Java 将JsonObject存储到HasMap中

Java 将JsonObject存储到HasMap中,java,android,android-json,gson,Java,Android,Android Json,Gson,我的反应越来越差 在每个响应中,键和值都会发生变化。 我想在HashMap中存储count和previousCountDay、键和值 Json响应: { "count": { "2018-03-28 18": 55, "2018-03-28 19": 48, "2018-03-28 20": 41, "2018-03-28 21": 31, "2018-03-28 22": 32, "2018

我的反应越来越差

在每个响应中,键和值都会发生变化。

我想在HashMap中存储countpreviousCountDay、键和值

Json响应:

{
    "count": {
        "2018-03-28 18": 55,
        "2018-03-28 19": 48,
        "2018-03-28 20": 41,
        "2018-03-28 21": 31,
        "2018-03-28 22": 32,
        "2018-03-28 23": 26,
        "2018-03-29 00": 20,
        "2018-03-29 01": 16,
        "2018-03-29 02": 12,
        "2018-03-29 03": 0
    },
    "previousCountDay": {
        "2018-03-27 18": 40,
        "2018-03-27 19": 59,
        "2018-03-27 20": 53,
        "2018-03-27 21": 48,
        "2018-03-27 22": 36,
        "2018-03-27 23": 40,
        "2018-03-28 00": 37,
        "2018-03-28 01": 14,
        "2018-03-28 02": 29,
        "2018-03-28 03": 1
    }, 
    "noOfIntervals": 10,
    "range": [
        "18",
        "19",
        "20",
        "21",
        "22",
        "23",
        "00",
        "01",
        "02",
        "03"
    ]
}
 private void JsonRequestOrderVelocity(String dmhw) {
    utils.showDialog();

    String url = Constants.VELOCITY_API;
    Log.e("URL", "" + url);

    JsonObjectRequest request = new JsonObjectRequest(url, null,
            response -> {
                Log.e("onResponse",""+response);
                try {
                    Gson gson = new Gson();
                    Type listType = new TypeToken<OrderVelocityPojo>() {
                    }.getType();

                    orderVelocityPojo = gson.fromJson(response.toString(), listType);

                    Log.e("SIZE",""+orderVelocityPojo.getRange().size());

                    JSONObject object = response.getJSONObject("count");

                    Map<String, Integer> countMap = new HashMap<String, Integer>();

                    //store keys and values in HashMap.
                    for(int i=0;i<orderVelocityPojo.getRange().size();i++){

                       countMap.put( ); 

                    }



                } catch (Exception e) {
                    Log.e("Exception",""+e);
                    utils.hideDialog();
                    e.printStackTrace();

                }
                utils.hideDialog();

            }, error -> {

        Log.e("error",""+error.getMessage());
        utils.hideDialog();
    });
    request.setRetryPolicy(new DefaultRetryPolicy(
            MY_SOCKET_TIMEOUT_MS,
            DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
            DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
    AppController.getInstance(this).addToRequestQueue(request);
}
HashMap<String, Integer> count = new HashMap<>();
                     try {
                        JSONObject object = response.getJSONObject("count");
                        Iterator a = object.keys();
                        while (a.hasNext()) {
                            String key = (String) a.next();
                            // loop to get the dynamic key
                            Integer value = (Integer) object.get(key);
                            Log.e("count : ","Keys :"+ key+"   Values :"+value);
                            count.put(key, value);
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
通过使用GSON,我得到了JSON响应,但我只存储了
range
,因为它是在JSON数组中,通过
range
我得到了
count
previousCountDay
的大小

下面是我的活动课:

{
    "count": {
        "2018-03-28 18": 55,
        "2018-03-28 19": 48,
        "2018-03-28 20": 41,
        "2018-03-28 21": 31,
        "2018-03-28 22": 32,
        "2018-03-28 23": 26,
        "2018-03-29 00": 20,
        "2018-03-29 01": 16,
        "2018-03-29 02": 12,
        "2018-03-29 03": 0
    },
    "previousCountDay": {
        "2018-03-27 18": 40,
        "2018-03-27 19": 59,
        "2018-03-27 20": 53,
        "2018-03-27 21": 48,
        "2018-03-27 22": 36,
        "2018-03-27 23": 40,
        "2018-03-28 00": 37,
        "2018-03-28 01": 14,
        "2018-03-28 02": 29,
        "2018-03-28 03": 1
    }, 
    "noOfIntervals": 10,
    "range": [
        "18",
        "19",
        "20",
        "21",
        "22",
        "23",
        "00",
        "01",
        "02",
        "03"
    ]
}
 private void JsonRequestOrderVelocity(String dmhw) {
    utils.showDialog();

    String url = Constants.VELOCITY_API;
    Log.e("URL", "" + url);

