在android中使用改造的json解析错误
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【中文标题】在android中使用改造的json解析错误【英文标题】：json parsing error using retrofit in android 【发布时间】：2021-11-02 10:13:39 【问题描述】：您好，我在解析 json 时遇到问题。
我收到了这个错误
D/MAgencyRepo: onFailure : java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $
谷歌搜索此错误的结果表明我从 api 获得的响应与我所做的响应模型类不同。
所以我试图找到这两者之间的区别，但我找不到任何区别。
为什么会出现此错误？ 我该如何解决？？
这是我的 DTO 类代码
public class ShortWeather implements Serializable
@Expose
@SerializedName("response")
public Response response;
public static class Response implements Serializable
@Expose
@SerializedName("body")
public Body body;
@Expose
@SerializedName("header")
public Header header;
public static class Body implements Serializable
@Expose
@SerializedName("totalCount")
public int totalcount;
@Expose
@SerializedName("numOfRows")
public int numofrows;
@Expose
@SerializedName("pageNo")
public int pageno;
@Expose
@SerializedName("items")
public Items items;
@Expose
@SerializedName("dataType")
public String datatype;
public static class Items implements Serializable
@Expose
@SerializedName("item")
public List<Item> item;
public static class Item implements Serializable
@Expose
@SerializedName("ny")
public int ny;
@Expose
@SerializedName("nx")
public int nx;
@Expose
@SerializedName("fcstValue")
public String fcstvalue;
@Expose
@SerializedName("fcstTime")
public String fcsttime;
@Expose
@SerializedName("fcstDate")
public String fcstdate;
@Expose
@SerializedName("category")
public String category;
@Expose
@SerializedName("baseTime")
public String basetime;
@Expose
@SerializedName("baseDate")
public String basedate;
public static class Header implements Serializable
@Expose
@SerializedName("resultMsg")
public String resultmsg;
@Expose
@SerializedName("resultCode")
public String resultcode;
@Override
public String toString()
return "ShortWeather" +
"response=" + response +
'';
这是我通过邮递员调用的 json 响应
"response":
"header":
"resultCode": "00",
"resultMsg": "NORMAL_SERVICE"
,
"body":
"dataType": "JSON",
"items":
"item": [
"baseDate": "20210904",
"baseTime": "1100",
"category": "TMP",
"fcstDate": "20210904",
"fcstTime": "1200",
"fcstValue": "26",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "UUU",
"fcstDate": "20210904",
"fcstTime": "1200",
"fcstValue": "-1.8",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "VVV",
"fcstDate": "20210904",
"fcstTime": "1200",
"fcstValue": "-0.4",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "VEC",
"fcstDate": "20210904",
"fcstTime": "1200",
"fcstValue": "78",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "WSD",
"fcstDate": "20210904",
"fcstTime": "1200",
"fcstValue": "1.9",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "SKY",
"fcstDate": "20210904",
"fcstTime": "1200",
"fcstValue": "1",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "PTY",
"fcstDate": "20210904",
"fcstTime": "1200",
"fcstValue": "0",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "POP",
"fcstDate": "20210904",
"fcstTime": "1200",
"fcstValue": "0",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "PCP",
"fcstDate": "20210904",
"fcstTime": "1200",
"fcstValue": "강수없음",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "REH",
"fcstDate": "20210904",
"fcstTime": "1200",
"fcstValue": "55",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "SNO",
"fcstDate": "20210904",
"fcstTime": "1200",
"fcstValue": "적설없음",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "TMP",
"fcstDate": "20210904",
"fcstTime": "1300",
"fcstValue": "27",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "UUU",
"fcstDate": "20210904",
"fcstTime": "1300",
"fcstValue": "-1.2",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "VVV",
"fcstDate": "20210904",
"fcstTime": "1300",
"fcstValue": "0.3",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "VEC",
"fcstDate": "20210904",
"fcstTime": "1300",
"fcstValue": "103",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "WSD",
"fcstDate": "20210904",
"fcstTime": "1300",
"fcstValue": "1.3",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "SKY",
"fcstDate": "20210904",
"fcstTime": "1300",
"fcstValue": "1",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "PTY",
"fcstDate": "20210904",
"fcstTime": "1300",
"fcstValue": "0",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "POP",
"fcstDate": "20210904",
"fcstTime": "1300",
"fcstValue": "0",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "PCP",
"fcstDate": "20210904",
"fcstTime": "1300",
"fcstValue": "강수없음",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "REH",
"fcstDate": "20210904",
"fcstTime": "1300",
"fcstValue": "50",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "SNO",
"fcstDate": "20210904",
"fcstTime": "1300",
"fcstValue": "적설없음",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "TMP",
"fcstDate": "20210904",
"fcstTime": "1400",
"fcstValue": "27",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "UUU",
"fcstDate": "20210904",
"fcstTime": "1400",
"fcstValue": "-0.2",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "VVV",
"fcstDate": "20210904",
"fcstTime": "1400",
"fcstValue": "0.6",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "VEC",
"fcstDate": "20210904",
"fcstTime": "1400",
"fcstValue": "153",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "WSD",
