改造2 - 空响应体 [英] Retrofit 2 - null response body

问题描述

我想下面的响应与转换改造2

{
    "errorNumber":4,
    "status":0,
    "message":"G\u00f6nderilen de\u011ferler kontrol edilmeli",
    "validate":[
        "Daha \u00f6nceden bu email ile kay\u0131t olunmu\u015f. L\u00fctfen giri\u015f yapmay\u0131 deneyiniz."
    ]
}

但我得到永诺在 onResponse 方法空响应。所以，我想看看与 response.errorBody.string响应的错误体（）。错误体内含有与原料反应完全相同的内容。

But I am allways getting null response in onResponse method. So I tried to look at error body of the response with response.errorBody.string(). Error body contains exactly same content with raw response.

下面是我的服务方法，改造对象和响应数据declerations：

Here is my service method, Retrofit object and response data declerations:

@FormUrlEncoded
@POST("/Register")
@Headers("Content-Type: application/x-www-form-urlencoded")
Call<RegisterResponse> register(
        @Field("fullName")  String fullName,
        @Field("email")     String email,
        @Field("password")  String password);

public class RegisterResponse {
    public int status;
    public String message;
    public int errorNumber;
    public List<String> validate;
}

OkHttpClient client = new OkHttpClient();
client.interceptors().add(new Interceptor() {
    @Override
    public Response intercept(Chain chain) throws IOException {
        Response response = chain.proceed(chain.request());
        final String content = UtilityMethods.convertResponseToString(response);
        Log.d(TAG, lastCalledMethodName + " - " + content);
        return response.newBuilder().body(ResponseBody.create(response.body().contentType(), content)).build();
    }
});
Retrofit retrofit = new Retrofit.Builder()
        .baseUrl(BASE_URL)
        .addConverterFactory(GsonConverterFactory.create())
        .client(client)
        .build();
domainSearchWebServices = retrofit.create(DomainSearchWebServices.class);

我已经控制响应 JSON 使用 jsonschema2pojo 来看看我modled我响应类赖特，似乎确定。

I have controlled response JSON with jsonschema2pojo to see if I modled my response class wright and it seems OK.

为什么要改造未能我的反应转换？

Why Retrofit fails to convert my response?

更新

现在作为一个工作围绕我建设从错误我的身体反应。

For now as a work around I am building my response from error body.

推荐答案

我已经解决了这个问题。当我做一个坏的请求（HTTP 400）改造不转换的响应。在这种情况下，您可以访问 response.errorBody.string原始响应（）。之后，你可以创建一个新GSON并手动将它转换：

I have solved the problem. When I make a bad request (HTTP 400) Retrofit doesn't convert the response. In this case you can access the raw response with response.errorBody.string(). After that you can create a new Gson and convert it manually:

if (response.code() == 400 ) {
    Log.d(TAG, "onResponse - Status : " + response.code());
    Gson gson = new Gson();
    TypeAdapter<RegisterResponse> adapter = gson.getAdapter(RegisterResponse.class);
    try {
        if (response.errorBody() != null)
            registerResponse = 
                adapter.fromJson(
                    response.errorBody().string());
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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