    JsonObjectRequest request = new JsonObjectRequest(url, null,
            response -> {
                Log.e("onResponse",""+response);
                try {
                    Gson gson = new Gson();
                    Type listType = new TypeToken<OrderVelocityPojo>() {
                    }.getType();

                    orderVelocityPojo = gson.fromJson(response.toString(), listType);

                    Log.e("SIZE",""+orderVelocityPojo.getRange().size());

                    JSONObject object = response.getJSONObject("count");

                    Map<String, Integer> countMap = new HashMap<String, Integer>();

                    //store keys and values in HashMap.
                    for(int i=0;i<orderVelocityPojo.getRange().size();i++){

                       countMap.put( ); 

                    }



                } catch (Exception e) {
                    Log.e("Exception",""+e);
                    utils.hideDialog();
                    e.printStackTrace();

                }
                utils.hideDialog();

            }, error -> {

        Log.e("error",""+error.getMessage());
        utils.hideDialog();
    });
    request.setRetryPolicy(new DefaultRetryPolicy(
            MY_SOCKET_TIMEOUT_MS,
            DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
            DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
    AppController.getInstance(this).addToRequestQueue(request);
}
HashMap<String, Integer> count = new HashMap<>();
                     try {
                        JSONObject object = response.getJSONObject("count");
                        Iterator a = object.keys();
                        while (a.hasNext()) {
                            String key = (String) a.next();
                            // loop to get the dynamic key
                            Integer value = (Integer) object.get(key);
                            Log.e("count : ","Keys :"+ key+"   Values :"+value);
                            count.put(key, value);
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
private void JsonRequestOrderVelocity(字符串dmhw){
utils.showDialog();
字符串url=Constants.VELOCITY\u API;
Log.e(“URL”,“URL+URL”);
JsonObjectRequest=新的JsonObjectRequest(url,null,
答复->{
Log.e(“onResponse”,即“+response”);
试一试{
Gson Gson=新的Gson();
类型listType=新类型令牌(){
}.getType();
orderVelocityPojo=gson.fromJson(response.toString(),listType);
Log.e(“大小”,“orderVelocityPojo.getRange().SIZE());
JSONObject object=response.getJSONObject(“count”);
Map countMap=新的HashMap();
//在HashMap中存储键和值。
对于(int i=0;i{
Log.e(“error”,“”+error.getMessage());
utils.hideDialog();
});
request.setRetryPolicy(新的DefaultRetryPolicy(
我的插座超时,
DefaultRetryPolicy.DEFAULT\u最大重试次数,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
AppController.getInstance(this).addToRequestQueue(请求);
}
OrderVelocityPojoPojo类:

import java.util.List;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class OrderVelocityPojo {

    @SerializedName("noOfIntervals")
    @Expose
    private Integer noOfIntervals;

    @SerializedName("range")
    @Expose
    private List<String> range = null; 


    public Integer getNoOfIntervals() {
        return noOfIntervals;
    }

    public void setNoOfIntervals(Integer noOfIntervals) {
        this.noOfIntervals = noOfIntervals;
    }

    public List<String> getRange() {
        return range;
    }

    public void setRange(List<String> range) {
        this.range = range;
    }
}
import java.util.List;
导入com.google.gson.annotations.Expose;
导入com.google.gson.annotations.SerializedName;
公共类OrderVelocityPojo{
@序列化名称(“noOfIntervals”)
@暴露
私有整数noOfIntervals;
@序列化名称(“范围”)
@暴露
私有列表范围=空;
公共整数getNoOfIntervals(){
返回noOfIntervals;
}
公共void setNoOfIntervals(整数noOfIntervals){
this.noOfIntervals=noOfIntervals;
}
公共列表getRange(){
返回范围;
}
公共无效设置范围(列表范围){
这个范围=范围;
}
}
您可以为此使用库。 您可以尝试将json对象转换为hashmap。这里您将提供typeToken作为json类型值

Map<String, Object> hashmap = new Gson().fromJson(
    jsonString, new TypeToken<HashMap<String, Object>>() {}.getType()
);
Map hashmap=new Gson().fromJson(
jsonString,新的TypeToken(){}.getType()
);

您还可以使用
JSONObject
的迭代键手动添加数据

下面是示例代码

        HashMap<String, String> count = new HashMap<>();
        HashMap<String, String> previousCountDay = new HashMap<>();
        try {
            JSONObject mJsonObjectMain = new JSONObject("your json string");
            JSONObject mJsonObjectCount = mJsonObjectMain.getJSONObject("count");
            Iterator a = mJsonObjectCount.keys();
            while (a.hasNext()) {
                String key = (String) a.next();
                // loop to get the dynamic key
                String value = (String) mJsonObjectCount.get(key);
                System.out.print("key : " + key);
                System.out.println(" value :" + value);
                count.put(key, value);
            }

