public static string UploadImage(System.Web.UI.HtmlControls.HtmlInputFile file, string basePath)
{
jsHelper js = new jsHelper();
if (file.PostedFile.ContentLength > 1024 * 1024)
{
jsHelper.Alert("上传文件不得大于1M");
return("");
}
if (!file.PostedFile.FileName.ToLower().EndsWith(".jpg"))
{
jsHelper.Alert("只能上传jpg图片");
return("");
}
string tempPath = string.Format("{0}/{1}/{2}", DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day);
tempPath = string.Format("{0}/{1}", basePath.TrimEnd(new char[] { '/' }), tempPath);
string tempFile = string.Format("{0}.jpg", BitConverter.ToUInt32(Guid.NewGuid().ToByteArray(), 0).ToString());
string fullPath = HttpContext.Current.Server.MapPath(tempPath);
CDirectory.Create(fullPath);
file.PostedFile.SaveAs(Path.Combine(fullPath, tempFile));
string sReturnUrl = string.Format("{0}/{1}", tempPath, tempFile);
return(sReturnUrl);
}
public Dictionary <string, string> GeneratePath()
{
if (string.IsNullOrEmpty(WebPath.ImagePath))
{
throw new Exception("配置文件中找不到ImagePath");
}
lock (_dicImgTag)
{
_dicImgTag.Clear();
string s = string.Empty;
string copyto = string.Empty;
string Imagedir = string.Empty;
MD5 m = MD5CryptoServiceProvider.Create();
foreach (string encodechar in EncodeHTML.EncodeChars)
{
s = DateTime.Now.Ticks.ToString();
s = s.Insert(DateTime.Now.Millisecond % s.Length, encodechar);
s = GetString(m.ComputeHash(Encoding.UTF8.GetBytes(s)));
//Imagedir = ImgHelp.GetImageDirectory();
copyto = string.Format("{0}/enc{1}{2}.gif", WebPath.ImagePath, Imagedir, s);
CDirectory.Create(copyto.Substring(0, copyto.LastIndexOfAny(new char[] { '\\', '/' })));
File.Copy(string.Format("{0}{1}", WebPath.ImagePath, dicOriginalPath[encodechar]), copyto);
_dicImgTag.Add(encodechar, string.Format("<img src=\"http://img.39.net/enc/{0}{1}.gif\"/>", Imagedir, s));
}
m.Clear();
}
return(_dicImgTag);
}
/// <summary>
/// 保存图片
/// </summary>
/// <param name="inputStream">输入数据流</param>
/// <param name="sRootDirectory">保存的根目录(不要包括根据时间自动生成的目录)</param>
/// <param name="sExtension">扩展名</param>
/// <returns>返回根据时间自动生成的文件路径</returns>
public static string SaveImage(Stream inputStream, string sRootDirectory, string sExtension)
{
sRootDirectory = sRootDirectory.TrimEnd('/', '\\');
string sReturn = GetImageDirectory() + CreateFileName(sExtension);
string path = sRootDirectory + sReturn;
CDirectory.Create(Path.GetDirectoryName(path));
using (FileStream fStream = File.Create(path))
{
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = inputStream.Read(data, 0, data.Length);
if (size > 0)
{
fStream.Write(data, 0, size);
}
else
{
break;
}
}
}
return(sReturn);
}
public static string UploadFile(System.Web.UI.HtmlControls.HtmlInputFile file, string basePath)
{
if (file.PostedFile.ContentLength > 1024 * 1024)
{
jsHelper.Alert("上传文件不得大于1M");
return("");
}
if (!file.PostedFile.FileName.ToLower().EndsWith(".jpg"))
{
jsHelper.Alert("只能上传jpg图片");
return("");
}
string tempPath = string.Format("{0}/{1}/{2}", DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day);
string tempFile = string.Format("{0}.jpg", BitConverter.ToUInt32(Guid.NewGuid().ToByteArray(), 0).ToString());
CDirectory.Create(Path.Combine(basePath, tempPath));
file.PostedFile.SaveAs(Path.Combine(Path.Combine(basePath, tempPath), tempFile));
string sReturnUrl = string.Format("http://bbsimg.39.net/{0}/{1}", tempPath, tempFile);
return(sReturnUrl);
}
public static void SaveImage(Stream inputStream, string sFilePath)
{
CDirectory.Create(Path.GetDirectoryName(sFilePath));
using (FileStream fStream = File.Create(sFilePath))
{
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = inputStream.Read(data, 0, data.Length);
if (size > 0)
{
fStream.Write(data, 0, size);
}
else
{
break;
}
}
}
}
/// <summary>
/// 保存缩略图片
/// </summary>
/// <param name="inputStream">输入数据流</param>
/// <param name="sRootDirectory">保存的根目录(不要包括根据时间自动生成的目录)</param>
/// <param name="sExtension">扩展名</param>
/// <param name="iWidth">图片宽度（缩略后）</param>
/// <param name="iHeight">图片高度（缩略后）</param>
/// <returns></returns>
public static string SaveThumbnailImage(Stream inputStream, string sRootDirectory, string sExtension, int iWidth, int iHeight)
{
Image image = Image.FromStream(inputStream);
image = image.GetThumbnailImage(iWidth, iHeight, null, System.IntPtr.Zero);
MemoryStream newStream = new MemoryStream();
image.Save(newStream, GetImageType(sExtension));
newStream.Seek(0, SeekOrigin.Begin);
//保存
sRootDirectory = sRootDirectory.TrimEnd('/', '\\');
string sReturn = GetImageDirectory() + "T" + CreateFileName(sExtension);
string path = sRootDirectory + sReturn;
CDirectory.Create(Path.GetDirectoryName(path));
using (FileStream fStream = File.Create(path))
{
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = newStream.Read(data, 0, data.Length);
if (size > 0)
{
fStream.Write(data, 0, size);
}
else
{
break;
}
}
}
return(sReturn);
}
public static void Write(FileEntity file)
{
CDirectory.Create(file.FilePath);
Write(file.FilePath + "\\" + file.FileName, file.FileContent);
}
