C#上传文档

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1.HttpHelper类：

 复制内容到剪贴板 
using System; 
 using System.Collections.Specialized; 
 using System.IO; 
 using System.Net; 
 using System.Text; 
 
 namespace ConsoleApplication1 
 { 
     public static class HttpHelper 
     { 
         private static readonly Encoding DEFAULTENCODE = Encoding.UTF8; 
 
         /// <summary> 
         /// HttpUploadFile 
         /// </summary> 
         /// <param name="url"></param> 
         /// <param name="file"></param> 
         /// <param name="data"></param> 
         /// <returns></returns> 
         public static string HttpUploadFile(string url, string file, NameValueCollection data) 
         { 
             return HttpUploadFile(url, file, data, DEFAULTENCODE); 
         } 
 
         /// <summary> 
         /// HttpUploadFile 
         /// </summary> 
         /// <param name="url"></param> 
         /// <param name="file"></param> 
         /// <param name="data"></param> 
         /// <param name="encoding"></param> 
         /// <returns></returns> 
         public static string HttpUploadFile(string url, string file, NameValueCollection data, Encoding encoding) 
         { 
             return HttpUploadFile(url, new string[] { file }, data, encoding); 
         } 
 
         /// <summary> 
         /// HttpUploadFile 
         /// </summary> 
         /// <param name="url"></param> 
         /// <param name="files"></param> 
         /// <param name="data"></param> 
         /// <returns></returns> 
         public static string HttpUploadFile(string url, string[] files, NameValueCollection data) 
         { 
             return HttpUploadFile(url, files, data, DEFAULTENCODE); 
         } 
 
         /// <summary> 
         /// HttpUploadFile 
         /// </summary> 
         /// <param name="url"></param> 
         /// <param name="files"></param> 
         /// <param name="data"></param> 
         /// <param name="encoding"></param> 
         /// <returns></returns> 
         public static string HttpUploadFile(string url, string[] files, NameValueCollection data, Encoding encoding) 
         { 
             string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x"); 
             byte[] boundarybytes = Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\n"); 
             byte[] endbytes = Encoding.ASCII.GetBytes("\r\n--" + boundary + "--\r\n"); 
 
             //1.HttpWebRequest 
             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); 
             request.ContentType = "multipart/form-data; boundary=" + boundary; 
             request.Method = "POST"; 
             request.KeepAlive = true; 
             request.Credentials = CredentialCache.DefaultCredentials; 
 
             using (Stream stream = request.GetRequestStream()) 
             { 
                 //1.1 key/value 
                 string formdataTemplate = "Content-Disposition: form-data; name=\"{0}\"\r\n\r\n{1}"; 
                 if (data != null) 
                 { 
                     foreach (string key in data.Keys) 
                     { 
                         stream.Write(boundarybytes, 0, boundarybytes.Length); 
                         string formitem = string.Format(formdataTemplate, key, data[key]); 
                         byte[] formitembytes = encoding.GetBytes(formitem); 
                         stream.Write(formitembytes, 0, formitembytes.Length); 
                     } 
                 } 
 
                 //1.2 file 
                 string headerTemplate = "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\nContent-Type: application/octet-stream\r\n\r\n"; 
                 byte[] buffer = new byte[4096]; 
                 int bytesRead = 0; 
                 for (int i = 0; i < files.Length; i++) 
                 { 
                     stream.Write(boundarybytes, 0, boundarybytes.Length); 
                     string header = string.Format(headerTemplate, "file" + i, Path.GetFileName(files[i])); 
                     byte[] headerbytes = encoding.GetBytes(header);                     
                     stream.Write(headerbytes, 0, headerbytes.Length); 
                     using (FileStream fileStream = new FileStream(files[i], FileMode.Open, FileAccess.Read)) 
                     {                         
                         while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0) 
                         { 
                             stream.Write(buffer, 0, bytesRead); 
                         } 
                     } 
                 } 
 
                 //1.3 form end 
                 stream.Write(endbytes, 0, endbytes.Length); 
             } 
             //2.WebResponse 
             HttpWebResponse response = (HttpWebResponse)request.GetResponse(); 
             using (StreamReader stream = new StreamReader(response.GetResponseStream())) 
             { 
                 return stream.ReadToEnd(); 
             } 
         } 
     } 
 } 

2.调用示例：

 复制内容到剪贴板 
using System; 
 using System.Collections.Specialized; 
 
 namespace ConsoleApplication1 
 { 
     class Program 
     { 
         static void Main(string[] args) 
         { 
             NameValueCollection data = new NameValueCollection(); 
             data.Add("name", "木子屋"); 
             data.Add("url", "http://www.mzwu.com/"); 
             Console.WriteLine(HttpHelper.HttpUploadFile("http://localhost/Test", new string[] { @"E:\Index.htm", @"E:\test.rar" }, data)); 
 
             Console.ReadKey(); 
         } 
     } 
 } 
 
 
摘自：http://www.mzwu.com/article.asp?id=3475 