10

是的，这是一个很长的问题，包含很多细节......所以，我的问题是：如何将上传的内容分段流式传输到 Vimeo？

对于想要在自己的机器上进行复制和调试的任何人：以下是您需要的东西：

  • 我的代码在这里。
  • 包括在此处找到的 Scribe 库
  • 拥有一个至少大于 10 MB 的有效视频文件 (mp4) 并将其放在目录中C:\test.mp4或更改该代码以指向您所在的任何位置。
  • 就是这样！谢谢你的协助！

重大更新：我在这里的代码中为 Vimeo 留下了一个有效的 API 密钥和秘密。因此，只要您拥有 Vimeo 帐户，一旦您允许该应用程序并输入您的令牌，所有代码都应该可以正常工作。只需将该链接中的代码复制到您最喜欢的 IDE 上的项目中，看看您是否可以与我一起解决此问题。我会赏金给给我工作代码的人。谢谢！哦，不要指望长时间使用这个密钥和秘密。一旦这个问题得到解决，我会删除它。:)

问题概述：问题是当我将最后一个字节块发送到Vimeo然后验证上传时，响应返回所有内容的长度只是最后一个块的长度，而不是所有块组合的长度应该。

SSCCE 注意：我在这里有我的整个 SSCCE 。我把它放在别的地方，这样它就可以编译了。它不是很短（大约 300 行），但希望你发现它是自包含的，它肯定是一个E示例！）。但是，我在这篇文章中发布了我的代码的相关部分。

它是这样工作的：当您通过流式传输方法将视频上传到 Vimeo 时（请参阅此处的上传 API 文档以了解如何设置），您必须提供一些标头：端点、内容长度和内容类型. 文档说它忽略了任何其他标题。您还可以为您上传的文件提供字节信息的有效负载。然后签名并发送（我有一个方法可以使用scribe来完成）。

我的问题：当我只在一个请求中发送视频时，一切都很好。我的问题是，当我上传几个更大的文件时，我使用的计算机没有足够的内存来加载所有字节信息并将其放入 HTTP PUT 请求中，所以我必须将其拆分为1 MB 段。这就是事情变得棘手的地方。文档提到可以“恢复”上传，所以我试图用我的代码来做到这一点，但它的工作并不完全正确。下面，您将看到发送视频的代码。记住我的 SSCCE 在这里。

我尝试过的事情：我认为它与 Content-Range 标头有关...所以这是我尝试更改 Content-Range 标头所说的内容...

  • 不将内容范围标头添加到第一个块

  • 向内容范围标头添加前缀（每个都带有前一个标头的组合）：

    • “字节”
    • “bytes”（引发连接错误，请参阅错误的最底部）-> 在文档中显示这是他们正在寻找的内容，但我很确定文档中存在拼写错误，因为它们有他们的“简历”示例中的内容范围标题为：1001-339108/339108何时应该是1001-339107/339108. 是的...
    • “字节%20”
    • “字节：”
    • “字节：”
    • “字节=”
    • “字节=”

  • 不向内容范围标题添加任何内容作为前缀

这是代码：

/**
* Send the video data
*
* @return whether the video successfully sent
*/
private static boolean sendVideo(String endpoint, File file) throws FileNotFoundException, IOException {
  // Setup File
  long contentLength = file.length();
  String contentLengthString = Long.toString(contentLength);
  FileInputStream is = new FileInputStream(file);
  int bufferSize = 10485760; // 10 MB = 10485760 bytes
  byte[] bytesPortion = new byte[bufferSize];
  int byteNumber = 0;
  int maxAttempts = 1;
  while (is.read(bytesPortion, 0, bufferSize) != -1) {
    String contentRange = Integer.toString(byteNumber);
    long bytesLeft = contentLength - byteNumber;
    System.out.println(newline + newline + "Bytes Left: " + bytesLeft);
    if (bytesLeft < bufferSize) {
      //copy the bytesPortion array into a smaller array containing only the remaining bytes
      bytesPortion = Arrays.copyOf(bytesPortion, (int) bytesLeft);
      //This just makes it so it doesn't throw an IndexOutOfBounds exception on the next while iteration. It shouldn't get past another iteration
      bufferSize = (int) bytesLeft;
    }
    byteNumber += bytesPortion.length;
    contentRange += "-" + (byteNumber - 1) + "/" + contentLengthString;
    int attempts = 0;
    boolean success = false;
    while (attempts < maxAttempts && !success) {
      int bytesOnServer = sendVideoBytes("Test video", endpoint, contentLengthString, "video/mp4", contentRange, bytesPortion, first);
      if (bytesOnServer == byteNumber) {
        success = true;
      } else {
        System.out.println(bytesOnServer + " != " + byteNumber);
        System.out.println("Success is not true!");
      }
      attempts++;
    }
    first = true;
    if (!success) {
      return false;
    }
  }
  return true;
}

