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我遇到此問題：WCF發送INT []從客戶端到服務器
我有一個WCF服務，暴露出這種經營合同：
[OperationContract]
void Index(int[] song, string fileName);
在我的客戶，我有：
AudioDetectionServiceReference.AudioDetectionServiceClient client = new AudioDetectionServiceReference.AudioDetectionServiceClient();
client.Index(max.ToArray(), mp3Files[i]);
其中，max是一個包含2000個int值的數組，mp3Files [i]是一個200個字符的字符串。
Web.config中有這樣的：
<configuration>
<system.web>
<compilation debug="true" targetFramework="4.0" />
</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>
而且具有的app.config：
<configuration>
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IAudioDetectionService" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:15863/AudioDetectionService.svc"
binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IAudioDetectionService"
contract="AudioDetectionServiceReference.IAudioDetectionService"
name="BasicHttpBinding_IAudioDetectionService" />
</client>
</system.serviceModel>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>
現在到了最棘手的部分：
當你右擊服務參考，請配置服務引用，有一個選項稱爲集合類型。如果我設置的集合類型爲「Syste.Array」我得到的錯誤
The remote server returned an unexpected response: (400) Bad Request.
隨着堆棧跟蹤：
Server stack trace:
at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory factory, WebException responseException, ChannelBinding channelBinding)
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at SqlTest.AudioDetectionServiceReference.IAudioDetectionService.Index(Int32[] song, String fileName)
at SqlTest.AudioDetectionServiceReference.AudioDetectionServiceClient.Index(Int32[] song, String fileName) in blablabla\Service References\AudioDetectionServiceReference\Reference.cs:line 53
at SqlTest.Program.Main(String[] args) in blablabla\Program.cs:line 46
當我將其更改爲「System.Collection.Generic.List」該錯誤神奇地消失。
我的問題是：爲什麼？
第二個問題：
爲什麼工作的呢？
client.Index(max.Take(100).ToArray(), mp3Files[i]);
使用相同的上下文（app.config，web.config和與上面相同的代碼，選中System.Array）。
感謝， 安德烈Neagu
PS：我張貼這一點，因爲我花了2天，試圖從readerQuotas和其他的東西改變設置綁定，更改消息大小，變化值，當我不得不這樣做這個愚蠢的選擇是什麼。所以我非常生氣，至少我想從中學到一些東西。
嘗試查看在Fiddler中發送到服務器的這兩種情況（數組和列表）中的請求，以查看它們之間是否存在差異。 – carlosfigueira
最好的解決問題的方法是打開WCF服務跟蹤。你會看到拋出的真正異常，而不是「壞請求」。 http://msdn.microsoft.com/en-us/library/aa702726.aspx。它有點耗時，但值得。 – ErnieL
另外，嘗試將''設置爲'true'，這可能會給您更好的錯誤響應 –
MichelZ