所以我自己托管WCF服务。当我通过客户端调用我的GetProject()方法时,我得到一个Unhandled CommuncationException,其InnerException为
"底层连接已关闭:发生意外错误 收到。"
那个InnerException:
"无法从传输连接读取数据:远程主机强行关闭现有连接。"
现在我知道这只是一个通用的信息,并没有告诉我多少。所以我配置了一个服务跟踪,这就是我得到的:
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.Reply(MessageRpc& amp; rpc)System.Runtime.Serialization.SerializationException:Type' System.FormatException'使用数据合同名称' FormatException:http://schemas.datacontract.org/2004/07/System'不是预期的。考虑使用DataContractResolver或将任何静态未知的类型添加到已知类型列表中 - 例如,使用KnownTypeAttribute属性或将它们添加到传递给DataContractSerializer的已知类型列表中。
所以我接受了这条消息并修改了我的代码,我相信我现在正确地做到了这一点。我已经遵循了几个教程,但我仍然在服务跟踪中得到这个例外。
在我ServiceContract
我有以下内容:
[OperationContract]
Project GetProject(int id);
编辑已移除KnownTypeAttribute
使用。在此处注释以反映更改。
这是我对Project类及其使用的类的实现:
[DataContract]
//[KnownType(typeof(Contact))]
//[KnownType(typeof(ProjectDetails))]
//[KnownType(typeof(CommercialEntity))]
public class Project
{
[DataMember]
public ProjectDetails details = new ProjectDetails();
[DataMember]
public List<Contact> contacts = new List<Contact>();
[DataMember]
public List<CommercialEntity> POs = new List<CommercialEntity>();
[DataMember]
public List<CommercialEntity> invoices = new List<CommercialEntity>();
[DataMember]
public List<CommercialEntity> quotes = new List<CommercialEntity>();
[DataMember]
public List<CommercialEntity> CRs = new List<CommercialEntity>();
}
[DataContract]
public class ProjectDetails
{
[DataMember]
public int projectId { get; set; }
[DataMember]
public string name { get; set; }
[DataMember]
public int calYearId { get; set; }
[DataMember]
public string projectState { get; set; }
[DataMember]
public string reportTitle { get; set; }
[DataMember]
public int plantId { get; set; }
[DataMember]
public string holdNumber { get; set; }
[DataMember]
public string holdDescription { get; set; }
[DataMember]
public string remarks { get; set; }
[DataMember]
public string adminComments {get; set; }
[DataMember]
public int companyId { get; set; }
[DataMember]
public int customerId { get; set; }
[DataMember]
public string folderNumber { get; set; }
[DataMember]
public int invoicedInFull { get; set; }
[DataMember]
public int approved { get; set; }
}
}
[DataContract]
public class CommercialEntity
{
[DataMember]
public string number { get; set; }
[DataMember]
public DateTime date { get; set; }
[DataMember]
public string comments { get; set; }
public CommercialEntity(string setNumber, DateTime setDate, string setComments)
{
number = setNumber;
date = setDate;
comments = setComments;
}
}
[DataContract]
public class Contact
{
[DataMember]
public string firstName { get; set; }
[DataMember]
public string lastName { get; set; }
[DataMember]
public string emailAddress { get; set; }
[DataMember]
public string phoneNumber { get; set; }
[DataMember]
public int alert { get; set; }
[DataMember]
public int projectLead { get; set; }
[DataMember]
public int mainContact { get; set; }
public Contact(string first, string last, string email, string phone, int alrt, int projLead, int mainCntct)
{
firstName = first;
lastName = last;
emailAddress = email;
phoneNumber = phone;
alert = alrt;
projectLead = projLead;
mainContact = mainCntct;
}
public Contact() { }
}
我理解的漏洞在哪里?
