779 lines
24 KiB
C#
779 lines
24 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Globalization;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Web;
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using TinyPinyin.Core;
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namespace Hncore.Infrastructure.Extension
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{
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public static class StringExtension
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{
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#region Url、Html编码
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[DebuggerStepThrough]
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public static string UrlEncode(this string target)
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{
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return HttpUtility.UrlEncode(target);
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}
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[DebuggerStepThrough]
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public static string UrlEncode(this string target, Encoding encoding)
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{
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return HttpUtility.UrlEncode(target, encoding);
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}
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[DebuggerStepThrough]
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public static string UrlDecode(this string target)
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{
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return HttpUtility.UrlDecode(target);
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}
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[DebuggerStepThrough]
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public static string UrlDecode(this string target, Encoding encoding)
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{
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return HttpUtility.UrlDecode(target, encoding);
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}
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[DebuggerStepThrough]
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public static string AttributeEncode(this string target)
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{
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return HttpUtility.HtmlAttributeEncode(target);
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}
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[DebuggerStepThrough]
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public static string HtmlEncode(this string target)
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{
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return HttpUtility.HtmlEncode(target);
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}
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[DebuggerStepThrough]
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public static string HtmlDecode(this string target)
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{
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return HttpUtility.HtmlDecode(target);
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}
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#endregion
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#region Unicode编码
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/// <summary>
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/// 汉字转换为Unicode编码
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/// </summary>
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/// <param name="str">要编码的汉字字符串</param>
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/// <returns>Unicode编码的的字符串</returns>
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public static string ToUnicode(this string str)
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{
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if (string.IsNullOrEmpty(str))
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{
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return str;
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}
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StringBuilder unicode = new StringBuilder();
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foreach (char chr in str)
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{
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// Get the integral value of the character.
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int value = Convert.ToInt32(chr);
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// Convert the decimal value to a hexadecimal value in string form.
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string hexOutput = String.Format("{0:x}", value);
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unicode.Append("\\u" + hexOutput);
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}
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return unicode.ToString();
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}
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/// <summary>
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/// 将Unicode编码转换为汉字字符串
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/// </summary>
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/// <param name="str">Unicode编码字符串</param>
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/// <returns>汉字字符串</returns>
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public static string FromUnicode(this string unicode)
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{
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if (string.IsNullOrEmpty(unicode))
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{
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return unicode;
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}
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StringBuilder str = new StringBuilder();
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unicode = unicode.Replace("\\u", "_");
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string[] hex = unicode.Split('_');
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for (int i = 1; i < hex.Length; i++)
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{
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int data = Convert.ToInt32(hex[i].ToString(), 16);
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str.Append((char) data);
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}
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return str.ToString();
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}
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#endregion
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#region 清除脚本
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/// <summary>
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/// 清除脚本
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/// </summary>
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/// <param name="Htmlstring"></param>
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/// <returns></returns>
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public static string NoHTML(this string Htmlstring)
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{
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//删除脚本
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Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);
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//删除HTML
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Htmlstring = Regex.Replace(Htmlstring, @"<.*?>|&.{4,5}", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"([\r\n])[\s]+", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase);
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Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase);
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Htmlstring.Replace("<", "");
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Htmlstring.Replace(">", "");
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Htmlstring.Replace("\r\n", "");
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Htmlstring = Htmlstring.HtmlEncode().Trim();
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return Htmlstring;
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}
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#endregion
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#region 清楚小数点后的0
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/// <summary>
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/// 清楚小数点后的0
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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 string DecimalToInt(this string str)
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{
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if (string.IsNullOrEmpty(str))
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return "0";
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str = float.Parse(str).ToString("0.00");
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if (Int32.Parse(str.Substring(str.IndexOf(".") + 1)) == 0)
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{
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return str.Substring(0, str.IndexOf("."));
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}
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return str;
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}
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public static string ToMoney(this decimal num)
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{
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return num.ToString("0.00");
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}
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#endregion
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#region 转换成百分比
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/// <summary>
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/// 转换百分比
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/// </summary>
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/// <param name="num"></param>
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/// <returns></returns>
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public static string ToP2(this decimal num)
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{
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string str = num.ToString("0.00").TrimEnd('0');
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if (str.EndsWith("."))
