Retrofit 收到 400 错误请求，但与邮递员一起工作

问题描述 投票：0回答：6

我的 API 基本网址是：

https://locodealapi.herokuapp.com/api/deals

在邮递员中传递以下标头，效果很好。

x-access-token:eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.5XFJnJqTsfID9uqOwkNf46oraj9jDxic7qNSqBdunD0

在改造界面中，我有以下内容，但收到 400 错误请求

@POST("api/deals")
    Call<ResponseBody> deals(@Header("x-access-token") String x_access_token)

调用代码：

Retrofit retrofit = new Retrofit.Builder()
                .baseUrl("https://locodealapi.herokuapp.com")
                .addConverterFactory(GsonConverterFactory.create())
                .client(httpClient.build())
                .build();
        AppRestAPI client = retrofit.create(AppRestAPI.class);    

        Call<ResponseBody> call1 = client.deals(
                token
        );          

        call1.enqueue(new Callback<ResponseBody>() {
            @Override
            public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
                Log.i(TAG, "The response is " + response.message());
                Log.i(TAG, "The response is " + response.body());    

                try {
                    Log.i(TAG, "The response is " + response.errorBody().string());

                    if (response.code() == 400) {
                        Log.v("Error code 400",response.errorBody().string());
                    }

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

            @Override
            public void onFailure(Call<ResponseBody> call, Throwable t) {
                Log.e(TAG, "onFailure: Failed", t);

            }
        });

OKHTTP日志拦截器

11-21 21:14:30.939 3253-3342/? D/OkHttp: --> POST https://locodealapi.herokuapp.com/api/deals
11-21 21:14:30.939 3253-3342/? D/OkHttp: Content-Length: 0
11-21 21:14:30.940 3253-3342/? D/OkHttp: x-access-token: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX2lkIjoyNSwidXNlcl9uYW1lIj....
11-21 21:14:30.942 3253-3342/? D/OkHttp: --> END POST (0-byte body)    
11-21 21:14:34.188 3253-3342/? D/OkHttp: <-- 400 Bad Request https://locodealapi.herokuapp.com/api/deals (3246ms)
11-21 21:14:34.189 3253-3342/? D/OkHttp: Connection: close
11-21 21:14:34.189 3253-3342/? D/OkHttp: Server: Cowboy
11-21 21:14:34.189 3253-3342/? D/OkHttp: Date: Tue, 21 Nov 2017 15:29:33 GMT
11-21 21:14:34.190 3253-3342/? D/OkHttp: Content-Length: 0
11-21 21:14:34.191 3253-3342/? D/OkHttp: <-- END HTTP (0-byte body)
11-21 21:14:34.196 3253-3253/? I/BaseDrawerActivity: The response is Bad Request
11-21 21:14:34.196 3253-3253/? I/BaseDrawerActivity: The response is null
11-21 21:14:34.196 3253-3253/? I/BaseDrawerActivity: The response is

注意： 相同的代码在本地 Nodejs 服务器上运行良好（仅限 http）

android node.js heroku passport.js retrofit2
6个回答
4
投票

1.首先你的 api 是 GET 方法，所以使用 @GET 而不是 @POST

第二次尝试在改造中更改 url 基本 url .baseUrl("https://locodealapi.herokuapp.com") 到 .baseUrl("https://locodealapi.herokuapp.com/") 这会起作用。或在评论中留下您的问题 2.这是示例代码

HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
    interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
    OkHttpClient okHttpClient = new OkHttpClient.Builder().addInterceptor(
            new Interceptor() {
                @Override
                public Response intercept(Chain chain) throws IOException{
                 Request original = chain.request();
                    // Request customization: add request headers
                    Request.Builder requestBuilder =original.newBuilder().
                            method(original.method(), original.body());
                    Request request = requestBuilder.build();
                    return chain.proceed(request);
                }
            })
            .addInterceptor(interceptor).connectTimeout(60,TimeUnit.SECONDS).readTimeout(60, TimeUnit.SECONDS).build();

    Retrofit retrofit = new Retrofit.Builder().baseUrl("https://locodealapi.herokuapp.com/")
            .addConverterFactory(GsonConverterFactory.create())
            .client(okHttpClient).build();
    UserApi userApi = retrofit.create(UserApi.class);
    Call<ResponseBody> call = userApi.deals("your token");
    call.enqueue(new Callback<ResponseBody>() {
        @Override
        public void onResponse(Call<ResponseBody> call,retrofit2.Response<ResponseBody> response) {
        }
        @Override
        public void onFailure(Call<ResponseBody> call, Throwable t) {}
    });
}

@GET(“api/交易”) 调用 deal(@Header("x-access-token") String x_access_token);

1
投票

今天的问候！

试试这个：

@FormUrlEncoded
@POST("/api/deals")
    Call<ResponseBody> deals(@Header("x-access-token") String x_access_token, @Field("<parameter_name>") String parameter);

调用api如下：

 Call<ResponseBody> call = client.deals(token,"<parameter>");

在这里，我假设 API 有一个参数，可以作为 deal() 方法中的第二个参数传递。您可以传递多个参数作为方法的参数。

请参阅以下链接了解更多详情： https://futurestud.io/tutorials/retrofit-send-data-form-urlencoded

