实用的asp单文件图片上传系统并返回文件名

<%@ language="javascript"%>
<%var self = Request.serverVariables("SCRIPT_NAME");
if (Request.serverVariables("REQUEST_METHOD")=="POST")
{
var oo = new uploadFile();
oo.path = "../../pro_img";//存放路径,为空表示当前路径,默认为uploadFile
oo.named = "date";//命名方式,date表示用日期来命名,file表示用文件名本身,默认为file
oo.ext = "jpg,bmp,gif,png";//允许上传的扩展名,all表示都允许,默认为all
oo.over = true;//当存在相同文件名时是否覆盖,默认为false
oo.size = 1*1024*1024;//最大字节数限制,默认为1G
oo.upload();
Response.write('');
}

//ASP无组件上传类
function uploadFile()
{
var bLen = Request.totalBytes;
var bText = Request.binaryRead(bLen);
var oo = Server.createObject("ADODB.Stream");
oo.mode = 3;
this.path = "uploadFile";
this.named = "file";
this.ext = "all";
this.over = false;
this.size = 1*1024*1024*1024;//1GB

//文件上传
this.upload = function ()
{
var o = this.getInfo();
if (o.size>this.size)
{
alert("文件过大,不能上传!");
return;
}
var f = this.getFileName();
var ext = f.replace(/^.+\./,"");
if (this.ext!="all"&&!new RegExp(this.ext.replace(/,/g,"|"),"ig").test(ext))
{
alert("目前暂不支持扩展名为 "+ext+" 的文件上传!");
return;
}
if (this.named=="date")
{
f = new Date().toLocaleString().replace(/\D/g,"") + "." + ext;
}

oo.open();
oo.type = 1;
oo.write(o.bin);
this.path = this.path.replace(/[^\/\\]$/,"$&/");
var fso = Server.createObject("Scripting.FileSystemObject");
if(this.path!=""&&!fso.folderExists(Server.mapPath(this.path)))
{
fso.createFolder(Server.mapPath(this.path));
}
try
{
oo.saveToFile(Server.mapPath(this.path+f),this.over?2:1);
Response.write ('');
Response.write ('');

}

//上面代码中form1.img.value 改成你的 上一页面中 需要返回名称的表单和表单域名称。
catch(e)
{
alert("对不起,此文件已存在！");
}
oo.close();
delete(oo);

}

//获取二进制和文件字节数
this.getInfo = function ()
{
oo.open();
oo.type=1;
oo.write(bText);
oo.position = 0;
oo.type=2;
oo.charset="unicode";
var gbCode=escape(oo.readText()).replace(/%u(..)(..)/g,"%$2%$1");
var sPos=gbCode.indexOf("%0D%0A%0D%0A")+12;
var sLength=bLen-(gbCode.substring(0,gbCode.indexOf("%0D%0A")).length/3)-sPos/3-6;
oo.close();

oo.open();
oo.type = 1;
oo.write(bText);
oo.position=sPos/3;
var bFile=oo.read(sLength);
oo.close();

return { bin:bFile, size:sLength };
}

//获取文件名
this.getFileName = function ()
{
oo.open();
oo.type = 2;
oo.writeText(bText);
oo.position = 0;
oo.charset = "gb2312";
var fileName = oo.readText().match(/filename=\"(.+?)\"/i)[1].split("\\").slice(-1)[0];
oo.close();
return fileName;
}

function alert(msg)
{
Response.write('');
}
}
%>
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http://www.w3.org/1999/xhtml">










      

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