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{
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str = str.Replace(".", "");
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}
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return str + "%";
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}
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#endregion
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#region 汉字转拼音缩写
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/// <summary>
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/// 汉字转拼音缩写
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/// <returns>拼音缩写</returns>
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public static string GetPYString(this string str)
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{
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string tempStr = "";
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foreach (char c in str)
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{
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if ((int) c >= 33 && (int) c <= 126)
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{
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//字母和符号原样保留
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tempStr += c.ToString();
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}
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else
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{
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//累加拼音声母
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tempStr += PinyinHelper.GetPinyin(c).ToCharArray()[0];
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}
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}
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return tempStr;
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}
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#endregion
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#region 清楚字符串中所有空格，包括\r\n\t
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/// <summary>
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/// 清楚字符串中所有空格，包括\r\n\t
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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 string CleanSpace(this string str)
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{
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if (string.IsNullOrEmpty(str))
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return string.Empty;
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return Regex.Replace(str, @"\s", "");
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}
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#endregion
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#region 反转义
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/// <summary>
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/// 反转义
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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 string Unescape(this string str)
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{
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return System.Text.RegularExpressions.Regex.Unescape(str);
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}
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#endregion
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#region 转换成数字
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public static int ToInt(this string str)
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{
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int i = 0;
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int.TryParse(str, out i);
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return i;
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}
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public static decimal ToDecimal(this string str)
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{
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decimal i = 0;
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decimal.TryParse(str, out i);
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return i;
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}
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public static int ToInt(this string str, int defaultnum = 0)
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{
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int i;
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bool flag = Int32.TryParse(str, out i);
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if (flag)
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{
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return i;
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}
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else
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{
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return defaultnum;
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}
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}
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/// <summary>
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/// 转为double类型
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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 double ToDouble(this string str)
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{
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double result = 0;
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double.TryParse(str, out result);
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return result;
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}
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#endregion
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#region 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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/// 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(this string str)
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{
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return Encoding.Default.GetBytes(str).Length;
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}
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#endregion
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#region 从字符串的指定位置截取指定长度的子字符串
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/// <summary>
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/// 从字符串的指定位置截取指定长度的子字符串
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/// </summary>
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/// <param name="str">原字符串</param>
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/// <param name="startIndex">子字符串的起始位置</param>
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/// <param name="length">子字符串的长度</param>
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/// <returns>子字符串</returns>
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public static string CutString(this string str, int startIndex, int length)
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{
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if (string.IsNullOrEmpty(str))
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{
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return "";
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}
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if (startIndex >= 0)
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{
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if (length < 0)
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{
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length = length * -1;
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if (startIndex - length < 0)
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{
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length = startIndex;
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startIndex = 0;
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}
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else
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{
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startIndex = startIndex - length;
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}
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}
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if (startIndex > str.Length)
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{
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return "";
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}
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}
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else
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{
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if (length < 0)
