Web关于图片上传，缩略图及加水印，还有一些常用的方法

/// <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 = Utils.GetFileExt(fileName); //文件扩展名，不含“.”
if (!IsImage(fileExt))
{
return false;
}
string newFileDir = Utils.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 = Utils.GetMapPath(fileName);
string toFileFullPath = Utils.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 = Utils.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 = Utils.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 = Utils.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 "{\"status\": 0, \"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 "{\"status\": 0, \"msg\": \"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
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) && (this.siteConfig.imgmaxheight > 0 || this.siteConfig.imgmaxwidth > 0))
{
Thumbnail.MakeThumbnailImage(fullUpLoadPath + newFileName, fullUpLoadPath + newFileName,
this.siteConfig.imgmaxwidth, this.siteConfig.imgmaxheight);
}
//如果是图片，检查是否需要生成缩略图，是则生成
if (IsImage(fileExt) && isThumbnail && this.siteConfig.thumbnailwidth > 0 && this.siteConfig.thumbnailheight > 0)
{
Thumbnail.MakeThumbnailImage(fullUpLoadPath + newFileName, fullUpLoadPath + newThumbnailFileName,
this.siteConfig.thumbnailwidth, this.siteConfig.thumbnailheight, "Cut");
}
else
{
newThumbnailPath = newFilePath; //不生成缩略图则返回原图
}
//如果是图片，检查是否需要打水印
if (IsWaterMark(fileExt) && isWater)
{
switch (this.siteConfig.watermarktype)
{
case 1:
WaterMark.AddImageSignText(newFilePath, newFilePath,
this.siteConfig.watermarktext, this.siteConfig.watermarkposition,
this.siteConfig.watermarkimgquality, this.siteConfig.watermarkfont, this.siteConfig.watermarkfontsize);
break;
case 2:
WaterMark.AddImageSignPic(newFilePath, newFilePath,
this.siteConfig.watermarkpic, this.siteConfig.watermarkposition,
this.siteConfig.watermarkimgquality, this.siteConfig.watermarktransparency);
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 + "\"}";
}
catch
{
return "{\"status\": 0, \"msg\": \"上传过程中发生意外错误！\"}";
}
}

/// <summary>
/// 保存远程文件到本地
/// </summary>
/// <param name="fileUri">URI地址</param>
/// <returns>上传后的路径</returns>
public string remoteSaveAs(string fileUri)
{
WebClient client = new WebClient();
string fileExt = string.Empty; //文件扩展名，不含“.”
if (fileUri.LastIndexOf(".") == -1)
{
fileExt = "gif";
}
else
{
fileExt = Utils.GetFileExt(fileUri);
}
string newFileName = Utils.GetRamCode() + "." + fileExt; //随机生成新的文件名
string upLoadPath = GetUpLoadPath(); //上传目录相对路径
string fullUpLoadPath = Utils.GetMapPath(upLoadPath); //上传目录的物理路径
string newFilePath = upLoadPath + newFileName; //上传后的路径
//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);
}

try
{
client.DownloadFile(fileUri, fullUpLoadPath + newFileName);
//如果是图片，检查是否需要打水印
if (IsWaterMark(fileExt))
{
switch (this.siteConfig.watermarktype)
{
case 1:
WaterMark.AddImageSignText(newFilePath, newFilePath,
this.siteConfig.watermarktext, this.siteConfig.watermarkposition,
this.siteConfig.watermarkimgquality, this.siteConfig.watermarkfont, this.siteConfig.watermarkfontsize);
break;
case 2:
WaterMark.AddImageSignPic(newFilePath, newFilePath,
this.siteConfig.watermarkpic, this.siteConfig.watermarkposition,
this.siteConfig.watermarkimgquality, this.siteConfig.watermarktransparency);
break;
}
}
}
catch
{
return string.Empty;
}
client.Dispose();
return newFilePath;
}

#region 私有方法
/// <summary>
/// 返回上传目录相对路径
/// </summary>
/// <param name="fileName">上传文件名</param>
private string GetUpLoadPath()
{
string path = siteConfig.webpath + siteConfig.filepath + "/"; //站点目录+上传目录
switch (this.siteConfig.filesave)
{
case 1: //按年月日每天一个文件夹
path += DateTime.Now.ToString("yyyyMMdd");
break;
default: //按年月/日存入不同的文件夹
path += DateTime.Now.ToString("yyyyMM") + "/" + DateTime.Now.ToString("dd");
break;
}
return path + "/";
}

/// <summary>
/// 是否需要打水印
/// </summary>
/// <param name="_fileExt">文件扩展名，不含“.”</param>
private bool IsWaterMark(string _fileExt)
{
//判断是否开启水印
if (this.siteConfig.watermarktype > 0)
{
//判断是否可以打水印的图片类型
ArrayList al = new ArrayList();
al.Add("bmp");
al.Add("jpeg");
al.Add("jpg");
al.Add("png");
if (al.Contains(_fileExt.ToLower()))
{
return true;
}
}
return false;
}

/// <summary>
/// 是否为图片文件
/// </summary>
/// <param name="_fileExt">文件扩展名，不含“.”</param>
private bool IsImage(string _fileExt)
{
ArrayList al = new ArrayList();
al.Add("bmp");
al.Add("jpeg");
al.Add("jpg");
al.Add("gif");
al.Add("png");
if (al.Contains(_fileExt.ToLower()))
{
return true;
}
return false;
}

/// <summary>
/// 检查是否为合法的上传文件
/// </summary>
private bool CheckFileExt(string _fileExt)
{
//检查危险文件
string[] excExt = { "asp", "aspx", "ashx", "asa", "asmx", "asax", "php", "jsp", "htm", "html" };
for (int i = 0; i < excExt.Length; i++)
{
if (excExt[i].ToLower() == _fileExt.ToLower())
{
return false;
}
}
//检查合法文件
string[] allowExt = (this.siteConfig.fileextension + "," + this.siteConfig.videoextension).Split(',');
for (int i = 0; i < allowExt.Length; i++)
{
if (allowExt[i].ToLower() == _fileExt.ToLower())
{
return true;
}
}
return false;
}

/// <summary>
/// 检查文件大小是否合法
/// </summary>
/// <param name="_fileExt">文件扩展名，不含“.”</param>
/// <param name="_fileSize">文件大小(B)</param>
private bool CheckFileSize(string _fileExt, int _fileSize)
{
//将视频扩展名转换成ArrayList
ArrayList lsVideoExt = new ArrayList(this.siteConfig.videoextension.ToLower().Split(','));
//判断是否为图片文件
if (IsImage(_fileExt))
{
if (this.siteConfig.imgsize > 0 && _fileSize > this.siteConfig.imgsize * 1024)
{
return false;
}
}
else if (lsVideoExt.Contains(_fileExt.ToLower()))
{
if (this.siteConfig.videosize > 0 && _fileSize > this.siteConfig.videosize * 1024)
{
return false;
}
}
else
{
if (this.siteConfig.attachsize > 0 && _fileSize > this.siteConfig.attachsize * 1024)
{
return false;
}
}
return true;
}
#endregion

public class Utils
{
#region 系统版本
/// <summary>
/// 版本信息类
/// </summary>
public class VersionInfo
{
public int FileMajorPart
{
get { return 4; }
}
public int FileMinorPart
{
get { return 0; }
}
public int FileBuildPart
{
get { return 0; }
}
public string ProductName
{
get { return "DTcms"; }
}
public int ProductType
{
get { return 1; }
}
}
public static string GetVersion()
{
return DTKeys.ASSEMBLY_VERSION;
}
#endregion

#region MD5加密
public static string MD5(string pwd)
{
MD5 md5 = new MD5CryptoServiceProvider();
byte[] data = System.Text.Encoding.Default.GetBytes(pwd);
byte[] md5data = md5.ComputeHash(data);
md5.Clear();
string str = "";
for (int i = 0; i < md5data.Length; i++)
{
str += md5data[i].ToString("x").PadLeft(2, '0');

}
return str;
}
#endregion

#region 对象转换处理
/// <summary>
/// 判断对象是否为Int32类型的数字
/// </summary>
/// <param name="Expression"></param>
/// <returns></returns>
public static bool IsNumeric(object expression)
{
if (expression != null)
return IsNumeric(expression.ToString());

return false;

}

/// <summary>
/// 判断对象是否为Int32类型的数字
/// </summary>
/// <param name="Expression"></param>
/// <returns></returns>
public static bool IsNumeric(string expression)
{
if (expression != null)
{
string str = expression;
if (str.Length > 0 && str.Length <= 11 && Regex.IsMatch(str, @"^[-]?[0-9]*[.]?[0-9]*$"))
{
if ((str.Length < 10) || (str.Length == 10 && str[0] == '1') || (str.Length == 11 && str[0] == '-' && str[1] == '1'))
return true;
}
}
return false;
}
/// <summary>
/// 截取字符串长度，超出部分使用后缀suffix代替，比如abcdevfddd取前3位，后面使用...代替
/// </summary>
/// <param name="orginStr"></param>
/// <param name="length"></param>
/// <param name="suffix"></param>
/// <returns></returns>
public static string SubStrAddSuffix(string orginStr, int length, string suffix)
{
string ret = orginStr;
if (orginStr.Length > length)
{
ret = orginStr.Substring(0, length) + suffix;
}
return ret;
}
/// <summary>
/// 是否为Double类型
/// </summary>
/// <param name="expression"></param>
/// <returns></returns>
public static bool IsDouble(object expression)
{
if (expression != null)
return Regex.IsMatch(expression.ToString(), @"^([0-9])[0-9]*(\.\w*)?$");

return false;
}

/// <summary>
/// 检测是否符合email格式
/// </summary>
/// <param name="strEmail">要判断的email字符串</param>
/// <returns>判断结果</returns>
public static bool IsValidEmail(string strEmail)
{
return Regex.IsMatch(strEmail, @"^[\w\.]+([-]\w+)*@[A-Za-z0-9-_]+[\.][A-Za-z0-9-_]");
}
public static bool IsValidDoEmail(string strEmail)
{
return Regex.IsMatch(strEmail, @"^@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
}

/// <summary>
/// 检测是否是正确的Url
/// </summary>
/// <param name="strUrl">要验证的Url</param>
/// <returns>判断结果</returns>
public static bool IsURL(string strUrl)
{
return Regex.IsMatch(strUrl, @"^(http|https)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&%\$\-]+)*@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{1,10}))(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\?\'\\\+&%\$#\=~_\-]+))*$");
}

/// <summary>
/// 将字符串转换为数组
/// </summary>
/// <param name="str">字符串</param>
/// <returns>字符串数组</returns>
public static string[] GetStrArray(string str)
{
return str.Split(new char[',']);
}

