WCF+上传+大文件处理
大文件处理的方式拆分读取，此文只为记录文件处理方式，供日后查阅。
源码来自http://blog.csdn.net/lywust/article/details/7009248
经过改编将源码改编为文件上传的功能如下(处理几个GB的文件应该是没有问题的)
客户端
1 public partial class WebForm1 : System.Web.UI.Page 2 { 3 protected void Page_Load(object sender, EventArgs e) 4 { 5 6 } 7 8 protected void Button1_Click(object sender, EventArgs e) 9 { 10 BigFileRead(@"E:\工具\开发工具\数据库\SqlServer\2008 r2\cn_sql_server_2008_r2_enterprise_x86_x64_ia64_dvd_522233.iso"); 11 Response.Write("文件传输成功！"); 12 } 13 14 private void BigFileRead(string strFilePath) 15 { 16 UploadService c = new UploadService(); 17 //每次读取的字节数 18 int iBufferSize = 1024000; 19 byte[] buffer = new byte[iBufferSize]; 20 FileStream fs = null; 21 try 22 { 23 fs = new FileStream(strFilePath, FileMode.Open); 24 //文件流的长度 25 long lFileSize = fs.Length; 26 //文件需要读取次数 27 int iTotalCount = (int)Math.Ceiling((double)(lFileSize / iBufferSize)); 28 //当前读取次数 29 int iTempCount = 0; 30 31 while (iTempCount < iTotalCount) 32 { 33 //每次从最后读到的位置读取下一个[iBufferSize]的字节数 34 fs.Read(buffer, 0, iBufferSize); 35 ////将字节转换成字符 36 //string strRead = Encoding.Default.GetString(buffer); 37 ////此处加入你的处理逻辑 38 //Console.Write(strRead); 39 c.UploadFile("aaa.iso",buffer); 40 iTempCount++; 41 } 42 43 } 44 catch (Exception ex) 45 { 46 //异常处理 47 } 48 finally 49 { 50 if (fs != null) 51 { 52 fs.Dispose(); 53 } 54 } 55 } 56 }
1 <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WcfService1.WebForm1" %> 2 3 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 4 5 <html xmlns="http://www.w3.org/1999/xhtml"> 6 <head runat="server"> 7 <title></title> 8 </head> 9 <body> 10 <form id="form1" runat="server"> 11 <div> 12 13 <asp:FileUpload ID="FileUpload1" runat="server" /> 14 <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="上传" /> 15 16 </div> 17 </form> 18 </body> 19 </html>
配置文件（因在一个工程下所以包含服务端和客户端配置文件）
1 <?xml version="1.0" encoding="utf-8"?> 2 <configuration> 3 4 <system.web> 5 <compilation debug="true" targetFramework="4.0" /> 6 <httpRuntime maxRequestLength="409600000" /> 7 </system.web> 8 <system.serviceModel> 9 <bindings> 10 <basicHttpBinding> 11 <binding name="BasicHttpBinding_IUploadService" closeTimeout="00:01:00" 12 openTimeout="00:01:00" receiveTimeout="01:10:00" sendTimeout="01:10:00" 13 allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" 14 maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" 15 transferMode="Streamed" 16 useDefaultWebProxy="true"> 17 <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" 18 maxBytesPerRead="4096" maxNameTableCharCount="16384" /> 19 <security mode="None"> 20 <transport clientCredentialType="None" proxyCredentialType="None" 21 realm="" /> 22 <message clientCredentialType="UserName" algorithmSuite="Default" /> 23 </security> 24 </binding> 25 </basicHttpBinding> 26 </bindings> 27 <client> 28 <endpoint address="http://localhost:40121/mex" binding="basicHttpBinding" 29 bindingConfiguration="BasicHttpBinding_IUploadService" contract="IUploadService" 30 name="BasicHttpBinding_IUploadService" /> 31 </client> 32 </system.serviceModel> 33 <system.webServer> 34 <modules runAllManagedModulesForAllRequests="true"/> 35 </system.webServer> 36 37 </configuration>
服务端代码
1 /// <summary> 2 /// 3 /// </summary> 4 [ServiceContract] 5 public interface IUploadService 6 { 7 /// <summary> 8 /// 9 /// </summary> 10 /// <param name="fileName"></param> 11 /// <param name="fileBuffer"></param> 12 [OperationContract] 13 void UploadFile(string fileName, byte[] fileBuffer); 14 }
1 /// <summary> 2 /// 3 /// </summary> 4 public class UploadService : IUploadService 5 { 6 /// <summary> 7 /// 8 /// </summary> 9 /// <param name="fileName">文件名</param> 10 /// <param name="fileBuffer">文件流字节</param> 11 public void UploadFile(string fileName,byte[] fileBuffer) 12 { 13 FileStream fs = new FileStream("D:\\" + fileName, FileMode.OpenOrCreate); 14 BinaryWriter writer = new BinaryWriter(fs); 15 try 16 { 17 long offset = 0;//fs.Length; 18 writer.Seek((int)offset, SeekOrigin.End); 19 writer.Write(fileBuffer); 20 } 21 catch (Exception e) 22 { 23 } 24 finally 25 { 26 writer.Close(); 27 writer.Dispose(); 28 fs.Close(); 29 } 30 } 31 }
代码下载 大文件处理[上传].rar
