101 lines
3.5 KiB
C#
101 lines
3.5 KiB
C#
using System;
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using System.Globalization;
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using System.Text;
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namespace APT.Infrastructure.Core
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{
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/// <summary>
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/// 工具类
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/// </summary>
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public static class Util
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{
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/// <summary>
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/// 新建一个 <see cref="Guid"/>与<see cref="DateTime"/>混合构成的适用于DB的可排序的<see cref="Guid"/>
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/// </summary>
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/// <returns>Comb Guid数据</returns>
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public static Guid NewID()
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{
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byte[] guidArray = Guid.NewGuid().ToByteArray();
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DateTime dtBase = new DateTime(1900, 1, 1);
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DateTime dtNow = DateTime.Now;
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//获取用于生成byte字符串的天数与毫秒数
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TimeSpan days = new TimeSpan(dtNow.Ticks - dtBase.Ticks);
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TimeSpan msecs = new TimeSpan(dtNow.Ticks - (new DateTime(dtNow.Year, dtNow.Month, dtNow.Day).Ticks));
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//转换成byte数组
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//注意SqlServer的时间计数只能精确到1/300秒
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byte[] daysArray = BitConverter.GetBytes(days.Days);
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byte[] msecsArray = BitConverter.GetBytes((long)(msecs.TotalMilliseconds / 3.333333));
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//反转字节以符合SqlServer的排序
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Array.Reverse(daysArray);
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Array.Reverse(msecsArray);
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//把字节复制到Guid中
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Array.Copy(daysArray, daysArray.Length - 2, guidArray, guidArray.Length - 6, 2);
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Array.Copy(msecsArray, msecsArray.Length - 4, guidArray, guidArray.Length - 4, 4);
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return new Guid(guidArray);
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}
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/// <summary>
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/// 加密密码
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/// </summary>
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/// <returns></returns>
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public static string EncryptPassword(string userCode, string password)
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{
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var fixedMark = "-_-APT-_-";
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String sourceString = string.Concat(fixedMark, userCode.ToUpper(), password);
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return HashUtil.GetMD5(sourceString);
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}
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/// <summary>
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/// 获取指定日期，在为一年中为第几周
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/// </summary>
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/// <param name="dt">指定时间</param>
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/// <reutrn>返回第几周</reutrn>
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public static int GetWeekOfYear(DateTime dt)
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{
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GregorianCalendar gc = new GregorianCalendar();
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int weekOfYear = gc.GetWeekOfYear(dt, CalendarWeekRule.FirstDay, DayOfWeek.Monday);
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return weekOfYear;
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}
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/// <summary>
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///
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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 UrlEncode(string str)
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{
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StringBuilder sb = new StringBuilder();
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byte[] byStr = System.Text.Encoding.UTF8.GetBytes(str); //默认是System.Text.Encoding.Default.GetBytes(str)
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for (int i = 0; i < byStr.Length; i++)
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{
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sb.Append(@"%" + Convert.ToString(byStr[i], 16));
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}
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return (sb.ToString());
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}
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/// <summary>
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/// 判断byte数组是否相等
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/// </summary>
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/// <param name="bt1"></param>
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/// <param name="bt2"></param>
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/// <returns></returns>
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public static bool CompareArray(byte[] bt1, byte[] bt2)
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{
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var len1 = bt1.Length;
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var len2 = bt2.Length;
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if (len1 != len2)
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{
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return false;
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}
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for (var i = 0; i < len1; i++)
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{
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if (bt1[i] != bt2[i])
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return false;
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}
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return true;
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}
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}
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}
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