using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Collections;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Net;
using System.Threading;
/// <summary>
/// UploadFile 的摘要说明
/// </summary>
namespace HangHaiControls.photo
{
public class microUploadFile
{
private string mServerPath;//存储路径,例如：d:/Upload/
private string mShowPath;// '存储及显示时的目录，例如：album 此目录一起存储到数据库的文件名称中
//'上两个连接在一起为存储的顶级目录，其下再建立年月日目录来存储
//'如果没有设置mServerPath，
// '则对mShowPath 进行httpcontext.current.server.path得到绝对目录,如果不存在则创建此目录
private string mSavePath;// '存储目录
private int mAccessMaxLength;//'允许的文件最大长度(单位：KB）例如：200
private string mAccessFileType; // '允许的图片类型:例如："image/pjeg|image/gif"
private string mFileTitle;
#region " 属性"
public string ServerPath
{
get
{
return mServerPath;
}
set
{
mServerPath = value;
}
}
public string ShowPath
{
get
{
return mShowPath;
}
set
{
mShowPath = value;
}
}
public string SavePath
{
get
{
return mSavePath;
}
}
public int AccessMaxLength
{
get
{
return mAccessMaxLength;
}
set
{
mAccessMaxLength = value;
}
}
public string AccessFileType
{
get
{
return mAccessFileType;
}
set
{
mAccessFileType = value;
}
}
public string FileTitle
{
get
{
return mFileTitle;
}
}
#endregion
#region " 构造函数 参数初始化"
public microUploadFile()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
public microUploadFile(string myServerPath, string myShowPath)
{
mServerPath = myServerPath;
mShowPath = myShowPath;
if (myServerPath != "" && myShowPath != "")
{
if (myServerPath.LastIndexOf("//") > 0)
{
mSavePath = myServerPath + myShowPath;
}
else
{
mSavePath = myServerPath + "//" + myShowPath;
}
}
else if (myServerPath == "" && myShowPath != "")
{
mSavePath = HttpContext.Current.Server.MapPath(myShowPath);
}
else
{
throw new Exception("显示路径：myShowPath 不可为空");
}
}
public microUploadFile(string myServerPath, string myShowPath, int myAccessMaxLength, string myAccessFileTypes)
{
mServerPath = myServerPath;
mShowPath = myShowPath;
if (myServerPath != "" && myShowPath != "")
{
if (myServerPath.LastIndexOf("//") > 0)
{
mSavePath = myServerPath + myShowPath;
}
else
{
mSavePath = myServerPath + "//" + myShowPath;
}
}
else if (myServerPath == "" && myShowPath != "")
{
mSavePath = HttpContext.Current.Server.MapPath(myShowPath);
}
else
{
throw new Exception("显示路径：myShowPath 不可为空");
}
mAccessMaxLength = myAccessMaxLength;
mAccessFileType = myAccessFileTypes;
}
#endregion
//生成并返回相对于存储文件夹的 /年/月/日/ 路径
public string RelativePath()
{
if (!System.IO.Directory.Exists(mSavePath))
{
System.IO.Directory.CreateDirectory(mSavePath);
}
string strTemp;
strTemp = "/" + DateTime.Now.Year.ToString() + "/" + DateTime.Now.Month.ToString() + "/" + DateTime.Now.ToShortDateString() + "/";
//HttpContext.Current.Response.Write(mSavePath + strTemp);
if (!System.IO.Directory.Exists(mSavePath + strTemp))
{
System.IO.Directory.CreateDirectory(mSavePath + strTemp);
}
return strTemp;
}
//判断上传文件的格式是否为允许的图片格式
//如果没有限制图片格式，则返回true
public bool ValideFileType(FileUpload UpImage)
{
if (mAccessFileType != "" && mAccessFileType != null)
{
if (mAccessFileType.IndexOf(UpImage.PostedFile.ContentType) >= 0)
{
return true;
}
else
{
return false;
}
}
else
{
return true;
}
}
//httpostfile file filetype
public bool ValideFileType(HttpPostedFile UpImage)
{
if (mAccessFileType != "" && mAccessFileType != null)
{
if (mAccessFileType.IndexOf(UpImage.ContentType) >= 0)
