public async Task <IActionResult> UploadImgage(ImgPathEnum ImgPathEnum, bool IsFullPath = false)
{
var multipartBoundary = Request.GetMultipartBoundary();
if (string.IsNullOrEmpty(multipartBoundary))
{
return(BadRequest($"Expected a multipart request, but got '{Request.ContentType}'."));
}
// Used to accumulate all the form url encoded key value pairs in the request.
var formAccumulator = new KeyValueAccumulator();
string targetFilePath = null;
var reader = new MultipartReader(multipartBoundary, HttpContext.Request.Body);
var section = await reader.ReadNextSectionAsync();
while (section != null)
{
// This will reparse the content disposition header
// Create a FileMultipartSection using it's constructor to pass
// in a cached disposition header
var fileSection = section.AsFileSection();
if (fileSection != null)
{
var fileName = fileSection.FileName;
targetFilePath = Path.Combine(_hostingEnvironment.ContentRootPath, Guid.NewGuid().ToString());
using (var targetStream = System.IO.File.Create(targetFilePath))
{
await fileSection.FileStream.CopyToAsync(targetStream);
_logger.LogInformation($"Copied the uploaded file '{fileName}' to '{targetFilePath}'.");
}
}
else
{
var formSection = section.AsFormDataSection();
if (formSection != null)
{
var name = formSection.Name;
var value = await formSection.GetValueAsync();
formAccumulator.Append(name, value);
if (formAccumulator.ValueCount > FormReader.DefaultValueCountLimit)
{
throw new InvalidDataException(
$"Form key count limit {FormReader.DefaultValueCountLimit} exceeded.");
}
}
}
// Drains any remaining section body that has not been consumed and
// reads the headers for the next section.
section = await reader.ReadNextSectionAsync();
}
return(Json(targetFilePath));
}
/// <summary>
/// 上传图像
/// </summary>
/// <param name="HttpContext">上下文</param>
/// <param name="Path">路径枚举</param>
/// <param name="IsFullPath">是否返回全路径</param>
public static string UploadImgageReturnPath(HttpContext HttpContext, ImgPathEnum Path, bool IsFullPath)
{
System.IO.Stream userfile = HttpContext.Request.Body;
string FileName = DateTime.Now.ToString("yyyyMMddHHmmssfff");
string FileExt = HttpContext.Request.Headers["fileext"];
if (userfile == null)
{
return("File Upload error (文件上传错误！)");
}
if (string.IsNullOrEmpty(FileExt))
{
FileExt = "png";
}
FileExt = FileExt.ToLower();
string[] extArr = new string[] { "gif", "jpg", "jpeg", "png", "ico" };
if (string.IsNullOrEmpty(FileExt) || !extArr.Contains(FileExt))
{
return("File format error (文件格式错误！)");
}
string uploadfolder = string.Format("{0}\\img\\{1}\\", ConstDefine.ImgSavePath, (int)Path);
string uploadfileurl = ConstDefine.ImgSiteDomain;
if (!Directory.Exists(uploadfolder))
{
Directory.CreateDirectory(uploadfolder);
}
FileExt = "." + FileExt;
byte[] buffer = new byte[256];
int len;
string FileFullPath = uploadfolder + FileName + FileExt;
FileStream fs = new FileStream(FileFullPath, FileMode.Create, FileAccess.Write);
while ((len = userfile.Read(buffer, 0, buffer.Length)) > 0)
{
fs.Write(buffer, 0, len);
}
fs.Dispose();
string imgUrl = string.Empty;
if (IsFullPath)
{
imgUrl = uploadfileurl + "/" + (int)Path + "/" + FileName + FileExt;
}
else
{
imgUrl = FileName + FileExt;
}
try
{
MakeThumbnail(FileFullPath, FileFullPath + "_small.jpeg", 150, 80);
}
catch (Exception ex)
{
return(imgUrl);
}
return(imgUrl);
}
/// <summary>
/// 获取图片完整访问地址
/// </summary>
/// <param name="url">图片名称</param>
/// <param name="Path">路径枚举</param>
/// <param name="IsSmall">是否获取压缩小图</param>
/// <returns></returns>
public static string GetImgFullUrl(string url, ImgPathEnum Path, bool IsSmall = true)
{
if (IsSmall)
{
return(string.Format("{0}/{1}/{2}{3}", ConstDefine.ImgSiteDomain, (int)Path, url, "_small.jpeg"));
}
else
{
return(string.Format("{0}/{1}/{2}", ConstDefine.ImgSiteDomain, (int)Path, url));
}
}
public JsonResult UploadEditImgage(ImgPathEnum ImgPathEnum, bool IsFullPath = false)
{
string url = Vic.Core.Utils.Common.UploadImgageReturnPath(this.HttpContext, ImgPathEnum, IsFullPath);
return(Json(new { err = "", msg = url }));
}
public ContentResult UploadImgageNew(ImgPathEnum ImgPathEnum, bool IsFullPath = false)
{
string url = Vic.Core.Utils.Common.UploadImgageReturnPath(this.HttpContext, ImgPathEnum, IsFullPath);
return(Content(url));
}