/// <summary>
/// 获取字符串或汉字的长度
/// </summary>
/// <param name="str">字符串或汉字</param>
/// <returns>长度</returns>
public static int GetStrLength(string str)
{
if(str==null||str==string.Empty)
{
return 0;
}
else
{
return System.Text.Encoding.Default.GetByteCount(str);
}
}
/// <summary>
/// 获取随即数
/// </summary>
/// <returns></returns>
public static string GetCode()
{
string checkCode = string.Empty;
Random ro=new Random(System.Guid.NewGuid().GetHashCode());
checkCode = DateTime.Now.ToString("yyyyMMddHHmmss") + ro.Next(99999);
return checkCode;
}
/// <summary>
/// 判断时候是数字组合
/// </summary>
/// <param name="strDate"></param>
/// <returns></returns>
public static bool IsNumber(string strDate)
{
if (strDate == null)
{
return false;
}
if (strDate.Equals(string.Empty))
{
return false;
}
Regex numRegex = new Regex(@"0*[0-9][0-9]*$");
return numRegex.IsMatch(strDate);
}
/// <summary>
/// 判断是不是合法的email
/// </summary>
/// <param name="strDate"></param>
/// <returns></returns>
public static bool IsEmail(string strDate)
{
Regex mailRegex = new Regex(@"\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$");
return mailRegex.IsMatch(strDate);
}
/// <summary>
/// 判断是不是合法的日期
/// </summary>
/// <param name="strDate"></param>
/// <returns></returns>
public static bool IsDate(string strDate)
{
if (strDate == null)
{
return false;
}
Regex dateRegex = new Regex(@"^((\d{2}(([02468][048])|([13579][26]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|([1-2][0-9])))))|(\d{2}(([02468][1235679])|([13579][01345789]))[\-\/\s]?((((0?[13578])|(1[02]))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\-\/\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\-\/\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\s(((0?[0-9])|([1-2][0-3]))\:([0-5]?[0-9])((\s)|(\:([0-5]?[0-9])))))?$");
return dateRegex.IsMatch(strDate);
}
/// <summary>
/// 昵称规则
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsNickName(string str)
{
Regex oReg = new Regex(@"^([\u4e00-\u9fa5]+|[a-zA-Z0-9]+)$");
if(oReg.IsMatch(str))
{
return true;
}
return false;
}
/// <summary>
/// 常用过滤字符
///防止注入攻击
/// </summary>
public static string IsValidSting(string strIn)
{
str = strIn.Replace("'","<@>1000");
str = str.Replace(",","<@>1001");
str = str.Replace("\"","<@>1002");
str = str.Replace("UPDATE","<@>1003");
str = str.Replace("update","<@>1004");
str = str.Replace("DELETE","<@>1005");
str = str.Replace("delete","<@>1006");
str = str.Replace("SELECT","<@>1007");
str = str.Replace("select","<@>1008");
return str;
}
/// <summary>
/// 常用还原字符
/// </summary>
public static string IsValidToSting(string strIn)
{
str = strIn.Replace("<@>1000","'");
str = str.Replace("<@>1001",",");
str = str.Replace("<@>1002","\"");
str = str.Replace("<@>1003","UPDATE");
str = str.Replace("<@>1004","update");
str = str.Replace("<@>1005","DELETE");
str = str.Replace("<@>1006","delete");
str = str.Replace("<@>1007","SELECT");
str = str.Replace("<@>1008","select");
return str;
}
/// <summary>
/// 有效密码检验
/// </summary>
public static bool IsValidPassword(string strIn)
{
if (strIn.Length<6 || strIn.Length>20)
{
return false;
}
else
{
return Regex.IsMatch(strIn, "^[A-Za-z0-9]+$");
}
}
/// <summary>
/// 有效电子邮件格式检验
/// </summary>
public static bool IsValidEmail(string strIn)
{