{
return true;
}
else
{
return false;
}
}
else
{
return true;
}
}
//判断上传文件的大小:大于0小于等于maxLength为true
//如果没有限制大小，则返回 true
public bool ValidateFileLength(FileUpload UpImage)
{
if (mAccessMaxLength > 0)
{
if (UpImage.PostedFile.ContentLength <= mAccessMaxLength * 1024)
{
return true;
}
else
{
return false;
}
}
else
{
return true;
}
}
//check httppostfile length
public bool ValidateFileLength(HttpPostedFile UpImage)
{
if (mAccessMaxLength > 0)
{
if (UpImage.ContentLength <= mAccessMaxLength * 1024)
{
return true;
}
else
{
return false;
}
}
else
{
return true;
}
}
//'根据上传文件得到文件的类型扩展名：.gif .jpg等
public string getExtensisionName(FileUpload UpImage)
{
switch (UpImage.PostedFile.ContentType)
{
case "image/pjpeg":
return ".jpg";
case "image/gif":
return ".gif";
case "image/png":
return ".png";
case "image/bmp":
return ".bmp";
default:
throw new Exception("错误提示：无法识别文件的类型");
}
}
//check httppostedfile's type :gif,jpg
public string getExtensisionName(HttpPostedFile UpImage)
{
switch (UpImage.ContentType)
{
case "image/pjpeg":
return ".jpg";
case "image/gif":
return ".gif";
case "image/png":
return ".png";
case "image/bmp":
return ".bmp";
default:
throw new Exception("错误提示：无法识别文件的类型");
}
}
#region "System.Drawing.Imaging.ImageCodecInfo GetEncoderInfo(string mime)"
private System.Drawing.Imaging.ImageCodecInfo GetEncoderInfo(string mimeType)
{
System.Drawing.Imaging.ImageCodecInfo[] encoders;
encoders = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders();
for (int j = 0; j < encoders.Length; j++)
{
// ' HttpContext.Current.Response.Write("<li>" + encoders[j].MimeType.ToString());
if (encoders[j].MimeType == mimeType)
{
return encoders[j];
}
}
return null;
}
#endregion
//根据FileUpload组件得到的数据 直接存储原文件 并返回相对路径的文件名
public string Save(FileUpload UpImage)
{
bool isImage;
string myName;
if (this.ValideFileType(UpImage))
{
if (this.ValidateFileLength(UpImage))
{
mFileTitle = UpImage.PostedFile.FileName.Substring(UpImage.PostedFile.FileName.LastIndexOf("//") + 1, UpImage.PostedFile.FileName.LastIndexOf(".") - UpImage.PostedFile.FileName.LastIndexOf("//") - 1);
isImage = true;
myName = this.RelativePath() + Guid.NewGuid().ToString().Replace("-", "") + this.getExtensisionName(UpImage);
// HttpContext.Current.Response.Write(mSavePath + myName);
// HttpContext.Current.Response.End();
UpImage.PostedFile.SaveAs(mSavePath + myName);// '保存原图片
return mShowPath + myName;
}
else
{
throw new Exception("上传文件的大小不符合要求：最大" + mAccessMaxLength.ToString() + "KB");
}
}
else
{
throw new Exception("上传文件的类型不符合要求：" + mAccessFileType + "");
}
}
//save httppostedfile
public string Save(HttpPostedFile UpImage)
{
bool isImage;
string myName;
if (this.ValideFileType(UpImage))
{
if (this.ValidateFileLength(UpImage))
{
mFileTitle = UpImage.FileName.Substring(UpImage.FileName.LastIndexOf("//") + 1, UpImage.FileName.LastIndexOf(".") - UpImage.FileName.LastIndexOf("//") - 1);
isImage = true;
myName = this.RelativePath() + Guid.NewGuid().ToString().Replace("-", "") + this.getExtensisionName(UpImage);
// HttpContext.Current.Response.Write(mSavePath + myName);
// HttpContext.Current.Response.End();
UpImage.SaveAs(mSavePath + myName);// '保存原图片
return mShowPath + myName;
}
else
{
throw new Exception("上传文件的大小不符合要求：最大" + mAccessMaxLength.ToString() + "KB");
}
}
else
{
throw new Exception("上传文件的类型不符合要求：" + mAccessFileType + "");
}
}
//'根据FileUpload组件得到的数据 原图大小加上图片logo 并返回相对路径的文件名
public string Save(FileUpload UpImage, int myQuality, string LogoImageServerName)
{
bool isImage;
string myName;
if (this.ValideFileType(UpImage))
{
if (this.ValidateFileLength(UpImage))
{
mFileTitle = UpImage.PostedFile.FileName.Substring(UpImage.PostedFile.FileName.LastIndexOf("//") + 1, UpImage.PostedFile.FileName.LastIndexOf(".") - UpImage.PostedFile.FileName.LastIndexOf("//") - 1);
isImage = true;
System.Drawing.Image image;
image = System.Drawing.Image.FromStream(UpImage.PostedFile.InputStream);
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(image.Width, image.Height, System.Drawing.Imaging.PixelFormat.Format48bppRgb);
System.Drawing.Graphics gp = System.Drawing.Graphics.FromImage(bmp);
gp.Clear(System.Drawing.Color.White);
gp.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
gp.DrawImage(image, 0, 0, image.Width, image.Height);
System.Drawing.Image logo = System.Drawing.Image.FromFile(LogoImageServerName);
if (image.Width > logo.Width && image.Height > logo.Height)
{
gp.DrawImage(logo, new System.Drawing.Rectangle(0, image.Height - logo.Height, logo.Width, logo.Height), 0, 0, logo.Width, logo.Height, System.Drawing.GraphicsUnit.Pixel);
}
System.Drawing.Imaging.EncoderParameters objEncoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.Encoder objEncoder0 = System.Drawing.Imaging.Encoder.Quality;
int intQuality = myQuality;//Convet.Type(ConfigurationSettings.AppSettings("ImageQuality"), Integer)
System.Drawing.Imaging.EncoderParameter objEncoderParameter0 = new System.Drawing.Imaging.EncoderParameter(objEncoder0, intQuality);
objEncoderParameters.Param[0] = objEncoderParameter0;
string myMimeType;
switch (UpImage.PostedFile.ContentType)
{
case "image/pjpeg":
myMimeType = "image/jpeg";
break;
case "image/gif":
myMimeType = "image/gif";
break;
default:
myMimeType = "image/jpeg";
break;
}
myName = this.RelativePath() + Guid.NewGuid().ToString().Replace("-", "") + this.getExtensisionName(UpImage);
bmp.Save(mSavePath + myName, this.GetEncoderInfo(myMimeType), objEncoderParameters);
objEncoderParameters.Dispose();
objEncoderParameter0.Dispose();
GC.SuppressFinalize(objEncoderParameters);
GC.SuppressFinalize(objEncoderParameter0);
image.Dispose();
gp.Dispose();
bmp.Dispose();
GC.SuppressFinalize(image);
GC.SuppressFinalize(gp);
GC.SuppressFinalize(bmp);
return mShowPath + myName;
}
else
throw new Exception("上传文件的大小不符合要求：最大" + mAccessMaxLength.ToString() + "KB");
}
else
{
throw new Exception("上传文件的类型不符合要求：" + mAccessFileType + "");
}
}
//img add logo
public string ImgSaveLogo(string imageName, string LogoImageServerName)
{
System.Drawing.Image image;
image = System.Drawing.Image.FromFile(imageName);
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(image.Width, image.Height, System.Drawing.Imaging.PixelFormat.Format48bppRgb);
System.Drawing.Graphics gp = System.Drawing.Graphics.FromImage(bmp);
gp.Clear(System.Drawing.Color.White);
gp.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
gp.DrawImage(image, 0, 0, image.Width, image.Height);
System.Drawing.Image logo = System.Drawing.Image.FromFile(LogoImageServerName);
if (image.Width > logo.Width && image.Height > logo.Height)
{
gp.DrawImage(logo, new System.Drawing.Rectangle(0, image.Height - logo.Height, logo.Width, logo.Height), 0, 0, logo.Width, logo.Height, System.Drawing.GraphicsUnit.Pixel);
