Question

一般说明
当我在短时间内发送多个请求时，其中一些请求永远不会得到响应或错误。

API
我有一个单件类，它在其中保持改造服务。我使用这个类来执行对api的所有调用，每次调用都返回带有某种数据的Observable。

public class CoreApi {

    public static final String BASE_URL = "https://www.example.com/";

    private static CoreApi instance;

    private CoreApiService service;

    public static CoreApi get() {
        if (instance == null)
            instance = new CoreApi();
        retrun instance;
    }

    private CoreApi() {

        HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor();
        httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);

        OkHttpClient.Builder httpClient = new OkHttpClient.Builder();

        if (BuildConfig.DEBUG)
            httpClient.addInterceptor(httpLoggingInterceptor);

        httpClient.connectTimeout(60, TimeUnit.SECONDS);
        httpClient.readTimeout(60, TimeUnit.SECONDS);

        Retrofit.Builder builder = new Retrofit.Builder()
            .baseUrl(BASE_URL)
            .addConverterFactory(GsonConverterFactory.create())
            .addCallAdapterFactory(RxErrorHandlingCallAdapterFactory.create())
            .client(httpClient.build());

        service = (builder.build()).create(CoreApiService.class);
    }

    public Observable<SomeData> getSomedata(String authorization) {
            return service.getSomeData(authorization);
    }

}

服务

interface CoreApiService {
    @GET("someDataEndpoint/")
    Observable<SomeData> getSomeData(@Header("Authorization") String authorizationToken);
}

拨打
我在活动中设置了一个按钮，每次单击它时，它都会调用api：

Button button = (Button) findViewById(R.id.test_button);
button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    CoreApi.get().getSomeData("JWT thisisexampletokenreplacedforthesakeofthisquestion")
                        .subscribeOn(Schedulers.io())
                        .observeOn(Schedulers.io())
                        .subscribe(new Action1<SomeData>() {
                            @Override
                            public void call(SomeData someData) {
                                 // operations are performed on data, irrelevant for the issue as even if I comment them the issue still occurs
                            }
                    });
                }
            });

问题
每当我点击按钮（不是太快），在日志中我都可以看到请求是通过改造来完成的。但是当我开始更快地点击按钮时，我可以在日志中看到请求正在发送，但并非所有请求都会收到响应。没有错误，没有超时，没什么。在logcat中，我只能看到请求已经发出（见下文）。

09-19 11:26:05.421 18763-18821/com.myapp.app D/OkHttp: --> GET https://www.example.com/someDataEndpoint/ http/1.1
09-19 11:26:05.421 18763-18821/com.myapp.app D/OkHttp: Authorization: JWT thisisexampletokenreplacedforthesakeofthisquestion
09-19 11:26:05.422 18763-18821/com.myapp.app D/OkHttp: --> END GET

概要
上面的示例已经过简化，但只有在短时间内有很多调用（不一定是同一个端点）时才会出现此问题。起初我注意到，当我的HandlerThread负责从指定序列中的几个端点刷新用户数据时开始陷入随机点，有时是第2次，有时是第10次调用，有时是介于两者之间。奇怪的是，在其中一个电话卡住之后，我仍然可以在应用程序的其他地方执行其他调用。

Answer 1

  func application(_ application: UIApplication,
    continue userActivity: NSUserActivity,
    restorationHandler: @escaping ([Any]?) -> Void) -> Bool {

      guard userActivity.activityType == Employee.domainIdentifier,
        let objectId = userActivity.userInfo?["id"] as? String else {
          return false
      }

      if let nav = window?.rootViewController as? UINavigationController,
        let listVC = nav.viewControllers.first as? EmployeeListViewController,
        let employee = EmployeeService().employeeWithObjectId(objectId) {
          nav.popToRootViewController(animated: false)

          let employeeViewController = listVC
            .storyboard?
            .instantiateViewController(withIdentifier: "EmployeeView") as!
          EmployeeViewController

          employeeViewController.employee = employee
          nav.pushViewController(employeeViewController, animated: false)
          return true
      }

      return false
  }

您在授权标头中传递字符串而不是实际值。将授权令牌代码更改为值而不是键。

正在发送多个改装调用，但有些调用从未收到响应或错误

1 个答案: