Because the code is very simple, there is no more gossip, directly on the code, the small partners themselves read the code to understand.
Foreground code:
Copy Code code as follows:
* * Change Avatar/*
Upload
function _sc () {
$ (". Ckfile"). HTML (""). CSS ("Color", "#535353");
$ ("#_userImgPath"). Val ("");
var str = $ ("#file"). Val ();
if ($.trim (str) = "") {
$ (". Ckfile"). HTML ("Please select a file.") "). CSS (" Color "," red ");
return false;
}
else {
var postfix = str.substring (Str.lastindexof (".") + 1). toUpperCase ();
if (Postfix = = "JPG" | | postfix = = "JPEG" | | | postfix = "PNG" | | postfix = = "GIF" | | postfix = = "BMP") {
$ (' #showimg '). attr (' src ', ' images/loading.gif '). attr ("title", "Crosses, please later ...");
var path = "Upload/userimg";
$.ajaxfileupload ({
URL: '/upload.aspx?path=upload| Userimg&shape=100*100 ',
Secureuri:false,
Fileelementid: ' File ',
DataType: ' Text ',
Success:function (msg) {
if (msg.lastindexof (path) = = 1) {
$ (". Ckfile"). HTML (msg). CSS ("Color", "red");
}
else {
$ (' #showimg '). attr (' src ', msg). attr ("title", "My Avatar");
$ ("#_userImgPath"). Val (msg);
}
}
});
} else {
$ (". Ckfile"). HTML ("file format error.") "). CSS (" Color "," red ");
return false;
}
}
}
Background code:
Copy Code code as follows:
Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Web;
Using System.Web.UI;
Using System.Web.UI.WebControls;
Using SS. Upload;
Using WFC. Fenxiao;
Namespace Wanfangcheng
{
public partial class Upload:basepage
{
File Size 1024 kb
Private long size = 1024;
File type
private String type = ". Jpg|. Jpeg|. Png|. Gif|. BMP ";
Save Name
String name = "";
Save path
private string Path = @ "Upload/userimg";
Save Size
private string shape = "100*100";
protected void Page_Load (object sender, EventArgs e)
{
httpfilecollection files = request.files;
if (Files!= null && files. Count > 0)
{
Name = BaseRole.Instance.UserId.ToString ();
if (request.querystring["size"]!= null)
{
Size = Convert.ToInt32 (request.querystring["size"]);
}
if (request.querystring["path"]!= null)
{
Path = request.querystring["path"]. ToString (). Trim (). Replace (' | ', '/');
}
if (request.querystring["name"]!= null)
{
Name = request.querystring["Name"]. ToString (). Trim ();
}
if (request.querystring["shape"]!= null)
{
Shape = request.querystring["shape"]. ToString (). Trim ();
}
Uploadmethod (files);
}
}
<summary>
Upload pictures
</summary>
<param name= "HC" ></param>
public void Uploadmethod (Httpfilecollection hc)
{
Httppostedfile _file = hc[0];
File size
Long _size = _file. ContentLength;
if (_size <= 0)
{
Response.Write ("File error.") ");
Response.End ();
Return
}
if (Size * 1024 < _size)
{
Response.Write ("The file is too large, the maximum limit is + size +" KB.) ");
Response.End ();
Return
}
Filename
string _name = _file. FileName;
File format
String _tp = System.IO.Path.GetExtension (_name). ToLower ();
if (type. IndexOf (_TP) = =-1)
{
Response.Write ("File format error.") ");
Response.End ();
Return
}
Save path
String _path = HttpContext.Current.Server.MapPath (path) + @ "/" + name + _tp;
Try
{
int w = Convert.ToInt32 (shape. Split (' * ') [0]);
int h = Convert.ToInt32 (shape. Split (' * ') [1]);
Imagehelper.cutforcustom (_file, _path, W, H, 50);
Response.Write (Path + @ "/" + name + _TP);
}
catch (Exception)
{
Response.Write ("Oops, there was a mistake.") ");
Response.End ();
}
}
}
}
is not very practical, but also very easy to understand, the above is the code used in their own projects, small partners if the problem is found in the place, but also please tell. Thank you