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{
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return "";
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}
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else
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{
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if (length + startIndex > 0)
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{
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length = length + startIndex;
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startIndex = 0;
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}
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else
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{
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return "";
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}
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}
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}
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if (str.Length - startIndex < length)
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{
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length = str.Length - startIndex;
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}
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return str.Substring(startIndex, length);
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}
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#endregion
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#region 判断文件名是否为浏览器可以直接显示的图片文件名
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/// <summary>
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/// 判断文件名是否为浏览器可以直接显示的图片文件名
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/// </summary>
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/// <param name="filename">文件名</param>
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/// <returns>是否可以直接显示</returns>
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public static bool IsImgFilename(this string filename)
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{
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filename = filename.Trim();
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if (filename.EndsWith(".") || filename.IndexOf(".") == -1)
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{
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return false;
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}
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string extname = filename.Substring(filename.LastIndexOf(".") + 1).ToLower();
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return (extname == "jpg" || extname == "jpeg" || extname == "png" || extname == "bmp" || extname == "gif");
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}
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#endregion
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#region 取指定长度的字符串
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public static string GetUnicodeSubString(this string str, int len, string p_TailString)
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{
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string result = string.Empty; // 最终返回的结果
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int byteLen = System.Text.Encoding.Default.GetByteCount(str); // 单字节字符长度
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int charLen = str.Length; // 把字符平等对待时的字符串长度
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int byteCount = 0; // 记录读取进度
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int pos = 0; // 记录截取位置
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if (byteLen > len)
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{
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for (int i = 0; i < charLen; i++)
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{
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if (Convert.ToInt32(str.ToCharArray()[i]) > 255) // 按中文字符计算加2
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byteCount += 2;
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else // 按英文字符计算加1
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byteCount += 1;
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if (byteCount > len) // 超出时只记下上一个有效位置
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{
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pos = i;
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break;
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}
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else if (byteCount == len) // 记下当前位置
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{
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pos = i + 1;
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break;
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}
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}
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if (pos >= 0)
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result = str.Substring(0, pos) + p_TailString;
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}
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else
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result = str;
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return result;
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}
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/// <summary>
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/// 取指定长度的字符串
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/// </summary>
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/// <param name="p_SrcString">要检查的字符串</param>
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/// <param name="p_StartIndex">起始位置</param>
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/// <param name="p_Length">指定长度</param>
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/// <param name="p_TailString">用于替换的字符串</param>
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/// <returns>截取后的字符串</returns>
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public static string GetSubString(this string p_SrcString, int p_StartIndex, int p_Length, string p_TailString)
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{
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string myResult = p_SrcString;
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Byte[] bComments = Encoding.UTF8.GetBytes(p_SrcString);
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foreach (char c in Encoding.UTF8.GetChars(bComments))
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{
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//当是日文或韩文时(注:中文的范围:\u4e00 - \u9fa5, 日文在\u0800 - \u4e00, 韩文为\xAC00-\xD7A3)
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if ((c > '\u0800' && c < '\u4e00') || (c > '\xAC00' && c < '\xD7A3'))
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{
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//if (System.Text.RegularExpressions.Regex.IsMatch(p_SrcString, "[\u0800-\u4e00]+") || System.Text.RegularExpressions.Regex.IsMatch(p_SrcString, "[\xAC00-\xD7A3]+"))
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//当截取的起始位置超出字段串长度时
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if (p_StartIndex >= p_SrcString.Length)
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{
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return "";
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}
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else
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{
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return p_SrcString.Substring(p_StartIndex,
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((p_Length + p_StartIndex) > p_SrcString.Length)
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? (p_SrcString.Length - p_StartIndex)
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: p_Length);
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}
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}
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}
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if (p_Length >= 0)
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{
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byte[] bsSrcString = Encoding.Default.GetBytes(p_SrcString);
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//当字符串长度大于起始位置
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if (bsSrcString.Length > p_StartIndex)
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{
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int p_EndIndex = bsSrcString.Length;
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//当要截取的长度在字符串的有效长度范围内