"fcstDate": "20210904",
"fcstTime": "1400",
"fcstValue": "0.7",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "SKY",
"fcstDate": "20210904",
"fcstTime": "1400",
"fcstValue": "3",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "PTY",
"fcstDate": "20210904",
"fcstTime": "1400",
"fcstValue": "0",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "POP",
"fcstDate": "20210904",
"fcstTime": "1400",
"fcstValue": "20",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "PCP",
"fcstDate": "20210904",
"fcstTime": "1400",
"fcstValue": "강수없음",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "REH",
"fcstDate": "20210904",
"fcstTime": "1400",
"fcstValue": "50",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "SNO",
"fcstDate": "20210904",
"fcstTime": "1400",
"fcstValue": "적설없음",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "TMP",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "28",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "UUU",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "0.7",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "VVV",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "0.6",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "VEC",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "229",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "WSD",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "0.9",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "SKY",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "3",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "PTY",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "0",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "POP",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "20",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "PCP",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "강수없음",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "REH",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "50",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "SNO",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "적설없음",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "TMX",
"fcstDate": "20210904",
"fcstTime": "1500",
"fcstValue": "28.0",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "TMP",
"fcstDate": "20210904",
"fcstTime": "1600",
"fcstValue": "27",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "UUU",
"fcstDate": "20210904",
"fcstTime": "1600",
"fcstValue": "1.5",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "VVV",
"fcstDate": "20210904",
"fcstTime": "1600",
"fcstValue": "0.1",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "VEC",
"fcstDate": "20210904",
"fcstTime": "1600",
"fcstValue": "266",
"nx": 55,
"ny": 127
,
"baseDate": "20210904",
"baseTime": "1100",
"category": "WSD",
"fcstDate": "20210904",
"fcstTime": "1600",
"fcstValue": "1.5",
"nx": 55,
"ny": 127
]
,
"pageNo": 1,
"numOfRows": 50,
"totalCount": 676
这是我使用改造调用 api 的代码
MAgencyRepo 类
public class MAgencyRepo
private final String TAG = "MAgencyRepo";
private final static String BASE_URL = "http://apis.data.go.kr/1360000/VilageFcstInfoService_2.0/";
private static MAgencyRepo instance;
private Retrofit retrofit;
private MeteorologicalAgencyAPI MaAPI;
private ShortWeather sw;
public static MAgencyRepo getInStance()
if(instance == null)
instance = new MAgencyRepo();
return instance;
public MutableLiveData<ShortWeather> getWeather()
retrofit = new RetrofitService().getRetroInstance(BASE_URL);
MaAPI = retrofit.create(MeteorologicalAgencyAPI.class);
sw = new ShortWeather();
MutableLiveData<ShortWeather> data = new MutableLiveData<ShortWeather>();
callWeatherAPI(data);
return data;
private void callWeatherAPI(MutableLiveData<ShortWeather> data)
Call<ShortWeather> call = MaAPI.getShortWeather("this is my api key",
50,1,"JSON","20210904","0500",55,127);
call.enqueue(new Callback<ShortWeather>()
@Override
public void onResponse(Call<ShortWeather> call, Response<ShortWeather> response)
if(response.isSuccessful())
data.postValue(response.body());
Log.i(TAG,"API CONNECT SUCCESS");
Log.i(TAG,response.body().toString());
else
Log.i(TAG,"API CONNECT SUCCESS BUT WRONG PARAMETER");
Log.i(TAG,response.body().toString());
@Override
public void onFailure(Call<ShortWeather> call, Throwable t)
Log.d(TAG,"onFailure : "+t.getMessage());
);
改造服务类
public class RetrofitService
public Retrofit getRetroInstance(String baseUrl)
Gson gson = new GsonBuilder()
.setLenient()
.create();
return new Retrofit.Builder()
.baseUrl(baseUrl)
.addConverterFactory(GsonConverterFactory.create(gson))
.build();
【问题讨论】：
【参考方案1】：我发现我放在代码上的 api 密钥已被编码。 但是当我尝试发送一个 api 密钥时，密钥又被编码了。 所以我一直收到一个错误提示
服务密钥未注册
我不知道如何获取 http 连接日志。 所以我不知道发生了什么 但我找到了一种使用 okhttp 从 http 连接获取日志的方法
这是我的代码
public class RetrofitService
public Retrofit getRetroInstance(String baseUrl)
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient client = new OkHttpClient.Builder().addInterceptor(interceptor).build();
Gson gson = new GsonBuilder()
.setLenient()
.create();
return new Retrofit.Builder()
.baseUrl(baseUrl)
.client(client)
.addConverterFactory(GsonConverterFactory.create(gson))
.build();
下次我应该使用 okhttp 来查看 http 连接日志。
【讨论】：
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