using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
using System.IO;
using System.Net;
using System.Configuration;
using System.Web;
namespace Common
{
public class Utils
{
#region 系統版本
/// <summary>
/// 版本資訊類
/// </summary>
public class VersionInfo
{
public int FileMajorPart
{
get { return 2; }
}
public int FileMinorPart
get { return 1; }
public int FileBuildPart
get { return 0; }
public string ProductName
get { return "DTcms"; }
public int ProductType
}
#endregion
#region 對象轉換處理
/// 判斷對象是否為Int32類型的數字
/// <param name="Expression"></param>
/// <returns></returns>
public static bool IsNumeric(object expression)
if (expression != null)
return IsNumeric(expression.ToString());
return false;
public static bool IsNumeric(string expression)
string str = expression;
if (str.Length > 0 && str.Length <= 11 && Regex.IsMatch(str, @"^[-]?[0-9]*[.]?[0-9]*$"))
{
if ((str.Length < 10) || (str.Length == 10 && str[0] == '1') || (str.Length == 11 && str[0] == '-' && str[1] == '1'))
return true;
}
/// 是否為Double類型
/// <param name="expression"></param>
public static bool IsDouble(object expression)
return Regex.IsMatch(expression.ToString(), @"^([0-9])[0-9]*(\.\w*)?$");
/// 将字元串轉換為數組
/// <param name="str">字元串</param>
/// <returns>字元串數組</returns>
public static string[] GetStrArray(string str)
return str.Split(new char[',']);
/// 将數組轉換為字元串
/// <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(speater);
return sb.ToString();
/// object型轉換為bool型
/// <param name="strValue">要轉換的字元串</param>
/// <param name="defValue">預設值</param>
/// <returns>轉換後的bool類型結果</returns>
public static bool StrToBool(object expression, bool defValue)
return StrToBool(expression, defValue);
return defValue;
/// string型轉換為bool型
public static bool StrToBool(string expression, bool defValue)
if (string.Compare(expression, "true", true) == 0)
return true;
else if (string.Compare(expression, "false", true) == 0)
return false;
/// 将對象轉換為Int32類型
/// <param name="expression">要轉換的字元串</param>
/// <returns>轉換後的int類型結果</returns>
public static int ObjToInt(object expression, int defValue)
return StrToInt(expression.ToString(), defValue);
/// 将字元串轉換為Int32類型
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*)?$"))
return defValue;
int rv;
if (Int32.TryParse(expression, out rv))
return rv;
return Convert.ToInt32(StrToFloat(expression, defValue));
/// Object型轉換為decimal型
/// <returns>轉換後的decimal類型結果</returns>
public static decimal ObjToDecimal(object expression, decimal defValue)
return StrToDecimal(expression.ToString(), defValue);
/// string型轉換為decimal型
public static decimal StrToDecimal(string expression, decimal defValue)
if ((expression == null) || (expression.Length > 10))
decimal intValue = defValue;
bool IsDecimal = Regex.IsMatch(expression, @"^([-]|[0-9])[0-9]*(\.\w*)?$");
if (IsDecimal)
decimal.TryParse(expression, out intValue);
return intValue;
/// Object型轉換為float型
public static float ObjToFloat(object expression, float defValue)
return StrToFloat(expression.ToString(), defValue);
/// string型轉換為float型
public static float StrToFloat(string expression, float defValue)
float intValue = defValue;
bool IsFloat = Regex.IsMatch(expression, @"^([-]|[0-9])[0-9]*(\.\w*)?$");
if (IsFloat)
float.TryParse(expression, out intValue);
/// 将對象轉換為日期時間類型