/**
* Sends the given bytes to the given endpoint
*
* @return the last byte on the server (from verifyUpload(endpoint))
*/
private static int sendVideoBytes(String videoTitle, String endpoint, String contentLength, String fileType, String contentRange, byte[] fileBytes, boolean addContentRange) throws FileNotFoundException, IOException {
  OAuthRequest request = new OAuthRequest(Verb.PUT, endpoint);
  request.addHeader("Content-Length", contentLength);
  request.addHeader("Content-Type", fileType);
  if (addContentRange) {
    request.addHeader("Content-Range", contentRangeHeaderPrefix + contentRange);
  }
  request.addPayload(fileBytes);
  Response response = signAndSendToVimeo(request, "sendVideo on " + videoTitle, false);
  if (response.getCode() != 200 && !response.isSuccessful()) {
    return -1;
  }
  return verifyUpload(endpoint);
}

/**
* Verifies the upload and returns whether it's successful
*
* @param endpoint to verify upload to
* @return the last byte on the server
*/
public static int verifyUpload(String endpoint) {
  // Verify the upload
  OAuthRequest request = new OAuthRequest(Verb.PUT, endpoint);
  request.addHeader("Content-Length", "0");
  request.addHeader("Content-Range", "bytes */*");
  Response response = signAndSendToVimeo(request, "verifyUpload to " + endpoint, true);
  if (response.getCode() != 308 || !response.isSuccessful()) {
    return -1;
  }
  String range = response.getHeader("Range");
  //range = "bytes=0-10485759"
  return Integer.parseInt(range.substring(range.lastIndexOf("-") + 1)) + 1;
  //The + 1 at the end is because Vimeo gives you 0-whatever byte where 0 = the first byte
}

这是 signAndSendToVimeo 方法：

/**
* Signs the request and sends it. Returns the response.
*
* @param service
* @param accessToken
* @param request
* @return response
*/
public static Response signAndSendToVimeo(OAuthRequest request, String description, boolean printBody) throws org.scribe.exceptions.OAuthException {
  System.out.println(newline + newline
          + "Signing " + description + " request:"
          + ((printBody && !request.getBodyContents().isEmpty()) ? newline + "\tBody Contents:" + request.getBodyContents() : "")
          + ((!request.getHeaders().isEmpty()) ? newline + "\tHeaders: " + request.getHeaders() : ""));
  service.signRequest(accessToken, request);
  printRequest(request, description);
  Response response = request.send();
  printResponse(response, description, printBody);
  return response;
}

这里是 printRequest 和 printResponse 方法的输出的一些（一个例子......所有的输出都可以在这里找到）：注意这个输出会根据contentRangeHeaderPrefix设置的内容和first布尔值的设置（指定是否不要在第一个块上包含 Content-Range 标头）。

We're sending the video for upload!