我希望这能解决您的问题。如果没有，请提供您要调用的 API 的完整详细信息。

0
投票

A 

400 response
表示您的请求与服务器之间存在分歧，但请求已创建、发送，并且响应已解析。这意味着 
Retrofit
工作正常。您可以使用 OkHttp 的日志拦截器来记录原始请求并将其与服务器期望的内容进行比较。

您的 

Response
尺寸约为 
5.96 MB
。这反应太大了。您可以实现分页或类似的分解数据的方法，而不是在单个响应中接收这么多数据。这可能是原因之一。

0
投票
//Your Main connection Class

public class ApiClient {
public static final int DEFAULT_TIMEOUT_SEC = 90;
public static OkHttpClient client;
private static Retrofit retrofit = null;

public static Retrofit getClient() {

    OkHttpClient.Builder httpClient = new OkHttpClient.Builder()
            .connectTimeout(DEFAULT_TIMEOUT_SEC, TimeUnit.SECONDS)
            .readTimeout(DEFAULT_TIMEOUT_SEC, TimeUnit.SECONDS)
            .writeTimeout(DEFAULT_TIMEOUT_SEC, TimeUnit.SECONDS);

    httpClient.addInterceptor(new Interceptor() {
        @Override
        public Response intercept(Interceptor.Chain chain) throws IOException {
            Request original = chain.request();
            System.out.println("API_KEY"+PrefManager.getActiveInstance(RecrouteCandidateApplication.getsCurrentContext()).getDeviceToken());
            Request request = original.newBuilder()
                    .header("x-access-token",YOUR_ACCESS_TOKEN"")
                    .method(original.method(), original.body())
                    .build();

            return chain.proceed(request);
        }
    });

   //For logging the call on Logcat
    HttpLoggingInterceptor interceptor1 = new HttpLoggingInterceptor();
    interceptor1.setLevel(HttpLoggingInterceptor.Level.BODY);
    httpClient.addInterceptor(interceptor1);
    client = httpClient.build();

    if (retrofit == null) {
        retrofit = new Retrofit.Builder()
                .baseUrl(AppConstants.BASE_URL)
                .client(client)
                .addConverterFactory(GsonConverterFactory.create())
                .build();
    }
    return retrofit;
}

在您的班级中使用，这将像这样启动连接

ApiInterface apiService =
                ApiClient.getClient().create(ApiInterface.class);

这将是你的 Api 接口

public interface ApiInterface {

@POST("Your url here")
Call<JsonObject> sampleMethod();
/*For non-empty body use this*/
//Call<JsonObject> getSignUpResponse(@Body JsonObject register);

//For form data use this
@FormUrlEncoded
@POST("Your url here")
Call<String> sampleMethod1(@Field(value= "param1_key", encoded = true) String param1_value);

 }

对 json 进行这样的调用

JsonObject obj= new JsonObject();
obj.addProperty("key1","keyvalue");

Call<JsonObject> call = apiService.sample1(obj);
                            call.enqueue(new Callback<JsonObject>() {
                                @Override
                                public void onResponse(Call<JsonObject> call, Response<JsonObject> response) {
                                    if (response.body().get("status").getAsString().equals("1")) {
                                        Toast.makeText(context, response.body().get("msg").getAsString(), Toast.LENGTH_LONG).show();
                                    } else {
                                        Toast.makeText(context, response.body().get("msg").getAsString(), Toast.LENGTH_LONG).show();
                                    }
                                }

                                @Override
                                public void onFailure(Call<JsonObject> call, Throwable t) {
                                    Toast.makeText(context, AppConstants.NO_DATA_AVAILABLE, Toast.LENGTH_LONG).show();
                                }
                            });
0
投票

对我来说，问题是因为我在 Gson 构建器中有这一行：

 .excludeFieldsWithoutExposeAnnotation()

使用上面的行，如果模型类中未使用 

@Exposed
注释进行注释，则在改造中作为主体发送的所有字段都将被忽略。 删除
.excludeFieldsWithoutExposeAnnotation()
解决了我的问题。

0
投票

要处理响应中的 400 Bad Request 错误，请使用以下代码。

         if (response.isSuccessful()) {
            if (response.body().getStatus().equals(1)) {
                progressBar.setVisibility(View.GONE);
                Toast.makeText(UploadPDFActivity.this, "Success", 
        Toast.LENGTH_SHORT).show();
            }
        } else {
            int statusCode = response.code();
            Log.e("hello 4001", "else condition");

            if (statusCode == 400) {
                progressBar.setVisibility(View.GONE);
                if (!response.isSuccessful()) {
                    JSONObject jsonObject = null;
                    try {
                        jsonObject = new JSONObject(response.errorBody().string());
                        String entityId = jsonObject.getString("entity_id");
                        String errorMessage = jsonObject.getString("message");
                        String errorStatus = jsonObject.getString("status");
                        Log.e("hello entityId", entityId);
                        Log.e("hello errorMessage", errorMessage);
                        Log.e("hello errorStatus", errorStatus);
                        Toast.makeText(UploadPDFActivity.this, errorMessage, Toast.LENGTH_SHORT).show();

                    } catch (JSONException | IOException e) {
                        e.printStackTrace();
                    }
                }

                 }
                  else {
                // Handle other error cases
            }
        }
    }
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