/// <param name="str">要轉換的字元串</param>
public static DateTime StrToDateTime(string str, DateTime defValue)
if (!string.IsNullOrEmpty(str))
DateTime dateTime;
if (DateTime.TryParse(str, out dateTime))
return dateTime;
public static DateTime StrToDateTime(string str)
return StrToDateTime(str, DateTime.Now);
/// <param name="obj">要轉換的對象</param>
public static DateTime ObjectToDateTime(object obj)
return StrToDateTime(obj.ToString());
public static DateTime ObjectToDateTime(object obj, DateTime defValue)
return StrToDateTime(obj.ToString(), defValue);
/// 将對象轉換為字元串
/// <returns>轉換後的string類型結果</returns>
public static string ObjectToStr(object obj)
if (obj == null)
return "";
return obj.ToString().Trim();
#region 分割字元串
/// 分割字元串
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] { };
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];
result[i] = string.Empty;
return result;
#region 删除最後結尾的一個逗号
/// 删除最後結尾的一個逗号
public static string DelLastComma(string str)
return str.Substring(0, str.LastIndexOf(","));
#region 删除最後結尾的指定字元後的字元
/// 删除最後結尾的指定字元後的字元
public static string DelLastChar(string str, string strchar)
if (string.IsNullOrEmpty(str))
if (str.LastIndexOf(strchar) >= 0 && str.LastIndexOf(strchar) == str.Length - 1)
return str.Substring(0, str.LastIndexOf(strchar));
return str;
#region 生成指定長度的字元串
/// 生成指定長度的字元串,即生成strLong個str字元串
/// <param name="strLong">生成的長度</param>
/// <param name="str">以str生成字元串</param>
public static string StringOfChar(int strLong, string str)
string ReturnStr = "";
for (int i = 0; i < strLong; i++)
ReturnStr += str;
return ReturnStr;
#region 生成日期随機碼
/// 生成日期随機碼
public static string GetRamCode()
#region
return DateTime.Now.ToString("yyyyMMddHHmmssffff");
#endregion
#region 生成随機字母或數字
/// 生成随機數字
/// <param name="length">生成長度</param>
public static string Number(int Length)
return Number(Length, false);
/// <param name="Length">生成長度</param>
/// <param name="Sleep">是否要在生成前将目前線程阻止以避免重複</param>
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();
/// 生成随機字母字元串(數字字母混和)
/// <param name="codeCount">待生成的位數</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)));
ch = (char)(0x41 + ((ushort)(num % 0x1a)));
str = str + ch.ToString();
/// 根據日期和随機碼生成訂單号
public static string GetOrderNumber()
string num = DateTime.Now.ToString("yyMMddHHmmss");//yyyyMMddHHmmssms
return num + Number(2).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;//這裡用uint作為生成的随機數
for (int i = 0; i < length; i++)
randomResult |= ((uint)buffer[i] << ((length - 1 - i) * 8));
return (int)(randomResult % numSeeds);
#region 截取字元長度
/// 截取字元長度
/// <param name="inputString">字元</param>
/// <param name="len">長度</param>
public static string CutString(string inputString, int len)
if (string.IsNullOrEmpty(inputString))
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;
tempLen += 1;
try
tempString += inputString.Substring(i, 1);
catch
break;
if (tempLen > len)
//如果截過則加上半個省略号
byte[] mybyte = System.Text.Encoding.Default.GetBytes(inputString);
if (mybyte.Length > len)
tempString += "…";
return tempString;
#region 清除HTML标記
public static string DropHTML(string Htmlstring)
if (string.IsNullOrEmpty(Htmlstring)) return "";
//删除腳本
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 = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();