/// <summary>
/// 将数组转换为字符串
/// </summary>
/// <param name="list">List</param>
/// <param name="speater">分隔符</param>
/// <returns>String</returns>
public static string GetArrayStr(List<string> list, string speater)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < list.Count; i++)
{
if (i == list.Count - 1)
{
sb.Append(list[i]);
}
else
{
sb.Append(list[i]);
sb.Append(speater);
}
}
return sb.ToString();
}

/// <summary>
/// object型转换为bool型
/// </summary>
/// <param name="strValue">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的bool类型结果</returns>
public static bool StrToBool(object expression, bool defValue)
{
if (expression != null)
return StrToBool(expression, defValue);

return defValue;
}

/// <summary>
/// string型转换为bool型
/// </summary>
/// <param name="strValue">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的bool类型结果</returns>
public static bool StrToBool(string expression, bool defValue)
{
if (expression != null)
{
if (string.Compare(expression, "true", true) == 0)
return true;
else if (string.Compare(expression, "false", true) == 0)
return false;
}
return defValue;
}

/// <summary>
/// 将对象转换为Int32类型
/// </summary>
/// <param name="expression">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的int类型结果</returns>
public static int ObjToInt(object expression, int defValue)
{
if (expression != null)
return StrToInt(expression.ToString(), defValue);

return defValue;
}

/// <summary>
/// 将字符串转换为Int32类型
/// </summary>
/// <param name="expression">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的int类型结果</returns>
public static int StrToInt(string expression, int defValue)
{
if (string.IsNullOrEmpty(expression) || expression.Trim().Length >= 11 || !Regex.IsMatch(expression.Trim(), @"^([-]|[0-9])[0-9]*(\.\w*)?$"))
return defValue;

int rv;
if (Int32.TryParse(expression, out rv))
return rv;

return Convert.ToInt32(StrToFloat(expression, defValue));
}

/// <summary>
/// Object型转换为decimal型
/// </summary>
/// <param name="strValue">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的decimal类型结果</returns>
public static decimal ObjToDecimal(object expression, decimal defValue)
{
if (expression != null)
return StrToDecimal(expression.ToString(), defValue);

return defValue;
}

/// <summary>
/// string型转换为decimal型
/// </summary>
/// <param name="strValue">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的decimal类型结果</returns>
public static decimal StrToDecimal(string expression, decimal defValue)
{
if ((expression == null) || (expression.Length > 10))
return defValue;

decimal intValue = defValue;
if (expression != null)
{
bool IsDecimal = Regex.IsMatch(expression, @"^([-]|[0-9])[0-9]*(\.\w*)?$");
if (IsDecimal)
decimal.TryParse(expression, out intValue);
}
return intValue;
}

/// <summary>
/// Object型转换为float型
/// </summary>
/// <param name="strValue">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的int类型结果</returns>
public static float ObjToFloat(object expression, float defValue)
{
if (expression != null)
return StrToFloat(expression.ToString(), defValue);

return defValue;
}

/// <summary>
/// string型转换为float型
/// </summary>
/// <param name="strValue">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的int类型结果</returns>
public static float StrToFloat(string expression, float defValue)
{
if ((expression == null) || (expression.Length > 10))
return defValue;

float intValue = defValue;
if (expression != null)
{
bool IsFloat = Regex.IsMatch(expression, @"^([-]|[0-9])[0-9]*(\.\w*)?$");
if (IsFloat)
float.TryParse(expression, out intValue);
}
return intValue;
}

/// <summary>
/// 将对象转换为日期时间类型
/// </summary>
/// <param name="str">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的int类型结果</returns>
public static DateTime StrToDateTime(string str, DateTime defValue)
{
if (!string.IsNullOrEmpty(str))
{
DateTime dateTime;
if (DateTime.TryParse(str, out dateTime))
return dateTime;
}
return defValue;
}

/// <summary>
/// 将对象转换为日期时间类型
/// </summary>
/// <param name="str">要转换的字符串</param>
/// <returns>转换后的int类型结果</returns>
public static DateTime StrToDateTime(string str)
{
return StrToDateTime(str, DateTime.Now);
}

/// <summary>
/// 将对象转换为日期时间类型
/// </summary>
/// <param name="obj">要转换的对象</param>
/// <returns>转换后的int类型结果</returns>
public static DateTime ObjectToDateTime(object obj)
{
return StrToDateTime(obj.ToString());
}

/// <summary>
/// 将对象转换为日期时间类型
/// </summary>
/// <param name="obj">要转换的对象</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的int类型结果</returns>
public static DateTime ObjectToDateTime(object obj, DateTime defValue)
{
return StrToDateTime(obj.ToString(), defValue);
}

/// <summary>
/// 将对象转换为字符串
/// </summary>
/// <param name="obj">要转换的对象</param>
/// <returns>转换后的string类型结果</returns>
public static string ObjectToStr(object obj)
{
if (obj == null)
return "";
return obj.ToString().Trim();
}

/// <summary>
/// 将对象转换为Int类型
/// </summary>
/// <param name="o"></param>
/// <returns></returns>
public static int ObjToInt(object obj)
{
if (isNumber(obj))
{
return int.Parse(obj.ToString());
}
else
{
return 0;
}
}
/// <summary>
/// 判断对象是否可以转成int型
/// </summary>
/// <param name="o"></param>
/// <returns></returns>
public static bool isNumber(object o)
{
int tmpInt;
if (o == null)
{
return false;
}
if (o.ToString().Trim().Length == 0)
{
return false;
}
if (!int.TryParse(o.ToString(), out tmpInt))
{
return false;
}
else
{
return true;
}
}
#endregion

