c# - 在Azure上部署WCF服务，尝试访问数据库时超时

Question

我有第一个项目“MyProject.Core”，我有 EDMX:

repo 类:

class MyProjectRepo : IMyProjects
{
    public int NumberOfUser()
    {
        return new context().User.Count();
    }

    public string HelloWorld()
    {
        return "Hello World!";
    }
}

界面:

public interface IMyProjects
{
    int NumberOfUser();
    string HelloWorld();
}

工厂:

public static class MyProjectFactory
{
    private static IMyProjects _returnedObject;

    public static IMyProjects GetObject()
    {
        lock (typeof(MyProjectFactory))
        {
            _returnedObject = new MyProjectRepo();
        }
        return _returnedObject;
    }
}

测试项目“MyProject.Core.Tests”(测试通过):

[Test]
public void NumberOfUser_Test()
{
    var number = MyProjectFactory.GetObject().NumberOfUser();
    Assert.AreEqual(1, number);
}

[Test]
public void HelloWorld_Test()
{
    var hello = MyProjectFactory.GetObject().HelloWorld();
    Assert.AreEqual("Hello World!", hello);
}

我创建了一个“云”项目和一个 WCFServiceWebRole。

在 WCFServiceWebRole 中，我有这个:

public class Service1 : IService1
{
    public int NumberOfUser()
    {
        return MyProjectFactory.GetObject().NumberOfUser();
    }

    public string Hello()
    {
        return MyProjectFactory.GetObject().HelloWorld(); 
    }
}

[ServiceContract]
public interface IService1
{
    [OperationContract]
    int NumberOfUser(string login, string password);

    [OperationContract]
    string Hello();
}

一个测试WCF的项目，方法“Hello”返回正确的值。 这是我遇到问题的另一种方法。在 app.config 中，我有这个 :

<bindings>
    <basicHttpBinding>
        <binding name="BasicHttpBinding_IService1" />
    </basicHttpBinding>
</bindings>

<client>
    <endpoint address="http://myproject.azurewebsites.net/Service1.svc"
        binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IService1"
        contract="myprojectServiceAzure.IService1" name="BasicHttpBinding_IService1" />
</client>

错误:

System.TimeoutException : The request channel timed out while waiting for a reply after 00:00:59.7138476. Increase the timeout value passed to the call to Request or increase the SendTimeout value on the Binding. The time allotted to this operation may have been a portion of a longer timeout. ----> System.TimeoutException : The HTTP request to 'http://MyProject.azurewebsites.net/Service1.svc' has exceeded the allotted timeout of 00:00:59.9270000. The time allotted to this operation may have been a portion of a longer timeout. ----> System.Net.WebException : The operation has timed out MyProject.Azure.Tests\Service References\MyProjectServiceAzure\Reference.cs(487, 0) : MyProject.Azure.Tests.PointageServiceAzure.Service1Client.MyMethod(String login, String password) MyProject.Azure.Tests\AzureTests.cs(18, 0) : MyProject.Azure.Tests.AzureTests.Test()

Answer 1

您检查过 Azure 防火墙规则吗？您需要“允许”WCF 服务访问 SQL Azure 数据库。根据内存，您需要选中一个复选框，该复选框允许托管应用程序访问数据库，因为默认情况下未选中此复选框。