return Htmlstring;
#region 清除HTML标記且傳回相應的長度
public static string DropHTML(string Htmlstring, int strLen)
return CutString(DropHTML(Htmlstring), strLen);
#region TXT代碼轉換成HTML格式
/// 字元串字元處理
/// <param name="chr">等待處理的字元串</param>
/// <returns>處理後的字元串</returns>
/// //把TXT代碼轉換成HTML格式
public static String ToHtml(string Input)
StringBuilder sb = new StringBuilder(Input);
sb.Replace("&", "&amp;");
sb.Replace("<", "&lt;");
sb.Replace(">", "&gt;");
sb.Replace("\r\n", "<br />");
sb.Replace("\n", "<br />");
sb.Replace("\t", " ");
//sb.Replace(" ", "&nbsp;");
#region HTML代碼轉換成TXT格式
/// //把HTML代碼轉換成TXT格式
public static String ToTxt(String Input)
sb.Replace("&nbsp;", " ");
sb.Replace("<br>", "\r\n");
sb.Replace("<br>", "\n");
sb.Replace("<br />", "\n");
sb.Replace("<br />", "\r\n");
sb.Replace("&lt;", "<");
sb.Replace("&gt;", ">");
sb.Replace("&amp;", "&");
#region 檢測是否有Sql危險字元
/// 檢測是否有Sql危險字元
/// <param name="str">要判斷字元串</param>
/// <returns>判斷結果</returns>
public static bool IsSafeSqlString(string str)
return !Regex.IsMatch(str, @"[-|;|,|\/|\(|\)|\[|\]|\}|\{|%|@|\*|!|\']");
/// 檢查危險字元
/// <param name="Input"></param>
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("字元串中含有非法字元!");
output = output.Replace("'", "''");
return output;
/// <summary>
/// 檢查過濾設定的危險字元
/// </summary>
/// <param name="InText">要過濾的字元串 </param>
/// <returns>如果參數存在不安全字元,則傳回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))
#region 過濾特殊字元
/// 過濾特殊字元
public static string Htmls(string Input)
if (Input != string.Empty && Input != null)
string ihtml = Input.ToLower();
ihtml = ihtml.Replace("<script", "&lt;script");
ihtml = ihtml.Replace("script>", "script&gt;");
ihtml = ihtml.Replace("<%", "&lt;%");
ihtml = ihtml.Replace("%>", "%&gt;");
ihtml = ihtml.Replace("<$", "&lt;$");
ihtml = ihtml.Replace("$>", "$&gt;");
return ihtml;
return string.Empty;
#region 檢查是否為IP位址
/// 是否為ip
/// <param name="ip"></param>
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?)$");
#region 獲得目前絕對路徑
/// 獲得目前絕對路徑
/// <param name="strPath">指定的路徑</param>
/// <returns>絕對路徑</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程式引用
strPath = strPath.Replace("/", "\\");
if (strPath.StartsWith("\\"))
strPath = strPath.Substring(strPath.IndexOf('\\', 1)).TrimStart('\\');
return System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, strPath);
#region 檔案操作
/// 删除單個檔案
/// <param name="_filepath">檔案相對路徑</param>
public static bool DeleteFile(string _filepath)
if (string.IsNullOrEmpty(_filepath))
string fullpath = GetMapPath(_filepath);
if (File.Exists(fullpath))
File.Delete(fullpath);
return true;
/// 删除上傳的檔案(及縮略圖)
/// <param name="_filepath"></param>
public static void DeleteUpFile(string _filepath)
return;
string fullpath = GetMapPath(_filepath); //原圖
if (_filepath.LastIndexOf("/") >= 0)
string thumbnailpath = _filepath.Substring(0, _filepath.LastIndexOf("/")) + "mall_" + _filepath.Substring(_filepath.LastIndexOf("/") + 1);
string fullTPATH = GetMapPath(thumbnailpath); //宿略圖
if (File.Exists(fullTPATH))
File.Delete(fullTPATH);
/// 傳回檔案大小KB
/// <returns>int</returns>
public static int GetFileSize(string _filepath)
return 0;
FileInfo fileInfo = new FileInfo(fullpath);
return ((int)fileInfo.Length) / 1024;
return 0;
/// 傳回檔案擴充名,不含“.”
