/// <summary>
/// 转换图片格式
/// </summary>
/// <param name="oldPath">原图片路径</param>
/// <param name="newPath">新图片路径</param>
public static bool changeFormat(string oldPath, string newPath)
{
try
{
//** psd convert to jpg 、gift、png
MagickNet.Magick.Init();
//** find old path
//** eg:"~/Images/yz1309.psd"
MagickNet.Image img = new MagickNet.Image(HttpContext.Current.Server.MapPath(oldPath));
//** set new image size
System.Drawing.Size size = new System.Drawing.Size(img.BaseColumns.ToInt() / 10, img.BaseRows.ToInt() / 10);
img.Resize(size);
string path = newPath.Substring(0, newPath.LastIndexOf("/"));
//** create directory if not exist
string savePath = HttpContext.Current.Server.MapPath(path);
if (!Directory.Exists(savePath))
{
Directory.CreateDirectory(savePath);
}
//** save new file
//** eg:"~/Images/yz1309.jpg"
img.Write(HttpContext.Current.Server.MapPath(newPath));
MagickNet.Magick.Term();
return(true);
}
catch { return(false); }
}
/// <summary>
/// 儲存放縮圖片
/// </summary>
/// <param name="imagePath">圖片路徑</param>
/// <param name="saveToPath">放縮儲存圖片路徑</param>
/// <param name="width">寬度</param>
/// <param name="height">高度</param>
/// <returns>bool:是否儲存成功</returns>
public static bool saveThumbnail(string imagePath, string saveToPath, int width, int height)
{
//初始化
bool recode = false;
try
{
//原圖片是否存在
if (!System.IO.File.Exists(imagePath))
{
throw new Exception("[" + imagePath + "]該圖片路徑不存在!");
}
//引用Image
MagickNet.Image img = new MagickNet.Image(imagePath);
img.Quality = 100;
//引用Bitmap
System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(imagePath);
//原寬
int sourceWidth = bitmap.Width;
//原高
int sourceHeight = bitmap.Height;
//
int widthRate = width, heightRate = height;
//寬比例
if (width < 1 && height > 0)
{
//寬比例
widthRate = Convert.ToInt32((sourceWidth * height) / sourceHeight);
}
//高比例
else if (height < 1 && width > 0)
{
//高比例
heightRate = Convert.ToInt32((sourceHeight * width) / sourceWidth);
}
//比例圖片
img.Resize(new System.Drawing.Size(widthRate, heightRate));
//儲存
img.Write(saveToPath);
//關閉img
img.Dispose();
recode = true;
}
//拋出例外
catch (Exception e)
{
log.Error("MagickScale.saveThumbnail error:" + e.Message);
}
//操作訊息
return(recode);
}
public void ProcessRequest(HttpContext context)
{
string funcName = context.Request.QueryString["funcName"];
string resultMsg = "";
#region MyRegion
Dictionary <string, string> resultDic = new Dictionary <string, string>();
resultDic["result"] = "false";
resultDic["message"] = "";
string fileRootPath = "";
switch (funcName)
{
case "userImg":
{
fileRootPath = Eva.Library.Configuration.ConfigurationManager.AppSettings["UserPhotoUrlRootPath"].ToString();
}
break;
case "businessImg":
{
fileRootPath = Eva.Library.Configuration.ConfigurationManager.AppSettings["FileUpLoadRootPath"].ToString();
}
break;
}
string uploadPath = fileRootPath + "fileuploadpath/";
string uploadName = Eva.Library.Text.NumberTool.GetNoRepeatNumber() + ".png";
string uploadFullPath = Eva.Library.Format.FormatTextTool.GetMapPath(uploadPath + uploadName, HttpContext.Current.Server);
resultDic = upLoadFile(uploadPath, uploadName, context);
if (resultDic["result"] == "true")
{
#region 压缩
string thumbnailPath = fileRootPath + "thumbnailpath/";
string thumbnailName = sara.dd.ldsw.commonclass.commonclass.makeThumbnailName(uploadName);
string thumbnailFullPath = Eva.Library.Format.FormatTextTool.GetMapPath(thumbnailPath + thumbnailName, HttpContext.Current.Server);
MagickNet.Image img = new MagickNet.Image(uploadFullPath);
if (img.Orientation == MagickNet.OrientationType.RightTopOrientation)
{
img.Rotate(90);
img.Orientation = MagickNet.OrientationType.UndefinedOrientation;
}
else if (img.Orientation == MagickNet.OrientationType.BottomRightOrientation)
{
img.Rotate(180);
img.Orientation = MagickNet.OrientationType.UndefinedOrientation;
}
else if (img.Orientation == MagickNet.OrientationType.LeftBottomOrientation)
{
img.Rotate(270);
img.Orientation = MagickNet.OrientationType.UndefinedOrientation;
}
//图片质量
img.Quality = 100;
//調整大小，是等比的，就是说宽长压宽，高长压高
img.Resize(new MagickNet.Geometry(120, 120));
img.Write(thumbnailFullPath);
img.Dispose();
#endregion
}
resultMsg = Eva.Library.Format.FormatEntityTool.FormatDicToJson(resultDic);
#endregion
context.Response.Output.Write(resultMsg);
context.Response.Output.Flush();
}
