从html页面Post附件到aspx接收页

客户端例子：

     < form  id ="fResAtt"  name ="fResAtt"  enctype ="multipart/form-data"  action ="http://bill.xxxx.net/UploadResAttService.aspx"  method ="post"  target ="_blank" >
         < input  id ="__EVENTTARGET"  name ="__EVENTTARGET"  type ="hidden"  value =""   />  
         < input  id ="__EVENTARGUMENT"  name ="__EVENTARGUMENT"  type ="hidden"  value =""   />
         < script  language ="javascript"  type ="text/javascript" >
            <!--
            function __doPostBack(eventTarget, eventArgument) 
            { 
                var fr = document.getElementById('fResAtt');
                if (fr.onsubmit == null || fr.onsubmit()) 
                { 
                    fr.__EVENTTARGET.value = eventTarget; 
                    fr.__EVENTARGUMENT.value = eventArgument; 
                    
                    fr.submit(); 
                } 
            } 
            //-->
         </ script >
        
         < input  id ="resumeID"  name ="resumeID"  type ="hidden"  value ="C212CFB7-1675-445D-8101-A593E99EE126"   />
         < input  id ="attFile"  name ="attFile"  type ="file"   />
         < input  id ="submitAtt"  name ="submitAtt"  type ="button"  value ="提交"  onclick ="__doPostBack('', '');"   />
     </ form >

此hmtl页包含一下类型为file的input，此数据会被post到另一个aspx接引页，提交时定义一个__doPostBack的js函数，在函数中使form进行submit()。

接收的aspx页

     protected   void  Page_Load( object  sender, EventArgs e)
     {    
        if (!String.IsNullOrEmpty(GetValue("resumeID")))
        {
            ResumeAttachmentConfiguration attConfig = JobConfiguration.GetConfig().ResumeAttachmentConfiguration;
            Guid resumeID = new Guid(GetValue("resumeID"));

            HttpPostedFile postedFile = Request.Files[0];

            //上传文件类型限制
            bool allowedType = false;
            ArrayList typeList = attConfig.GetAllowedAttachmentTypeList();

            string[] extensions = postedFile.FileName.Split('.');
            string fileExtension = extensions[extensions.Length - 1].ToString();//获取上传文件名的扩展名

            foreach (string attType in typeList)
            {
                if (attType.Trim().ToLower() == fileExtension.ToLower())
                {
                    allowedType = true;
                    break;
                }
            }

            if (!allowedType)
            {
                OutputErrorMessage("上传的文件类型不在允许范围之内");
            }

            // 上传文件大小限制
            if (postedFile.ContentLength > attConfig.MaxAttachmentSize * 1000)
            {
                OutputErrorMessage("上传的附件大小超出允许范围");
            }

            //添加简历附件
            ResumeAttachment att = new ResumeAttachment(postedFile, resumeID);
            try
            {
                ResumeAttachments.AddAttachment(att);
            }
            catch (Exception ex)
            {
                OutputErrorMessage(ex.Message);
            }

            OutputSusscessMessage();
        }

        OutputErrorMessage("请提供简历UID");
    }

     private   string  GetValue( string  name)
     {
        return Request.Form.Get(name);
    }
     private   void  OutputMessage( string  msg)
     {
        Response.Output.Write(msg);
        Response.End();
    }
     private   void  OutputErrorMessage( string  msg)
     {
        OutputMessage("flase:" + msg);
    }
     private   void  OutputSusscessMessage()
     {
        OutputMessage("true:" + "成功添加了简历附件");
    }

HttpPostedFile postedFile  =  Request.Files[ 0 ];方法提取了第一个Post过来的附件。

转载于:https://www.cnblogs.com/BillChen/archive/2006/05/15/400311.html