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      3.   
          
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      使aspx頁面能接受HTML，asp的頁面傳送的文件
                
                  發表時間：2024-02-15             來源：明輝站整理相關軟件相關文章人氣：          
              
      [摘要]aspx接受aspx頁面的文件很簡單，用HtmlInputFile,就可以了，但是如果接受Html頁面post的文件就不怎么好辦了，我仿照asp的方法做法如下，自己測試通過，拿出來給大家共享，可以限制文件內容，類型，大小，自定義存儲位置，在congfig.xml內html頁的內容：（來自FCKed...
       aspx接受aspx頁面的文件很簡單，用HtmlInputFile,就可以了，但是如果接受Html頁面post的文件
      就不怎么好辦了，我仿照asp的方法做法如下，自己測試通過，拿出來給大家共享，可以限制
      文件內容，類型，大小，自定義存儲位置，在congfig.xml內
      html頁的內容：（來自FCKeditor）
      <html>
       <head>
        <title>FCKeditor - Uploaders Tests</title>
        <script language="javascript">
      function SendFile()
      {
       var sUploaderUrl = cmbUploaderUrl.value ;
       
       if ( sUploaderUrl.length == 0 )
        sUploaderUrl = txtCustomUrl.value ;
       
       if ( sUploaderUrl.length == 0 )
       {
        alert( 'Please provide your custom URL or select a default one' ) ;
        return ;
       }
       
       eURL.innerHTML = sUploaderUrl ;
       txtUrl.value = '' ;
       
       frmUpload.action = sUploaderUrl ;
       frmUpload.submit() ;
      }
      function OnUploadCompleted( errorNumber, fileUrl, fileName, customMsg )
      {
       switch ( errorNumber )
       {
        case 0 : // No errors
         txtUrl.value = fileUrl ;
         alert( 'File uploaded with no errors' ) ;
         break ;
        case 1 : // Custom error
         alert( customMsg ) ;
         break ;
        case 10 : // Custom warning
         txtUrl.value = fileUrl ;
         alert( customMsg ) ;
         break ;
        case 201 :
         txtUrl.value = fileUrl ;
         alert( 'A file with the same name is already available. The uploaded file has been renamed to "' + fileName + '"' ) ;
         break ;
        case 202 :
         alert( 'Invalid file' ) ;
         break ;
        case 203 :
         alert( "Security error. You probably don't have enough permissions to upload. Please check your server." ) ;
         break ;
        default :
         alert( 'Error on file upload. Error number: ' + errorNumber ) ;
         break ;
       }
      }
        </script>
       </head>
       <body>
        <table cellSpacing="0" cellPadding="0" width="100%" border="0" height="100%">
         <tr>
          <td>
           <table cellSpacing="0" cellPadding="0" width="100%" border="0">
            <tr>
             <td nowrap style="height: 43px">
              Select the "File Uploader" to use:<br>
              <select id="cmbUploaderUrl" name="Select1">
               <option selected value="asp/upload.asp">ASP</option>
               <option value="php/upload.php">PHP</option>
               <option value="Upload.aspx?type=image">aspx</option>
              </select>
             </td>
             <td nowrap style="height: 43px">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>
             <td width="100%" style="height: 43px">
              Custom Uploader URL:<BR>
              <input id="txtCustomUrl" style="WIDTH: 100%; BACKGROUND-COLOR: #dcdcdc" disabled type="text">
             </td>
            </tr>
           </table>
           <br>
           <table cellSpacing="0" cellPadding="0" width="100%" border="0">
            <tr>
             <td noWrap>
              <form id="frmUpload" target="UploadWindow" enctype="multipart/form-data" action="" method="post">
               Upload a new file:<br>
               <input type="file" name="NewFile"><br>
               <input type="button" value="Send it to the Server" onclick="SendFile();">
              </form>
             </td>
             <td style="WIDTH: 16px">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>
             <td vAlign="top" width="100%">
              Uploaded File URL:<br>
              <INPUT id="txtUrl" style="WIDTH: 100%" readonly type="text">
             </td>
            </tr>
           </table>
           <br>
           Post URL: <span id="eURL">&nbsp;</span>
          </td>
         </tr>
         <tr>
          <td height="100%">
           <iframe name="UploadWindow" width="100%" height="100%"></iframe>
          </td>
         </tr>
        </table>
       </body>
      </html>
      upload.aspx的內容：
      <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Upload.aspx.cs" Inherits="Upload"%>
      下面是后臺代碼：
      using System;
      using System.Data;
      using System.Configuration;
      using System.Collections;
      using System.IO;
      using System.Text;
      using System.Web;
      using System.Web.Security;
      using System.Web.UI;
      using System.Web.UI.WebControls;
      using System.Web.UI.WebControls.WebParts;
      using System.Web.UI.HtmlControls;
      using System.Xml;
      using System.Collections.Specialized;
      public partial class Upload : System.Web.UI.Page
      {
       public void SendResults(int errorNumber, string fileUrl, string fileName, string customMsg)
       {
        StringBuilder text = new StringBuilder();
        text.Append("<script type=\"text/javascript\">");
        text.Append("window.parent.OnUploadCompleted(" + errorNumber + ",\"" + fileUrl.Replace("\"", "\\\"") + "\",\"" + fileName.Replace("\"", "\\\"") + "\",\"" + customMsg.Replace("\"", "\\\"") + "\") ;\n");
        text.Append(" </script>");
        Response.Write(text.ToString());
        Response.End();
       }
       public void GetConfig(string type, out string[] allowedExt, out string[] denyedExt,out string savePath,out long maxSize)
       { 
         XmlDocument doc = new XmlDocument();
         doc.Load(Server.MapPath(@".\Config.xml"));
         XmlElement root=doc.DocumentElement;
         XmlNodeList imageNodelist=root.GetElementsByTagName(type);
         allowedExt = imageNodelist[0].FirstChild.InnerText.Trim().Split(' ');
         denyedExt = imageNodelist[0].LastChild.InnerText.Trim().Split(' ');
         savePath = root.GetElementsByTagName("userPath").Item(0).InnerText.Trim();
         try
         {
          maxSize = Convert.ToInt64(root.GetElementsByTagName("maxSize").Item(0).InnerText.Trim());
         }
         catch { maxSize = 10*1024; }
       }
       protected void Page_Load(object sender, EventArgs e)
       {
        string[] allowedExt = new string[] { }, denyedExt = new string[] { };
        string savePath = String.Empty;
        long maxSize = 10000;
        string type = Request.QueryString["Type"];
        if(type!=null&&type!=string.Empty)
         type=type.ToLower();
        else 
         type="file";
        if (type == "image") 
        {
         GetConfig("image", out allowedExt, out denyedExt, out savePath,out maxSize);   
        }
        if (type == "file") 
        {
         GetConfig("file", out allowedExt, out denyedExt, out savePath, out maxSize);   
        }
        if (type == "flash")
        {
         GetConfig("flash", out allowedExt, out denyedExt, out savePath, out maxSize);  
        }
        if (savePath == string.Empty  savePath=="")
         savePath = "~/UserFiles/";
        if(!savePath.EndsWith("/"))savePath+="/";

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