Bytes Left: 15125120


Signing sendVideo on Test video request:
    Headers: {Content-Length=15125120, Content-Type=video/mp4, Content-Range=bytes%200-10485759/15125120}

sendVideo on Test video >>> Request
Headers: {Authorization=OAuth oauth_signature="zUdkaaoJyvz%2Bt6zoMvAFvX0DRkc%3D", oauth_version="1.0", oauth_nonce="340477132", oauth_signature_method="HMAC-SHA1", oauth_consumer_key="5cb447d1fc4c3308e2c6531e45bcadf1", oauth_token="460633205c55d3f1806bcab04174ae09", oauth_timestamp="1334336004", Content-Length=15125120, Content-Type=video/mp4, Content-Range=bytes: 0-10485759/15125120}
Verb: PUT
Complete URL: http://174.129.125.96:8080/upload?ticket_id=5ea64d64547e38e5e3c121852b2d306d

sendVideo on Test video >>> Response
Code: 200
Headers: {null=HTTP/1.1 200 OK, Content-Length=0, Connection=close, Content-Type=text/plain, Server=Vimeo/1.0}


Signing verifyUpload to http://174.129.125.96:8080/upload?ticket_id=5ea64d64547e38e5e3c121852b2d306d request:
    Headers: {Content-Length=0, Content-Range=bytes */*}

verifyUpload to http://174.129.125.96:8080/upload?ticket_id=5ea64d64547e38e5e3c121852b2d306d >>> Request
Headers: {Authorization=OAuth oauth_signature="FQg8HJe84nrUTdyvMJGM37dpNpI%3D", oauth_version="1.0", oauth_nonce="298157825", oauth_signature_method="HMAC-SHA1", oauth_consumer_key="5cb447d1fc4c3308e2c6531e45bcadf1", oauth_token="460633205c55d3f1806bcab04174ae09", oauth_timestamp="1334336015", Content-Length=0, Content-Range=bytes */*}
Verb: PUT
Complete URL: http://174.129.125.96:8080/upload?ticket_id=5ea64d64547e38e5e3c121852b2d306d

verifyUpload to http://174.129.125.96:8080/upload?ticket_id=5ea64d64547e38e5e3c121852b2d306d >>> Response
Code: 308
Headers: {null=HTTP/1.1 308 Resume Incomplete, Range=bytes=0-10485759, Content-Length=0, Connection=close, Content-Type=text/plain, Server=Vimeo/1.0}
Body: 


Bytes Left: 4639360


Signing sendVideo on Test video request:
    Headers: {Content-Length=15125120, Content-Type=video/mp4, Content-Range=bytes: 10485760-15125119/15125120}

sendVideo on Test video >>> Request
Headers: {Authorization=OAuth oauth_signature="qspQBu42HVhQ7sDpzKGeu3%2Bn8tM%3D", oauth_version="1.0", oauth_nonce="183131870", oauth_signature_method="HMAC-SHA1", oauth_consumer_key="5cb447d1fc4c3308e2c6531e45bcadf1", oauth_token="460633205c55d3f1806bcab04174ae09", oauth_timestamp="1334336015", Content-Length=15125120, Content-Type=video/mp4, Content-Range=bytes%2010485760-15125119/15125120}
Verb: PUT
Complete URL: http://174.129.125.96:8080/upload?ticket_id=5ea64d64547e38e5e3c121852b2d306d

sendVideo on Test video >>> Response
Code: 200
Headers: {null=HTTP/1.1 200 OK, Content-Length=0, Connection=close, Content-Type=text/plain, Server=Vimeo/1.0}


Signing verifyUpload to http://174.129.125.96:8080/upload?ticket_id=5ea64d64547e38e5e3c121852b2d306d request:
    Headers: {Content-Length=0, Content-Range=bytes */*}

verifyUpload to http://174.129.125.96:8080/upload?ticket_id=5ea64d64547e38e5e3c121852b2d306d >>> Request
Headers: {Authorization=OAuth oauth_signature="IdhhhBryzCa5eYqSPKAQfnVFpIg%3D", oauth_version="1.0", oauth_nonce="442087608", oauth_signature_method="HMAC-SHA1", oauth_consumer_key="5cb447d1fc4c3308e2c6531e45bcadf1", oauth_token="460633205c55d3f1806bcab04174ae09", oauth_timestamp="1334336020", Content-Length=0, Content-Range=bytes */*}
Verb: PUT
Complete URL: http://174.129.125.96:8080/upload?ticket_id=5ea64d64547e38e5e3c121852b2d306d