return Regex.IsMatch(strIn, @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
}
/// <summary>
/// 有效URL检验
/// </summary>
public static bool IsValidUrl(string strIn)
{
return Regex.IsMatch(strIn, @"^http://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?$");
}
/// <summary>
/// 有效日期检验 如2005-9-2
/// 基本上把闰年和2月等的情况都考虑进去了
/// </summary>
public static bool IsValidDate(string strIn)
{
return Regex.IsMatch(strIn, @"^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-))$");
}
/// <summary>
/// 有效长日期检验 如2005-9-2 13:20:37
/// 基本上把闰年和2月等的情况都考虑进去了
/// </summary>
public static bool IsValidDateLong(string strIn)
{
return Regex.IsMatch(strIn, @"^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-)) (20|21|22|23|[0-1]?\d):[0-5]?\d:[0-5]?\d$");
}
/// <summary>
/// 有效身份证检验
/// </summary>
public static bool IsValidIDCard(string strIn)
{
return Regex.IsMatch(strIn,@"^(\d{18}|\d{15})+$");
}
/// <summary>
/// 有效邮政编码检验
/// </summary>
public static bool IsValidPcode(string strIn)
{
return Regex.IsMatch(strIn,@"^(\d{6})+$");
}
/// <summary>
/// 有效电话检验
/// 如0599-1234567-0000 或 0599-1234567 等
/// </summary>
public static bool IsValidTel(string strIn)
{
return Regex.IsMatch(strIn,@"^(((\d{3}|\d{4})-(\d{7}|\d{8}))|((\d{3}|\d{4})-(\d{7}|\d{8})-(\d{4})))$");
}
/// <summary>
/// 有效整数检验
/// </summary>
public static bool IsValidInt(string strIn)
{
//[0-9]也可
return Regex.IsMatch(strIn, "^(\\d)+$");
}
/// <summary>
/// 有效英文检验
/// </summary>
public static bool IsValidEnglish(string strIn)
{
return Regex.IsMatch(strIn, "^([A-Za-z])+$");
}
/// <summary>
/// 有效中文检验
/// </summary>
public static bool IsValidChinese(string strIn)
{
return Regex.IsMatch(strIn, "^([\u4e00-\u9fa5])+$");
}
/// <summary>
/// 有效英文-数字检验
/// </summary>
public static bool IsValidEnglishInt(string strIn)
{
//[A-Za-z|0-9]也可以
return Regex.IsMatch(strIn, "^[A-Za-z0-9]+$");
}
/// <summary>
/// 有效中文-数字检验
/// </summary>
public static bool IsValidChineseInt(string strIn)
{
return Regex.IsMatch(strIn, "^[0-9\u4e00-\u9fa5]+$");
}
/// <summary>
/// 有效中文-英文-数字检验
/// </summary>
public static bool IsValidChineseEnglishInt(string strIn)
{
return Regex.IsMatch(strIn, "^[A-Za-z0-9\u4e00-\u9fa5]+$");
}
/// <summary>
/// 显示成功信息
/// </summary>
/// <param name="SucMessage">成功提示信息</param>
/// <param name="type">类型，1 父窗口刷新；2 只显示成功信息；3 显示成功信息后 关闭当前窗口；4 刷新父窗口；</param>
/// <returns>返回string类型成功信息</returns>
public static string ShowSuc(string SucMessage,int type)
{
string temp_str;
switch(type)
{
case 1:
temp_str = "<script>alert(\"" + SucMessage + "！\");window.parent.location.reload();</script>";
break;
case 2:
temp_str = "<script>alert(\"" + SucMessage + "！\");</script>";
break;
case 3:
temp_str = "<script>alert(\"" + SucMessage + "！\");window.close();</script>";
break;
case 4:
temp_str ="<script>window.parent.location.reload();</script>";
break;
default:
temp_str = "<script>alert(\"" + SucMessage + "！\");window.close();window.opener.location.reload();</script>";
break;
}
return temp_str;
}
/// <summary>
/// 过滤非法字符
/// </summary>
/// <param name="strString">将要过滤的字符串</param>
/// <returns>返回过滤以后的字符</returns>
public static string FiltForbidStr(string strString)
{
string tempstr="";
tempstr=strString;
if (tempstr!=null && tempstr!="")
{
tempstr = tempstr.Replace("'","''");
}
return tempstr;
}
/// <summary>
/// 过滤字符
/// </summary>
