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我正在使用 Backblaze 并设法将文件（图像和视频）上传到我的 iOS 应用程序（swift 5）中的存储桶，但我无法在我的 java android 应用程序中这样做。

我收到了正确的身份验证令牌、下载网址、上传网址和 API 网址。

但是当我尝试将其发布到该 url 时它不起作用并且我收到以下错误

W/OkHttpClient: A connection to https://googleads.g.doubleclick.net/ was leaked. Did you forget to close a response body?
D/yyyy enclosed: saveImgToStorage:     buffer(com.android.okhttp.internal.http.Http1xStream$FixedLengthSource@e5232ab).inputStream()
saveImgToStorage: 401
W/System.err: java.net.ProtocolException: cannot write request body after response has been read
    at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:264)
    at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getOutputStream(DelegatingHttpsURLConnection.java:218)
    at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getOutputStream(Unknown Source:0)
    at com.flax.de.Helper.StorageService.saveImgToStorage(StorageService.java:192)
    at com.flax.de.Helper.StorageService.getUploadUrl(StorageService.java:142)
    at com.flax.de.Helper.StorageService.getAuthData(StorageService.java:95)
W/System.err:     at com.flax.de.Categories.NewPostFragment$3.run(NewPostFragment.java:341)
    at java.lang.Thread.run(Thread.java:764)

尝试将数据发布到上传 url 的函数如下

   static private void saveImgToStorage(Context context, String id, String uploadUrl, String uploadAuthorizationToken
        , String downloadUrl, Uri imageUrl, String bucketName, Interfaces.OnSuccessHashMap onSuccess
        , Interfaces.OnError onError) throws IOException {

    String photoUrl = downloadUrl+"/file/"+bucketName+"/"+id;
    HashMap hashMap = new HashMap();
    hashMap.put(API.databaseStrings.URL, photoUrl);
    Bitmap bmp = MediaStore.Images.Media.getBitmap(context.getContentResolver(), imageUrl);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bmp.compress(Bitmap.CompressFormat.JPEG, 100, baos);
    byte[] fileData = baos.toByteArray();
    String contentType = "image/jpg";
    String sha1 = "do_not_verify";



    HttpURLConnection connection = null;
    try {
        URL url = new URL(uploadUrl);
        connection = (HttpURLConnection)url.openConnection();
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Authorization", uploadAuthorizationToken);
        connection.setRequestProperty("Content-Type", contentType);
        connection.setRequestProperty("X-Bz-File-Name", id);
        connection.setRequestProperty("X-Bz-Content-Sha1", sha1);
        connection.setDoOutput(true);

        Log.d("yyyy enclosed", "saveImgToStorage: " + connection.getErrorStream().toString());
        Log.d("yyyy enclosed", "saveImgToStorage: " + connection.getResponseCode());

        DataOutputStream writer = new DataOutputStream(connection.getOutputStream());
        writer.write(fileData);
        String jsonResponse = myInputStreamReader(connection.getInputStream());
        JSONObject obj = new JSONObject(jsonResponse);


        System.out.println(jsonResponse);
    } catch (Exception e) {
        e.printStackTrace();
        onError.onError();
    } finally {
        connection.disconnect();
    }
}

错误代码如您所见

401

我不知道为什么它不起作用。正如我所说，它在我的 iOS 设备上工作得非常好，它使用基本上相同的代码，只用 swift 编写（取自 back blaze 的指南）我个人认为这不是 back blaze 的问题，而是我的请求是错误的？还是我的位图格式？

或者也许我必须异步进行？在将其从主线程中移出之前，我使用线程进行了尝试，但它也不起作用。

W/System.err: java.io.FileNotFoundException: https://pod-000-1070-11.backblaze.com/b2api/v2/b2_upload_file/afec4cd53b2f323f715a0c18/c000_v0001070_t0002
    at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:251)
    at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getInputStream(DelegatingHttpsURLConnection.java:210)
    at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getInputStream(Unknown Source:0)

如果使用此代码，我会收到什么

      String photoUrl = downloadUrl+"/file/"+bucketName+"/"+id;
    HashMap hashMap = new HashMap();
    hashMap.put(API.databaseStrings.URL, photoUrl);
    Bitmap bmp = MediaStore.Images.Media.getBitmap(context.getContentResolver(), imageUrl);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    bmp.compress(Bitmap.CompressFormat.JPEG, 100, baos);
    byte[] fileData = baos.toByteArray();
    String contentType = "image/jpg";
    String sha1 = "do_not_verify";

    HttpURLConnection connection = null;
    String json = null;


    try {
        URL url = new URL(uploadUrl);
        connection = (HttpURLConnection)url.openConnection();
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Authorization", uploadAuthorizationToken);
        connection.setRequestProperty("Content-Type", contentType);
        connection.setRequestProperty("X-Bz-File-Name", id);
        connection.setRequestProperty("X-Bz-Content-Sha1", sha1);
        connection.setDoOutput(true);
        DataOutputStream writer = new DataOutputStream(connection.getOutputStream());
        writer.write(fileData);
        String jsonResponse = myInputStreamReader(connection.getInputStream());
        System.out.println(jsonResponse);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        connection.disconnect();
    }
4

1 回答 1

1

该函数的第一个版本中的问题是这两行：

Log.d("yyyy enclosed", "saveImgToStorage: " + connection.getErrorStream().toString());
Log.d("yyyy enclosed", "saveImgToStorage: " + connection.getResponseCode());

两者getErrorStream()和getResponseCode()都会导致发送请求并读取响应，因为您已从服务器请求错误响应和响应代码。connection.getOutputStream()抛出错误，因为发送请求正文为时已晚。

您应该删除这些行，或将它们移到该行之后：

writer.write(fileData);

HttpURLConnection在您尝试读取响应时隐式发送请求的方式被“设计破坏”。

于 2022-02-26T18:47:13.050 回答