4639359 != 15125120
verifyUpload to http://174.129.125.96:8080/upload?ticket_id=5ea64d64547e38e5e3c121852b2d306d >>> Response
Success is not true!
Code: 308
Headers: {null=HTTP/1.1 308 Resume Incomplete, Range=bytes=0-4639359, Content-Length=0, Connection=close, Content-Type=text/plain, Server=Vimeo/1.0}
Body:

然后代码继续完成上传和设置视频信息（你可以在我的完整代码中看到）。

编辑 2：尝试从内容范围中删除“%20”并收到此错误建立连接。我必须使用“bytes%20”或根本不添加“bytes”......

Exception in thread "main" org.scribe.exceptions.OAuthException: Problems while creating connection.
    at org.scribe.model.Request.send(Request.java:70)
    at org.scribe.model.OAuthRequest.send(OAuthRequest.java:12)
    at autouploadermodel.VimeoTest.signAndSendToVimeo(VimeoTest.java:282)
    at autouploadermodel.VimeoTest.sendVideoBytes(VimeoTest.java:130)
    at autouploadermodel.VimeoTest.sendVideo(VimeoTest.java:105)
    at autouploadermodel.VimeoTest.main(VimeoTest.java:62)
Caused by: java.io.IOException: Error writing to server
    at sun.net.www.protocol.http.HttpURLConnection.writeRequests(HttpURLConnection.java:622)
    at sun.net.www.protocol.http.HttpURLConnection.writeRequests(HttpURLConnection.java:634)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1317)
    at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:468)
    at org.scribe.model.Response.<init>(Response.java:28)
    at org.scribe.model.Request.doSend(Request.java:110)
    at org.scribe.model.Request.send(Request.java:62)
    ... 5 more
Java Result: 1

编辑 1：更新了代码和输出。还是需要帮助！

4

4 回答 4

7

我认为您的问题可能只是这一行的结果：

request.addHeader("Content-Range", "bytes%20" + contentRange);

尝试并"bytes%20"简单地替换"bytes "

在您的输出中，您会看到相应的标题内容不正确：

Headers: {
    Content-Length=15125120,
    Content-Type=video/mp4,
    Content-Range=bytes%200-10485759/15125120     <-- INCORRECT
}

关于Content-Range...的话题

您是对的，示例最终内容块的范围应类似于14680064-15125119/15125120. 这是 HTTP 1.1 规范的一部分。

于 2012-04-16T00:00:57.170 回答
2

这里

 String contentRange = Integer.toString(byteNumber + 1);

您在第一次迭代时从 1 开始，而不是从 0 开始。

这里

 request.addHeader("Content-Length", contentLength);

您放置整个文件内容长度而不是当前块的长度。

于 2012-04-11T18:37:13.853 回答
0

vimeo API 页面说：“最后一步是调用 vimeo.videos.upload.complete 以将视频排队进行转码。此调用将返回 video_id，然后您可以在其他调用中使用它（设置标题、描述，隐私等）。如果不调用此方法，则视频不会被处理。

我在最后添加了这段代码并让它工作：

    request = new OAuthRequest(Verb.PUT, "http://vimeo.com/api/rest/v2");
    request.addQuerystringParameter("method", "vimeo.videos.upload.complete");
    request.addQuerystringParameter("filename", video.getName());
    request.addQuerystringParameter("ticket_id", ticket);
    service.signRequest(token, request);        

    response = request.send();
于 2013-11-28T00:57:47.670 回答
-1

检查这个：

String contentRange="bytes "+lastBytesSend+"-"+ ((totalSize - lastBytesSend)-1)+"/"+totalSize ;

request.addHeader("Content-Range",contentRange);
于 2019-12-05T07:52:11.527 回答