wcf 文件上传的例子网上很多，我也是借鉴别人的示例。wcf 文件下载的示例网上就很少了，不知道是不是因为两者的处理方式比较类似，别人就没有再上传了。在此本人做下记录备忘。
UploadFile.svc.cs
public class UploadFile : IUploadFile
{
/// <summary>
/// 服务器地图文件保存路径
/// </summary>
private string savePath = @"D:\矿车定位上传地图备份"; /// <summary>
/// 上传文件
/// </summary>
public void UploadFileMethod(FileUploadMessage myFileMessage)
{
if(!Directory.Exists(savePath))//地图存放的默认文件夹是否存在
{
Directory.CreateDirectory(savePath);//不存在则创建
} string fileName = myFileMessage.FileName;//文件名
string fileFullPath = Path.Combine(savePath, fileName);//合并路径生成文件存放路径
Stream sourceStream = myFileMessage.FileData; if (sourceStream == null) { return; }
if (!sourceStream.CanRead) { return; } //创建文件流，读取流中的数据生成文件
using (FileStream fs = new FileStream(fileFullPath, FileMode.Create, FileAccess.Write, FileShare.None))
{
try
{
const int bufferLength = ;
byte[] myBuffer = new byte[bufferLength];//数据缓冲区
int count;
while ((count = sourceStream.Read(myBuffer, , bufferLength)) > )
{
fs.Write(myBuffer, , count);
}
fs.Close();
sourceStream.Close();
}
catch { return; }
}
} /// <summary>
/// 获取文件列表
/// </summary>
public string[] GetFilesList()
{
if(!Directory.Exists(savePath))//判断文件夹路径是否存在
{
return null;
} DirectoryInfo myDirInfo = new DirectoryInfo(savePath);
FileInfo[] myFileInfoArray = myDirInfo.GetFiles("*.zip");
string[] myFileList = new string[myFileInfoArray.Length];
//文件排序
for (int i = ; i < myFileInfoArray.Length - ;i++ )
{
for (int j = i + ; j < myFileInfoArray.Length; j++)
{
if(myFileInfoArray[i].LastWriteTime > myFileInfoArray[j].LastWriteTime)
{
FileInfo myTempFileInfo = myFileInfoArray[i];
myFileInfoArray[i] = myFileInfoArray[j];
myFileInfoArray[j] = myTempFileInfo;
}
}
} for (int i = ; i < myFileInfoArray.Length; i++)
{
myFileList[i] = myFileInfoArray[i].Name;
} return myFileList;
} /// <summary>
/// 下载地图
/// </summary>
public Stream DownLoadFile(string fileName)
{
string fileFullPath = Path.Combine(savePath, fileName);//服务器文件路径
if(!File.Exists(fileFullPath))//判断文件是否存在
{
return null;
} try
{
Stream myStream = File.OpenRead(fileFullPath);
return myStream;
}
catch { return null; }
}
}
IUploadFile.cs [ServiceContract]
public interface IUploadFile
{
/// <summary>
/// 上传文件
/// </summary>
[OperationContract(Action = "UploadFile", IsOneWay = true)]
void UploadFileMethod(FileUploadMessage myFileMessage); /// <summary>
/// 获取文件列表
/// </summary>
[OperationContract]
string[] GetFilesList(); /// <summary>
/// 下载文件
/// </summary>
[OperationContract]
Stream DownLoadFile(string fileName);
} [MessageContract]
public class FileUploadMessage
{
[MessageHeader(MustUnderstand = true)]
public string FileName; [MessageBodyMember(Order = )]
public Stream FileData;
}
服务器端 web.config 配置文件 <service behaviorConfiguration="TramcarWcfService.UploadFileBehavior"
name="TramcarWcfService.UploadFile">
<endpoint address="" binding="basicHttpBinding" bindingConfiguration="UploadFileBinding" contract="TramcarWcfService.IUploadFile">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
</service> <basicHttpBinding>
<binding name="UploadFileBinding" maxReceivedMessageSize="" maxBufferSize=""
sendTimeout="00:10:00" transferMode="Streamed" messageEncoding="Mtom">
<security mode="None"/>
</binding>
</basicHttpBinding>
由于我的wcf是发布的iis上的需要添加下面的节点，用来设置上传文件的限制大小，虽然我上传的文件比较小，我还是想知道上传大文件是怎样配置的。 <system.web><httpRuntime maxRequestLength="2097151" />
客户端上传文件方法 /// <summary>
/// 上传文件
/// </summary>
public void UploadFileMethod(string fileName,string fileFullPath)
{
UploadFile_WcfService.FileUploadMessage myFileMessage = new DataProcess.UploadFile_WcfService.FileUploadMessage();
myFileMessage.FileName = fileName;//文件名
using (FileStream fs = File.OpenRead(fileFullPath))
{
myFileMessage.FileData = fs;
UploadFile_WcfService.IUploadFile myService = myClient.ChannelFactory.CreateChannel();
try
{
myService.UploadFileMethod(myFileMessage);
}
catch { }
//关闭流
fs.Close();
}
}
客户端下载文件方法 isExit = false;//该变量是窗体是否关闭的标志，如果窗体关闭置为true，跳出写文件循环
//下载地图文件保存路径
string saveFilePath = saveFilePathObj.ToString();
//从服务器中获取地图文件流
Stream sourceStream = myUploadFileClass.DownloadFile(fileNameChecked);
if (sourceStream != null)
{
if (sourceStream.CanRead)
{
using (FileStream fs = new FileStream(saveFilePath, FileMode.Create, FileAccess.Write, FileShare.None))
{
const int bufferLength = ;
byte[] myBuffer = new byte[bufferLength];
int count;
while ((count = sourceStream.Read(myBuffer, , bufferLength)) > )
{
if (isExit == false)
{
fs.Write(myBuffer, , count);
}
else//窗体已经关闭跳出循环
{
break;
}
}
fs.Close();
sourceStream.Close();
}
}
}
上面的配置上传一些比较大的文件应该是没有问题了，如果需要下载大文件还需要在客户端的app.config 中设置如下配置，此处的重点是设置transferMode="Streamed"默认是Buffered
，如果是Buffered是无法设置较大的maxReceivedMessageSize="9223372036854775807"
<basicHttpBinding>
<binding name="BasicHttpBinding_IUploadFile" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="" maxBufferPoolSize="" maxReceivedMessageSize=""
messageEncoding="Mtom" textEncoding="utf-8" transferMode="Streamed"
useDefaultWebProxy="true">
<readerQuotas maxDepth="" maxStringContentLength="" maxArrayLength=""
maxBytesPerRead="" maxNameTableCharCount="" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>