动态密钥 json 从 WebService 获取响应？

Posted 2023-03-22

技术标签:

【中文标题】动态密钥 json 从 WebService 获取响应？【英文标题】：Dynamic key json fetch response From WebService? 【发布时间】：2019-08-16 10:14:59 【问题描述】：

以下是网络服务 URL 响应：

  
 "Status":"Success",
 "StatusCode":"200",
 "Message":"data fetch successfully.",
 "Data":  
  "1":  
     "OptionGroupName":"OPTION",
     "OptionGroupId":"122",
     "OptionCount":2,
     "Options":[  
          
           "OptionGroupId":"122",
           "OptionGroupName":"Option",
           "ProductId":"2861",
           "OptionId":"329",
           "OptionName":"Hot",
           "OptionPrice":"4.00",
           "IsActive":"1"
        ,
          
           "OptionGroupId":"122",
           "OptionGroupName":"Option",
           "ProductId":"2861",
           "OptionId":"330",
           "OptionName":"Ice",
           "OptionPrice":"4.30",
           "IsActive":"1"
        
     ]

下面是模型类；

public class Elements

@SerializedName("Data")
@Expose
private Map<String, Data> Data;

public Map<String, Data> getFeeds() 
    return Data;


public void setFeeds(Map<String, Data> Data) 
    this.Data = Data;


public class Data 
    @SerializedName("OptionGroupName")
    @Expose
    private String OptionGroupName;

    public String getOptionGroupName() 
        return OptionGroupName;
    

    public void setOptionGroupName(String optionGroupName) 
        OptionGroupName = optionGroupName;

下面是获取响应的代码；

  Map<String, String> jsonObject = new HashMap<>();
    jsonObject.put("productid", "2861");
    jsonObject.put("multiple", "1");

    ApiHandler.getApiService().place_order(jsonObject,
            new Callback<Elements>() 
                @RequiresApi(api = Build.VERSION_CODES.KITKAT)
                @Override
                public void success(Elements placeOrderModel, Response
                        response) 

                    Log.e("response.getElemDetails()",""+response.getBody());
                    Gson gson = new Gson();
                    Elements myObj  = gson.fromJson(response.toString(),
                            new TypeToken<Elements>().getType());


                    for (int i=0;i<myObj.getFeeds().size();i++)
                    
                        Log.e("data",""+myObj.getFeeds().get(i).getOptionGroupName());
                    
                

                @Override
                public void failure(RetrofitError error) 

                
            );

我无法使用模型类解析 json。如何使用改造获得动态密钥 json 的响应？

【问题讨论】：

根据我的意见最好改变对后端的响应是否无法使用改造实现动态密钥 json 解析？或者任何其他简单的方法然后请帮助我？ "Data": 应该是JSON_ARRAY 格式 【参考方案1】：

这与改造无关，而是gson。您正在使用 gson (GsonConverterFactory) 进行解析，而不是改造。，也许你应该为这个模型注册TypeAdapter并手动完成。

https://google.github.io/gson/apidocs/com/google/gson/TypeAdapter.html

【讨论】：

您能否为此发布正确的答案，以便更好地了解如何使用改造获得这种类型的动态密钥 json？【参考方案2】：

我有一个解决方案，请查看我的答案；

WebServices.java（接口）

public interface Webservices 
@POST("/******.php?request=******")
@FormUrlEncoded
void place_order(@FieldMap Map<String, String> params, Callback<Elements> callback);

Elements.java

public class Elements

@SerializedName("Data")
@Expose
private Map<String, Data> Data;

public Map<String, Data> getFeeds() 
    return Data;


public void setFeeds(Map<String, Data> Data) 
    this.Data = Data;


public class Data 
    @SerializedName("OptionGroupName")
    @Expose
    private String OptionGroupName;

    public String getOptionGroupName() 
        return OptionGroupName;
    

    public void setOptionGroupName(String optionGroupName) 
        OptionGroupName = optionGroupName;
    

    @Override
    public String toString() 
        return "Data" +
                "OptionGroupName='" + OptionGroupName + '\'' +
                '';
    

    @SerializedName("Options")
    @Expose
    ArrayList<OptionsList> Options;

    public ArrayList<OptionsList> getOptions() 
        return Options;
    

    public void setOptions(ArrayList<OptionsList> options) 
        Options = options;
    


@Override
public String toString() 
    return "Elements" +
            "Data=" + Data +
            '';


public class OptionsList 
    @SerializedName("OptionName")
    @Expose
    private String OptionName;

    public String getOptionGroupName() 
        return OptionName;
    

    public void setOptionGroupName(String OptionName) 
        OptionName = OptionName;

为 Recyclerview 中的集合数据创建了一个模型

DataModel.java

public class DataModel

String key,baseOptionGroupName,optionGroupName;