}
// System.Drawing.Imaging.EncoderParameters objEncoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
// System.Drawing.Imaging.Encoder objEncoder0 = System.Drawing.Imaging.Encoder.Quality;
// int intQuality = myQuality;//Convet.Type(ConfigurationSettings.AppSettings("ImageQuality"), Integer)
//System.Drawing.Imaging.EncoderParameter objEncoderParameter0 = new System.Drawing.Imaging.EncoderParameter(objEncoder0, intQuality);
// objEncoderParameters.Param[0] = objEncoderParameter0;
// string myMimeType = "image / jpeg";
string myName = this.RelativePath() + Guid.NewGuid().ToString().Replace("-", "") + ".jpg";
bmp.Save(mSavePath + myName, System.Drawing.Imaging.ImageFormat.Jpeg);
//objEncoderParameters.Dispose();
//objEncoderParameter0.Dispose();
// GC.SuppressFinalize(objEncoderParameters);
// GC.SuppressFinalize(objEncoderParameter0);
image.Dispose();
gp.Dispose();
bmp.Dispose();
GC.SuppressFinalize(image);
GC.SuppressFinalize(gp);
GC.SuppressFinalize(bmp);
return mShowPath + myName;
}
// save thumbail add logo
public string ImgThumbnailSaveLogo(string imageName, int ThumbnailWidth, int ThumbnailHeight, string LogoImageServerName)
{
System.Drawing.Image image;
image = System.Drawing.Image.FromFile(imageName);
int originalWidth;
int originalHeight;
int newWidth;
int newHeight;
originalWidth = image.Width;
originalHeight = image.Height;
if (originalWidth > originalHeight)
{
if (originalWidth > ThumbnailWidth)
{
newWidth = ThumbnailWidth;
}
else
{
newWidth = originalWidth;
}
newHeight = (int)((float)originalHeight / (float)originalWidth * (float)newWidth);
if (newHeight > ThumbnailHeight)
{
newHeight = ThumbnailHeight;
}
}
else
{
if (originalHeight > ThumbnailHeight)
{
newHeight = ThumbnailHeight;
}
else
{
newHeight = originalHeight;
}
newWidth = (int)((float)originalWidth / (float)originalHeight * (float)newHeight);
if (newWidth > ThumbnailWidth)
{
newWidth = ThumbnailWidth;
}
}
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(newWidth, newHeight, System.Drawing.Imaging.PixelFormat.Format48bppRgb);
System.Drawing.Graphics gp = System.Drawing.Graphics.FromImage(bmp);
gp.Clear(System.Drawing.Color.White);
gp.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
gp.DrawImage(image, 0, 0, newWidth, newHeight);
System.Drawing.Image logo = System.Drawing.Image.FromFile(LogoImageServerName);
if (newWidth > logo.Width && newHeight > logo.Height)
{
gp.DrawImage(logo, new System.Drawing.Rectangle(0, newHeight - logo.Height, logo.Width, logo.Height), 0, 0, logo.Width, logo.Height, System.Drawing.GraphicsUnit.Pixel);
}
// System.Drawing.Imaging.EncoderParameters objEncoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
// System.Drawing.Imaging.Encoder objEncoder0 = System.Drawing.Imaging.Encoder.Quality;
// int intQuality = myQuality;//Convet.Type(ConfigurationSettings.AppSettings("ImageQuality"), Integer)
//System.Drawing.Imaging.EncoderParameter objEncoderParameter0 = new System.Drawing.Imaging.EncoderParameter(objEncoder0, intQuality);
// objEncoderParameters.Param[0] = objEncoderParameter0;
// string myMimeType = "image / jpeg";
string myName = this.RelativePath() + Guid.NewGuid().ToString().Replace("-", "") + ".jpg";
bmp.Save(mSavePath + myName, System.Drawing.Imaging.ImageFormat.Jpeg);
//objEncoderParameters.Dispose();
//objEncoderParameter0.Dispose();
// GC.SuppressFinalize(objEncoderParameters);
// GC.SuppressFinalize(objEncoderParameter0);
image.Dispose();
gp.Dispose();
bmp.Dispose();
GC.SuppressFinalize(image);
GC.SuppressFinalize(gp);
GC.SuppressFinalize(bmp);
return mShowPath + myName;
}
//save httpuploadfile add logo
public string Save(HttpPostedFile UpImage, int myQuality, string LogoImageServerName)
{
bool isImage;
string myName;
if (this.ValideFileType(UpImage))
{
if (this.ValidateFileLength(UpImage))
{
mFileTitle = UpImage.FileName.Substring(UpImage.FileName.LastIndexOf("//") + 1, UpImage.FileName.LastIndexOf(".") - UpImage.FileName.LastIndexOf("//") - 1);
isImage = true;
System.Drawing.Image image;
image = System.Drawing.Image.FromStream(UpImage.InputStream);
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(image.Width, image.Height, System.Drawing.Imaging.PixelFormat.Format48bppRgb);
System.Drawing.Graphics gp = System.Drawing.Graphics.FromImage(bmp);
gp.Clear(System.Drawing.Color.White);
gp.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
gp.DrawImage(image, 0, 0, image.Width, image.Height);
System.Drawing.Image logo = System.Drawing.Image.FromFile(LogoImageServerName);
if (image.Width > logo.Width && image.Height > logo.Height)
{
// gp.DrawImage(logo, new System.Drawing.Point(0, image.Height - logo.Height));
gp.DrawImage(logo, new System.Drawing.Rectangle(0, image.Height - logo.Height, logo.Width, logo.Height), 0, 0, logo.Width, logo.Height, System.Drawing.GraphicsUnit.Pixel);
}
System.Drawing.Imaging.EncoderParameters objEncoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.Encoder objEncoder0 = System.Drawing.Imaging.Encoder.Quality;
int intQuality = myQuality;//Convet.Type(ConfigurationSettings.AppSettings("ImageQuality"), Integer)
System.Drawing.Imaging.EncoderParameter objEncoderParameter0 = new System.Drawing.Imaging.EncoderParameter(objEncoder0, intQuality);
objEncoderParameters.Param[0] = objEncoderParameter0;
string myMimeType;
switch (UpImage.ContentType)
{
case "image/pjpeg":
myMimeType = "image/jpeg";
break;
case "image/gif":
myMimeType = "image/gif";
break;
default:
myMimeType = "image/jpeg";
break;
}
myName = this.RelativePath() + Guid.NewGuid().ToString().Replace("-", "") + this.getExtensisionName(UpImage);
bmp.Save(mSavePath + myName, this.GetEncoderInfo(myMimeType), objEncoderParameters);
objEncoderParameters.Dispose();
objEncoderParameter0.Dispose();
GC.SuppressFinalize(objEncoderParameters);
GC.SuppressFinalize(objEncoderParameter0);
image.Dispose();
gp.Dispose();
bmp.Dispose();
GC.SuppressFinalize(image);
GC.SuppressFinalize(gp);
GC.SuppressFinalize(bmp);
return mShowPath + myName;
}
else
throw new Exception("上传文件的大小不符合要求：最大" + mAccessMaxLength.ToString() + "KB");
}
else
{
throw new Exception("上传文件的类型不符合要求：" + mAccessFileType + "");
}
}
////在缩略的图片上生成一个给定的LOGO:此LOGO为一个给定的图片
//根据FileUpload 生成缩略图
public string SaveThumbnailImage(FileUpload UpImage, int ThumbnailWidth, int ThumbnailHeight, int Quality, string LogoImageServerName)
{
System.Drawing.Image image;
image = System.Drawing.Image.FromStream(UpImage.PostedFile.InputStream);
int originalWidth;
int originalHeight;
int newWidth;
int newHeight;
originalWidth = image.Width;
originalHeight = image.Height;
if (originalWidth > originalHeight)
{
if (originalWidth > ThumbnailWidth)
{
newWidth = ThumbnailWidth;
}
else
{
newWidth = originalWidth;
}
newHeight = (int)((float)originalHeight / (float)originalWidth * (float)newWidth);
if (newHeight > ThumbnailHeight)
{
newHeight = ThumbnailHeight;
}
}
else
{
if (originalHeight > ThumbnailHeight)
{
newHeight = ThumbnailHeight;
}
else
{
newHeight = originalHeight;
}
newWidth = (int)((float)originalWidth / (float)originalHeight * (float)newHeight);
if (newWidth > ThumbnailWidth)
{
newWidth = ThumbnailWidth;
}
}
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(newWidth, newHeight, System.Drawing.Imaging.PixelFormat.Format48bppRgb);
System.Drawing.Graphics gp = System.Drawing.Graphics.FromImage(bmp);
gp.Clear(System.Drawing.Color.White);
gp.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
gp.DrawImage(image, 0, 0, newWidth, newHeight);
System.Drawing.Image logo = System.Drawing.Image.FromFile(LogoImageServerName);
if (newWidth > logo.Width && newHeight > logo.Height)
{
gp.DrawImage(logo, new System.Drawing.Rectangle(0, newHeight - logo.Height, logo.Width, logo.Height), 0, 0, logo.Width, logo.Height, System.Drawing.GraphicsUnit.Pixel);
}
System.Drawing.Imaging.EncoderParameters objEncoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.Encoder objEncoder0 = System.Drawing.Imaging.Encoder.Quality;
int intQuality = Quality;
System.Drawing.Imaging.EncoderParameter objEncoderParameter0 = new System.Drawing.Imaging.EncoderParameter(objEncoder0, intQuality);
objEncoderParameters.Param[0] = objEncoderParameter0;
string myMimeType;
switch (UpImage.PostedFile.ContentType)
{
case "image/pjpeg":
myMimeType = "image/jpeg";
break;
case "image/gif":
myMimeType = "image/gif";
break;
default:
myMimeType = "image/jpeg";
break;
}
string myName = this.RelativePath() + Guid.NewGuid().ToString().Replace("-", "") + ThumbnailWidth.ToString() + ThumbnailHeight.ToString() + this.getExtensisionName(UpImage);
bmp.Save(mSavePath + myName, GetEncoderInfo(myMimeType), objEncoderParameters);
objEncoderParameters.Dispose();
objEncoderParameter0.Dispose();
GC.SuppressFinalize(objEncoderParameters);
GC.SuppressFinalize(objEncoderParameter0);
image.Dispose();
gp.Dispose();
bmp.Dispose();
GC.SuppressFinalize(image);
GC.SuppressFinalize(gp);
GC.SuppressFinalize(bmp);
return mShowPath + myName;
}
//thumbnail image httppostedimage add logo
public string SaveThumbnailImage(HttpPostedFile UpImage, int ThumbnailWidth, int ThumbnailHeight, int Quality, string LogoImageServerName)
{
System.Drawing.Image image;
image = System.Drawing.Image.FromStream(UpImage.InputStream);
int originalWidth;
int originalHeight;
int newWidth;
int newHeight;
originalWidth = image.Width;
originalHeight = image.Height;
if (originalWidth > originalHeight)
{
if (originalWidth > ThumbnailWidth)
{
newWidth = ThumbnailWidth;
}
else
{
newWidth = originalWidth;
}
newHeight = (int)((float)originalHeight / (float)originalWidth * (float)newWidth);
if (newHeight > ThumbnailHeight)
{
newHeight = ThumbnailHeight;
}
}
else
{
if (originalHeight > ThumbnailHeight)
{
newHeight = ThumbnailHeight;
}
else
{
newHeight = originalHeight;
}
newWidth = (int)((float)originalWidth / (float)originalHeight * (float)newHeight);
if (newWidth > ThumbnailWidth)
{
newWidth = ThumbnailWidth;
}
}
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(newWidth, newHeight, System.Drawing.Imaging.PixelFormat.Format48bppRgb);
System.Drawing.Graphics gp = System.Drawing.Graphics.FromImage(bmp);
gp.Clear(System.Drawing.Color.White);
gp.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
gp.DrawImage(image, 0, 0, newWidth, newHeight);
System.Drawing.Image logo = System.Drawing.Image.FromFile(LogoImageServerName);
if (newWidth > logo.Width && newHeight > logo.Height)
{
//gp.DrawImage(logo, new System.Drawing.Point(0, newHeight - logo.Height));
// System.Drawing.Image image = System.Drawing.Image.FromFile(Server.MapPath(filename1));//原图
//System.Drawing.Image newimage = System.Drawing.Image.FromFile(Server.MapPath("3.png"));//此对象为被加的水印图
//Graphics g = Graphics.FromImage(image);
gp.DrawImage(logo, new System.Drawing.Rectangle(0, newHeight - logo.Height, logo.Width, logo.Height), 0, 0, logo.Width, logo.Height, System.Drawing.GraphicsUnit.Pixel);
}
System.Drawing.Imaging.EncoderParameters objEncoderParameters = new System.Drawing.Imaging.EncoderParameters(1);
System.Drawing.Imaging.Encoder objEncoder0 = System.Drawing.Imaging.Encoder.Quality;
int intQuality = Quality;
System.Drawing.Imaging.EncoderParameter objEncoderParameter0 = new System.Drawing.Imaging.EncoderParameter(objEncoder0, intQuality);
objEncoderParameters.Param[0] = objEncoderParameter0;
string myMimeType;
switch (UpImage.ContentType)
{
case "image/pjpeg":
myMimeType = "image/jpeg";
break;
case "image/gif":
myMimeType = "image/gif";
break;
default:
myMimeType = "image/jpeg";
break;
}
string myName = this.RelativePath() + Guid.NewGuid().ToString().Replace("-", "") + ThumbnailWidth.ToString() + ThumbnailHeight.ToString() + this.getExtensisionName(UpImage);
bmp.Save(mSavePath + myName, GetEncoderInfo(myMimeType), objEncoderParameters);
objEncoderParameters.Dispose();
objEncoderParameter0.Dispose();
GC.SuppressFinalize(objEncoderParameters);
GC.SuppressFinalize(objEncoderParameter0);
image.Dispose();
gp.Dispose();
bmp.Dispose();
GC.SuppressFinalize(image);
GC.SuppressFinalize(gp);
GC.SuppressFinalize(bmp);
return mShowPath + myName;
}
public void DelPhoto(string path)
{
if (System.IO.File.Exists(System.Web.HttpContext.Current.Request.MapPath(path)))
{
System.IO.File.Delete(System.Web.HttpContext.Current.Request.MapPath(path));
}
}
//create page ///path是物理路径
public void creatPage(string Url, string WebPage)
{
try
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(Url);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream resStream = response.GetResponseStream();
StreamReader sr = new StreamReader(resStream, System.Text.Encoding.UTF8);
string html = sr.ReadToEnd();
System.Text.StringBuilder sb = new System.Text.StringBuilder(html);
resStream.Close();
sr.Close();
System.IO.StreamWriter sw;
sw = new System.IO.StreamWriter(WebPage, false, System.Text.Encoding.UTF8);
sw.WriteLine(sb.ToString());
sw.Close();
}
catch (Exception message)
{
throw message;
}
}
public float getImageBL(FileUpload Fu)
{
//判断图片的长和宽
int FileLength = Fu.PostedFile.ContentLength;//取得数据的长度
Byte[] FileByteArray = new byte[FileLength];//图象文件临时存储到Byte数组里
System.IO.Stream StreamObject = Fu.PostedFile.InputStream;//建立数据流对象
StreamObject.Read(FileByteArray, 0, FileLength);
//建立图片对象
System.Drawing.Image MyImage = System.Drawing.Image.FromStream(StreamObject);
return (float)MyImage.Width / (float)MyImage.Height;
}
}
}