使用Wcf Service读取然后保存文件

我正在创建第一个使用Stream的WCF服务 . 我想要的最终产品是从我的硬盘中选择一个文件并将其保存到数据库中 . 因此，我要完成的第一步是阅读选定的.jpg文件 .

我的 Contract 如下：

namespace Web
{
    interface name "IStreamingService" 
    [ServiceContract]
    public interface IStreamingService
    {
        [OperationContract]
        Stream GetStream(string data);
    }
}

我的IService是：

public class StreamingService : IStreamingService
    {
        public Stream GetStream(string data)
        {
            string filePath = data;       
            try
            {
                FileStream imageFile = File.OpenRead(filePath);
                return imageFile;
            }
            catch (IOException ex)
            {
                Console.WriteLine(
                    String.Format("An exception was thrown while trying to open file {0}", filePath));
                Console.WriteLine("Exception is: ");
                Console.WriteLine(ex.ToString());
                throw ex;
            }
        }
    }

我的Web.Config文件看起来像这样，添加了 httpRuntime maxRequestLength="2147483647" 以允许流式传输大文件 .

<!-- language: xaml -->
   <?xml version="1.0"?>
     <configuration>

      <system.web>
        <compilation debug="true" targetFramework="4.0" />
        <!-- ADDED ASP.NET doesn’t know about WCF and it has it’s own limits for the request size, now increased to match maxReceivedMessageSize. -->
        <httpRuntime maxRequestLength="2147483647"/>
      </system.web>
      <system.serviceModel>
        <behaviors>
         <serviceBehaviors>
            <behavior>
              <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
          <serviceMetadata httpGetEnabled="true"/>
          <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
              <serviceDebug includeExceptionDetailInFaults="false"/>
            </behavior>
          </serviceBehaviors>
        </behaviors>
        <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
      </system.serviceModel>
     <system.webServer>
        <modules runAllManagedModulesForAllRequests="true"/>
      </system.webServer>

    </configuration>

然后我添加了服务参考的控制台应用程序 . 我已经更改了app.config，因此transferedMode =“Streamed”和maxReceivedMessageSize =“2147483647”再次允许传输大文件 .

最后我的计划是：

namespace ConsoleApp
{
    class Program
    {
        static void Main(string[] args)
        {
            string data = @"C:/Users/Admin/Desktop/IMG_0038.JPG";

            StreamingServiceClient serviceHost = new StreamingServiceClient();

            serviceHost.GetStream(data);
        }
    }
}

当我运行应用程序时，我收到错误 The remote server returned an unexpected response: (400) Bad Request.

任何人都可以指出我正确的方向，所以我可以继续前进，所以一旦我读了文件，我就可以保存它 .