c# - 远程服务器返回意外响应 : (400) Bad Request, WCF

Question

我正在尝试将图像发送到我的 WCF，然后我收到了。

The remote server returned an unexpected response: (400) Bad Request.

其他一切都可以正常发送到 WCF，并且图像不是那么大 ~90kb。我在这方面发现了很多线索，但没有任何帮助。我已尝试增加大小限制，但这不起作用。

网络配置

  <system.serviceModel>
    <bindings>
      <wsHttpBinding>
        <binding name="WSHttpBinding_IService" closeTimeout="00:01:00"
        openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
        bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
        maxBufferPoolSize="2000000" maxReceivedMessageSize="2000000"
        messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
        allowCookies="false">
          <readerQuotas maxDepth="2000000" maxStringContentLength="2000000" maxArrayLength="2000000"
          maxBytesPerRead="2000000" maxNameTableCharCount="2000000" />
          <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" />
          <security mode="Message">
            <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" />
            <message clientCredentialType="Windows" negotiateServiceCredential="true"
            algorithmSuite="Default" establishSecurityContext="true" />
          </security>
        </binding>
      </wsHttpBinding>
    </bindings>
    <client>
      <endpoint address="http://localhost:8732/Design_Time_Addresses/WcfDataLager/Service1/"
        binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IService"
        contract="ServiceReference.IService" name="WSHttpBinding_IService">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
    </client>
  </system.serviceModel>

应用程序配置

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
  </configSections>
  <connectionStrings>
    <add name="WcfDataLager.Properties.Settings.WebbshopConnectionString"
      connectionString="Data Source=(local);Initial Catalog=Webbshop;Integrated Security=True"
      providerName="System.Data.SqlClient" />
  </connectionStrings>
  <system.web>
    <compilation debug="true" />
  </system.web>
  <system.serviceModel>
    <bindings />
    <client />
    <services>
      <service name="WcfDataLager.Service">
        <endpoint address="" binding="wsHttpBinding" contract="WcfDataLager.IService">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8732/Design_Time_Addresses/WcfDataLager/Service1/" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceMetadata httpGetEnabled="True"/>
          <serviceDebug includeExceptionDetailInFaults="True" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
</configuration>

页面代码。

protected void btnAdd_Click(object sender, EventArgs e)
{
    Produkt produkt = new Produkt();
    produkt.Namn = txtNamn.Text;
    produkt.Pris = Convert.ToDouble(txtPris.Text);
    produkt.Beskrivning = txtbeskrivning.Text;
    produkt.LagerAntal = Convert.ToInt32(txtAntal.Text);
    produkt.Typ = txtGenre.Text;
    //produkt.ImageAsByte = fupBild.FileBytes;
    produkt.Bild = new System.Drawing.Bitmap(fupBild.PostedFile.InputStream);
    using (ServiceReference.ServiceClient wcfClient = new ServiceReference.ServiceClient())
    {
        wcfClient.AddProdukt(produkt);
    }
}

WCF 代码。

public void AddProdukt(Produkt produkt)
{
   DataSetTableAdapters.ProduktTableAdapter itemsTA = new
WcfDataLager.DataSetTableAdapters.ProduktTableAdapter();
   byte[] bmpAsByte;
   using (System.IO.MemoryStream stream = new System.IO.MemoryStream())
   {
       produkt.Bild.Save(stream, System.Drawing.Imaging.ImageFormat.Bmp);
       stream.Position = 0;
       bmpAsByte = new byte[stream.Length];
       stream.Read(bmpAsByte, 0, (int)stream.Length);
       stream.Close();
   }
   produkt.ID = 7;
   itemsTA.InsertProdukt(produkt.Namn, produkt.Pris, produkt.Beskrivning, produkt.LagerAntal, bmpAsByte);
   itemsTA.InsertGenre(produkt.Typ, produkt.ID);
   DataSet dataset = new DataSet();
   itemsTA.Adapter.Update(dataset);
}

Answer 1

maxReceivedMessageSize 属性需要出现在服务边界的两边，服务和消费者。因此，您需要在客户端配置中添加一个绑定(bind)元素。

更新

您需要在您的服务 app.config 中包含来自 web.config 的绑定(bind):

<bindings>
  <wsHttpBinding>
    <binding name="WSHttpBinding_IService" closeTimeout="00:01:00"
    openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
    bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
    maxBufferPoolSize="2000000" maxReceivedMessageSize="2000000"
    messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
    allowCookies="false">
      <readerQuotas maxDepth="2000000" maxStringContentLength="2000000" maxArrayLength="2000000"
      maxBytesPerRead="2000000" maxNameTableCharCount="2000000" />
      <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" />
      <security mode="Message">
        <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" />
        <message clientCredentialType="Windows" negotiateServiceCredential="true"
        algorithmSuite="Default" establishSecurityContext="true" />
      </security>
    </binding>
  </wsHttpBinding>
</bindings>

然后您可以通过使用端点 bindingConfiguration 属性在您的 app.config 中的服务端点中引用此绑定(bind)元素，在这种情况下，您将其设置为与 wsHttpBinding 元素，即“WSHttpBinding_IService”。

例如

<endpoint address="" 
          binding="wsHttpBinding" 
          contract="WcfDataLager.IService"
          bindingConfiguration="WSHttpBinding_IService">