Javascript 将文本文件上载到Azure blob存储返回内部服务器错误

我想创建一个应用程序，用户可以在其中将文本文件上载到Azure Blob存储。我用的是这个例子，但即使这样也不适用于我：

我对我的东西做了一些修改：

[DataContract]
public class WorkoutItem
{

    [JsonProperty(PropertyName = "id")]
    public string Id { get; set; }

    [JsonProperty(PropertyName = "containerName")]
    public string ContainerName { get; set; }

    [JsonProperty(PropertyName = "resourceName")]
    public string ResourceName { get; set; }

    [JsonProperty(PropertyName = "sasQueryString")]
    public string SasQueryString { get; set; }

    [JsonProperty(PropertyName = "filePath")]
    public string Filepath { get; set; }
}

我想上传一个txt文件，方法如下：

private async void InsertWorkoutItem(string localpath)
    {
        try
        {
            item = new WorkoutItem();
            string errorString = string.Empty;

            IsolatedStorageFileStream fileStream = IsolatedStorageFile.GetUserStoreForApplication().OpenFile(
                localpath + ".txt", FileMode.Open, FileAccess.Read);

            if (fileStream != null)
            {
                item.ContainerName = "workoutitemfiles";
                item.ResourceName = localpath + ".txt";
            }

            await workouttable.InsertAsync(item); //exception thrown here

            if (!string.IsNullOrEmpty(item.SasQueryString))
            {
                StorageCredentials cred = new StorageCredentials(item.SasQueryString);
                var fileUri = new Uri(item.Filepath);

                CloudBlobContainer container = new CloudBlobContainer(new Uri(
                    string.Format("https://{0}/{1}", fileUri.Host, item.ContainerName)), cred);

                CloudBlockBlob blobFromSASCredential = container.GetBlockBlobReference(item.ResourceName);
                await blobFromSASCredential.UploadFromStreamAsync(fileStream);
            }
        }

例外情况详情：

    {Microsoft.WindowsAzure.MobileServices.MobileServiceInvalidOperationException: Error: Internal Server Error
   at Microsoft.WindowsAzure.MobileServices.MobileServiceHttpClient.<ThrowInvalidResponse>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   at Microsoft.WindowsAzure.MobileServices.MobileServiceHttpClient.<SendRequestAsync>d__1d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.WindowsAzure.MobileServices.MobileServiceHttpClient.<RequestAsync>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.WindowsAzure.MobileServices.MobileServiceTable.<>c__DisplayClass10.<<InsertAsync>b__f>d__12.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.WindowsAzure.MobileServices.MobileServiceTable.<TransformHttpException>d__41.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.WindowsAzure.MobileServices.MobileServiceTable.<InsertAsync>d__17.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.WindowsAzure.MobileServices.MobileServiceTable`1.<TransformHttpException>d__38.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Microsoft.WindowsAzure.MobileServices.MobileServiceTable`1.<InsertAsync>d__b.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   at Microsoft.WindowsAzure.MobileServices.MobileServiceTable`1.<InsertAsync>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   at GPS_BLRM67.ViewModel.MainViewModel.<InsertWorkoutItem>d__c.MoveNext()}

以下是服务器端插入脚本：

    var azure = require('azure');
var qs = require('querystring');
var appSettings = require('mobileservice-config').appSettings;

function insert(item, user, request) {
    // Get storage account settings from app settings. 
    var accountName = appSettings.STORAGE_ACCOUNT_NAME;
    var accountKey = appSettings.STORAGE_ACCOUNT_ACCESS_KEY;
    var host = accountName + '.blob.core.windows.net';

    if ((typeof item.containerName !== "undefined") && (
    item.containerName !== null)) {
        // Set the BLOB store container name on the item, which must be lowercase.
        item.containerName = item.containerName.toLowerCase();

        // If it does not already exist, create the container 
        // with public read access for blobs.        
        var blobService = azure.createBlobService(accountName, accountKey, host);
        blobService.createContainerIfNotExists(item.containerName, {
            publicAccessLevel: 'blob'
        }, function(error) {
            if (!error) {

