[POST某些数据时,WCF错误400错误请求

问题描述 投票:3回答:2

我在本地计算机上有一个WCF服务,它就像客户端应用程序和远程数据库之间的“桥梁”。

WCF服务与Entity Framework类一起使用,并且在获取数据时可以正常工作,但是在发布任何内容时却无法正常工作,而我收到下一条错误消息:“(400)Bad Request”。

这是我的客户代码:

//Connect to WCF Service
CHS_Local.ServiceFrontalClient proxy = new CHS_Local.ServiceFrontalClient();

//Get a "Client" class wich ClientID == 1
CHS_Local.Client client = proxy.GetClient(1);

//Change some stuff
client.Name = "change someting";

//Send the modified class to service to update the database
proxy.UpdateClient(client);

wcf配置文件中的此<system.serviceModel>标签:

<system.serviceModel>
   <services>
      <service name="CentralizedHostingService.ServiceFrontal">
         <endpoint 
             address="" 
             binding="wsHttpBinding" 
             contract="CentralizedHostingService.IServiceFrontal">
            <identity>
               <dns value="localhost" />
            </identity>
         </endpoint>
         <endpoint 
             address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
         <host>
            <baseAddresses>
               <add baseAddress="http://localhost:8732/Design_Time_Addresses/CentralizedHostingService/Service1/" />
            </baseAddresses>
         </host>
     </service>
  </services>
  <behaviors>
    <serviceBehaviors>
       <behavior>
          <serviceMetadata httpGetEnabled="True" />
         <serviceDebug includeExceptionDetailInFaults="False" />
       </behavior>
    </serviceBehaviors>
  </behaviors>
</system.serviceModel>

以及我在客户端应用程序中的app.config

<system.serviceModel>
    <bindings>
        <wsHttpBinding>
            <binding name="WSHttpBinding_IServiceFrontal" closeTimeout="00:01:00"
                openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
                bypassProxyOnLocal="false" transactionFlow="false" 
                hostNameComparisonMode="StrongWildcard"
                maxBufferPoolSize="524288" maxReceivedMessageSize="5000000"
                messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
                allowCookies="false">
                <readerQuotas 
                   maxDepth="32" maxStringContentLength="8192" 
                   maxArrayLength="16384" maxBytesPerRead="4096" 
                   maxNameTableCharCount="16384" />
                <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" />
                </security>
            </binding>
        </wsHttpBinding>
    </bindings>
    <client>
        <endpoint 
            address="http://localhost:8732/Design_Time_Addresses/CentralizedHostingService/Service1/"
            binding="wsHttpBinding" 
            bindingConfiguration="WSHttpBinding_IServiceFrontal"
            contract="CHS_Local.IServiceFrontal" name="WSHttpBinding_IServiceFrontal">
            <identity>
                <dns value="localhost" />
            </identity>
        </endpoint>
    </client>
</system.serviceModel>

服务接口:

    [OperationContract]
    Client GetClient(int clientID);

    [OperationContract]
    void UpdateClient(Client editedClient);

虽然我首先认为问题出在请愿书的重量上,但我发现使用Fiddler,为请愿书发送的字节仅为115.903字节(〜0.11MB)。任何想法?

如您所见,这是一个简单的示例,但不起作用:(

感谢您的帮助! :)

.net wcf
2个回答
1
投票

从客户端发布数据时,必须在服务上设置maxReceivedMessageSizereaderQuotas(如果需要)。您的客户端配置已修改maxReceivedMessageSize,可用于从服务获取数据,但是当您向服务发送大量数据时,也必须修改其配置。

类似:

<system.serviceModel>
  <bindings>
    <wsHttpBinding>
      <binding name="myBinding" maxReceivedMessageSize="500000" />
    </wsHttpBinding>
  </bindings>
  <services>
    <service name="CentralizedHostingService.ServiceFrontal">
      <endpoint bindingConfiguration="myBinding" ... />
      ...
    </service>
  </services>
  ...
</system.serviceModel>

0
投票

我在暂存环境中也将遇到此问题,当我将通过网络发送更多字节时。远程服务器返回了意外的响应:(400)错误的请求。 ---> System.Net.WebException:远程服务器返回错误:(400)错误的请求。

下面的更改是我在WCF web.config文件中完成的(在下面的配置中包括lessthen和greatthen符号,因为由于标签的不可见而无法添加)

发件人:

binding name =“ ServiceBinding” maxReceivedMessageSize =“ 262144

收件人

binding name =“ ServiceBinding” maxReceivedMessageSize =“ 2147483647

以下是以上绑定的终点地址标签

端点地址=“” binding =“ basicHttpBinding” bindingConfiguration =“ ServiceBinding

经过上述更改之后,它就像魅力一样工作。

谢谢,M.Amalraj

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