/// <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 = SimonUtils.GetFileExt(fileName); //文件扩展名，不含“.”
if (!IsImage(fileExt))
{
return(false);
}
string newFileDir = SimonUtils.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 = SimonUtils.GetMapPath(fileName);
string toFileFullPath = SimonUtils.GetMapPath(newFileName);
return(SimonThumbnail.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 = SimonUtils.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 = SimonUtils.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 = SimonUtils.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("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("文件超过限制的大小");
}
//检查上传的物理路径是否存在，不存在则创建
SimonUtils.CreateDir(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) && (Upload_PicMaxWidth > 0 || Upload_PicMaxHeight > 0))
{
SimonThumbnail.MakeThumbnailImage(fullUpLoadPath + newFileName, fullUpLoadPath + newFileName,
Upload_PicMaxWidth, Upload_PicMaxHeight);
}
//如果是图片，检查是否需要生成缩略图，是则生成
if (IsImage(fileExt) && isThumbnail && Upload_PicThumbnailWidth > 0 && Upload_PicThumbnailHeight > 0)
{
SimonThumbnail.MakeThumbnailImage(fullUpLoadPath + newFileName, fullUpLoadPath + newThumbnailFileName,
Upload_PicThumbnailWidth, Upload_PicThumbnailHeight, "Cut");
}
//如果是图片，检查是否需要打水印
if (IsWaterMark(fileExt) && isWater)
{
switch (Upload_PicWaterMarkType)
{
case 1:
SimonWaterMark.AddImageSignText(newFilePath, newFilePath, Upload_PicWaterMark_Txt, 9, 63, "黑体", 16);
break;
case 2:
SimonWaterMark.AddImageSignPic(newFilePath, newFilePath, Upload_PicWaterMark_PicUrl, 9, 63, 6);
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("success|" + newFilePath + "");
}
catch
{
return("上传过程中发生意外错误");
}
}