//上传文件
function changfile(obj, imgid) {
var fileName = $(obj).val();
if (fileName.indexOf("\") != -1) fileName = fileName.substring(fileName.lastIndexOf("\") + 1, fileName.length);
//开始提交
$("#form").ajaxSubmit({
url: "ashx/UploadImage.ashx?filename=" + fileName + "&folder=product ",
type: "post",
dataType: "text",
timeout: 600000,
beforeSubmit: function (formData, jqForm, options) {
$("#img1").attr("src", "images/upfile.jpg");
},
success: function (data) {
var imageinfo = eval('(' + data + ')');
if (imageinfo.msg == "1") {
$("#div_file").append("<div class='outer' imgsrc='" + imageinfo.imagepath + "'>" +
"<span class='glyphicon glyphicon-trash'></span>" +
"<img src='" + imageinfo.imagepath + "' style=' 80px;height: 80px' alt='上传的图片' class='img_create' /></div>");
$(":text[name='OriginalImage']").val($(":text[name='OriginalImage']").val() + "|" + imageinfo.imagepath);
$(obj).val("");
}
},
error: function (data, status, e) {
alert("上传失败，错误信息：" + e);
$(obj).val("");
}
});
}
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
context.Response.Buffer = true;
context.Response.ExpiresAbsolute = DateTime.Now.AddDays(-1);
context.Response.Expires = 0;
context.Response.CacheControl = "no-cache";
context.Request.ContentEncoding = Encoding.GetEncoding("UTF-8");
context.Response.ContentEncoding = Encoding.GetEncoding("UTF-8");
context.Response.Charset = "UTF-8";
string fi = context.Request["fileName"];//接收文件名
string folder = context.Request["folder"];//接收文件夹名称
HttpFileCollection _upfile = context.Request.Files;
StringBuilder sb = new StringBuilder();
string strFileName = string.Empty;
for (int i = 0; i < _upfile.Count; i++)
{
strFileName = _upfile[i].FileName;
if (strFileName != "")
{
FileInfo f = new FileInfo(strFileName);
strFileName = f.Name;
}
// if (Common.ReqStr("filename") != "" && strFileName == Common.ReqStr("filename"))
// {
context.Response.Write(fileSaveAs(_upfile[i], folder)); break;
// }
}
}
1 /// <summary>
2 /// 文件上传方法
3 /// </summary>
4 /// <param name="_postedFile"></param>
5 /// <param name="folder">存储文件夹</param>
6 /// <returns></returns>
7 public string fileSaveAs(HttpPostedFile _postedFile, string folder)
8 {
9
10 try
11 {
12 string fileName = _postedFile.FileName;
13 string _fileExt = _postedFile.FileName.Substring(fileName.LastIndexOf(".") + 1).Trim().ToLower();
14 //验证合法的文件
15 string[] strArray = { "jpg", "png", "jpge", "gif", "bmp", "jpeg" };
16 if (!strArray.Contains(_fileExt))
17 {
18 return "{msg: 0, imagepath: "不允许上传" + _fileExt + "类型的文件！"}";
19 }
20 if (_postedFile.ContentLength > 4194304)
21 {
22 return "{msg: 0, imagepath: "文件大小不能超过4MB！"}";
23 }
24 if (fileName.IndexOf(' ') > -1)
25 {
26 fileName = fileName.Substring(fileName.LastIndexOf(' ') + 1);
27 }
28 else if (fileName.IndexOf('/') > -1)
29 {
30 fileName = fileName.Substring(fileName.LastIndexOf('/') + 1);
31 }
32
33 //string uploadDir = HttpContext.Current.Request.MapPath("~/images/");
34 string uploadDir = "/images/";//上传地址
35 if (!string.IsNullOrEmpty(folder))
36 {
37 uploadDir = "/images/" + folder + "/";
38 }
39
40
41 //检查是否有该路径没有就创建
42 if (!Directory.Exists(HttpContext.Current.Server.MapPath(uploadDir)))
43 {
44 Directory.CreateDirectory(HttpContext.Current.Server.MapPath(uploadDir));
45 }
46 string strFileExt = fileName.Substring(fileName.LastIndexOf("."));
47 strFileExt = ".jpg";
48 Random r = new Random();
49 string strNewFileName = DateTime.Now.ToString("yyyyMMddhhmmss") + r.Next(1, 9);
50 string uploadPath = uploadDir + strNewFileName + strFileExt;
51
52
53 _postedFile.SaveAs(HttpContext.Current.Server.MapPath(uploadPath));
54 System.Drawing.Image image = System.Drawing.Image.FromStream(_postedFile.InputStream);
55 float w = image.Width;
56 float h = image.Height;
57 string fileType = Path.GetExtension(fileName).ToLower();
58
59 return "{msg: 1, imagepath: "" + uploadPath.Replace("~/", "/") + ""}";
60 }
61 catch (Exception ex)
62 {
63 return "{msg: 0, imagepath: "上传过程中发生意外错误！+" + ex.Message + ""}";
64 }
65 }