以下是我在运行客户端时看到的内容:
有关调用实时的详细信息,请参阅此消息的结尾 (JIT)调试而不是此对话框。
** * ** 异常文字 ** * ****
System.ServiceModel.CommunicationException:发生错误 接收HTTP响应 myInternalIP:MyPort上/ ProjectService / ProjectService。这可能是 由于服务端点绑定不使用HTTP协议。这个 也可能是由于HTTP请求上下文被中止 服务器(可能是由于服务关闭)。查看服务器日志 更多细节。 ---&GT; System.Net.WebException:底层 连接已关闭:接收时发生意外错误。 ---&GT; System.IO.IOException:无法从传输中读取数据 连接:远程强制关闭现有连接 主办。 ---&GT; System.Net.Sockets.SocketException:现有连接 被远程主机强行关闭
在System.Net.Sockets.Socket.Receive(Byte []缓冲区,Int32偏移量,Int32 size,SocketFlags socketFlags)
在System.Net.Sockets.NetworkStream.Read(Byte []缓冲区,Int32偏移量, Int32尺寸)
---内部异常堆栈跟踪结束---
在System.Net.Sockets.NetworkStream.Read(Byte []缓冲区,Int32偏移量, Int32尺寸)
在System.Net.PooledStream.Read(Byte []缓冲区,Int32偏移量,Int32大小)
在System.Net.Connection.SyncRead(HttpWebRequest请求,布尔值 userRetrievedStream,Boolean probeRead)
---内部异常堆栈跟踪结束---
在System.Net.HttpWebRequest.GetResponse()
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan) 超时)
---内部异常堆栈跟踪结束---
服务器堆栈跟踪:
at System.ServiceModel.Channels.HttpChannelUtilities.ProcessGetResponseWebException(WebException) webException,HttpWebRequest请求,HttpAbortReason abortReason)at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan) 超时)
在System.ServiceModel.Channels.RequestChannel.Request(消息消息, TimeSpan超时)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message 消息,TimeSpan超时)
在System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway,ProxyOperationRuntime操作,Object [] ins, 对象[]出局,TimeSpan超时)
在System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage) methodCall,ProxyOperationRuntime operation)
在System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage 消息)
在[0]处重新抛出异常:
在System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage) reqMsg,IMessage retMsg)
在System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData&amp; msgData,Int32类型)
在IProjectService.GetQuerytoList(Int32 id)
在ProjectServiceClient.GetQuerytoList(Int32 id)中 C:\ Users \ drwill \ documents \ visual studio 2010 \ Projects \ ProjectBaseWCF \ ProjectBase \ generatedProxy.cs:第1065行 在ProjectWCFClient.MainForm.openToolStripMenuItem_Click(对象 发件人,EventArgs e)在C:\ Users \ drwill \ documents \ visual studio中 2010 \ Projects \ ProjectBaseWCF \ ProjectBase \ PBMain.cs:第961行
在ProjectWCFClient.MainForm.ProjectListBox_DoubleClick(对象发送者, EventArgs e)在C:\ Users \ drwill \ documents \ visual studio中 2010 \ Projects \ ProjectBaseWCF \ ProjectBase \ PBMain.cs:第55行
在System.Windows.Forms.Control.OnDoubleClick(EventArgs e)
在System.Windows.Forms.ListBox.WndProc(Message&amp; m)
在System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message&amp; m)
在System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message&amp; m)
在System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd,Int32) msg,IntPtr wparam,IntPtr lparam)
这是我的客户端配置:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IProjectService" maxReceivedMessageSize="500000000" />
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://192.168.0.99:9000/ProjectService/ProjectService"
binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IProjectService"
contract="IProjectService" name="BasicHttpBinding_IProjectService" />
</client>
</system.serviceModel>
</configuration>
这是我的服务配置:
<?xml version="1.0"?>
<configuration>
<system.web>
<compilation debug="true"/>
</system.web>
<!-- When deploying the service library project, the content of the config file must be added to the host's
app.config file. System.Configuration does not support config files for libraries. -->
<system.serviceModel>
<services>
<service behaviorConfiguration="ProjectBaseWCFServiceLib.Service1Behavior" name="ProjectBaseWCFServiceLib.ProjectService">
<endpoint address="" binding="basicHttpBinding" contract="ProjectBaseWCFServiceLib.IProjectService">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
<host>
<baseAddresses>
<add baseAddress="http://localhost:8732/Design_Time_Addresses/ProjectBaseWCFServiceLib/Service1/"/>
</baseAddresses>
</host>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="ProjectBaseWCFServiceLib.Service1Behavior">
<!-- 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 -->
<dataContractSerializer maxItemsInObjectGraph="2147483646"/>
<serviceDebug includeExceptionDetailInFaults="True"/>
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/></startup></configuration>
此外,我以编程方式配置我的控制台应用程序主机:
BasicHttpBinding binding = new BasicHttpBinding();
binding.OpenTimeout = new TimeSpan(0, 10, 0);
binding.CloseTimeout = new TimeSpan(0, 10, 0);
binding.SendTimeout = new TimeSpan(0, 10, 0);
binding.ReceiveTimeout = new TimeSpan(0, 10, 0);
binding.MaxReceivedMessageSize = 500000000;
binding.MaxBufferSize = 500000000;
binding.MaxBufferPoolSize = 500000000;
selfHost.AddServiceEndpoint(typeof(IProjectService), binding, "ProjectService");
答案 0 :(得分:3)
好。所以这有点晚了,但这就是它:
正在抛出的System.FormatException
是由于我在调用它时int.Parse("0")
方法中出现了GetProject(int id)
。
所以我通过调用更健壮的"0"
来改变方法来处理Convert.ToInt32("0")
案例。
我认为从这里学到的教训是,您应首先确保您正在执行的方法有效。然后,只有在那时你才开始询问DataContractSerializer
是否不足以序列化你的类型。
答案 1 :(得分:0)
我认为你不需要KnownType - 可能有可能用DateTime解析错误。检查客户端和服务器计算机上的文化。
编辑:从提供的进一步信息来看,您的代理配置错误 - 与服务器上的绑定配置相比。使用“添加服务引用”或“SvcUtil.exe”重新创建代理
答案 2 :(得分:0)
尝试为CommercialEntity