DataModel(String key,String baseOptionGroupName,String optionGroupName)

    this.key=key;
    this.baseOptionGroupName=baseOptionGroupName;
    this.optionGroupName=optionGroupName;


public String getKey() 
    return key;


public void setKey(String key) 
    this.key = key;


public String getBaseOptionGroupName() 
    return baseOptionGroupName;


public void setBaseOptionGroupName(String baseOptionGroupName) 
    this.baseOptionGroupName = baseOptionGroupName;


public String getOptionGroupName() 
    return optionGroupName;


public void setOptionGroupName(String optionGroupName) 
    this.optionGroupName = optionGroupName;


@Override
public String toString() 
    return "DataModel" +
            "key='" + key + '\'' +
            ", baseOptionGroupName='" + baseOptionGroupName + '\'' +
            ", optionGroupName='" + optionGroupName + '\'' +
            '';

网络服务调用

 public class MainActivity extends AppCompatActivity 

DataModel dataModel ;
ArrayList<DataModel> dataModelArrayList = new ArrayList<>();
RecyclerView rvHistoryList;
HistoryAdapter historyAdapter;

//    "Status":"Success","StatusCode":"200","Message":"data fetch successfully.","Data":"1":"OptionGroupName":"CHOICE OF MEAT'S","OptionGroupId":"227","OptionCount":3,"Options":["OptionGroupId":"227","OptionGroupName":"Choice of Meat's","ProductId":"3426","OptionId":"1032","OptionName":"Ground Beef","OptionPrice":"0.00","IsActive":"1","group_id":"0","OptionGroupId":"227","OptionGroupName":"Choice of Meat's","ProductId":"3426","OptionId":"1033","OptionName":"Chicken","OptionPrice":"0.00","IsActive":"1","group_id":"0","OptionGroupId":"227","OptionGroupName":"Choice of Meat's","ProductId":"3426","OptionId":"1034","OptionName":"Pork Patty","OptionPrice":"0.00","IsActive":"1","group_id":"0"],"2":"OptionGroupName":"CHOICE OF SAUCE","OptionGroupId":"228","OptionCount":8,"Options":["OptionGroupId":"228","OptionGroupName":"Choice of Sauce","ProductId":"3426","OptionId":"1035","OptionName":"Tomato Sauce","OptionPrice":"0.00","IsActive":"1","group_id":"0","OptionGroupId":"228","OptionGroupName":"Choice of Sauce","ProductId":"3426","OptionId":"1036","OptionName":"BBQ Sauce","OptionPrice":"0.00","IsActive":"1","group_id":"0","OptionGroupId":"228","OptionGroupName":"Choice of Sauce","ProductId":"3426","OptionId":"1037","OptionName":"Mustard American Sauce","OptionPrice":"0.00","IsActive":"1","group_id":"0","OptionGroupId":"228","OptionGroupName":"Choice of Sauce","ProductId":"3426","OptionId":"1038","OptionName":"Aloli Sauce","OptionPrice":"0.00","IsActive":"1","group_id":"0","OptionGroupId":"228","OptionGroupName":"Choice of Sauce","ProductId":"3426","OptionId":"1039","OptionName":"Sweet Chilli Sauce","OptionPrice":"0.00","IsActive":"1","group_id":"0","OptionGroupId":"228","OptionGroupName":"Choice of Sauce","ProductId":"3426","OptionId":"1040","OptionName":"Chilli Sauce","OptionPrice":"0.00","IsActive":"1","group_id":"0","OptionGroupId":"228","OptionGroupName":"Choice of Sauce","ProductId":"3426","OptionId":"1041","OptionName":"Mayonaise","OptionPrice":"0.00","IsActive":"1","group_id":"0","OptionGroupId":"228","OptionGroupName":"Choice of Sauce","ProductId":"3426","OptionId":"1042","OptionName":"No Sauce","OptionPrice":"0.00","IsActive":"1","group_id":"0"]
@Override
protected void onCreate(Bundle savedInstanceState) 
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    rvHistoryList = findViewById(R.id.rvHistoryList);

    RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(MainActivity.this);
    rvHistoryList.setLayoutManager(mLayoutManager);
    rvHistoryList.setItemAnimator(new DefaultItemAnimator());

    Map<String, String> jsonObject = new HashMap<>();
    jsonObject.put("productid", "3426");
    jsonObject.put("multiple", "1");

    ApiHandler.getApiService().place_order(jsonObject,
            new Callback<Elements>() 
                @RequiresApi(api = Build.VERSION_CODES.KITKAT)
                @Override
                public void success(Elements placeOrderModel, Response
                        response) 

                    Map<String, Elements.Data> entityList = placeOrderModel.getFeeds();

                    for (String mapKey : entityList.keySet()) 

