Retrofit API调用接收" HTTP FAILED:java.io.IOException:已取消"

时间:2016-11-26 21:04:59

标签: android rx-java retrofit2 rx-android okhttp3

无法弄清楚为什么会这样。我的调用不会触发任何一个rx回调(onCompleted(),onError(),onNext())。我收到的唯一的东西是这个okhttp输出:

D/OkHttp: --> GET https://api.privatbank.ua/p24api/exchange_rates?json=true&date=20.11.2016 http/1.1
D/OkHttp: --> END GET
D/OkHttp: <-- HTTP FAILED: java.io.IOException: Canceled

改造模块:

@Module
public class RestModule {

    @Provides
    @Singleton
    public HttpLoggingInterceptor providesHttpLogginInterceptor() {
        return new HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY);
    }

    @Provides
    @Singleton
    public OkHttpClient providesOkHttpClient(@NonNull HttpLoggingInterceptor loggingInterceptor) {
        return new OkHttpClient.Builder()
            .addInterceptor(loggingInterceptor)
            .connectTimeout(ConstantsManager.CONNECTION_TIME_OUT, TimeUnit.SECONDS)
            .readTimeout(ConstantsManager.READ_TIME_OUT, TimeUnit.SECONDS)
            .build();
    }

    @Provides
    @Singleton
    public Gson providesGson() {
        return new GsonBuilder().create();
    }

    @Provides
    @Singleton
    public Retrofit providesRetrofit(@NonNull OkHttpClient okHttpClient, @NonNull Gson gson) {
        return new Retrofit.Builder()
            .baseUrl(ConstantsManager.BASE_URL)
            .client(okHttpClient)
            .addConverterFactory(SimpleXmlConverterFactory.create())
            .addConverterFactory(GsonConverterFactory.create(gson))
            .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
            .build();
    }

    @Provides
    @Singleton
    public PrivatbankApi providesPrivatbankApi(@NonNull Retrofit retrofit) {
        return retrofit.create(PrivatbankApi.class);
    }
}

API接口:

public interface PrivatbankApi {

    @GET
    Observable<CurrentRates> loadCurrentRates(@NonNull @Url String url);

    @GET("exchange_rates")
    Observable<DateRates> loadDateRates(@NonNull @Query("json") Boolean json, @NonNull @Query("date") String date);

}

订阅:

subscription = dataManager.loadDateRates(date)
                .subscribeOn(Schedulers.io())
                .doAfterTerminate(() -> {
                })
                .subscribe(dateRates -> {
                    // My code here...
                }, throwable -> {
                    Timber.e(throwable, "Error while loading data occurred!");
                });

顺便说一下,两个调用都会出现同样的错误:

D/OkHttp: --> GET https://privat24.privatbank.ua/p24/accountorder?oper=prp&PUREXML&apicour&country=ua http/1.1
D/OkHttp: --> END GET
D/OkHttp: <-- HTTP FAILED: java.io.IOException: Canceled
D/OkHttp: --> GET https://api.privatbank.ua/p24api/exchange_rates?json=true&date=20.11.2016 http/1.1
D/OkHttp: --> END GET
D/OkHttp: <-- HTTP FAILED: java.io.IOException: Canceled

4 个答案:

答案 0 :(得分:47)

如果用户取消请求,则抛出该异常。使用RxJavaCallAdapterFactory时,如果在呼叫完成之前取消订阅,则会发生这种情况。所以我想在你做完电话后的某个时刻,你会subscription.unsubscribe()取消基础请求。

答案 1 :(得分:0)

感谢@Kiskae。这给了我正确的提示。在我的情况下,我使用了CompositeSubscription并在其他方法取消订阅后添加了订阅。

/**
 * Adds a new {@link Subscription} to this {@code CompositeSubscription} if the
 * {@code CompositeSubscription} is not yet unsubscribed. If the {@code CompositeSubscription} <em>is</em>
 * unsubscribed, {@code add} will indicate this by explicitly unsubscribing the new {@code Subscription} as
 * well.
 *
 * @param s
 *         the {@link Subscription} to add
 */

答案 2 :(得分:0)

对我有用的是更换不推荐使用的呼叫适配器:

implementation 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'

具有:

implementation 'com.squareup.retrofit2:adapter-rxjava2:2.9.0'

这帮助我解决了这个问题,每次都会调用onError()。 有关更多信息:https://github.com/JakeWharton/retrofit2-rxjava2-adapter

答案 3 :(得分:0)

我遇到了同样的问题,但在我的情况下,当两个请求在同一CompositeDisposable中进行订阅时,其中一个被取消。我的意思是那两个请求是并行完成的。

我的解决方案:我只定义了两个不同的订阅渠道。