#region 分割字符串
/// <summary>
/// 分割字符串
/// </summary>
public static string[] SplitString(string strContent, string strSplit)
{
if (!string.IsNullOrEmpty(strContent))
{
if (strContent.IndexOf(strSplit) < 0)
return new string[] { strContent };

return Regex.Split(strContent, Regex.Escape(strSplit), RegexOptions.IgnoreCase);
}
else
return new string[0] { };
}

/// <summary>
/// 分割字符串
/// </summary>
/// <returns></returns>
public static string[] SplitString(string strContent, string strSplit, int count)
{
string[] result = new string[count];
string[] splited = SplitString(strContent, strSplit);

for (int i = 0; i < count; i++)
{
if (i < splited.Length)
result[i] = splited[i];
else
result[i] = string.Empty;
}

return result;
}
#endregion

#region 删除最后结尾的一个逗号
/// <summary>
/// 删除最后结尾的一个逗号
/// </summary>
public static string DelLastComma(string str)
{
if (str.Length < 1)
{
return "";
}
return str.Substring(0, str.LastIndexOf(","));
}
#endregion

#region 删除最后结尾的指定字符后的字符
/// <summary>
/// 删除最后结尾的指定字符后的字符
/// </summary>
public static string DelLastChar(string str, string strchar)
{
if (string.IsNullOrEmpty(str))
return "";
if (str.LastIndexOf(strchar) >= 0 && str.LastIndexOf(strchar) == str.Length - 1)
{
return str.Substring(0, str.LastIndexOf(strchar));
}
return str;
}
#endregion

#region 生成指定长度的字符串
/// <summary>
/// 生成指定长度的字符串,即生成strLong个str字符串
/// </summary>
/// <param name="strLong">生成的长度</param>
/// <param name="str">以str生成字符串</param>
/// <returns></returns>
public static string StringOfChar(int strLong, string str)
{
string ReturnStr = "";
for (int i = 0; i < strLong; i++)
{
ReturnStr += str;
}

return ReturnStr;
}
#endregion

#region 生成日期随机码
/// <summary>
/// 生成日期随机码
/// </summary>
/// <returns></returns>
public static string GetRamCode()
{
#region
return DateTime.Now.ToString("yyyyMMddHHmmssffff");
#endregion
}
#endregion

#region 生成随机字母或数字
/// <summary>
/// 生成随机数字
/// </summary>
/// <param name="length">生成长度</param>
/// <returns></returns>
public static string Number(int Length)
{
return Number(Length, false);
}

/// <summary>
/// 生成随机数字
/// </summary>
/// <param name="Length">生成长度</param>
/// <param name="Sleep">是否要在生成前将当前线程阻止以避免重复</param>
/// <returns></returns>
public static string Number(int Length, bool Sleep)
{
if (Sleep)
System.Threading.Thread.Sleep(3);
string result = "";
System.Random random = new Random();
for (int i = 0; i < Length; i++)
{
result += random.Next(10).ToString();
}
return result;
}
/// <summary>
/// 生成随机字母字符串(数字字母混和)
/// </summary>
/// <param name="codeCount">待生成的位数</param>
public static string GetCheckCode(int codeCount)
{
string str = string.Empty;
int rep = 0;
long num2 = DateTime.Now.Ticks + rep;
rep++;
Random random = new Random(((int)(((ulong)num2) & 0xffffffffL)) | ((int)(num2 >> rep)));
for (int i = 0; i < codeCount; i++)
{
char ch;
int num = random.Next();
if ((num % 2) == 0)
{
ch = (char)(0x30 + ((ushort)(num % 10)));
}
else
{
ch = (char)(0x41 + ((ushort)(num % 0x1a)));
}
str = str + ch.ToString();
}
return str;
}
/// <summary>
/// 根据日期和随机码生成订单号
/// </summary>
/// <returns></returns>
public static string GetOrderNumber()
{
string num = DateTime.Now.ToString("yyMMddHHmmss");//yyyyMMddHHmmssms
return num + Number(2, true).ToString();
}
private static int Next(int numSeeds, int length)
{
byte[] buffer = new byte[length];
System.Security.Cryptography.RNGCryptoServiceProvider Gen = new System.Security.Cryptography.RNGCryptoServiceProvider();
Gen.GetBytes(buffer);
uint randomResult = 0x0;//这里用uint作为生成的随机数
for (int i = 0; i < length; i++)
{
randomResult |= ((uint)buffer[i] << ((length - 1 - i) * 8));
}
return (int)(randomResult % numSeeds);
}
#endregion

#region 截取字符长度
/// <summary>
/// 截取字符长度
/// </summary>
/// <param name="inputString">字符</param>
/// <param name="len">长度</param>
/// <returns></returns>
public static string CutString(string inputString, int len)
{
if (string.IsNullOrEmpty(inputString))
return "";
inputString = DropHTML(inputString);
ASCIIEncoding ascii = new ASCIIEncoding();
int tempLen = 0;
string tempString = "";
byte[] s = ascii.GetBytes(inputString);
for (int i = 0; i < s.Length; i++)
{
if ((int)s[i] == 63)
{
tempLen += 2;
}
else
{
tempLen += 1;
}

try
{
tempString += inputString.Substring(i, 1);
}
catch
{
break;
}

if (tempLen > len)
break;
}
//如果截过则加上半个省略号
byte[] mybyte = System.Text.Encoding.Default.GetBytes(inputString);
if (mybyte.Length > len)
tempString += "…";
return tempString;
}
#endregion

