/// <summary>
/// 单个文件上传(只获取第一个文件,返回的文件名是文件的md5值),返回为json数据格式,成功返回{status:"success",website:"a.jpg"},失败,返回{status:"error",website:"error"}
/// </summary>
/// <param name="context">上下文</param>
/// <param name="FilePath">文件路径</param>
/// <param name="outFileName">返回文件的md5</param>
/// <returns>返回json状态信息</returns>
public static string FileUploadSingle(HttpContextBase context, string FilePath, out string outFileName)
{
string json = "";
//找到目标文件对象
HttpFileCollectionBase hfc = context.Request.Files;
HttpPostedFileBase hpf = hfc[0];
if (hpf.ContentLength > 0)
{
//根据文件的md5的hash值做文件名,防止文件的重复和图片的浪费
string FileName = CreateDateTimeForFileName(hpf.FileName); //CreateDateTimeForFileName(hpf.FileName);//自动生成文件名
string file = System.IO.Path.Combine(FilePath,
FileName);
if (!Directory.Exists(FileOperate.MapPath(FilePath)))
{
Directory.CreateDirectory(FilePath);
}
hpf.SaveAs(file);
json = "{status:\"success\",website:\"" + FileName + "\"}";
outFileName = FileName;
}
else
{
json = "{status:\"error\",website:\"error\"}";
outFileName = FilePath;
}
return(json);
}
/// <summary>
/// 是否接连删除该路径下的small,middle中的图片
/// </summary>
/// <param name="VirtualFilePath">虚拟路径</param>
/// <param name="IsDeleteForAll">是否需要删除该目录下的small,middle目录中的缩略图</param>
public static void FileDelete(string VirtualFilePath, bool IsDeleteForAll)
{
//物理路径
string RealFilePath = HttpContext.Current.Server.MapPath(VirtualFilePath);
DelFile(RealFilePath);
//是否需要删除该目录下的small,middle目录中的缩略图
if (IsDeleteForAll)
{
//文件名
string FileName = Path.GetFileName(RealFilePath);
//返回文件目录信息
string FilePath = FileOperate.MapPath(RealFilePath);
//小图片地址
string SmallPath = FilePath + "/small/" + FileName;
//中图片地址
string MiddlePath = FilePath + "/middle/" + FileName;
DelFile(SmallPath);
DelFile(MiddlePath);
}
}
/// <summary>
/// 单个文件上传(只获取第一个文件,返回的文件名是文件的md5值),返回为json数据格式,成功返回{status:"success",website:"a.jpg"},失败,返回{status:"error",website:"error"}
/// </summary>
/// <param name="context">上下文</param>
/// <param name="FilePath">文件路径</param>
/// <param name="outFileName">返回文件的md5</param>
/// <returns>返回json状态信息</returns>
public static string FileUploadMulti(HttpContext context, string FilePath, out string[] outFileName)
{
string json = "";
//找到目标文件对象
HttpFileCollection hfc = context.Request.Files;
outFileName = new string[hfc.Count];
for (int i = 0; i < hfc.Count; i++)
{
if (hfc[i].ContentLength > 0)
{
//根据文件的md5的hash值做文件名,防止文件的重复和图片的浪费
string FileName = CreateDateTimeForFileName(hfc[i].FileName); //CreateDateTimeForFileName(hpf.FileName);//自动生成文件名
string file = System.IO.Path.Combine(FilePath,
FileName);
if (!Directory.Exists(FileOperate.MapPath(file)))
{
Directory.CreateDirectory(file);
}
hfc[i].SaveAs(file);
outFileName[i] = FileName;
}
}
//如果文件非空,就返回json数据
if (outFileName.Count() > 0)
{
json = "{status:\"success\",website:\"" + string.Join(",", outFileName) + "\"}";
}
else
{
json = "{status:\"error\",website:\"error\"}";
}
return(json);
}
