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using System.Text;
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using System.Text.RegularExpressions;
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namespace RS.Common
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{
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/// <summary>
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/// 各种输入格式验证辅助类
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/// </summary>
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public class ValidateUtil
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{
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private static Regex RegNumber = new Regex("^[0-9]+$");
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private static Regex RegNumberSign = new Regex("^[+-]?[0-9]+$");
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private static Regex RegDecimal = new Regex("^[0-9]+[.]?[0-9]+$");
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private static Regex RegDecimalSign = new Regex("^[+-]?[0-9]+[.]?[0-9]+$"); //等价于^[+-]?\d+[.]?\d+$
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private static Regex RegEmail = new Regex(@"^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$");//w 英文字母或数字的字符串，和 [a-zA-Z0-9] 语法一样
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private static Regex RegCHZN = new Regex("[\u4e00-\u9fa5]");
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#region 用户名密码格式
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/// <summary>
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/// 返回字符串真实长度, 1个汉字长度为2
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/// </summary>
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/// <returns>字符长度</returns>
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public static int GetStringLength(string stringValue)
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{
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return Encoding.Default.GetBytes(stringValue).Length;
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}
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/// <summary>
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/// 检测用户名格式是否有效
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/// </summary>
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/// <param name="userName"></param>
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/// <returns></returns>
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public static bool IsValidUserName(string userName)
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{
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int userNameLength = GetStringLength(userName);
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if (userNameLength >= 4 && userNameLength <= 20 && Regex.IsMatch(userName, @"^([\u4e00-\u9fa5A-Za-z_0-9]{0,})$"))
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{ // 判断用户名的长度（4-20个字符）及内容（只能是汉字、字母、下划线、数字）是否合法
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return true;
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 密码有效性
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/// </summary>
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/// <param name="password"></param>
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/// <returns></returns>
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public static bool IsValidPassword(string password)
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{
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return Regex.IsMatch(password, @"^[A-Za-z_0-9]{6,16}$");
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}
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#endregion 用户名密码格式
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#region 数字字符串检查
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/// <summary>
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/// int有效性
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/// </summary>
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/// <param name="val"></param>
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/// <returns></returns>
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static public bool IsValidInt(string val)
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{
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return Regex.IsMatch(val, @"^[1-9]\d*\.?[0]*$");
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}
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/// <summary>
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/// 是否数字字符串
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/// </summary>
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/// <param name="inputData">输入字符串</param>
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/// <returns></returns>
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public static bool IsNumber(string inputData)
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{
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Match m = RegNumber.Match(inputData);
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return m.Success;
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}
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/// <summary>
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/// 是否数字字符串 可带正负号
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/// </summary>
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/// <param name="inputData">输入字符串</param>
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/// <returns></returns>
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public static bool IsNumberSign(string inputData)
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{
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Match m = RegNumberSign.Match(inputData);
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return m.Success;
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}
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/// <summary>
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/// 是否是浮点数
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/// </summary>
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/// <param name="inputData">输入字符串</param>
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/// <returns></returns>
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public static bool IsDecimal(string inputData)
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{
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Match m = RegDecimal.Match(inputData);
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return m.Success;
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}
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/// <summary>
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/// 是否是浮点数 可带正负号
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/// </summary>
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/// <param name="inputData">输入字符串</param>
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/// <returns></returns>
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public static bool IsDecimalSign(string inputData)
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{
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Match m = RegDecimalSign.Match(inputData);
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return m.Success;
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}
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#endregion 数字字符串检查
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#region 中文检测
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/// <summary>
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/// 检测是否有中文字符
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/// </summary>
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/// <param name="inputData"></param>
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/// <returns></returns>
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public static bool IsHasCHZN(string inputData)
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{
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Match m = RegCHZN.Match(inputData);
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return m.Success;
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}
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/// <summary>
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/// 检测含有中文字符串的实际长度
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/// </summary>
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/// <param name="str">字符串</param>
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public static int GetCHZNLength(string inputData)
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{
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System.Text.ASCIIEncoding n = new System.Text.ASCIIEncoding();
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byte[] bytes = n.GetBytes(inputData);
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int length = 0; // l 为字符串之实际长度
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for (int i = 0; i <= bytes.Length - 1; i++)
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{
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if (bytes[i] == 63) //判断是否为汉字或全脚符号
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{
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length++;
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}
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length++;
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}
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return length;
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}
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#endregion 中文检测
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#region 常用格式
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/// <summary>
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/// 验证身份证是否合法 15 和 18位两种
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/// </summary>
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/// <param name="idCard">要验证的身份证</param>
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public static bool IsIdCard(string idCard)
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{
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if (string.IsNullOrEmpty(idCard))
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{
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return false;
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}
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if (idCard.Length == 15)
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{
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return Regex.IsMatch(idCard, @"^[1-9]\d{7}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}$");
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}
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else if (idCard.Length == 18)
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{
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return Regex.IsMatch(idCard, @"^[1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])((\d{4})|\d{3}[A-Z])$", RegexOptions.IgnoreCase);
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}
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else
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{
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return false;
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}
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}
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/// <summary>
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/// 是否是邮件地址
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/// </summary>
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/// <param name="inputData">输入字符串</param>
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/// <returns></returns>
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public static bool IsEmail(string inputData)
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{
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Match m = RegEmail.Match(inputData);
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return m.Success;
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}
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/// <summary>
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/// 邮编有效性
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/// </summary>
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/// <param name="zip"></param>