#region 清除HTML标记
public static string DropHTML(string Htmlstring)
{
if (string.IsNullOrEmpty(Htmlstring)) return "";
//删除脚本
Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);
//删除HTML
Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"([\r\n])[\s]+", "", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase);
Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase);
Htmlstring.Replace("<", "");
Htmlstring.Replace(">", "");
Htmlstring.Replace("\r\n", "");
Htmlstring.Replace(" ", "");
Htmlstring = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();
return Htmlstring;
}
#endregion

#region 清除HTML标记且返回相应的长度
public static string DropHTML(string Htmlstring, int strLen)
{
return CutString(DropHTML(Htmlstring), strLen);
}
#endregion

#region TXT代码转换成HTML格式
/// <summary>
/// 字符串字符处理
/// </summary>
/// <param name="chr">等待处理的字符串</param>
/// <returns>处理后的字符串</returns>
/// //把TXT代码转换成HTML格式
public static String ToHtml(string Input)
{
StringBuilder sb = new StringBuilder(Input);
sb.Replace("&", "&");
sb.Replace("<", "<");
sb.Replace(">", ">");
sb.Replace("\r\n", "<br />");
sb.Replace("\n", "<br />");
sb.Replace("\t", " ");
//sb.Replace(" ", " ");
return sb.ToString();
}
#endregion

#region HTML代码转换成TXT格式
/// <summary>
/// 字符串字符处理
/// </summary>
/// <param name="chr">等待处理的字符串</param>
/// <returns>处理后的字符串</returns>
/// //把HTML代码转换成TXT格式
public static String ToTxt(String Input)
{
StringBuilder sb = new StringBuilder(Input);
sb.Replace(" ", " ");
sb.Replace("<br>", "\r\n");
sb.Replace("<br>", "\n");
sb.Replace("<br />", "\n");
sb.Replace("<br />", "\r\n");
sb.Replace("<", "<");
sb.Replace(">", ">");
sb.Replace("&", "&");
return sb.ToString();
}
#endregion

#region 检测是否有Sql危险字符
/// <summary>
/// 检测是否有Sql危险字符
/// </summary>
/// <param name="str">要判断字符串</param>
/// <returns>判断结果</returns>
public static bool IsSafeSqlString(string str)
{
return !Regex.IsMatch(str, @"[-|;|,|\/|\(|\)|\[|\]|\}|\{|%|@|\*|!|\']");
}

/// <summary>
/// 检查危险字符
/// </summary>
/// <param name="Input"></param>
/// <returns></returns>
public static string Filter(string sInput)
{
if (sInput == null || sInput == "")
return null;
string sInput1 = sInput.ToLower();
string output = sInput;
string pattern = @"*|and|exec|insert|select|delete|update|count|master|truncate|declare|char(|mid(|chr(|'";
if (Regex.Match(sInput1, Regex.Escape(pattern), RegexOptions.Compiled | RegexOptions.IgnoreCase).Success)
{
throw new Exception("字符串中含有非法字符!");
}
else
{
output = output.Replace("'", "''");
}
return output;
}

/// <summary>
/// 检查过滤设定的危险字符
/// </summary>
/// <param name="InText">要过滤的字符串 </param>
/// <returns>如果参数存在不安全字符，则返回true </returns>
public static bool SqlFilter(string word, string InText)
{
if (InText == null)
return false;
foreach (string i in word.Split('|'))
{
if ((InText.ToLower().IndexOf(i + " ") > -1) || (InText.ToLower().IndexOf(" " + i) > -1))
{
return true;
}
}
return false;
}
#endregion

#region 过滤特殊字符
/// <summary>
/// 过滤特殊字符
/// </summary>
/// <param name="Input"></param>
/// <returns></returns>
public static string Htmls(string Input)
{
if (Input != string.Empty && Input != null)
{
string ihtml = Input.ToLower();
ihtml = ihtml.Replace("<script", "<script");
ihtml = ihtml.Replace("script>", "script>");
ihtml = ihtml.Replace("<%", "<%");
ihtml = ihtml.Replace("%>", "%>");
ihtml = ihtml.Replace("<$", "<$");
ihtml = ihtml.Replace("$>", "$>");
return ihtml;
}
else
{
return string.Empty;
}
}
#endregion

#region 检查是否为IP地址
/// <summary>
/// 是否为ip
/// </summary>
/// <param name="ip"></param>
/// <returns></returns>
public static bool IsIP(string ip)
{
return Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$");
}
#endregion

#region 获得配置文件节点XML文件的绝对路径
public static string GetXmlMapPath(string xmlName)
{
return GetMapPath(ConfigurationManager.AppSettings[xmlName].ToString());
}
#endregion

#region 获得当前绝对路径
/// <summary>
/// 获得当前绝对路径
/// </summary>
/// <param name="strPath">指定的路径</param>
/// <returns>绝对路径</returns>
public static string GetMapPath(string strPath)
{
if (strPath.ToLower().StartsWith("http://"))
{
return strPath;
}
if (HttpContext.Current != null)
{
return HttpContext.Current.Server.MapPath(strPath);
}
else //非web程序引用
{
strPath = strPath.Replace("/", "\\");
if (strPath.StartsWith("\\"))
{
strPath = strPath.Substring(strPath.IndexOf('\\', 1)).TrimStart('\\');
}
return System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, strPath);
}
}
#endregion