/// <param name="strString"></param>
/// <returns></returns>
public static string FiltRemoteForbidStr(string strString)
{
string tempstr="";
tempstr=strString;
if (tempstr!=null && tempstr!="")
{
tempstr = tempstr.Replace("'","''");
//tempstr = tempstr.Replace("|","");
//tempstr = tempstr.Replace("[","");
//tempstr = tempstr.Replace("(","");
//tempstr = tempstr.Replace(";","");
//tempstr = tempstr.Replace("%","");
//tempstr = tempstr.Replace("-","");
//tempstr = tempstr.Replace("=","");
//tempstr = tempstr.Replace(".","");
}
return tempstr;
}
/// <summary>
/// 检测是否含有非法字符
/// </summary>
/// <param name="strString"></param>
/// <returns></returns>
public static bool CheckBidStr(string strString)
{
bool outValue=false;
if(strString!=null&&strString.Length>0)
{
string[] bidStrlist = new string[20];
bidStrlist[0]="'";
bidStrlist[1]=";";
bidStrlist[2]=":";
bidStrlist[3]="%";
bidStrlist[4]="@";
bidStrlist[5]="&";
bidStrlist[6]="#";
bidStrlist[7]="\"";
bidStrlist[8]="net user";
bidStrlist[9]="exec";
bidStrlist[10]="net localgroup";
bidStrlist[11]="select";
bidStrlist[12]="asc";
bidStrlist[13]="char";
bidStrlist[14]="mid";
bidStrlist[15]="insert";
bidStrlist[16]="delete";
bidStrlist[17]="drop";
bidStrlist[18]="truncate";
bidStrlist[19]="xp_cmdshell";
string tempStr = strString.ToLower();
for(int i=0;i<bidStrlist.Length;i++)
{
if(tempStr.IndexOf(bidStrlist[i])!=-1)
{
outValue=true;
break;
}
}
}
return outValue;
}
/// <summary>
/// 取汉字的长度
/// </summary>
/// <param name="strString">原字符串</param>
/// <param name="strLen">取汉字个数</param>
/// <returns>截取后的字符串</returns>
public static string LeftTrue(string strString,int strLenth)
{
if ( strString != null )
{
int i, c, t;
char[] charArr = strString.ToCharArray();
if( charArr.Length <= strLenth )
{
return strString;
}
else
{
t = 0;
for( i = 0; i < charArr.Length; i++ )
{
c = charArr[i];
if( c < 0 )
c += 65536;
if( c > 255 )
t += 2;
else
t++;
if( t > strLenth * 2 )
break;
}
return new string( charArr, 0, i );
}
}
else
{
return strString;
}
}
/// <summary>
/// Hash编码
/// </summary>
/// <param name="strString">将要编码的字符串</param>
/// <param name="strFormat">编码格式(MD5或者SHA1)</param>
/// <returns></returns>
public static string EncryptStr(string strString, string strFormat)
{
if (strString.Length!=0)
{
switch(strFormat.ToUpper())
{
case "SHA1":
return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(strString,"SHA1");
case "MD5":
return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(strString,"MD5");
default:
return strString;
}
}
else
{
return strString;
}
}
/// <summary>
/// base64编码
/// </summary>
/// <param name="strString">将要编码的字符串</param>
/// <returns>编码后的字符串</returns>
public static string EnBase64(string strString)
{
if (strString.Length!=0)
{
//System.Text.Encoding ens = System.Text.Encoding.GetEncoding(54936);
return Convert.ToBase64String( System.Text.Encoding.UTF8.GetBytes(strString) );
}
return strString;
}
/// <summary>
/// base64解码
/// </summary>
/// <param name="strString">简要解码的字符串</param>
/// <returns>解码后的字符串</returns>
public static string DeBase64(string strString)
{
if (strString.Length!=0)
{
//System.Text.Encoding ens = System.Text.Encoding.GetEncoding(54936);
return System.Text.Encoding.UTF8.GetString(Convert.FromBase64String(strString));
}
return strString;
}
