在某些版本浏览器下ajaxFileUpload上传文件会提示下载,
1:为什么?
可以观察到,即便返回 JsonResult 在返回的头中也没有任何消息体,直接理解为文本了。
2:解决方案
前端:
function uploadImg(fimgi) {
if (("#fimg" + fimgi).val().length > 0) { //alert(("#fimg" + fimgi).val().length);}
else {
alert("请选择图片");
return;
}
.ajaxFileUpload({ type: 'post', url: "/product/UploadProductImage?fimgi=" + fimgi, secureuri: false, fileElementId: 'fimg' + fimgi, dataType: "json", success: function (data) { alert("上传成功!"); //alert(data.O);("#Img" + fimgi).val(data.O);
},
error: function (XMLHttpRequest, textStatus, e) {
alert(textStatus);
alert(e);
}
});
}
后台改为范围ContentResult,且,ContentType = "text/html"。
public ContentResult UploadProductImage(int fimgi)
{
HttpPostedFileBase head = this.Request.Files["fimg"+fimgi];if (head == null)
{
return new ContentResult
{
Content = new JavaScriptSerializer { MaxJsonLength = int.MaxValue }.Serialize(new R() { F = 1, M = "对不起,无上传内容!" }),
ContentType = "text/html"
};
}var supportedTypes = new[] { "jpg", "jpeg", "png", "gif", "bmp" };
var fileExt = System.IO.Path.GetExtension(head.FileName).Substring(1);
if (!supportedTypes.Contains(fileExt))
{
return new ContentResult
{
Content = new JavaScriptSerializer { MaxJsonLength = int.MaxValue }.Serialize(new R() { F = 1, M = "对不起,只能上传 jpg, jpeg, png, gif, bmp!" }),
ContentType = "text/html"
};
}if (head.ContentLength > 1024 * 1024)
{
return new ContentResult
{
Content = new JavaScriptSerializer { MaxJsonLength = int.MaxValue }.Serialize(new R() { F = 1, M = "对不起,大小超出限制1M!" }),
ContentType = "text/html"
};
}var r = new Random();
var filename = Guid.NewGuid().ToString("N") + "." + fileExt;
string path = this.Server.MapPath("~/upload/product");if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}var filepath = Path.Combine(path, filename);
head.SaveAs(filepath);
string webPath = "/upload/product/" + filename;return new ContentResult
{
Content = new JavaScriptSerializer { MaxJsonLength = int.MaxValue }.Serialize(new R()
{
F = 0,
M = "上传成功,保存为:" + webPath + "!",
O = webPath
}),
ContentType = "text/html"
};
}
本文转自最课程陆敏技博客园博客,原文链接:http://www.cnblogs.com/luminji/p/4677103.html,如需转载请自行联系原作者