#region 文件操作
/// <summary>
/// 删除单个文件
/// </summary>
/// <param name="_filepath">文件相对路径</param>
public static bool DeleteFile(string _filepath)
{
if (string.IsNullOrEmpty(_filepath))
{
return false;
}
string fullpath = GetMapPath(_filepath);
if (File.Exists(fullpath))
{
File.Delete(fullpath);
return true;
}
return false;
}

/// <summary>
/// 删除上传的文件(及缩略图)
/// </summary>
/// <param name="_filepath"></param>
public static void DeleteUpFile(string _filepath)
{
if (string.IsNullOrEmpty(_filepath))
{
return;
}
string fullpath = GetMapPath(_filepath); //原图
if (File.Exists(fullpath))
{
File.Delete(fullpath);
}
if (_filepath.LastIndexOf("/") >= 0)
{
string thumbnailpath = _filepath.Substring(0, _filepath.LastIndexOf("/")) + "mall_" + _filepath.Substring(_filepath.LastIndexOf("/") + 1);
string fullTPATH = GetMapPath(thumbnailpath); //宿略图
if (File.Exists(fullTPATH))
{
File.Delete(fullTPATH);
}
}
}

/// <summary>
/// 删除内容图片
/// </summary>
/// <param name="content">内容</param>
/// <param name="startstr">匹配开头字符串</param>
public static void DeleteContentPic(string content, string startstr)
{
if (string.IsNullOrEmpty(content))
{
return;
}
Regex reg = new Regex("IMG[^>]*?src\\s*=\\s*(?:\"(?<1>[^\"]*)\"|'(?<1>[^\']*)')", RegexOptions.IgnoreCase);
MatchCollection m = reg.Matches(content);
foreach (Match math in m)
{
string imgUrl = math.Groups[1].Value;
string fullPath = GetMapPath(imgUrl);
try
{
if (imgUrl.ToLower().StartsWith(startstr.ToLower()) && File.Exists(fullPath))
{
File.Delete(fullPath);
}
}
catch { }
}
}

/// <summary>
/// 删除指定文件夹
/// </summary>
/// <param name="_dirpath">文件相对路径</param>
public static bool DeleteDirectory(string _dirpath)
{
if (string.IsNullOrEmpty(_dirpath))
{
return false;
}
string fullpath = GetMapPath(_dirpath);
if (Directory.Exists(fullpath))
{
Directory.Delete(fullpath, true);
return true;
}
return false;
}

/// <summary>
/// 修改指定文件夹名称
/// </summary>
/// <param name="old_dirpath">旧相对路径</param>
/// <param name="new_dirpath">新相对路径</param>
/// <returns>bool</returns>
public static bool MoveDirectory(string old_dirpath, string new_dirpath)
{
if (string.IsNullOrEmpty(old_dirpath))
{
return false;
}
string fulloldpath = GetMapPath(old_dirpath);
string fullnewpath = GetMapPath(new_dirpath);
if (Directory.Exists(fulloldpath))
{
Directory.Move(fulloldpath, fullnewpath);
return true;
}
return false;
}

/// <summary>
/// 返回文件大小KB
/// </summary>
/// <param name="_filepath">文件相对路径</param>
/// <returns>int</returns>
public static int GetFileSize(string _filepath)
{
if (string.IsNullOrEmpty(_filepath))
{
return 0;
}
string fullpath = GetMapPath(_filepath);
if (File.Exists(fullpath))
{
FileInfo fileInfo = new FileInfo(fullpath);
return ((int)fileInfo.Length) / 1024;
}
return 0;
}

/// <summary>
/// 返回文件扩展名，不含“.”
/// </summary>
/// <param name="_filepath">文件全名称</param>
/// <returns>string</returns>
public static string GetFileExt(string _filepath)
{
if (string.IsNullOrEmpty(_filepath))
{
return "";
}
if (_filepath.LastIndexOf(".") > 0)
{
return _filepath.Substring(_filepath.LastIndexOf(".") + 1); //文件扩展名，不含“.”
}
return "";
}

/// <summary>
/// 返回文件名，不含路径
/// </summary>
/// <param name="_filepath">文件相对路径</param>
/// <returns>string</returns>
public static string GetFileName(string _filepath)
{
return _filepath.Substring(_filepath.LastIndexOf(@"/") + 1);
}

/// <summary>
/// 文件是否存在
/// </summary>
/// <param name="_filepath">文件相对路径</param>
/// <returns>bool</returns>
public static bool FileExists(string _filepath)
{
string fullpath = GetMapPath(_filepath);
if (File.Exists(fullpath))
{
return true;
}
return false;
}

/// <summary>
/// 获得远程字符串
/// </summary>
public static string GetDomainStr(string key, string uriPath)
{
string result = CacheHelper.Get(key) as string;
if (result == null)
{
System.Net.WebClient client = new System.Net.WebClient();
try
{
client.Encoding = System.Text.Encoding.UTF8;
result = client.DownloadString(uriPath);
}
catch
{
result = "暂时无法连接!";
}
CacheHelper.Insert(key, result, 60);
}

return result;
}

#endregion

#region 读取或写入cookie
/// <summary>
/// 写cookie值
/// </summary>
/// <param name="strName">名称</param>
/// <param name="strValue">值</param>
public static void WriteCookie(string strName, string strValue)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
if (cookie == null)
{
cookie = new HttpCookie(strName);
}
cookie.Value = UrlEncode(strValue);
HttpContext.Current.Response.AppendCookie(cookie);
}

