使用改造调用服务时出错 Expected BEGIN_ARRAY 但在第 1 行第 1 列路径 $ 处为 STRING
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【中文标题】使用改造调用服务时出错 Expected BEGIN_ARRAY 但在第 1 行第 1 列路径 $ 处为 STRING【英文标题】：Error while calling service with retrofit Expected BEGIN_ARRAY but was STRING at line 1 column 1 path $ 【发布时间】：2021-12-22 01:25:39 【问题描述】：我几天以来一直在努力解决这个错误。我已经尝试清理项目并重建它，但它对我不起作用。
这是我的改造电话
@Headers("Content-Tyoe: application/json")
@GET("api/formchecks/available/job/id")
Call<List<FormCheckList>> getAvailableFormCheckListsByJob(@Path("id") int id, @Header("Authorization") String auth);
我的 gson 和改造声明：
Gson gson = new GsonBuilder()
.setLenient()
.create();
private List<FormCheckList> checks;
retrofit = new Retrofit.Builder()
.baseUrl(RetrofitInterface.API_BASE_URL)
.addConverterFactory(GsonConverterFactory.create(gson))
.build();
我的 call.enqueue
RetrofitInterface service = retrofit.create(RetrofitInterface.class);
Call<List<FormCheckList>> call = service.getAvailableFormCheckListsByJob(id, auth);
call.enqueue(new Callback<List<FormCheckList>>()
@Override
public void onResponse(Call<List<FormCheckList>> call, Response<List<FormCheckList>> response)
ErrorResponse res;
Log.d("HERE", "CHECKS: " + (response.body() != null));
switch (response.code())
case 404:
try
res = gson.fromJson(response.errorBody().string(), ErrorResponse.class);
customAlert.setTxtAlert(res.message);
customAlert.setType("info");
customAlert.startLoadingDialog();
catch (IOException e)
Log.d("HERE2", "checks " + response.body());
e.printStackTrace();
customAlert.setTxtAlert(e.getMessage());
customAlert.setType("error");
customAlert.startLoadingDialog();
break;
case 400:
try
res = gson.fromJson(response.errorBody().string(), ErrorResponse.class);
customAlert.setTxtAlert(res.message);
customAlert.setType("warning");
customAlert.startLoadingDialog();
catch (IOException e)
Log.d("HERE1", "checks " + response.body());
e.printStackTrace();
customAlert.setTxtAlert(e.getMessage());
customAlert.setType("error");
customAlert.startLoadingDialog();
break;
case 200:
checks = response.body();
break;
default:
break;
@Override
public void onFailure(Call<List<FormCheckList>> call, Throwable t)
customAlert.setTxtAlert(t.getMessage());
customAlert.setType("error");
customAlert.startLoadingDialog();
);
我的 Postman 响应模型
[
"id": 119,
"formParamSetupId": 8893,
"formParamSetup":
"id": 8893,
"referIndex": "1.1",
"formParam":
"id": 3,
"description": "Larghezza",
"lastUpdate": "2020-08-24T08:52:05.0300464"
,
"paramExtraValue": "SPC",
"dimensionalSurvey":
"value": 24.8,
"posTolerance": 0.5,
"negTolerance": 0.25,
"surveyType": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0303808"
,
"id": 120,
"formParamSetupId": 8894,
"formParamSetup":
"id": 8894,
"referIndex": "1.2",
"formParam":
"id": 5,
"description": "Verifica cavità contatto",
"lastUpdate": "2020-08-24T08:52:05.0696232"
,
"paramExtraValue": null,
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0330752"
,
"id": 121,
"formParamSetupId": 8895,
"formParamSetup":
"id": 8895,
"referIndex": "1.3",
"formParam":
"id": 90,
"description": "Verifica assenza di bava imbocco cavità contatto",
"lastUpdate": "2020-08-31T12:04:00"
,
"paramExtraValue": null,
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0355646"
,
"id": 122,
"formParamSetupId": 8896,
"formParamSetup":
"id": 8896,
"referIndex": "2.1",
"formParam":
"id": 38,
"description": "Verifica assenza di : bruciature,crepe,bave,incompletezze,deformazioni",
"lastUpdate": "2020-08-24T08:52:05.7714885"
,
"paramExtraValue": null,
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0381673"
,
"id": 123,
"formParamSetupId": 8897,
"formParamSetup":
"id": 8897,
"referIndex": "2.2",
"formParam":
"id": 51,
"description": "Verifica inserimento controparte",
"lastUpdate": "2020-08-24T08:52:06.0401384"
,
"paramExtraValue": "maschio (vedere ciclo)",
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0405131"
,
"id": 124,
"formParamSetupId": 8898,
"formParamSetup":
"id": 8898,
