private static void SaveFile(ICompatiblePostedFile file, string filePath)
{
using (var fs = new FileStream(filePath, FileMode.Create))
{
file.CopyToAsync(fs);
fs.Flush();
}
}
private async void SaveFile(ICompatiblePostedFile imgFile, string targetPath)
{
using (FileStream fs = new FileStream(targetPath, FileMode.Create))
{
await imgFile.CopyToAsync(fs);
fs.Flush();
}
}
/// <summary>
///
/// </summary>
/// <param name="dir"></param>
/// <param name="file"></param>
/// <returns></returns>
public static string Upload(string dir, ICompatiblePostedFile file)
{
var dirPath = Cms.PhysicPath + dir;
var fileName = file.GetFileName();
var filePath = dirPath + file.GetFileName();
if (File.Exists(filePath))
{
return("{\"error\":\"文件已经存在\"}");
}
using (var fs = new FileStream(filePath, FileMode.Create))
{
file.CopyToAsync(fs);
fs.Flush();
}
return("{\"url\":\"" + dir + fileName + "\"}");
}
/// <summary>
/// 处理上传
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public Task UploadRequest(ICompatibleHttpContext context)
{
context.Response.ContentType("application/json; charset=utf-8");
var path = context.Request.GetPath();
//String aspxUrl = path.Substring(0, path.LastIndexOf("/") + 1);
String saveUrl = $"{(this._appPath == "/" ? "" : this._appPath)}/{this._rootPath}";
//定义允许上传的文件扩展名
Hashtable extTable = new Hashtable();
extTable.Add("image", "gif,jpg,jpeg,png,bmp,webp");
extTable.Add("flash", "swf,flv");
extTable.Add("media", "swf,flv,mp3,wav,wma,wmv,mid,avi,mpg,asf,rm,rmvb");
extTable.Add("file", "doc,docx,xls,xlsx,ppt,htm,html,txt,zip,rar,gz,bz2,7z");
//最大文件大小
int maxSize = 10240000;
ICompatiblePostedFile imgFile = context.Request.File("imgFile");
if (imgFile == null)
{
return(this.showError(context, "请选择文件。"));
}
String dirPath = EnvUtil.GetBaseDirectory() + this._rootPath;
checkDir:
bool isCreate = false;
if (!Directory.Exists(dirPath))
{
Directory.CreateDirectory(dirPath).Create();
if (!isCreate)
{
isCreate = true;
goto checkDir;
}
return(showError(context, "上传目录不存在。"));
}
String dirName = context.Request.Query("dir");
if (String.IsNullOrEmpty(dirName))
{
dirName = "image";
}
if (!extTable.ContainsKey(dirName))
{
return(this.showError(context, "目录名不正确。"));
}
String fileName = imgFile.GetFileName();
String fileExt = Path.GetExtension(fileName).ToLower();
if (imgFile == null || imgFile.GetLength() > maxSize)
{
return(this.showError(context, "上传文件大小超过限制。"));
}
if (String.IsNullOrEmpty(fileExt) ||
Array.IndexOf(((String)extTable[dirName]).Split(','), fileExt.Substring(1).ToLower()) == -1)
{
return(this.showError(context, "上传文件扩展名是不允许的扩展名。\n只允许" + ((String)extTable[dirName]) + "格式。"));
}
//创建文件夹
dirPath += dirName + "/";
saveUrl += dirName + "/";
if (!Directory.Exists(dirPath))
{
Directory.CreateDirectory(dirPath).Create();
}
String ymd = DateTime.Now.ToString("yyyyMM", DateTimeFormatInfo.InvariantInfo);
dirPath += ymd + "/";
saveUrl += ymd + "/";
if (!Directory.Exists(dirPath))
{
Directory.CreateDirectory(dirPath);
}
String originName = UploadUtils.GetUploadFileName(imgFile);
String newFileName = originName + fileExt;
//String newFileName = DateTime.Now.ToString("yyyyMMddHHmmss_ffff", DateTimeFormatInfo.InvariantInfo) + fileExt;
// 自动将重复的名称命名
String targetPath = dirPath + newFileName;
int i = 0;
while (File.Exists(targetPath))
{
i++;
newFileName = $"{originName}_{i.ToString()}{fileExt}";
targetPath = dirPath + newFileName;
}
using (FileStream fs = new FileStream(targetPath, FileMode.Create))
{
imgFile.CopyToAsync(fs);
fs.Flush();
}
String fileUrl = saveUrl + newFileName;
Hashtable hash = new Hashtable();
hash["error"] = 0;
hash["url"] = fileUrl;
return(context.Response.WriteAsync(JsonAnalyzer.ToJson(hash)));
}