/// <param name="_filepath">檔案全名稱</param>
/// <returns>string</returns>
public static string GetFileExt(string _filepath)
if (_filepath.LastIndexOf(".") > 0)
return _filepath.Substring(_filepath.LastIndexOf(".") + 1); //檔案擴充名,不含“.”
return "";
/// 傳回檔案名,不含路徑
public static string GetFileName(string _filepath)
return _filepath.Substring(_filepath.LastIndexOf(@"/") + 1);
/// 檔案是否存在
/// <returns>bool</returns>
public static bool FileExists(string _filepath)
#region 讀取或寫入cookie
/// 寫cookie值
/// <param name="strName">名稱</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);
public static void WriteCookie(string strName, string key, string strValue)
cookie[key] = UrlEncode(strValue);
public static void WriteCookie(string strName, string key, string strValue, int expires)
cookie.Expires = DateTime.Now.AddMinutes(expires);
/// <param name="strValue">過期時間(分鐘)</param>
public static void WriteCookie(string strName, string strValue, int expires)
/// 讀cookie值
/// <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());
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());
#region 替換指定的字元串
/// 替換指定的字元串
/// <param name="originalStr">原字元串</param>
/// <param name="oldStr">舊字元串</param>
/// <param name="newStr">新字元串</param>
public static string ReplaceStr(string originalStr, string oldStr, string newStr)
if (string.IsNullOrEmpty(oldStr))
return originalStr.Replace(oldStr, newStr);
#region 顯示分頁
/// 傳回分頁頁碼
/// <param name="pageSize">頁面大小</param>
/// <param name="pageIndex">目前頁</param>
/// <param name="totalCount">總記錄數</param>
/// <param name="linkUrl">連結位址,__id__代表頁碼</param>
/// <param name="centSize">中間頁碼數量</param>
public static string OutPageList(int pageSize, int pageIndex, int totalCount, string linkUrl, int centSize)
//計算頁數
if (totalCount < 1 || pageSize < 1)
int pageCount = totalCount / pageSize;
if (pageCount < 1)
if (totalCount % pageSize > 0)
pageCount += 1;
if (pageCount <= 1)
StringBuilder pageStr = new StringBuilder();
string pageId = "__id__";
string firstBtn = "<a href=\"" + ReplaceStr(linkUrl, pageId, (pageIndex - 1).ToString()) + "\">上一頁</a>";
string lastBtn = "<a href=\"" + ReplaceStr(linkUrl, pageId, (pageIndex + 1).ToString()) + "\">下一頁</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\">上一頁</span>";
if (pageIndex >= pageCount)
lastBtn = "<span class=\"disabled\">下一頁</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); //中間開始的頁碼
if (pageIndex < centSize)
firstNum = 2;
int lastNum = pageIndex + centSize - ((centSize / 2) + 1); //中間結束的頁碼
if (lastNum >= pageCount)
lastNum = pageCount - 1;
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>");
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();
#region URL處理
/// URL字元編碼
public static string UrlEncode(string str)
str = str.Replace("'", "");
return HttpContext.Current.Server.UrlEncode(str);
/// URL字元解碼
public static string UrlDecode(string str)
return HttpContext.Current.Server.UrlDecode(str);
/// 組合URL參數
/// <param name="_url">頁面位址</param>
/// <param name="_keys">參數名稱</param>
/// <param name="_values">參數值</param>
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(), "&");
#region URL請求資料
/// HTTP POST方式請求資料
/// <param name="url">URL.</param>
/// <param name="param">POST的資料</param>
public static string HttpPost(string url, string param)
System.Net.ServicePointManager.Expect100Continue = false;
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;
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;
/// HTTP GET方式請求資料.
public static string HttpGet(string url)
ServicePointManager.ServerCertificateValidationCallback =
delegate { return true; };
request.Method = "GET";
//request.ContentType = "application/x-www-form-urlencoded";
/// 執行URL擷取頁面内容
public static string UrlExecute(string urlPath)
if (string.IsNullOrEmpty(urlPath))
return "error";
StringWriter sw = new StringWriter();
HttpContext.Current.Server.Execute(urlPath, sw);
return sw.ToString();
sw.Close();
sw.Dispose();
}
}