c# – WCF：无法访问已关闭的流

内容导读

互联网集市收集整理的这篇技术教程文章主要介绍了c# – WCF：无法访问已关闭的流，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含2982字，纯文字阅读大概需要5分钟。

内容图文

我正在尝试在WCF中接收Stream对象,但是当我收到它时,我得到一个封闭的Stream.
以下是我的代码

[OperationContract]
string ProcessPackageUsingStream(FileStream stream, string fileName, string docType, string customerKey, int documentId);

在实现中我正在使用此流对象.

string ProcessPackageUsingStream(FileStream stream, string fileName, string docType, string customerKey, int documentId);
{
     //Stream is closed here
}

这是我的配置文件

<system.serviceModel>
     <serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>

     <bindings>          
             <basicHttpBinding>
             <binding name="TransferService"   maxReceivedMessageSize="2147483647"  maxBufferSize="2147483647" transferMode="Streamed" >
                 <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/>
             <security mode="None"> 
             </security> 
           </binding>          
         </basicHttpBinding>
     </bindings>
     <services>

         <service behaviorConfiguration="TransferServiceBehavior" name="TransferService">
              <endpoint  address=""
             binding="basicHttpBinding" bindingConfiguration="TransferService"
                contract ="ITransferService">
                         </endpoint>
          </service>
     </services>
     <behaviors>
         <serviceBehaviors>

             <behavior name="TransferServiceBehavior">
                 <serviceMetadata httpGetEnabled="true" />
               <dataContractSerializer maxItemsInObjectGraph="2147483647" />
                 <serviceDebug includeExceptionDetailInFaults="true" />
                 <serviceThrottling
                      maxConcurrentCalls="500"
                      maxConcurrentSessions="500"
                      maxConcurrentInstances="500"
                    />
             </behavior>
         </serviceBehaviors>
     </behaviors>
 </system.serviceModel>

在客户端,我添加了对此服务的引用并使用了以下代码

SPCServiceClient service = new SPCServiceClient();
    service.ProcessPackageUsingStream(File.OpenRead(@"D:\Dev\TestData\002160500041.pdf"), "002160500041.pdf", "Test", "VLR@2016", 1211);

解决方法:

我解决了这个问题.以下解决方案为我工作.
而不是直接作为参数传递流,我创建了两个类,一个用于传递参数,另一个用于获取响应,如：

[MessageContract]
    public class RemoteFileInfo : IDisposable
    {
        [MessageHeader(MustUnderstand = true)]
        public string FileName;

        [MessageHeader(MustUnderstand = true)]
        public string DocType;

        [MessageHeader(MustUnderstand = true)]
        public string CustomerKey;

        [MessageHeader(MustUnderstand = true)]
        public string DocumentId;

        [MessageBodyMember(Order = 1)]
        public System.IO.Stream FileByteStream;

        public void Dispose()
        {
            if (FileByteStream != null)
            {
                FileByteStream.Close();
                FileByteStream = null;
            }
        }
    }

[MessageContract]
public class RemoteResponse
{
    [MessageBodyMember(Order = 1)]
    public string Token;
}

然后我在WCF服务中更新了我的方法：

[OperationContract]
RemoteResponse ProcessPackageUsingStream(RemoteFileInfo remote);

并更新了我的app.config

<bindings>
  <basicHttpBinding>
    <binding name="BasicHttpBinding_IPreProcessor" transferMode="Streamed" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" >
      <readerQuotas maxDepth = "2147483647"
            maxStringContentLength = "2147483647"
            maxArrayLength = "2147483647"
            maxBytesPerRead = "2147483647"
            maxNameTableCharCount = "2147483647"/>
    </binding>
  </basicHttpBinding>
</bindings>

内容总结

以上是互联网集市为您收集整理的c# – WCF：无法访问已关闭的流全部内容，希望文章能够帮你解决c# – WCF：无法访问已关闭的流所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错，欢迎将互联网集市网站推荐给程序员好友。

内容备注

版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 gblab@vip.qq.com 举报，一经查实，本站将立刻删除。

内容手机端