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if (bsSrcString.Length > (p_StartIndex + p_Length))
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{
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p_EndIndex = p_Length + p_StartIndex;
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}
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else
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{
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//当不在有效范围内时,只取到字符串的结尾
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p_Length = bsSrcString.Length - p_StartIndex;
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p_TailString = "";
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}
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int nRealLength = p_Length;
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int[] anResultFlag = new int[p_Length];
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byte[] bsResult = null;
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int nFlag = 0;
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for (int i = p_StartIndex; i < p_EndIndex; i++)
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{
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if (bsSrcString[i] > 127)
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{
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nFlag++;
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if (nFlag == 3)
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{
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nFlag = 1;
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}
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}
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else
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{
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nFlag = 0;
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}
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anResultFlag[i] = nFlag;
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}
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if ((bsSrcString[p_EndIndex - 1] > 127) && (anResultFlag[p_Length - 1] == 1))
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{
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nRealLength = p_Length + 1;
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}
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bsResult = new byte[nRealLength];
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Array.Copy(bsSrcString, p_StartIndex, bsResult, 0, nRealLength);
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myResult = Encoding.Default.GetString(bsResult);
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myResult = myResult + p_TailString;
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}
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}
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return myResult;
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}
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#endregion
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#region 自定义的替换字符串函数
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/// <summary>
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/// 自定义的替换字符串函数
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/// </summary>
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public static string ReplaceString(string SourceString, string SearchString, string ReplaceString,
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bool IsCaseInsensetive)
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{
|
||
return Regex.Replace(SourceString, Regex.Escape(SearchString), ReplaceString,
|
||
IsCaseInsensetive ? RegexOptions.IgnoreCase : RegexOptions.None);
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 检测是否符合email格式
|
||
|
||
/// <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(this string strEmail)
|
||
{
|
||
return Regex.IsMatch(strEmail,
|
||
@"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 检测是否是正确的Url
|
||
|
||
/// <summary>
|
||
/// 检测是否是正确的Url
|
||
/// </summary>
|
||
/// <param name="strUrl">要验证的Url</param>
|
||
/// <returns>判断结果</returns>
|
||
public static bool IsURL(this string strUrl)
|
||
{
|
||
return Regex.IsMatch(strUrl,
|
||
@"^(http|https)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&%\$\-]+)*@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{1,10}))(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\?\'\\\+&%\$#\=~_\-]+))*$");
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 是否为ip
|
||
|
||
/// <summary>
|
||
/// 是否为ip
|
||
/// </summary>
|
||
/// <param name="ip"></param>
|
||
/// <returns></returns>
|
||
public static bool IsIP(this string ip)
|
||
{
|
||
return Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$");
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 是否为手机号
|
||
|
||
/// <summary>
|
||
/// 是否为手机号
|
||
/// </summary>
|
||
/// <param name="str"></param>
|
||
/// <returns></returns>
|
||
public static bool IsMobilePhone(this string str)
|
||
{
|
||
return Regex.IsMatch(str, @"^0?(13[0-9]|15[0-9]|166|17[0-9]|18[0-9]|19[8-9]|14[5-7])[0-9]{8}$");
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 是否为身份证号
|
||
|
||
/// <summary>
|
||
/// 是否为身份证号
|
||
/// </summary>
|
||
/// <param name="str"></param>
|
||
/// <returns></returns>
|
||
public static bool IsIdCard(this string str)
|
||
{
|
||
return Regex.IsMatch(str, @"(^\d{15}$)|(^\d{17}([0-9]|X)$)");
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 是否为小数
|
||
|
||
/// <summary>
|
||
/// 是否为小数
|
||
/// </summary>
|
||
/// <param name="str"></param>
|
||
/// <returns></returns>
|
||
public static bool IsPositiveNumber(this string str)
|
||
{
|
||
return Regex.IsMatch(str, @"^[1-9]\d*\.\d*|0\.\d*[1-9]\d*$");
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 是否为数字
|
||
|
||
/// <summary>
|
||
/// 是否为数字
|
||
/// </summary>
|
||
/// <param name="str"></param>
|
||
/// <returns></returns>
|
||
public static bool IsNumber(this string str)
|
||
{
|
||
return Regex.IsMatch(str, @"^[+-]?\d*[.]?\d*$");
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 字符串转化为泛型集合
|
||
|
||
/// <summary>
|
||
/// 字符串转化为泛型集合
|
||
/// </summary>
|
||
/// <param name="str">字符串</param>
|
||
/// <param name="splitstr">要分割的字符</param>
|
||
/// <returns></returns>
|
||
public static List<T> StrToList<T>(this string str, char splitstr)
|
||
{
|
||
List<T> list = new List<T>();
|
||
if (string.IsNullOrEmpty(str))
|
||
{
|
||
return list;
|
||
}
|
||
|
||
string[] strarray = str.Split(new Char[] {splitstr}, StringSplitOptions.RemoveEmptyEntries);
|
||
|
||
foreach (string s in strarray)
|
||
{
|
||
if (s != "")
|
||
list.Add((T) Convert.ChangeType(s, typeof(T)));
|
||
}
|
||
|
||
return list;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 字符串转化为泛型集合
|
||
/// </summary>
|
||
/// <param name="str">字符串</param>
|
||
/// <returns></returns>
|
||
public static List<T> StrToList<T>(this string str)
|
||
{
|
||
return StrToList<T>(str, ',');
|
||
}
|
||
|
||
#endregion
|
||
|
||
public static string ToGBK(this string str)
|
||
{
|
||
return Encoding.GetEncoding("GBK").GetString(Encoding.Default.GetBytes(str));
|
||
}
|
||
|
||
public static string FromGBK(this string str)
|
||
{
|
||
return Encoding.Default.GetString(Encoding.GetEncoding("GBK").GetBytes(str));
|
||
}
|
||
|
||
public static string ToBase64String(this string value)
|
||
{
|
||
if (string.IsNullOrEmpty(value))
|
||
{
|
||
return "";
|
||
}
|
||
|
||
byte[] bytes = Encoding.UTF8.GetBytes(value);
|
||
return Convert.ToBase64String(bytes);
|
||
}
|
||
|
||
public static string FromBase64String(this string value)
|
||
{
|
||
if (string.IsNullOrEmpty(value))
|
||
{
|
||
return "";
|
||
}
|
||
|
||
byte[] bytes = Convert.FromBase64String(value);
|
||
return Encoding.UTF8.GetString(bytes);
|
||
}
|
||
|
||
|
||
public static string RegexMatch(this string str, string pattern)
|
||
{
|
||
try
|
||
{
|
||
return Regex.Match(str, pattern, RegexOptions.IgnoreCase | RegexOptions.Multiline).Value;
|
||
}
|
||
catch
|
||
{
|
||
return "";
|
||
}
|
||
}
|
||
|
||
public static List<string> RegexMatches(this string str, string pattern)
|
||
{
|
||
List<string> list = new List<string>();
|
||
|
||
try
|
||
{
|
||
Regex regex = new Regex(pattern, RegexOptions.IgnoreCase | RegexOptions.Multiline);
|
||
|
||
if (regex.IsMatch(str))
|
||
{
|
||
MatchCollection matchCollection = regex.Matches(str);
|
||
|
||
foreach (Match match in matchCollection)
|
||
{
|
||
list.Add(match.Value);
|
||
}
|
||
}
|
||
|
||
return list;
|
||
}
|
||
catch
|
||
{
|
||
return list;
|
||
}
|
||
}
|
||
|
||
public static bool Has(this string str)
|
||
{
|
||
return !string.IsNullOrEmpty(str?.Trim());
|
||
}
|
||
public static bool NotHas(this string str)
|
||
{
|
||
return string.IsNullOrEmpty(str?.Trim());
|
||
}
|
||
}
|
||
} |