将文件发送到WCF时出错：请求失败，HTTP状态为400：错误的请求

Question

I am trying to upload file using wcf service. I am getting The request failed with HTTP status 400: Bad Request at:

ds = WcfSpend.RegisterSupplier("blah", new SpendWcfRef.FileData 
{ 
    FileName = myFile.FileName.ToString(), 
    BufferData = file, 
    FilePosition = 1
});

WCF:

public DataSet RegisterSupplier(string SupplierId, FileData file)
{
    DataSet ds = new DataSet();
    return ds;
}

[ServiceContract]
public interface ISPEND
{

    [OperationContract]
    DataSet executeProcedure(string procedurename, string[] paramsName, string[] paramsValue, int num);

    [OperationContract]
    DataSet RegisterSupplier(string SupplierId, FileData file);

    //[OperationContract]
    //bool UploadFileData(FileData fileData);
}

[DataContract]
public class FileData
{
    [DataMember]
    public string FileName { get; set; }

    [DataMember]
    public byte[] BufferData { get; set; }

    [DataMember]
    public int FilePosition { get; set; }
}

APPLICATION:

ds = WcfSpend.RegisterSupplier("blah", new SpendWcfRef.FileData
{ 
    FileName = myFile.FileName.ToString(), 
    BufferData = file, FilePosition = 1
});

Apllication config file:

<system.serviceModel>
    <bindings>
        <basicHttpBinding>
            <binding name="BasicHttpBinding_ISPEND" 
                closeTimeout="00:01:00"     
                openTimeout="00:01:00" 
                receiveTimeout="00:10:00" 
                sendTimeout="00:01:00" 
                allowCookies="false" 
                bypassProxyOnLocal="false"
                hostNameComparisonMode="StrongWildcard"
                maxBufferSize="2147483647" 
                maxBufferPoolSize="2147483647" 
                maxReceivedMessageSize="2147483647" 
                messageEncoding="Text" 
                textEncoding="utf-8" 
                transferMode="Buffered" 
                useDefaultWebProxy="true">
                <readerQuotas maxDepth="2147483647"
                    maxStringContentLength="2147483647"
                    maxArrayLength="2147483647"
                    maxBytesPerRead="2147483647" 
                    maxNameTableCharCount="2147483647" />
                <security mode="None">
                    <transport clientCredentialType="None" 
                        proxyCredentialType="None" 
                        realm="" />
                    <message clientCredentialType="UserName" 
                        algorithmSuite="Default" />
                </security>
            </binding>
        </basicHttpBinding>
    </bindings>
    <client/>
</system.serviceModel>

WCF WEB CONFIG:

<system.serviceModel>
    <bindings>
        <basicHttpBinding>
            <binding name="myBindingForBigArrays"
                openTimeout="00:10:00" 
                closeTimeout="00:10:00" 
                receiveTimeout="00:10:00" 
                sendTimeout="00:10:00" 
                maxReceivedMessageSize="2147483647"
                maxBufferPoolSize="2147483647" 
                maxBufferSize="2147483647">
                <readerQuotas maxDepth="64"
                    maxStringContentLength="2147483647"
                    maxArrayLength="2147483647"
                    maxBytesPerRead="4096"
                    maxNameTableCharCount="16384"/>
            </binding>
        </basicHttpBinding>
    </bindings>
    <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> 

Answer 1

There could be a few things that are resulting in the error you are seeing. The first thing I would recommend is that you assign the binding configurations you created to an explicitly defined endpoint. Something like this:

<!-- This goes in the <system.serviceModel> section -->
<services>
  <service name="MyService">
    <endpoint address="" 
              binding="wsHttpBinding"
              bindingConfiguration="myBindingForBigArrays"
              contract="<namespace>.ISpend" />
  </service>
</services>

The above is the configuration for the service. Make sure you fully qualify the contract name with the namespace, and the service name needs to be the same as the name in the markup of the .svc file.

You would do something similar for the client, except it would be the <client> tag, rather than <service> .

If you don't specify the binding configuration to use in the endpoint, then WCF will use the default (lower) values for the binding type you selected. An alternative is to make the binding configuration the default for that kind of binding, by omitting the name attribute.

If this doesn't solve the issue, you can also try adjusting the maxRequestLength value for the <httpRuntime> element in <system.web> . <system.web> is a child of <configuration> :

<system.web>
    <httpRuntime maxRequestLength="2147483647" />
</system.web>