silverlight向wcf传递大于8192字节(8k)的字符串

默认情况下，silverlight在调用wcf时，如果传递的参数长度大于8192字节，即8k，会提示Not Found错误。

解决方法如下：

1、wcf服务端修改web.config 如下:

<?xml version="1.0"?>



<!--

  For more information on how to configure your ASP.NET application, please visit

  http://go.microsoft.com/fwlink/?LinkId=169433

  -->



<configuration>

    <system.web>

        <compilation debug="true" targetFramework="4.0" />

    </system.web>

  <system.serviceModel>

    <behaviors>

      <serviceBehaviors>

        <!--注:此处的name值要跟下面的behaviorConfiguration值对应-->

        <behavior name="A">

          <serviceMetadata httpGetEnabled="true"/>

          <serviceDebug includeExceptionDetailInFaults="false"/>

          <dataContractSerializer maxItemsInObjectGraph="2147483647"/>

        </behavior>

      </serviceBehaviors>

    </behaviors>

    <services>

      <!--注1:此处的behaviorConfiguration值要跟上面的name值对应-->

      <!--注2:此处的name值不能随便修改，命名格式为：完全命名空间+类名 -->

      <service behaviorConfiguration="A" name="WCF_SL_8192.Web.WCF.HelloWorld">

        <!--注1:此处的contract值不能随便修改，命名格式为：完全命名空间+类名 -->

        <!--注2:此处的bindingConfiguration值要与下面 binding name中的name值对应-->

        <endpoint address="" bindingConfiguration="BBB" binding="basicHttpBinding" contract="WCF_SL_8192.Web.WCF.HelloWorld"/>      

      </service>

    </services>

    <bindings>

      <basicHttpBinding>

        <binding name="BBB" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647">

          <!--name=随意命名，但要与上面的bindingConfiguration="BBB"对应 -->

          <readerQuotas maxStringContentLength="2147483647" maxArrayLength="2147483647"/>

          <security mode="None"></security>

        </binding>

      </basicHttpBinding>

    </bindings>

  </system.serviceModel>

</configuration>

附：wcf的代码

using System.ServiceModel;



namespace WCF_SL_8192.Web.WCF

{

    [ServiceContract]

    public class HelloWorld

    {

        [OperationContract]

        public int Test(string msg)

        {

            return msg.Length;

        }

    }

}

2、SL端修改ClientConfig如下：

<configuration>

  <system.serviceModel>

    <bindings>

      <basicHttpBinding>

        <binding name="BasicHttpBinding_HelloWorld" maxBufferSize="2147483647"

             maxReceivedMessageSize="2147483647">

          <security mode="None" />

        </binding>

      </basicHttpBinding>

      <!--下面这个节点是关键-->

      <customBinding>

        <binding name="BasicHttpBinding_HelloWorld">

          <textMessageEncoding messageVersion="Default" writeEncoding="utf-8" />

          <httpTransport maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" />

        </binding>

      </customBinding>

    </bindings>

    <client>

      <endpoint address="http://localhost:1588/WCF/HelloWorld.svc"

          binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_HelloWorld"

          contract="WCF.HelloWorld" name="BasicHttpBinding_HelloWorld" />

    </client>

  </system.serviceModel>

</configuration>

附:SL的调用代码

using System;

using System.Windows;

using System.Windows.Controls;

using WCF_SL_8192.WCF;



namespace WCF_SL_8192

{

    public partial class MainPage : UserControl

    {

        public MainPage()

        {

            InitializeComponent();



            this.Loaded += new RoutedEventHandler(MainPage_Loaded);





        }



        void MainPage_Loaded(object sender, RoutedEventArgs e)

        {

            HelloWorldClient client = new HelloWorldClient();           

            client.TestCompleted += new EventHandler<TestCompletedEventArgs>(client_TestCompleted);

            System.Text.StringBuilder sb = new System.Text.StringBuilder();

            for (int i = 0; i < 100000; i++)

            {

                sb.Append("A");

            }

            client.TestAsync(sb.ToString());

        }



        void client_TestCompleted(object sender, TestCompletedEventArgs e)

        {

            MessageBox.Show(e.Result.ToString());

        }

    }

}