WCF利用Stream上传大文件
转自别人的文章，学习这个例子，基本上wcf也算入门了，接口用法、系统配置都有了
本文展示了在asp.net中利用wcf的stream方式传输大文件，解决了大文件上传问题。主要是存档方便以后遇到该问题是来查阅。贴出部分代码，如果有疑惑或需要完整代码的请留言 WebForm1.aspx.cs
protected void Button1_Click(object sender, EventArgs e)
{
FileData file = new FileData(); file.filename = FileUpload1.FileName; file.data = FileUpload1.PostedFile.InputStream; GetDataService c = new GetDataService(); c.UploadFile(file); Response.Write("文件传输成功！");
}
IService1
namespace WcfService1
{
// 注意: 使用“重构”菜单上的“重命名”命令，可以同时更改代码和配置文件中的接口名“IService1”。
[ServiceContract]
public interface IGetDataService
{
[OperationContract]
void UploadFile(FileData file);
}
[MessageContract]
public class FileData
{
[MessageHeader]
public string filename;
[MessageBodyMember]
public Stream data;
} }
Service1.svc
namespace WcfService1
{
public class GetDataService : IGetDataService
{
public void UploadFile(FileData file)
{ FileStream fs = new FileStream("D:\\我的项目\\WcfService1\\Files\\" + file.filename, FileMode.OpenOrCreate); try
{ BinaryReader reader = new BinaryReader(file.data); byte[] buffer; BinaryWriter writer = new BinaryWriter(fs);
long offset = fs.Length;
writer.Seek((int)offset, SeekOrigin.Begin); do
{ buffer = reader.ReadBytes(1024); writer.Write(buffer); } while (buffer.Length > 0); fs.Close();
file.data.Close(); }
catch (Exception e)
{
throw new Exception(e.Message);
}
finally
{ fs.Close();
file.data.Close(); } }
}
web.config
<configuration> <system.web>
<compilation debug="true" targetFramework="4.0" />
<httpRuntime maxRequestLength="40960" />
</system.web>
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IGetDataService" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="01:10:00" sendTimeout="01:10:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
transferMode="Streamed"
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:52884/mex" binding="basicHttpBinding"
bindingConfiguration="BasicHttpBinding_IGetDataService" contract="IGetDataService"
name="BasicHttpBinding_IGetDataService" />
</client>
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
</system.webServer> </configuration>
看到有好几位同学想要源码的，我重新做了个测试工程，经测试只要网络支持，是可以上传几十M以上的大文件的
附上测试工程项目源码：http://files.cnblogs.com/easywebfactory/WcfService1.rar