WCF利用Stream上传大文件
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
============ 欢迎各位老板打赏~ ===========
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