                // Provide write access to the container for the next 5 mins.        
                var sharedAccessPolicy = {
                    AccessPolicy: {
                        Permissions: azure.Constants.BlobConstants.SharedAccessPermissions.WRITE,
                        Expiry: new Date(new Date().getTime() + 5 * 60 * 1000)
                    }
                };

                // Generate the upload URL with SAS for the new image.
                var sasQueryUrl = 
                blobService.generateSharedAccessSignature(item.containerName, 
                item.resourceName, sharedAccessPolicy);

                // Set the query string.
                item.sasQueryString = qs.stringify(sasQueryUrl.queryString);

                // Set the full path on the new new item, 
                // which is used for data binding on the client. 
                item.filePath = sasQueryUrl.baseUrl + sasQueryUrl.path;

            } else {
                console.error(error);
            }
            request.execute();
            item.userId=user.userId;
        });
    } else {
        request.execute();
    }
}

---

我错过了什么？我在另一个线程中读到，可能没有将Windows Azure存储引用添加到项目中，但这不是我的问题。

查看错误消息，我看到“”。看起来您的accountName变量可能未定义。你能试着打印并检查输出吗？是的，就是这样。不过谢谢你的帮助，现在它已经正常工作了。@fzl你是如何解决这个问题的，我想我也遇到了同样的问题，这两条线对我不起作用。var appSettings=require（'mobileservice-config'）。appSettings；var accountName=appSettings.STORAGE\u ACCOUNT\u NAME@对我来说，问题在于配置不当的移动服务。我转到我的Azure管理门户，选择您为应用程序创建的适当移动服务，转到“配置”选项卡，并将您的凭据写入应用程序设置。一个项目包含一个名称及其值的名称。在左侧，您需要给出可以在脚本中引用的名称，在本例中是其存储\帐户\名称。在它旁边，您应该写下您希望此项获得的值。希望你能用这个。

Error in script '/table/WorkoutItem.insert.js'. Error: {"message":"The provided settings {\"blobendpoint\":\"http://undefined.blob.core.windows.net/\",\"tableendpoint\":\"http://undefined.blob.core.windows.net/\",\"queueendpoint\":\"http://undefined.blob.core.windows.net/\"} are not complete."}

    var azure = require('azure');
var qs = require('querystring');
var appSettings = require('mobileservice-config').appSettings;

function insert(item, user, request) {
    // Get storage account settings from app settings. 
    var accountName = appSettings.STORAGE_ACCOUNT_NAME;
    var accountKey = appSettings.STORAGE_ACCOUNT_ACCESS_KEY;
    var host = accountName + '.blob.core.windows.net';

    if ((typeof item.containerName !== "undefined") && (
    item.containerName !== null)) {
        // Set the BLOB store container name on the item, which must be lowercase.
        item.containerName = item.containerName.toLowerCase();

        // If it does not already exist, create the container 
        // with public read access for blobs.        
        var blobService = azure.createBlobService(accountName, accountKey, host);
        blobService.createContainerIfNotExists(item.containerName, {
            publicAccessLevel: 'blob'
        }, function(error) {
            if (!error) {

                // Provide write access to the container for the next 5 mins.        
                var sharedAccessPolicy = {
                    AccessPolicy: {
                        Permissions: azure.Constants.BlobConstants.SharedAccessPermissions.WRITE,
                        Expiry: new Date(new Date().getTime() + 5 * 60 * 1000)
                    }
                };

                // Generate the upload URL with SAS for the new image.
                var sasQueryUrl = 
                blobService.generateSharedAccessSignature(item.containerName, 
                item.resourceName, sharedAccessPolicy);

                // Set the query string.
                item.sasQueryString = qs.stringify(sasQueryUrl.queryString);

                // Set the full path on the new new item, 
                // which is used for data binding on the client. 
                item.filePath = sasQueryUrl.baseUrl + sasQueryUrl.path;

            } else {
                console.error(error);
            }
            request.execute();
            item.userId=user.userId;
        });
    } else {
        request.execute();
    }
}