            JSONObject mJsonObjectPreviousCount = mJsonObjectMain.getJSONObject("previousCountDay");
            //do same as above
        } catch (JSONException e) {
            e.printStackTrace();
        }
HashMap count=newhashmap();
HashMap previousCountDay=新HashMap();
试一试{
JSONObject mJsonObjectMain=新的JSONObject(“您的json字符串”);
JSONObject mJsonObjectCount=mJsonObjectMain.getJSONObject(“count”);
迭代器a=mJsonObjectCount.keys();
while(a.hasNext()){
字符串键=(字符串)a.next();
//循环以获取动态密钥
字符串值=(字符串)mJsonObjectCount.get(键);
系统输出打印(“键:+键);
System.out.println(“值:”+value);
count.put(键、值);
}
JSONObject MJSONObject PreviousCount=MJSONObject main.getJSONObject(“previousCountDay”);
//同上
}捕获(JSONException e){
e、 printStackTrace();
}
最终代码:

{
    "count": {
        "2018-03-28 18": 55,
        "2018-03-28 19": 48,
        "2018-03-28 20": 41,
        "2018-03-28 21": 31,
        "2018-03-28 22": 32,
        "2018-03-28 23": 26,
        "2018-03-29 00": 20,
        "2018-03-29 01": 16,
        "2018-03-29 02": 12,
        "2018-03-29 03": 0
    },
    "previousCountDay": {
        "2018-03-27 18": 40,
        "2018-03-27 19": 59,
        "2018-03-27 20": 53,
        "2018-03-27 21": 48,
        "2018-03-27 22": 36,
        "2018-03-27 23": 40,
        "2018-03-28 00": 37,
        "2018-03-28 01": 14,
        "2018-03-28 02": 29,
        "2018-03-28 03": 1
    }, 
    "noOfIntervals": 10,
    "range": [
        "18",
        "19",
        "20",
        "21",
        "22",
        "23",
        "00",
        "01",
        "02",
        "03"
    ]
}
 private void JsonRequestOrderVelocity(String dmhw) {
    utils.showDialog();

    String url = Constants.VELOCITY_API;
    Log.e("URL", "" + url);

    JsonObjectRequest request = new JsonObjectRequest(url, null,
            response -> {
                Log.e("onResponse",""+response);
                try {
                    Gson gson = new Gson();
                    Type listType = new TypeToken<OrderVelocityPojo>() {
                    }.getType();

                    orderVelocityPojo = gson.fromJson(response.toString(), listType);

                    Log.e("SIZE",""+orderVelocityPojo.getRange().size());

                    JSONObject object = response.getJSONObject("count");

                    Map<String, Integer> countMap = new HashMap<String, Integer>();

                    //store keys and values in HashMap.
                    for(int i=0;i<orderVelocityPojo.getRange().size();i++){

                       countMap.put( ); 

                    }



                } catch (Exception e) {
                    Log.e("Exception",""+e);
                    utils.hideDialog();
                    e.printStackTrace();

                }
                utils.hideDialog();

            }, error -> {

        Log.e("error",""+error.getMessage());
        utils.hideDialog();
    });
    request.setRetryPolicy(new DefaultRetryPolicy(
            MY_SOCKET_TIMEOUT_MS,
            DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
            DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
    AppController.getInstance(this).addToRequestQueue(request);
}
HashMap<String, Integer> count = new HashMap<>();
                     try {
                        JSONObject object = response.getJSONObject("count");
                        Iterator a = object.keys();
                        while (a.hasNext()) {
                            String key = (String) a.next();
                            // loop to get the dynamic key
                            Integer value = (Integer) object.get(key);
                            Log.e("count : ","Keys :"+ key+"   Values :"+value);
                            count.put(key, value);
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
HashMap count=newhashmap();
试一试{
JSONObject object=response.getJSONObject(“count”);
迭代器a=object.keys();
while(a.hasNext()){
字符串键=(字符串)a.next();
//循环以获取动态密钥
整数值=(整数)对象。获取(键);
Log.e(“计数:”,“键:“+key+”值:“+value”);
count.put(键、值);
}
}捕获(JSONException e){
e、 printStackTrace();
}

你能展示你的OrderVelocityPojo类吗?由于键在变化,很难定义一个Pojo来反序列化json。你可以将json反序列化为对象或映射,在这两种情况下,GSON都会从你的响应中形成一个嵌套映射。你可以从映射中获取count-Map。尽管你必须执行一些类型转换。我添加了我的Pojo class@Debanjani如果“count”键不变,您可以在pojo中添加Map count;,否则您可能不得不放弃pojo并改用Map。