Question

我们正在开发一个应该使用Http / 2连接到我们的Azure应用服务的Android应用程序。在Azure App Service上，我们使用以下博文中的步骤启用了Http / 2：https://blogs.msdn.microsoft.com/appserviceteam/2018/04/13/announcing-http2-support-in-azure-app-service/

我们的请求以Mutual SSL保护，因此应用程序必须发送它的客户端证书。

当我们尝试使用OkHttp执行对我们的应用服务的调用时，我们总是会收到以下错误和堆栈跟踪。当我们尝试使用相同的Android代码调用twitter api时，这是有效的。

有人知道如何解决这个问题吗？

我们正在使用OkHttp版本3.10.0。

堆栈跟踪：

    06-08 15:54:00.173 31318-31351/be.wgkovl.evdt W/be.wgkovl.evdt.utils.BaseService: stream was reset: HTTP_1_1_REQUIREDokhttp3.internal.http2.StreamResetException: stream was reset: HTTP_1_1_REQUIRED
                at okhttp3.internal.http2.Http2Stream.takeResponseHeaders(Http2Stream.java:153) ~[na:0.0]
                at okhttp3.internal.http2.Http2Codec.readResponseHeaders(Http2Codec.java:125) ~[na:0.0]
                at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:88) ~[na:0.0]
                at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[na:0.0]
                at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45) ~[na:0.0]
                at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[na:0.0]
                at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[na:0.0]
                at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) ~[na:0.0]
                at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[na:0.0]
                at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[na:0.0]
                at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) ~[na:0.0]
                at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[na:0.0]
                at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:126) ~[na:0.0]
                at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[na:0.0]
                at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[na:0.0]
                at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200) ~[na:0.0]
                at okhttp3.RealCall.execute(RealCall.java:77) ~[na:0.0]
                at be.wgkovl.evdt.utils.BaseService.executeRequest(BaseService.java:277) ~[na:0.0]
                at be.wgkovl.evdt.service.UserManagementService$1.doInBackground(UserManagementService.java:123) ~[na:0.0]
                at be.wgkovl.evdt.service.UserManagementService$1.doInBackground(UserManagementService.java:101) ~[na:0.0]
                at android.os.AsyncTask$2.call(AsyncTask.java:295) ~[na:0.0]
                at java.util.concurrent.FutureTask.run(FutureTask.java:237) ~[na:0.0]
                at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) ~[na:0.0]
                at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) ~[na:0.0]
                at java.lang.Thread.run(Thread.java:818) ~[na:0.0]

Answer 1

将此行添加到构建器中

.protocols(Util.immutableList(Protocol.HTTP_1_1))

像这样

 private OkHttpClient client = new OkHttpClient.Builder()
            .protocols(Util.immutableList(Protocol.HTTP_1_1))
            .build();

Answer 2

HTTP / 2目前并不真正支持客户端证书 - 尤其是当此类连接仅适用于服务器上的某些资源时。有a proposal to allow this，但尚未标准化，AFAIK尚未得到任何实施的支持。

在支持此功能之前，the correct response is to suggest a downgrade to HTTP/1.1带有HTTP_1_1_REQUIRED错误代码，客户端应使用HTTP / 1.1重试。

Other implementations执行此操作以及Azure。

OkHttp Android流已重置：HTTP_1_1_REQUIRED

2 个答案: