使用改造无法从android中的json响应中获取light_id

Question

Hi in the below code i have a button named as mPreset .If am click on that am sending get method to the server and am trying to get the response.if the response is is successful then am printing the json data.

But my light_id is not printing. can any one please help to resolve this issues

In the below code i have a class named as GetScheduler in that one is String type and remaining two are array of integer types.

GetScheduler.java:

 public class GetScheduler {
    @SerializedName("status")
    private String status;

    @SerializedName("data")
    private DataClass data;

    public DataClass getData() {
        return data;
    }

    public void setData(DataClass data) {
        this.data= data;
    }
    public String getStatus() {
        return status;
    }

    public void setStatus(String status) {
        this.status = status;
    }

    public class DataClass {
        @SerializedName("light_id")
        private String light_id;
        @SerializedName("intensity")
        private int[] intensity;
        @SerializedName("cct")
        private int[] cct;

        public String getLight_id() {
            return light_id;
        }

        public void setLight_id(String light_id) {
            this.light_id = light_id;
        }

        public int[] getIntensity() {
            return intensity;
        }

        public void setIntensity(int[] intensity) {
            this.intensity = intensity;
        }

        public int[] getCct() {
            return cct;
        }

        public void setCct(int[] cct) {
            this.cct = cct;
        }
    }

In the below class describes the interface named as API

API.java:

 public interface API {
    @retrofit2.http.GET("/gateway_schedule")
    retrofit2.Call<GetScheduler> getSchedulerData();

    }

Main.java:

 mPreset.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    getCCTAndIntensityValuesForPreset();

                }
            });
     private void getCCTAndIntensityValuesForPreset() {


        String url = "http://172.24.1.1:9000";

        Retrofit retrofit = null;
        Log.d("123", "retrofit");

        if (retrofit == null) {
            retrofit = new Retrofit.Builder()
                    .baseUrl(url)
                    .addConverterFactory(GsonConverterFactory.create())
                    .build();
            Log.d("123", "build();");
        }
        API service = retrofit.create(API.class);

        Call<GetScheduler> call=service.getSchedulerData();
        Log.d("123", "Call<List<GetScheduler>> call = service.getSchedulerData();");
        call.enqueue(new Callback<GetScheduler>() {
            @Override
            public void onResponse(Call<GetScheduler> call, Response<GetScheduler> response) {
                if(response!=null&&response.isSuccessful()){
                    String getLightId=response.body().getData().getLight_id();
                    Toast.makeText(getApplicationContext(),"Light Id"+getLightId,Toast.LENGTH_LONG).show();
                    //String light_id=response.body()
                    int[] getIntensty=response.body().getData().getIntensity();
                    for(int i=0;i<getIntensty.length;i++){
                        getIntensty[i]=i;
                    }
                    int[] getCCT=response.body().getData().getCct();
                    for(int i=0;i<getCCT.length;i++){
                        getCCT[i]=i;
                        mCCT1.setProgress(getCCT[0]);
                        mCCT2.setProgress(getCCT[1]);
                        mCCT3.setProgress(getCCT[2]);
                        mCCT4.setProgress(getCCT[3]);
                        mCCT5.setProgress(getCCT[4]);
                        mCCT6.setProgress(getCCT[5]);
                        mCCT7.setProgress(getCCT[6]);
                        mCCT8.setProgress(getCCT[7]);
                        mCCT9.setProgress(getCCT[8]);
                        mCCT10.setProgress(getCCT[9]);
                        mCCT11.setProgress(getCCT[10]);
                        mCCT12.setProgress(getCCT[11]);

                    }
                }

            };

            @Override
            public void onFailure(Call<GetScheduler> call, Throwable t) {
                t.printStackTrace();
            }


        });

}

Json:

{"status":"success","data":{"light_id":"00","intensity":[60,60,60,60,60,60,60,60,60,60,60,60],"cct":[100,100,100,100,90,90,80,90,78,89,89,90]}}

Answer 1

change your response like this

public class GetScheduler {
   @SerializedName("status")
   private String status;