/// <summary>
/// 格式化字符串
/// </summary>
/// <param name="strString">将要格式化的字符串</param>
/// <returns>格式化后的字符串</returns>
public static string KeepFormat(string strString)
{
string str;
str = strString;
if(str!=null)
{
str = str.Replace(" ","");
str = str.Replace("<br>","");
str = str.Replace(Microsoft.VisualBasic.Strings.Chr(9).ToString(),"");
str = str.Replace(Microsoft.VisualBasic.Strings.Chr(34).ToString(),"");
str = str.Replace(Microsoft.VisualBasic.Strings.Chr(39).ToString(),"");
str = str.Replace(Microsoft.VisualBasic.Strings.Chr(13).ToString()+Microsoft.VisualBasic.Strings.Chr(10).ToString(),"");
}
return str;
}
/// <summary>
/// 过滤字符串
/// </summary>
/// <param name="strString">将要过滤的字符串</param>
/// <returns>过滤后的字符串</returns>
public static string Keep(string strString)
{
string str;
str = strString;
if(str!=null)
{
str = str.Replace("'","''");
str = str.Replace(" "," ");
str = str.Replace("<","<");
str = str.Replace(">",">");
str = str.Replace("|","");
str = str.Replace(Microsoft.VisualBasic.Strings.Chr(9).ToString()," ");
str = str.Replace(Microsoft.VisualBasic.Strings.Chr(34).ToString(),""");
str = str.Replace(Microsoft.VisualBasic.Strings.Chr(39).ToString(),"'");
str = str.Replace(Microsoft.VisualBasic.Strings.Chr(13).ToString()+Microsoft.VisualBasic.Strings.Chr(10).ToString(),"<br>");
//str = str.Replace(Microsoft.VisualBasic.Strings.Chr(10).ToString(),"");
}
return str;
}
/// <summary>
/// 过滤js字符串
/// </summary>
/// <param name="strString">将要过滤js的字符串</param>
/// <returns>过滤js后的字符串</returns>
public static string Fixjs(string strString)
{
string str;
str = strString;
if(str!=null)
{
str = str.Replace("\\","\\\\");
str = str.Replace(((char)34).ToString(),"\\\"");
str = str.Replace(((char)39).ToString(),"\\'");
str = str.Replace(((char)13).ToString(),"\\n");
str = str.Replace(((char)10).ToString(),"\\r");
str = str.Replace("'","'");
}
return str;
}
public static string ToHtml(string str)
{
str = str.Replace(">", ">");
str = str.Replace("<", "<");
str = str.Replace(" ", " ");
str = str.Replace("\"",""");
//str = str.Replace("", " ");
//str = str.Replace("", """);
//str = str.Replace("", "'");
str = str.Replace("\n", "<br>");
str = str.Replace("\n\r", "<br>");
return str;
}
/// <summary>
/// 转换js字符串
/// </summary>
/// <param name="strString">将要转换js的字符串</param>
/// <returns>转换js后的字符串</returns>
public static string EnFixjs(string strString)
{
string str;
str = strString;
if(str!=null)
{
str = str.Replace("\\\\","\\");
str = str.Replace("\\\"",((char)34).ToString());
str = str.Replace("\\'",((char)39).ToString());
str = str.Replace("\\n",((char)13).ToString());
str = str.Replace("\\r",((char)10).ToString());
str = str.Replace("'","'");
}
return str;
}
/// <summary>
/// 判断汉字的长度
/// </summary>
/// <param name="strString">原字符串</param>
/// <param name="maxLenth">长度</param>
/// <returns>字符串长度</returns>
public static bool MaxLenth(string strString,int maxLenth)
{
if(strString!=null)
{
if(strString.Length<=maxLenth/2)
{
return false;
}
else
{
int t,i,c;
t = 0;
for(i=0;i<strString.Length;i++)
{
c =Microsoft.VisualBasic.Strings.Asc(strString.Substring(i,1));
if(c < 0)
{
t = t + 2;
}
else
{
t = t + 1;
}
}
if(t > maxLenth)
{
return true;
}
else
{
return false;
}
}
}
return true;
}
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