从应用程序发送的字节在服务器上无法正确读取

Question

我正在使用Android的this库（android-upload-service）上传文件。它在local server上适用于所有类型的媒体，但是当我将它发送到Java Server时，服务器读取最后几个字节。例如对于5 MB的文件，服务器只读取71个字节。

对于同一台服务器，可以从iOS设备上传文件。上传文件时可能出现什么问题？

这是我用来在服务器上上传文件的代码

    MultipartUploadRequest request = new MultipartUploadRequest(context, BuildConfig.SERVER_URL + EndPoints.FILE_UPLOAD);
    if (report.isFileUri()) {
        request.addFileToUpload(new File(report.getContentUri().getPath()).getAbsolutePath(), "file");
    } else {
        request.addFileToUpload(report.getContentUri().toString(), "file");
    } 

    RequestHeaders requestHeaders = new NactaEaseConfig().defaultHeaders(context);
    if (requestHeaders == null) {
        throw new Exception("Required headers are not available. Quitting.");
    }

    request.addHeader(EaseRequest.TOKEN_KEY, EaseTokenManager.getToken(context));

    Map<String, String> headers = requestHeaders.get();
    for (String key : headers.keySet()) {
        request.addHeader(key, headers.get(key));
    }

    request.addParameter("reportedLive", report.getLiveReportingString())
            .addParameter("draftsCreatedDate", report.getFormattedTimeForUpload())
            .addParameter("incident_type", report.getReportType())
            .addParameter("file", report.getFileName())
            .addParameter("incident_location", report.getCompleteAddress())
            .addParameter("app_user_location", report.getLocation())
            .addParameter("show_identity", report.getShareNumberString())
            .addParameter("description", report.getDetails())
            .addParameter("mobile_number", user.getMobileNumber())
            .addParameter("area_name", report.getArea())
            .addParameter("city_name", report.getCity())
            .addParameter("content_type", report.getServiceContentType())
            .setMaxRetries(0);
    request.startUpload();

这些是我上传文件时得到的日志。

D/UploadService: UploadRequest - null or empty upload ID. Generating it
D/UploadService: UploadRequest - Created new upload request to http://124.109.32.137:8080/NACTA/REST/Communicator/FileUpload with ID: 1034ab15-a10c-41c6-8f36-5697b4dffb81
D/UploadService: MultipartUploadRequest - Auto-detected MIME type for content://com.android.providers.media.documents/document/video%3A146 is: video/mp4
D/UploadService: MultipartUploadRequest - Using original file name: VID_20171216_223940.mp4
I/UploadService: UploadService - Starting service with namespace: com.es.tatheer, upload pool size: 2, 5s idle thread keep alive time. Foreground execution is enabled
D/UploadService: UploadService - Successfully created new task with class: net.gotev.uploadservice.MultipartUploadTask
D/UploadService: FileUploader - Starting upload task with ID 1034ab15-a10c-41c6-8f36-5697b4dffb81
D/UploadService: MultipartUploadTask - 466841
D/UploadService: OkHttpStackConnection - creating new connection
D/UploadService: UploadTask - Broadcasting upload progress for 1034ab15-a10c-41c6-8f36-5697b4dffb81: 103 bytes of 468370
D/UploadService: UploadTask - Broadcasting upload progress for 1034ab15-a10c-41c6-8f36-5697b4dffb81: 361928 bytes of 468370
D/UploadService: MultipartUploadTask - 468323
D/UploadService: UploadTask - Broadcasting upload progress for 1034ab15-a10c-41c6-8f36-5697b4dffb81: 468370 bytes of 468370
D/UploadService: FileUploader - Server responded with HTTP 200 to upload with ID: 1034ab15-a10c-41c6-8f36-5697b4dffb81
D/UploadService: UploadTask - Broadcasting upload completed for 1034ab15-a10c-41c6-8f36-5697b4dffb81
D/UploadService: UploadService - All tasks completed, stopping foreground execution
I/UploadService: UploadService - Service will be shut down in 10000ms if no new tasks are received
D/UploadService: OkHttpStackConnection - closing connection
I/UploadService: UploadService - Service is about to be stopped because idle timeout of 10000ms has been reached
D/UploadService: UploadService - Stopping foreground execution
D/UploadService: UploadService - UploadService destroyed

Answer 1

如果没有其他信息，我将首先怀疑您将内容作为多部分发送。那么几个问题：

• 您的Java服务器是否处理多部分内容？如果没有，那可能是你的问题。
• 你能检查一下你提到的71个字节是否真的是你发送的文件的最后一个字节？如果是，则可能问题是内容是作为分块编码发送的，并且服务器仅保留最后一个块。

鉴于您使用的是HTTP而不是HTTPS，您可以轻松使用Charles Proxy等工具来诊断它。也可用于比较您的iOS和Android应用程序，因为据我所知他们使用不同的库和可能不同的数据编码。