Question

一直坚持这个错误直到疯狂阶段......请帮忙

我创建了一个Azure Mobile Service .NET后端，现在正尝试从Xamarin Android客户端调用其Post函数

我初始化并调用Insert async函数（这些只是我代码中的代码片段）

private static IMobileServiceTable<Todo> _todoMobileServiceTable;

public static bool? InitializeAms()
{
    try
    {
        CurrentPlatform.Init();
        _mobileServiceClient = new MobileServiceClient(applicationUrl, applicationKey);

        _todoMobileServiceTable = _mobileServiceClient.GetTable<Todo>();

        return true;
    }
    catch (MalformedURLException malformedUrlException)
    {
        ReportHelper.Report(Tag, "There was an error creating the Mobile Service. Verify the URL", true, malformedUrlException);
    }
    catch (Exception exception)
    {
        ReportHelper.Report(Tag, "Error occurred during initialization of Azure Mobile Services", true, exception);
    }

    return null;
}

_todoMobileServiceTable.InsertAsync(Todo);

调用.InsertAsync（Todo）

时出现以下错误

请求无法完成。（未找到）

N.B：

Azure存储客户端目前还不适用于xamarin，除了使用1岁的脏叉并且是针对iOS而不是Android而做的我没有其他选择（尽管它适用于azure移动服务javascript）https://github.com/zgramana/IOSAzureBlobUploader
如果我使用浏览器“试用”按钮，但是当我从xamarin客户端应用程序调用它时，它不起作用。
如果我使用javascript移动服务，它可以从xamarin客户端应用程序中运行
本地azure移动服务和在线发布的服务都会出现此错误

这是WebApiConfig类

namespace Service.Ams
{
    public static class WebApiConfig
    {
        public static void Register()
        {
            // Use this class to set configuration options for your mobile service
            ConfigOptions options = new ConfigOptions();

            // Use this class to set WebAPI configuration options
            HttpConfiguration config = ServiceConfig.Initialize(new ConfigBuilder(options));

            // To display errors in the browser during development, uncomment the following
            // line. Comment it out again when you deploy your service for production use.
            config.IncludeErrorDetailPolicy = IncludeErrorDetailPolicy.Always;

            Database.SetInitializer(new ServiceAmsInitializer());
        }
    }

    public class ServiceAmsInitializer : ClearDatabaseSchemaIfModelChanges<ServiceAmsDbContext>
    {}
}

这是TableController类

namespace Service.Ams.Controllers
{
    public class TodoItemController : TableController<TodoItem>
    {
        protected override void Initialize(HttpControllerContext controllerContext)
        {
            base.Initialize(controllerContext);
            ServiceAmsDbContext serviceAmsDbContext = new ServiceAmsDbContext();
            DomainManager = new EntityDomainManager<TodoItem>(serviceAmsDbContext, Request, Services);
        }

        // GET tables/TodoItem
        [AuthorizeLevel(AuthorizationLevel.Admin)]
        public IQueryable<TodoItem> GetAllTodoItems()
        {
            return Query(); 
        }

        // GET tables/TodoItem/55D11C86-6EA6-4C44-AA33-337FC9A27525
        [AuthorizeLevel(AuthorizationLevel.Admin)]
        public SingleResult<TodoItem> GetTodoItem(string id)
        {
            return Lookup(id);
        }

        // PATCH tables/TodoItem/55D11C86-6EA6-4C44-AA33-337FC9A27525
        [AuthorizeLevel(AuthorizationLevel.Admin)]
        public Task<TodoItem> PatchTodoItem(string id, Delta<TodoItem> patch)
        {
             return UpdateAsync(id, patch);
        }

        // POST tables/TodoItem/55D11C86-6EA6-4C44-AA33-337FC9A27525
        [AuthorizeLevel(AuthorizationLevel.Anonymous)]
        public async Task<IHttpActionResult> PostTodoItem(TodoItem item)
        {
            string storageAccountName;
            string storageAccountKey;

            // Try to get the Azure storage account token from app settings.  
            if (
                !(Services.Settings.TryGetValue("STORAGE_ACCOUNT_NAME", out storageAccountName) |
                  Services.Settings.TryGetValue("STORAGE_ACCOUNT_ACCESS_KEY", out storageAccountKey)))
                Services.Log.Error("Could not retrieve storage account settings.");

            // Set the URI for the Blob Storage service.
            Uri blobEndpoint = new Uri(string.Format("http://127.0.0.1:10000/{0}/", storageAccountName));

            // Create the BLOB service client.
            CloudBlobClient blobClient = new CloudBlobClient(blobEndpoint, new StorageCredentials(storageAccountName, storageAccountKey));

            // Create a container, if it doesn't already exist.
            CloudBlobContainer container = blobClient.GetContainerReference(item.ContainerName);
            await container.CreateIfNotExistsAsync();

            // Create a shared access permission policy. 
            BlobContainerPermissions containerPermissions = new BlobContainerPermissions
            {
                PublicAccess = BlobContainerPublicAccessType.Blob
            };

            // Enable anonymous read access to BLOBs.
            container.SetPermissions(containerPermissions);

            // Define a policy that gives write access to the container for 5 minutes.                                   
            SharedAccessBlobPolicy sasPolicy = new SharedAccessBlobPolicy
            {
                SharedAccessStartTime = DateTime.UtcNow,
                SharedAccessExpiryTime = DateTime.UtcNow.AddMinutes(5),
                Permissions = SharedAccessBlobPermissions.Write
            };

            // Get the SAS as a string.
            item.SasQueryString = container.GetSharedAccessSignature(sasPolicy);

            // Set the URL used to store the image.
            item.ImageLqUri = string.Format("{0}{1}/{2}", blobEndpoint, item.ContainerName, item.ResourceNameLq);
            item.ImageHqUri = string.Format("{0}{1}/{2}", blobEndpoint, item.ContainerName, item.ResourceNameHq);

            // Complete the insert operation.
            TodoItem current = await InsertAsync(item);
            return CreatedAtRoute("Tables", new {id = current.Id}, current);
        }

        // DELETE tables/TodoItem/55D11C86-6EA6-4C44-AA33-337FC9A27525
        [AuthorizeLevel(AuthorizationLevel.Admin)]
        public Task DeleteTodoItem(string id)
        {
             return DeleteAsync(id);
        }

    }
}

这是EntityData类

namespace Service.Ams.DataObjects
{
    [Table("dbo.TodoItems")]
    public class TodoItem : EntityData
    {
        public string ContainerName { get; set; }
        public string ResourceNameLq { get; set; }
        public string ResourceNameHq { get; set; }
        public string SasQueryString { get; set; }
        public string ImageLqUri { get; set; }
        public string ImageHqUri { get; set; }
    }
}

Answer 1

有没有办法可以转储HTTP请求的样子？

我这里没有Android客户端，但我们可以在星期一看看。

的Henrik

Answer 2

TableController和客户端对应的类必须具有相同的名称，例如 TodoController 和 TodoClass 。我不知道是否存在修改此规则以及如何使用的属性，如果在服务器端装饰TableController类或在客户端装饰数据类。

Azure Mobile Services .NET后端中的（未找到）错误

2 个答案: