[C#] 纯文本查看 复制代码
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Web;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
using System.Collections;
using System.Net;
using System.Text.RegularExpressions;
using System.Configuration;
//调用
//UploadImage ui = new UploadImage();
///***可选参数***/
//ui.SetWordWater = "哈哈";//文字水印
//// ui.SetPicWater = Server.MapPath("2.png");//图片水印(图片和文字都赋值图片有效)
//ui.SetPositionWater = 4;//水印图片的位置 0居中、1左上角、2右上角、3左下角、4右下角
//ui.SetSmallImgHeight = "110,40,20";//设置缩略图可以多个
//ui.SetSmallImgWidth = "100,40,20";
////保存图片生成缩略图
//var reponseMessage = ui.FileSaveAs(Request.Files[0], Server.MapPath("~/file/temp"));
////裁剪图片
//var reponseMessage2 = ui.FileCutSaveAs(Request.Files[0], Server.MapPath("~/file/temp2"), 400, 300, UploadImage.CutMode.CutNo);
///***返回信息***/
//var isError = reponseMessage.IsError;//是否异常
//var webPath = reponseMessage.WebPath;//web路径
//var filePath = reponseMessage.filePath;//物理路径
//var message = reponseMessage.Message;//错误信息
//var directory = reponseMessage.Directory;//目录
//var smallPath1 = reponseMessage.SmallPath(0);//缩略图路径1
//var smallPath2 = reponseMessage.SmallPath(1);//缩略图路径2
//var smallPath3 = reponseMessage.SmallPath(2);//缩略图路径3
/// <summary>
/// ** 描述：图片上传类、支持水印、缩略图
/// ** 创始时间：2015-5-28
/// ** 修改时间：-
/// ** 修改人：sunkaixuan
/// ** 使用说明：http://www.cnblogs.com/sunkaixuan/p/4536626.html
/// </summary>
public class UploadImage
{
#region 属性
/// <summary>
/// 允许图片格式
/// </summary>
public string SetAllowFormat { get; set; }
/// <summary>
/// 允许上传图片大小
/// </summary>
public double SetAllowSize { get; set; }
/// <summary>
/// 文字水印字符
/// </summary>
public string SetWordWater { get; set; }
/// <summary>
/// 图片水印
/// </summary>
public string SetPicWater { get; set; }
/// <summary>
/// 水印图片的位置 0居中、1左上角、2右上角、3左下角、4右下角
/// </summary>
public int SetPositionWater { get; set; }
/// <summary>
/// 缩略图宽度多个逗号格开（例如:200,100）
/// </summary>
public string SetSmallImgWidth { get; set; }
/// <summary>
/// 缩略图高度多个逗号格开（例如:200,100）
/// </summary>
public string SetSmallImgHeight { get; set; }
/// <summary>
/// 是否限制最大宽度，默认为true
/// </summary>
public bool SetLimitWidth { get; set; }
/// <summary>
/// 最大宽度尺寸，默认为600
/// </summary>
public int SetMaxWidth { get; set; }
/// <summary>
/// 是否剪裁图片，默认true
/// </summary>
public bool SetCutImage { get; set; }
/// <summary>
/// 限制图片最小宽度，0表示不限制
/// </summary>
public int SetMinWidth { get; set; }
#endregion
public UploadImage()
{
SetAllowFormat = ".jpeg|.jpg|.bmp|.gif|.png"; //允许图片格式
SetAllowSize = 1; //允许上传图片大小,默认为1MB
SetPositionWater = 4;
SetCutImage = true;
}
#region main method
/// <summary>
/// 裁剪图片
/// </summary>
/// <param name="PostedFile">HttpPostedFile控件</param>
/// <param name="SavePath">保存路径【sys.config配置路径】</param>
/// <param name="oImgWidth">图片宽度</param>
/// <param name="oImgHeight">图片高度</param>
/// <param name="cMode">剪切类型</param>
/// <param name="ext">返回格式</param>
/// <returns>返回上传信息</returns>
public ResponseMessage FileCutSaveAs(System.Web.HttpPostedFile PostedFile, string SavePath, int oImgWidth, int oImgHeight, CutMode cMode)
{
ResponseMessage rm = new ResponseMessage();
try
{
//获取上传文件的扩展名
string sEx = System.IO.Path.GetExtension(PostedFile.FileName);
if (!CheckValidExt(SetAllowFormat, sEx))
{
TryError(rm, 2);
return rm;
}
//获取上传文件的大小
double PostFileSize = PostedFile.ContentLength / 1024.0 / 1024.0;
if (PostFileSize > SetAllowSize)
{
TryError(rm, 3);
return rm; //超过文件上传大小
}
if (!System.IO.Directory.Exists(SavePath))
{
System.IO.Directory.CreateDirectory(SavePath);
}
//重命名名称
string NewfileName = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString("000");
string fName = "s" + NewfileName + sEx;
string fullPath = Path.Combine(SavePath, fName);
PostedFile.SaveAs(fullPath);
//重命名名称
string sNewfileName = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString("000");
string sFName = sNewfileName + sEx;
rm.IsError = false;
rm.FileName = sFName;
string sFullPath = Path.Combine(SavePath, sFName);
rm.filePath = sFullPath;
rm.WebPath = "/" + sFullPath.Replace(HttpContext.Current.Server.MapPath("~/"), "").Replace("\\", "/");
CreateSmallPhoto(fullPath, oImgWidth, oImgHeight, sFullPath, SetPicWater, SetWordWater, cMode);
if (File.Exists(fullPath))
{
File.Delete(fullPath);
}
//压缩
if (PostFileSize > 100)
{
CompressPhoto(sFullPath, 100);
}
}
catch (Exception ex)
{
TryError(rm, ex.Message);
}
return rm;
}
/// <summary>
/// 通用图片上传类
/// </summary>
/// <param name="PostedFile">HttpPostedFile控件</param>
/// <param name="SavePath">保存路径【sys.config配置路径】</param>
/// <param name="finame">返回文件名</param>
/// <param name="fisize">返回文件大小</param>
/// <returns>返回上传信息</returns>
public ResponseMessage FileSaveAs(System.Web.HttpPostedFile PostedFile, string SavePath)
{
ResponseMessage rm = new ResponseMessage();
try
{
if (string.IsNullOrEmpty(PostedFile.FileName))
{
TryError(rm, 4);
return rm;
}
Random rd = new Random();
int rdInt = rd.Next(1000, 9999);
//重命名名称
string NewfileName = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString() + DateTime.Now.Second.ToString() + DateTime.Now.Millisecond.ToString() + rdInt;
//获取上传文件的扩展名
string sEx = System.IO.Path.GetExtension(PostedFile.FileName);
if (!CheckValidExt(SetAllowFormat, sEx))
{
TryError(rm, 2);
return rm;
}
//获取上传文件的大小
double PostFileSize = PostedFile.ContentLength / 1024.0 / 1024.0;
if (PostFileSize > SetAllowSize)
{
TryError(rm, 3);
return rm;
}
if (!System.IO.Directory.Exists(SavePath))
{
System.IO.Directory.CreateDirectory(SavePath);
}
rm.FileName = NewfileName + sEx;
string fullPath = SavePath.Trim('\\') + "\\" + rm.FileName;
rm.WebPath = "/" + fullPath.Replace(HttpContext.Current.Server.MapPath("~/"), "").Replace("\\", "/");
rm.filePath = fullPath;
rm.Size = PostFileSize;
PostedFile.SaveAs(fullPath);
System.Drawing.Bitmap bmp = new Bitmap(fullPath);
int realWidth = bmp.Width;
int realHeight = bmp.Height;
bmp.Dispose();
#region 检测图片宽度限制
if (SetMinWidth > 0)
{
if (realWidth < SetMinWidth)
{
TryError(rm, 7);
return rm;
}
}
#endregion
#region 监测图片宽度是否超过600，超过的话，自动压缩到600
if (SetLimitWidth && realWidth > SetMaxWidth)
{
int mWidth = SetMaxWidth;
int mHeight = mWidth * realHeight / realWidth;
string tempFile = SavePath + Guid.NewGuid().ToString() + sEx;
File.Move(fullPath, tempFile);
CreateSmallPhoto(tempFile, mWidth, mHeight, fullPath, "", "");
File.Delete(tempFile);
}
#endregion
#region 压缩图片存储尺寸
if (sEx.ToLower() != ".gif")
{
CompressPhoto(fullPath, 100);
}
#endregion
//生成缩略图片高宽
if (string.IsNullOrEmpty(SetSmallImgWidth))
{
rm.Message = "上传成功,无缩略图";
return rm;
}
string[] oWidthArray = SetSmallImgWidth.Split(',');
string[] oHeightArray = SetSmallImgHeight.Split(',');
if (oWidthArray.Length != oHeightArray.Length)
{
TryError(rm, 6);
return rm;
}
for (int i = 0; i < oWidthArray.Length; i++)
{
if (Convert.ToInt32(oWidthArray) <= 0 || Convert.ToInt32(oHeightArray) <= 0)
continue;
string sImg = SavePath.TrimEnd('\\') + '\\' + NewfileName + "_" + i.ToString() + sEx;
//判断图片高宽是否大于生成高宽。否则用原图
if (realWidth > Convert.ToInt32(oWidthArray))
{
if (SetCutImage)
CreateSmallPhoto(fullPath, Convert.ToInt32(oWidthArray), Convert.ToInt32(oHeightArray), sImg, "", "");
else
CreateSmallPhoto(fullPath, Convert.ToInt32(oWidthArray), Convert.ToInt32(oHeightArray), sImg, "", "", CutMode.CutNo);
}
else
{
if (SetCutImage)
CreateSmallPhoto(fullPath, realWidth, realHeight, sImg, "", "");
else
CreateSmallPhoto(fullPath, realWidth, realHeight, sImg, "", "", CutMode.CutNo);
}
}
#region 给大图添加水印
if (!string.IsNullOrEmpty(SetPicWater))
AttachPng(SetPicWater, fullPath);
else if (!string.IsNullOrEmpty(SetWordWater))
AttachText(SetWordWater, fullPath);
#endregion
}
catch (Exception ex)
{
TryError(rm, ex.Message);
}
return rm;
}
#region 验证格式
/// <summary>
/// 验证格式
/// </summary>
/// <param name="allType">所有格式</param>
/// <param name="chkType">被检查的格式</param>
/// <returns>bool</returns>
public bool CheckValidExt(string allType, string chkType)
{
bool flag = false;
string[] sArray = allType.Split('|');
foreach (string temp in sArray)
{
if (temp.ToLower() == chkType.ToLower())
{
flag = true;
break;
}
}
return flag;
}
#endregion
//更多代码下载附件
}
图片上传.zip
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