/// <summary>
/// 裁剪图片并保存
/// </summary>
public bool cropSaveAs(string fileName, string newFileName, int maxWidth, int maxHeight, int cropWidth, int cropHeight, int X, int Y)
{
string fileExt = SysConstant.GetFileExt(fileName); //文件扩展名，不含“.”
if (!IsImage(fileExt))
{
return(false);
}
string newFileDir = SysConstant.GetMapPath(newFileName.Substring(0, newFileName.LastIndexOf(@"/") + 1));
//检查是否有该路径，没有则创建
if (!Directory.Exists(newFileDir))
{
Directory.CreateDirectory(newFileDir);
}
try
{
string fileFullPath = SysConstant.GetMapPath(fileName);
string toFileFullPath = SysConstant.GetMapPath(newFileName);
return(Thumbnail.MakeThumbnailImage(fileFullPath, toFileFullPath, 180, 180, cropWidth, cropHeight, X, Y));
}
catch
{
return(false);
}
}
/// <summary>
/// 文件上传方法
/// </summary>
/// <param name="postedFile">文件流</param>
/// <param name="isThumbnail">是否生成缩略图</param>
/// <param name="isWater">是否打水印</param>
/// <returns>上传后文件信息</returns>
public string fileSaveAs(HttpPostedFile postedFile, bool isThumbnail, bool isWater)
{
try
{
string fileExt = SysConstant.GetFileExt(postedFile.FileName); //文件扩展名，不含“.”
int fileSize = postedFile.ContentLength; //获得文件大小，以字节为单位
string fileName = postedFile.FileName.Substring(postedFile.FileName.LastIndexOf(@"\") + 1); //取得原文件名
string newFileName = SysConstant.GetRamCode() + "." + fileExt; //随机生成新的文件名
string newThumbnailFileName = "thumb_" + newFileName; //随机生成缩略图文件名
string upLoadPath = GetUpLoadPath(); //上传目录相对路径
string fullUpLoadPath = SysConstant.GetMapPath(upLoadPath); //上传目录的物理路径
string newFilePath = upLoadPath + newFileName; //上传后的路径
string newThumbnailPath = upLoadPath + newThumbnailFileName; //上传后的缩略图路径
//检查文件扩展名是否合法
if (!CheckFileExt(fileExt))
{
return("{\"code\": -1, \"msg\": \"不允许上传" + fileExt + "类型的文件！\"}");
}
//检查文件大小是否合法
if (!CheckFileSize(fileExt, fileSize))
{
return("{\"code\": -1, \"msg\": \"文件超过限制的大小啦！\"}");
}
//检查上传的物理路径是否存在，不存在则创建
if (!Directory.Exists(fullUpLoadPath))
{
Directory.CreateDirectory(fullUpLoadPath);
}
//保存文件
postedFile.SaveAs(fullUpLoadPath + newFileName);
//如果是图片，检查图片是否超出最大尺寸，是则裁剪
if (IsImage(fileExt))
{
Thumbnail.MakeThumbnailImage(fullUpLoadPath + newFileName, fullUpLoadPath + newFileName,
800, 800);
}
//如果是图片，检查是否需要生成缩略图，是则生成
if (IsImage(fileExt) && isThumbnail)
{
Thumbnail.MakeThumbnailImage(fullUpLoadPath + newFileName, fullUpLoadPath + newThumbnailFileName,
800, 800, "Cut");
}
int watermarktype = 1;
////如果是图片，检查是否需要打水印
//if (IsWaterMark(fileExt) && isWater)
//{
// switch (watermarktype)
// {
// case 1:
// SysConstant.AddImageSignText(newFilePath, newFilePath, "水印文字", 9, 80, "Tahoma", 12);
// break;
// case 2:
// SysConstant.AddImageSignPic(newFilePath, newFilePath, "watermark.png", 9, 80, 5);
// break;
// }
//}
//处理完毕，返回JOSN格式的文件信息
//return "{\"status\": 1, \"msg\": \"上传文件成功！\", \"name\": \""
// + fileName + "\", \"path\": \"" + newFilePath + "\", \"thumb\": \""
// + newThumbnailPath + "\", \"size\": " + fileSize + ", \"ext\": \"" + fileExt + "\"}";
return("{\"code\": 0, \"msg\": \"上传文件成功！\", \"data\": {\"src\":\"" + newFilePath + "\",\"title\":\"" + fileName + "\",\"thumb\":\"" + newThumbnailPath + "\",\"size\":\"" + fileSize + "\",\"thumb\":\"" + newThumbnailPath + "\",\"ext\":\"" + fileExt + "\"}}");
}
catch
{
return("{\"code\": -1, \"msg\": \"上传过程中发生意外错误！\"}");
}
}