javascript判断文件是否存在

1. 客户端

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<script language="javascript">
function FileExist()
{
  var sfso=new ActiveXObject("Scripting.FileSystemObject");
  var fPath="[The path of the file]";
  if(sfso.FileExists(fPath))
  {
           alert("Exist");
  }
  else
  {
    alert("Doesn't exist");
      }
}
</script>

2. 服务器端

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<script language="javascript">
function FileExist()
{
  var xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  xmlhttp.open("GET",FileURL,false);
        xmlhttp.send();
        if(xmlhttp.readyState==4)
  {  
           if(xmlhttp.status==200) alert("Exist");  
             else if(xmlhttp.status==404) alert("Doesn't exist");
             else alert("Don't know"); 
      }
 }
</script>

 

  

posted @   raysbo  阅读(6128)  评论(0编辑  收藏  举报
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