"referIndex": "2.3",
"formParam":
"id": 54,
"description": "Verifica inserimento wedge",
"lastUpdate": "2020-08-24T08:52:06.1074036"
,
"paramExtraValue": "female 54200225",
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0429302"
,
"id": 125,
"formParamSetupId": 8899,
"formParamSetup":
"id": 8899,
"referIndex": "2.4",
"formParam":
"id": 55,
"description": "Verifica inserimento CPA",
"lastUpdate": "2020-08-24T08:52:06.1264616"
,
"paramExtraValue": "54200003",
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0453145"
,
"id": 126,
"formParamSetupId": 8900,
"formParamSetup":
"id": 8900,
"referIndex": "2.5",
"formParam":
"id": 56,
"description": "Verifica inserimento retainer",
"lastUpdate": "2020-08-24T08:52:06.1456205"
,
"paramExtraValue": "54200234",
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0476976"
,
"id": 127,
"formParamSetupId": 8901,
"formParamSetup":
"id": 8901,
"referIndex": "2.6",
"formParam":
"id": 62,
"description": "Verifica polarizzazione",
"lastUpdate": "2020-08-24T08:52:06.2752349"
,
"paramExtraValue": null,
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.050052"
,
"id": 128,
"formParamSetupId": 8903,
"formParamSetup":
"id": 8903,
"referIndex": "2.8",
"formParam":
"id": 49,
"description": "Verifica massima bava ammessa",
"lastUpdate": "2020-08-24T08:52:05.9991429"
,
"paramExtraValue": "nel gancio max 0.3 mm",
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.05241"
,
"id": 129,
"formParamSetupId": 8902,
"formParamSetup":
"id": 8902,
"referIndex": "2.7",
"formParam":
"id": 39,
"description": "Verifica presenza",
"lastUpdate": "2020-08-24T08:52:05.7915265"
,
"paramExtraValue": "numero cavità stampo, numero cavità contatti e numero di vendita 52772",
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0548928"
,
"id": 130,
"formParamSetupId": 8904,
"formParamSetup":
"id": 8904,
"referIndex": "2.9",
"formParam":
"id": 78,
"description": "Etichette identificazione",
"lastUpdate": "2020-08-24T08:52:06.6031977"
,
"paramExtraValue": null,
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0574036"
,
"id": 131,
"formParamSetupId": 8905,
"formParamSetup":
"id": 8905,
"referIndex": "2.10",
"formParam":
"id": 79,
"description": "Corretta quantità nelle scatole",
"lastUpdate": "2020-08-24T08:52:06.6229642"
,
"paramExtraValue": null,
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0597732"
,
"id": 132,
"formParamSetupId": 5684,
"formParamSetup":
"id": 5684,
"referIndex": "4.1",
"formParam":
"id": 86,
"description": "Verifica presenza ultimo reclamo esposto",
"lastUpdate": "2020-08-31T11:27:00"
,
"paramExtraValue": null,
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0636418"
,
"id": 133,
"formParamSetupId": 5685,
"formParamSetup":
"id": 5685,
"referIndex": "4.2",
"formParam":
"id": 87,
"description": "Verifica corretto funzionamento della bilancia",
"lastUpdate": "2020-08-31T11:27:00"
,
"paramExtraValue": null,
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0662109"
,
"id": 134,
"formParamSetupId": 5686,
"formParamSetup":
"id": 5686,
"referIndex": "4.3",
"formParam":
"id": 88,
"description": "Verifica Termoregolatore",
"lastUpdate": "2020-08-31T11:27:00"
,
"paramExtraValue": null,
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0684877"
,
"id": 135,
"formParamSetupId": 5687,
"formParamSetup":
"id": 5687,
"referIndex": "4.4",
"formParam":
"id": 89,
"description": "Verifica Metal Detector",
"lastUpdate": "2020-08-31T11:27:00"
,
"paramExtraValue": null,
"dimensionalSurvey": null
,
"formCheckListTimer": null,
"formCheckListQualityCheck": null,
"insertDate": "2021-11-08T12:23:18.0707119"
]
但还是有问题。 我认为json响应的格式也很好。
【问题讨论】：
【参考方案1】：请问用什么变量来保存这个
checks = response.body();这个“检查” 我认为“检查”变量是一个字符串，检查以确认否则更改它以返回您的模型类。
【讨论】：
您可以尝试的另一件事是检查您的模型类是否结构良好checks 被声明为private List<FormCheckList> checks;
尝试进行检查，然后将 Object 转换为 response.body()
它一直在 onFailure 分支中进行【参考方案2】：
问题是API的签名错误，并且返回的List从后端配置错误。
【讨论】：
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