像；
公共字符串名称；
}

希望这能奏效。

---

另外，我没有亲自测试过。

你能发布你的错误吗？@maddesa谢谢。我刚刚添加了有问题的错误片段。你能看到吗？谢谢你，沙尚克。成功了。（y） 我犯了这个愚蠢的错误。

06-26 22:16:21.136 4194-4194/com.example.adam.myfirstapp W/System.err: retrofit.RetrofitError: com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 32 path $.items.
06-26 22:16:21.136 4194-4194/com.example.adam.myfirstapp W/System.err:     at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:383)
06-26 22:16:21.136 4194-4194/com.example.adam.myfirstapp W/System.err:     at retrofit.RestAdapter$RestHandler.access$100(RestAdapter.java:220)
06-26 22:16:21.136 4194-4194/com.example.adam.myfirstapp W/System.err:     at retrofit.RestAdapter$RestHandler$2.obtainResponse(RestAdapter.java:278)
06-26 22:16:21.136 4194-4194/com.example.adam.myfirstapp W/System.err:     at retrofit.CallbackRunnable.run(CallbackRunnable.java:42)
06-26 22:16:21.136 4194-4194/com.example.adam.myfirstapp W/System.err:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
06-26 22:16:21.136 4194-4194/com.example.adam.myfirstapp W/System.err:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
06-26 22:16:21.136 4194-4194/com.example.adam.myfirstapp W/System.err:     at retrofit.Platform$Android$2$1.run(Platform.java:142)
06-26 22:16:21.136 4194-4194/com.example.adam.myfirstapp W/System.err:     at java.lang.Thread.run(Thread.java:818)
06-26 22:16:21.136 4194-4194/com.example.adam.myfirstapp W/System.err: Caused by: retrofit.converter.ConversionException: com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 32 path $.items.
06-26 22:16:21.137 4194-4194/com.example.adam.myfirstapp W/System.err:     at retrofit.converter.GsonConverter.fromBody(GsonConverter.java:67)
06-26 22:16:21.137 4194-4194/com.example.adam.myfirstapp W/System.err:     at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:367)
06-26 22:16:21.137 4194-4194/com.example.adam.myfirstapp W/System.err:  ... 7 more
06-26 22:16:21.137 4194-4194/com.example.adam.myfirstapp W/System.err: Caused by: com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 32 path $.items.
06-26 22:16:21.139 4194-4194/com.example.adam.myfirstapp W/System.err:     at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:200)
06-26 22:16:21.140 4194-4194/com.example.adam.myfirstapp W/System.err:     at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:40)
06-26 22:16:21.140 4194-4194/com.example.adam.myfirstapp W/System.err:     at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:187)
06-26 22:16:21.141 4194-4194/com.example.adam.myfirstapp W/System.err:     at com.google.gson.internal.bind.MapTypeAdapterFactory$Adapter.read(MapTypeAdapterFactory.java:145)
06-26 22:16:21.141 4194-4194/com.example.adam.myfirstapp W/System.err:     at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:103)
06-26 22:16:21.141 4194-4194/com.example.adam.myfirstapp W/System.err:     at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:196)
06-26 22:16:21.141 4194-4194/com.example.adam.myfirstapp W/System.err:     at com.google.gson.Gson.fromJson(Gson.java:810)
06-26 22:16:21.141 4194-4194/com.example.adam.myfirstapp W/System.err:     at com.google.gson.Gson.fromJson(Gson.java:775)
06-26 22:16:21.141 4194-4194/com.example.adam.myfirstapp W/System.err:     at retrofit.converter.GsonConverter.fromBody(GsonConverter.java:63)
06-26 22:16:21.141 4194-4194/com.example.adam.myfirstapp W/System.err:  ... 8 more
06-26 22:16:21.141 4194-4194/com.example.adam.myfirstapp W/System.err: Caused by: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 32 path $.items.
06-26 22:16:21.141 4194-4194/com.example.adam.myfirstapp W/System.err:     at com.google.gson.stream.JsonReader.beginObject(JsonReader.java:387)
06-26 22:16:21.141 4194-4194/com.example.adam.myfirstapp W/System.err:     at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:189)
06-26 22:16:21.141 4194-4194/com.example.adam.myfirstapp W/System.err:  ... 16 more

public class RetroData {
public Map<String,List<MenuItem>> items;
}


public class MenuItem {
    public String category;
    public String description;
    public String price;
    public String is_active;
    public String id;
    public String disabled;
    public String sales_count;
    public String image;
    public String name;
}