/// <summary>
/// 写cookie值
/// </summary>
/// <param name="strName">名称</param>
/// <param name="strValue">值</param>
public static void WriteCookie(string strName, string key, string strValue)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
if (cookie == null)
{
cookie = new HttpCookie(strName);
}
cookie[key] = UrlEncode(strValue);
HttpContext.Current.Response.AppendCookie(cookie);
}

/// <summary>
/// 写cookie值
/// </summary>
/// <param name="strName">名称</param>
/// <param name="strValue">值</param>
public static void WriteCookie(string strName, string key, string strValue, int expires)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
if (cookie == null)
{
cookie = new HttpCookie(strName);
}
cookie[key] = UrlEncode(strValue);
cookie.Expires = DateTime.Now.AddMinutes(expires);
HttpContext.Current.Response.AppendCookie(cookie);
}

/// <summary>
/// 写cookie值
/// </summary>
/// <param name="strName">名称</param>
/// <param name="strValue">值</param>
/// <param name="strValue">过期时间(分钟)</param>
public static void WriteCookie(string strName, string strValue, int expires)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
if (cookie == null)
{
cookie = new HttpCookie(strName);
}
cookie.Value = UrlEncode(strValue);
cookie.Expires = DateTime.Now.AddMinutes(expires);
HttpContext.Current.Response.AppendCookie(cookie);
}

/// <summary>
/// 读cookie值
/// </summary>
/// <param name="strName">名称</param>
/// <returns>cookie值</returns>
public static string GetCookie(string strName)
{
if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null)
return UrlDecode(HttpContext.Current.Request.Cookies[strName].Value.ToString());
return "";
}

/// <summary>
/// 读cookie值
/// </summary>
/// <param name="strName">名称</param>
/// <returns>cookie值</returns>
public static string GetCookie(string strName, string key)
{
if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null && HttpContext.Current.Request.Cookies[strName][key] != null)
return UrlDecode(HttpContext.Current.Request.Cookies[strName][key].ToString());

return "";
}
#endregion

#region 替换指定的字符串
/// <summary>
/// 替换指定的字符串
/// </summary>
/// <param name="originalStr">原字符串</param>
/// <param name="oldStr">旧字符串</param>
/// <param name="newStr">新字符串</param>
/// <returns></returns>
public static string ReplaceStr(string originalStr, string oldStr, string newStr)
{
if (string.IsNullOrEmpty(oldStr))
{
return "";
}
return originalStr.Replace(oldStr, newStr);
}
#endregion

#region 显示分页
/// <summary>
/// 返回分页页码
/// </summary>
/// <param name="pageSize">页面大小</param>
/// <param name="pageIndex">当前页</param>
/// <param name="totalCount">总记录数</param>
/// <param name="linkUrl">链接地址，__id__代表页码</param>
/// <param name="centSize">中间页码数量</param>
/// <returns></returns>
public static string OutPageList(int pageSize, int pageIndex, int totalCount, string linkUrl, int centSize)
{
//计算页数
if (totalCount < 1 || pageSize < 1)
{
return "";
}
int pageCount = totalCount / pageSize;
if (pageCount < 1)
{
return "";
}
if (totalCount % pageSize > 0)
{
pageCount += 1;
}
if (pageCount <= 1)
{
return "";
}
StringBuilder pageStr = new StringBuilder();
string pageId = "__id__";
string firstBtn = "<a href=\"" + ReplaceStr(linkUrl, pageId, (pageIndex - 1).ToString()) + "\">«上一页</a>";
string lastBtn = "<a href=\"" + ReplaceStr(linkUrl, pageId, (pageIndex + 1).ToString()) + "\">下一页»</a>";
string firstStr = "<a href=\"" + ReplaceStr(linkUrl, pageId, "1") + "\">1</a>";
string lastStr = "<a href=\"" + ReplaceStr(linkUrl, pageId, pageCount.ToString()) + "\">" + pageCount.ToString() + "</a>";

if (pageIndex <= 1)
{
firstBtn = "<span class=\"disabled\">«上一页</span>";
}
if (pageIndex >= pageCount)
{
lastBtn = "<span class=\"disabled\">下一页»</span>";
}
if (pageIndex == 1)
{
firstStr = "<span class=\"current\">1</span>";
}
if (pageIndex == pageCount)
{
lastStr = "<span class=\"current\">" + pageCount.ToString() + "</span>";
}
int firstNum = pageIndex - (centSize / 2); //中间开始的页码
if (pageIndex < centSize)
firstNum = 2;
int lastNum = pageIndex + centSize - ((centSize / 2) + 1); //中间结束的页码
if (lastNum >= pageCount)
lastNum = pageCount - 1;
pageStr.Append("<span>共" + totalCount + "记录</span>");
pageStr.Append(firstBtn + firstStr);
if (pageIndex >= centSize)
{
pageStr.Append("<span>...</span>\n");
}
for (int i = firstNum; i <= lastNum; i++)
{
if (i == pageIndex)
{
pageStr.Append("<span class=\"current\">" + i + "</span>");
}
else
{
pageStr.Append("<a href=\"" + ReplaceStr(linkUrl, pageId, i.ToString()) + "\">" + i + "</a>");
}
}
if (pageCount - pageIndex > centSize - ((centSize / 2)))
{
pageStr.Append("<span>...</span>");
}
pageStr.Append(lastStr + lastBtn);
return pageStr.ToString();
}
#endregion