   @SerializedName("data")
   private DataClass data;

   public DataClass getData() {
        return data;
   }

   public void setData(DataClass data) {
       this.data= data;
   }
   public String getStatus() {
       return status;
   }

   public void setStatus(String status) {
      this.status = status;
    }

   public class DataClass {
        @SerializedName("light_id")
        private String light_id;
        @SerializedName("intensity")
        private int[] intensity;
        @SerializedName("cct")
        private int[] cct;

        public String getLight_id() {
            return light_id;
        }

        public void setLight_id(String light_id) {
            this.light_id = light_id;
        }

        public int[] getIntensity() {
            return intensity;
        }

        public void setIntensity(int[] intensity) {
            this.intensity = intensity;
        }

        public int[] getCct() {
            return cct;
        }

        public void setCct(int[] cct) {
            this.cct = cct;
        }
     }
}

If you have array response (as I see you don't) you must use List<GetScheduler> else you must use only GetScheduler

So Change all

 List<GetScheduler>

To

 GetScheduler

API.java

public interface API {
@retrofit2.http.GET("/gateway_schedule")
     retrofit2.Call<GetScheduler> getSchedulerData();
}

And Main.java

private void getCCTAndIntensityValuesForPreset() {
    try {
        String url = "http://172.24.1.1:9000";

        Retrofit retrofit = null;
        Log.d("123", "retrofit");

        if (retrofit == null) {
            retrofit = new Retrofit.Builder()
                    .baseUrl(url)
                    .addConverterFactory(GsonConverterFactory.create())
                    .build();
            Log.d("123", "build();");
        }
        API service = retrofit.create(API.class);

        Call<GetScheduler> call=service.getSchedulerData();
        Log.d("123", "Call<GetScheduler> call = service.getSchedulerData();");
        call.enqueue(new Callback<GetScheduler>() {
            @Override
            public void onResponse(Call<GetScheduler> call, Response<GetScheduler> response) {
                if(response!=null&&response.isSuccessful()){
                    String getLightId=response.body().getData().getLight_id().toString();
                    Toast.makeText(getApplicationContext(),"Light Id"+getLightId,Toast.LENGTH_LONG).show();
                    //String light_id=response.body()
                    int[] getIntensty=response.body().getData().getIntensity();
                    for(int i=0;i<getIntensty.length;i++){
                        getIntensty[i]=i;
                    }
                    int[] getCCT=response.body().getData().getCct();
                    for(int i=0;i<getCCT.length;i++){
                        getCCT[i]=i;
                        mCCT1.setProgress(getCCT[0]);
                        mCCT2.setProgress(getCCT[1]);
                    }
                }

            };

            @Override
            public void onFailure(Call<GetScheduler> call, Throwable t) {
                t.printStackTrace();
            }


        });

    }catch (Exception e) {
        e.printStackTrace();
    }

}

And you must change this line in onResponse like this

String getLightId=response.body().getData().getLight_id().toString();

I suggest you to add log in onFailure() and see logCat and remove try catch

@Override
public void onFailure(Call<List<GetScheduler>> call, Throwable t) {
     t.printStackTrace();
}

Answer 2

You need to Create 2 Class like

package com.your.package;

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

public class Data {

@SerializedName("light_id")
@Expose
private String lightId;
@SerializedName("intensity")
@Expose
private List<Integer> intensity = null;
@SerializedName("cct")
@Expose
private List<Integer> cct = null;

public String getLightId() {
return lightId;
}

public void setLightId(String lightId) {
this.lightId = lightId;
}

public List<Integer> getIntensity() {
return intensity;
}

public void setIntensity(List<Integer> intensity) {
this.intensity = intensity;
}

public List<Integer> getCct() {
return cct;
}

public void setCct(List<Integer> cct) {
this.cct = cct;
}

}
-----------------------------------com.your.package.GetScheduler.java-----------------------------------

package com.your.package;

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class GetScheduler {

@SerializedName("status")
@Expose
private String status;
@SerializedName("data")
@Expose
private Data data;

public String getStatus() {
return status;
}

public void setStatus(String status) {
this.status = status;
}

public Data getData() {
return data;
}

public void setData(Data data) {
this.data = data;
}

}