用WebService上傳文件的兩種方案...

 

第二种方案是我查資料弄明白的,這種方法在文件数据不大的时候可以用。但传输大文件时会遇到超时的错误。C#Hunter告訴我一個更好的方案:

 

方案一:
                          对应的解决方法可以参考：Dime Buffered Upload
                           http://www.codeproject.com/cs/webservices/DimeBufferedUpload.asp 
                           源碼:Download source (WinForms, Web Service) - 545 Kb 
                                    Download demo app (WinForms, Web Service) - 493 Kb

 

方案二 :

Webservice:

        public Service1()
       {
           InitializeComponent();
        }
                [WebMethod]
         public string UploadFile(byte[] fs,string FileName)
        {
            try
            {
                
                MemoryStream m = new MemoryStream(fs);
                
                //FileStream f = new FileStream(Server.MapPath(".") + "\\"+ FileName, FileMode.Create);
                FileStream f = new FileStream(@"D:\"+ FileName, FileMode.Create); //這個路徑可以指定的,但是,一定要開放.Net寫的權限
                
                m.WriteTo(f);
                m.Close();
                f.Close();
                f = null;
                m = null;
                return "success !";
             }
            catch(Exception ex)
            {
                   return ex.Message;
                }
        }

 

 

調用頁面
     

                try
                {
                    
                    System.Web.HttpFileCollection oFiles;
                    oFiles = System.Web.HttpContext.Current.Request.Files;
                    string FilePath = oFiles[0].FileName;
                    string FileName = FilePath.Substring(FilePath.LastIndexOf("\\")+1);

                    WebReference.Service1 s1 = new com.foxconn.cr.CostomerRisk.WebReference.Service1();
                    byte[] b = new byte[oFiles[0].ContentLength];
                    System.IO.Stream fs;                
                    
                    fs = (System.IO.Stream)oFiles[0].InputStream;
                    fs.Read(b, 0, oFiles[0].ContentLength);
                    
                    string tt = s1.UploadFile(b, FileName);
                    fs.Close();
                }
                catch(Exception ex)
                {
                    this.L_msg.Visible=true;
                    this.L_msg.Text = ex.ToString();
                }