我试图使用RxJava和Retrofit(2.3)进行请求。我期待如果有任何错误,我可以重试或向客户端显示消息。然而,我注意到有时我有一个SocketException,导致不会调用onError,显然该请求的订阅者只是退订而没有调用任何其他(而不是onComplete onError)。任何人都知道为什么会发生这种情况,我怎样才能以通用的方式解决这个问题(没有简单地做onUnsubscribe()并检查observable是否没有发送onError或onComplete)?SocketException在没有onError的情况下取消订阅请求
在我的界面我有这样的事情:
@GET("userInfo")
Observable<List<UserInfo>> getUserInfo(@Header("token") String token);
这是我创造我观察到:
public Observable<UserModel> requestUserInfo(final String token) {
return mService.getUserInfo(token)
.retryWhen(new RetryWithDelay(HTTP_RETRIES), HTTP_TIME_BETWEEN_RETRIES)))
.flatMap(new Func1<List<UserInfo>, Observable<UserModel>() {
@Override
public Observable<UserModel> call(List<UserInfo> userInfo) {
return Observable.just(new UserModel(userInfo));
}
});
}
------ UPDATE ------ -
这就是我如何在我的演示者上调用requestUserInfo方法
private CompositeSubscription mCompositeSubscription = null;
public PresenterX(ViewX view) {
...
mCompositeSubscription = new CompositeSubscription();
}
public void getUserModel() {
String userToken = new AccessModel().getUserToken();
mCompositeSubscription.add(mNetworkRequestModel.requestUserInfo(userToken)
.flatMap(new Func1<UserModel, Observable<UserModel>>() {
@Override
public Observable<UserModel> call(UserModel userModel) {
if (userModel != null) {
saveUserModel(userModel); //sync saving
return Observable.just(userModel);
} else {
return Observable.error(new SaveException());
}
}
})
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Subscriber<UserModel>() {
@Override
public void onCompleted() {
Log.i(TAG, "Subscriber was completed")
}
@Override
public void onError(Throwable e) {
Log.i(TAG, "Subscriber called onError")
mView.handleErrors(e);
}
@Override
public void onNext(UserModel userModel) {
Log.i(TAG, "Subscriber called onNext")
mView.populateUserInfo(userModel);
}
}));
}
//called by activity when onDestroyMethod is called
//I assume this is not called as I have other requests running parallelly to this getUserModel() and they are not terminated, despite having other compositeSubscription to manage those
public void onDestroy(){
mCompositeSubscription.clear();
}
因为我有一个HttpLoggingInterceptor,这是在请求突然停止时打印给我的唯一日志。
HttpLoggingInterceptor logging = new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {
@Override
public void log(String message) {
LOG.info(Thread.currentThread(), String.format("%s", message));
}
});
这里是日志例外:
I/ExampleApp-ApiClient(21338): : Thread: 1343 | <-- HTTP FAILED: java.net.SocketException: Socket closed
请包含代码,其中调用Observable.subscribe。取消订阅或“onError”问题发生在这些端点。 – Kiskae