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/// <returns></returns>
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public static bool IsValidZip(string zip)
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{
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Regex rx = new Regex(@"^\d{6}$", RegexOptions.None);
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Match m = rx.Match(zip);
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return m.Success;
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}
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/// <summary>
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/// 固定电话有效性
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/// </summary>
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/// <param name="phone"></param>
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/// <returns></returns>
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public static bool IsValidPhone(string phone)
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{
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Regex rx = new Regex(@"^(\(\d{3,4}\)|\d{3,4}-)?\d{7,8}$", RegexOptions.None);
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Match m = rx.Match(phone);
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return m.Success;
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}
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/// <summary>
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/// 手机有效性
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/// </summary>
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/// <param name="strMobile"></param>
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/// <returns></returns>
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public static bool IsValidMobile(string mobile)
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{
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Regex rx = new Regex(@"^(13|15)\d{9}$", RegexOptions.None);
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Match m = rx.Match(mobile);
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return m.Success;
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}
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/// <summary>
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/// 电话有效性（固话和手机 ）
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/// </summary>
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/// <param name="strVla"></param>
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/// <returns></returns>
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public static bool IsValidPhoneAndMobile(string number)
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{
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Regex rx = new Regex(@"^(\(\d{3,4}\)|\d{3,4}-)?\d{7,8}$|^(13|15)\d{9}$", RegexOptions.None);
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Match m = rx.Match(number);
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return m.Success;
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}
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/// <summary>
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/// Url有效性
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/// </summary>
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/// <param name="url"></param>
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/// <returns></returns>
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static public bool IsValidURL(string url)
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{
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return Regex.IsMatch(url, @"^(http|https|ftp)\://[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(:[a-zA-Z0-9]*)?/?([a-zA-Z0-9\-\._\?\,\'/\\\+&%\$#\=~])*[^\.\,\)\(\s]$");
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}
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/// <summary>
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/// IP有效性
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/// </summary>
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/// <param name="ip"></param>
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/// <returns></returns>
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public static bool IsValidIP(string ip)
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{
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return Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$");
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}
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/// <summary>
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/// domain 有效性
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/// </summary>
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/// <param name="host">域名</param>
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/// <returns></returns>
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public static bool IsValidDomain(string host)
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{
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Regex r = new Regex(@"^\d+$");
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if (host.IndexOf(".") == -1)
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{
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return false;
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}
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return r.IsMatch(host.Replace(".", string.Empty)) ? false : true;
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}
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/// <summary>
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/// 判断是否为base64字符串
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public static bool IsBase64String(string str)
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{
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return Regex.IsMatch(str, @"[A-Za-z0-9\+\/\=]");
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}
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/// <summary>
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/// 验证字符串是否是GUID
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/// </summary>
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/// <param name="guid">字符串</param>
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/// <returns></returns>
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public static bool IsGuid(string guid)
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{
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if (string.IsNullOrEmpty(guid))
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return false;
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return Regex.IsMatch(guid, "[A-F0-9]{8}(-[A-F0-9]{4}){3}-[A-F0-9]{12}|[A-F0-9]{32}", RegexOptions.IgnoreCase);
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}
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#endregion 常用格式
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#region 日期检查
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/// <summary>
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/// 判断输入的字符是否为日期
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/// </summary>
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/// <param name="strValue"></param>
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/// <returns></returns>
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public static bool IsDate(string strValue)
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{
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return Regex.IsMatch(strValue, @"^((\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]))))))");
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}
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/// <summary>
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/// 判断输入的字符是否为日期,如2004-07-12 14:25|||1900-01-01 00:00|||9999-12-31 23:59
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/// </summary>
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/// <param name="strValue"></param>
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/// <returns></returns>
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public static bool IsDateHourMinute(string strValue)
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{
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return Regex.IsMatch(strValue, @"^(19[0-9]{2}|[2-9][0-9]{3})-((0(1|3|5|7|8)|10|12)-(0[1-9]|1[0-9]|2[0-9]|3[0-1])|(0(4|6|9)|11)-(0[1-9]|1[0-9]|2[0-9]|30)|(02)-(0[1-9]|1[0-9]|2[0-9]))\x20(0[0-9]|1[0-9]|2[0-3])(:[0-5][0-9]){1}$");
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}
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#endregion 日期检查
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#region 其他
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/// <summary>
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/// 检查字符串最大长度，返回指定长度的串
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/// </summary>
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/// <param name="sqlInput">输入字符串</param>
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/// <param name="maxLength">最大长度</param>
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/// <returns></returns>
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public static string CheckMathLength(string inputData, int maxLength)
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{
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if (inputData != null && inputData != string.Empty)
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{
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inputData = inputData.Trim();
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if (inputData.Length > maxLength)//按最大长度截取字符串
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{
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inputData = inputData.Substring(0, maxLength);
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}
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}
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return inputData;
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}
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/// <summary>
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/// 转换成 HTML code
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/// </summary>
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/// <param name="str">string</param>
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/// <returns>string</returns>
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public static string Encode(string str)
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{
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str = str.Replace("&", "&");
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str = str.Replace("'", "''");
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str = str.Replace("\"", """);
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str = str.Replace(" ", " ");
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str = str.Replace("<", "<");
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str = str.Replace(">", ">");
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str = str.Replace("\n", "<br>");
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return str;
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}
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/// <summary>
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///解析html成 普通文本
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/// </summary>
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/// <param name="str">string</param>
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/// <returns>string</returns>
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public static string Decode(string str)
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{
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str = str.Replace("<br>", "\n");
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str = str.Replace(">", ">");
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str = str.Replace("<", "<");
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str = str.Replace(" ", " ");
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str = str.Replace(""", "\"");
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return str;
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}
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#endregion 其他
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}
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} |