#region URL处理
/// <summary>
/// URL字符编码
/// </summary>
public static string UrlEncode(string str)
{
if (string.IsNullOrEmpty(str))
{
return "";
}
str = str.Replace("'", "");
return HttpContext.Current.Server.UrlEncode(str);
}

/// <summary>
/// URL字符解码
/// </summary>
public static string UrlDecode(string str)
{
if (string.IsNullOrEmpty(str))
{
return "";
}
return HttpContext.Current.Server.UrlDecode(str);
}

/// <summary>
/// 组合URL参数
/// </summary>
/// <param name="_url">页面地址</param>
/// <param name="_keys">参数名称</param>
/// <param name="_values">参数值</param>
/// <returns>String</returns>
public static string CombUrlTxt(string _url, string _keys, params string[] _values)
{
StringBuilder urlParams = new StringBuilder();
try
{
string[] keyArr = _keys.Split(new char[] { '&' });
for (int i = 0; i < keyArr.Length; i++)
{
if (!string.IsNullOrEmpty(_values[i]) && _values[i] != "0")
{
_values[i] = UrlEncode(_values[i]);
urlParams.Append(string.Format(keyArr[i], _values) + "&");
}
}
if (!string.IsNullOrEmpty(urlParams.ToString()) && _url.IndexOf("?") == -1)
urlParams.Insert(0, "?");
}
catch
{
return _url;
}
return _url + DelLastChar(urlParams.ToString(), "&");
}
#endregion

#region URL请求数据
/// <summary>
/// HTTP POST方式请求数据
/// </summary>
/// <param name="url">URL.</param>
/// <param name="param">POST的数据</param>
/// <returns></returns>
public static string HttpPost(string url, string param)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.Accept = "*/*";
request.Timeout = 15000;
request.AllowAutoRedirect = false;

StreamWriter requestStream = null;
WebResponse response = null;
string responseStr = null;

try
{
requestStream = new StreamWriter(request.GetRequestStream());
requestStream.Write(param);
requestStream.Close();

response = request.GetResponse();
if (response != null)
{
StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
responseStr = reader.ReadToEnd();
reader.Close();
}
}
catch (Exception)
{
throw;
}
finally
{
request = null;
requestStream = null;
response = null;
}

return responseStr;
}

/// <summary>
/// HTTP GET方式请求数据.
/// </summary>
/// <param name="url">URL.</param>
/// <returns></returns>
public static string HttpGet(string url)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
request.Method = "GET";
//request.ContentType = "application/x-www-form-urlencoded";
request.Accept = "*/*";
request.Timeout = 15000;
request.AllowAutoRedirect = false;

WebResponse response = null;
string responseStr = null;

try
{
response = request.GetResponse();

if (response != null)
{
StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
responseStr = reader.ReadToEnd();
reader.Close();
}
}
catch (Exception)
{
throw;
}
finally
{
request = null;
response = null;
}

return responseStr;
}

/// <summary>
/// 执行URL获取页面内容
/// </summary>
public static string UrlExecute(string urlPath)
{
if (string.IsNullOrEmpty(urlPath))
{
return "error";
}
StringWriter sw = new StringWriter();
try
{
HttpContext.Current.Server.Execute(urlPath, sw);
return sw.ToString();
}
catch (Exception)
{
return "error";
}
finally
{
sw.Close();
sw.Dispose();
}
}
#endregion

#region 操作权限菜单
/// <summary>
/// 获取操作权限
/// </summary>
/// <returns>Dictionary</returns>
public static Dictionary<string, string> ActionType()
{
Dictionary<string, string> dic = new Dictionary<string, string>();
dic.Add("Show", "显示");
dic.Add("View", "查看");
dic.Add("Add", "添加");
dic.Add("Edit", "修改");
dic.Add("Delete", "删除");
dic.Add("Audit", "审核");
dic.Add("Reply", "回复");
dic.Add("Confirm", "确认");
dic.Add("Cancel", "取消");
dic.Add("Invalid", "作废");
dic.Add("Build", "生成");
dic.Add("Instal", "安装");
dic.Add("Unload", "卸载");
dic.Add("Back", "备份");
dic.Add("Restore", "还原");
dic.Add("Replace", "替换");
return dic;
}
#endregion

#region 替换URL
/// <summary>
/// 替换扩展名
/// </summary>
public static string GetUrlExtension(string urlPage, string staticExtension)
{
int indexNum = urlPage.LastIndexOf('.');
if (indexNum > 0)
{
return urlPage.Replace(urlPage.Substring(indexNum), "." + staticExtension);
}
return urlPage;
}
/// <summary>
/// 替换扩展名，如没有扩展名替换默认首页
/// </summary>
public static string GetUrlExtension(string urlPage, string staticExtension, bool defaultVal)
{
int indexNum = urlPage.LastIndexOf('.');
if (indexNum > 0)
{
return urlPage.Replace(urlPage.Substring(indexNum), "." + staticExtension);
}
if (defaultVal)
{
if (urlPage.EndsWith("/"))
{
return urlPage + "index." + staticExtension;
}
else
{
return urlPage + "/index." + staticExtension;
}
}
return urlPage;
}
#endregion

}