                        Log.e("Map", "mapKey : " + mapKey + " , mapValue : " + entityList.get(mapKey).getOptionGroupName());


                        for (int i = 0; i < entityList.get(mapKey).getOptions().size(); i++) 
                            Log.e("!!!!!!!!!!!!!", "" + entityList.get(mapKey).getOptions().get(i).getOptionGroupName());

                            dataModel = new DataModel(mapKey,entityList.get(mapKey).getOptionGroupName(),entityList.get(mapKey).getOptions().get(i).getOptionGroupName());
                            dataModelArrayList.add(dataModel);
                        


                    

                    historyAdapter = new HistoryAdapter(dataModelArrayList);
                    rvHistoryList.setAdapter(historyAdapter);


                    Log.e("AAAAAAAAAAAAAAAAAAAAAA", "" + dataModelArrayList.toString());

                

                @Override
                public void failure(RetrofitError error) 

                
            );


public class HistoryAdapter extends RecyclerView.Adapter<HistoryAdapter.ViewHolder> 
    private ArrayList<DataModel> mDataset;

    public HistoryAdapter(ArrayList<DataModel> reviwsLists) 
        mDataset = reviwsLists;
    

    // Create new views (invoked by the layout manager)
    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) 
        // create a new view
        View v = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.list_history, parent, false);

        ViewHolder vh = new ViewHolder(v);
        return vh;
    

    // Replace the contents of a view (invoked by the layout manager)
    @Override
    public void onBindViewHolder(final ViewHolder holder, final int position) 
        // - get element from your dataset at this position
        // - replace the contents of the view with that element
        holder.tv1.setText(mDataset.get(position).getKey());
        holder.tv2.setText(mDataset.get(position).getBaseOptionGroupName());
        holder.tv3.setText(mDataset.get(position).getOptionGroupName());
    

    // Return the size of your dataset (invoked by the layout manager)
    @Override
    public int getItemCount() 
        return mDataset.size();
    

    public class ViewHolder extends RecyclerView.ViewHolder 
        // each data item is just a string in this case
        public View mainView;
        TextView tv1, tv2,tv3;

        public ViewHolder(View v) 
            super(v);
            mainView = v;
            tv1 = v.findViewById(R.id.tv1);
            tv2 = v.findViewById(R.id.tv2);
            tv3 = v.findViewById(R.id.tv3);

【讨论】：

【参考方案3】：

您可以在下面找到另一个动态密钥 json 获取响应的答案

JSON

    
   "tom@example.com":  
  "_from":"giles@gmail.com",
  "message":  
     "from":"giles@gmail.com",
     "detail":"AnyonewanttomeetmeinParis"
  
  ,
 "harry@example.com":  
  "_from":"giles@gmail.com",
  "message":  
     "from":"giles@gmail.com",
     "detail":"AnyonewanttomeetmeinParis"

网络服务调用

        ApiHandler.getApiService().place_order2(
            new Callback<Object>() 
                @RequiresApi(api = Build.VERSION_CODES.KITKAT)
                @Override
                public void success(Object placeOrderModel, Response
                        response) 

                    Log.e("WWWWWWWWWWWWWWWWWWW",""+placeOrderModel.toString());
                    JSONObject jsonData = null;
                    try 
                        jsonData = new JSONObject(placeOrderModel.toString());
                     catch (JSONException e) 
                        e.printStackTrace();
                    
                    Iterator itr = jsonData.keys();
                    while(itr.hasNext()) 
                        String keys = (String) itr.next();
                        Log.e("Keys", "----" + keys);

                        try 
                            JSONObject issue = jsonData.getJSONObject(keys);
                            String _pubKey = issue.optString("_from");
                            Log.e("_from", "----" + _pubKey);

                            dataModel = new DataModel(keys,_pubKey);
                            dataModelArrayList.add(dataModel);

                         catch (JSONException e) 
                            e.printStackTrace();
                        
                    

                    historyAdapter = new HistoryAdapter(dataModelArrayList);
                    rvHistoryList.setAdapter(historyAdapter);
                

                @Override
                public void failure(RetrofitError error) 

                
            );

【讨论】：

以上是关于动态密钥 json 从 WebService 获取响应？的主要内容，如果未能解决你的问题，请参考以下文章

从android解析jsonObject并在webservice vb.net中获取它

将 JSON 映射到数据模型，需要从动态键中获取嵌套的电子邮件值

如何从 json-rpc webservice 获取数据：iPad /iPhone / Objective C

如何从 json 对象中获取密钥

如何使用 SwiftyJSON 从 JSON 对象中获取 JSON 密钥？

从配置单元中的 JSON 数组获取 JSON 密钥时面临的问题