Question

当我无法从服务器解析json时，我尝试收集情况。我可以看到服务器使用实现Interceptor的类给了我什么。（LoggingInterceptor）但是，我似乎无法获得＆＃39; onFailure（）＆＃39;中的价值，我需要收集错误。因为它只提供＆＃39; Call＆＃39;并且＆＃39; Throwable＆＃39;。如何在＆＃39; onFailure（）＆＃39;？

中从服务器获取原始数据

以下是我的代码。

LoggingInterceptor

public class LoggingInterceptor implements Interceptor {

//로그에 쓰일 tag
private static final String TAG = CalyApplication.class.getSimpleName() + "/" + LoggingInterceptor.class.getSimpleName();

@Override
public Response intercept(Chain chain) throws IOException {
    Request request = chain.request();

    long t1 = System.nanoTime();
    Response response = chain.proceed(request);
    long t2 = System.nanoTime();
    String responseString = new String(response.body().bytes());

    //yes, I can see response in here. but I need it in 'onFailure()'.
    Logger.i(TAG, "code : " + response.code() + "\n" + responseString);


    return  response.newBuilder()
            .body(ResponseBody.create(response.body().contentType(), responseString))
            .build();
    }

}

Actrivity

void fetchData(){

    ApiClient.getService().test(
            "test"
    ).enqueue(new Callback<BasicResponse>() {
        @Override
        public void onResponse(Call<BasicResponse> call, Response<BasicResponse> response) {
            BasicResponse body = response.body();
            switch (response.code()){
                case 200:
                    break;
                default:
                    break;
            }
        }

        @Override
        public void onFailure(Call<BasicResponse> call, Throwable t) {
            //I want get Response object in here!
            //but it only provides Call&Throwable
        }
    });
}

谢谢！

Answer 1

如果您获得4xx或5xx（错误）状态代码，则调用onResponse，而不是onFailure 。只有在呼叫成功时才会得到响应正文（2xx）或错误正文。所以在onResponse中你应该有以下结构：

if (response.isSuccessful()) {
   // Get response body
} else if (response.errorBody() != null) {
   // Get response errorBody 
   String errorBody = response.errorBody().string();
}

修改：有关如何检索errorBody的更多信息，请访问here。

retrofit2在onFailure中得到responseBody（）

1 个答案: