Web--Utils

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Web;

namespace Xima.FreamWork.Common.Web
{

    public class Utils
    {

        /// <summary>
        /// 返回字符串真实长度, 1个汉字长度为2
        /// </summary>
        /// <returns>字符长度</returns>
        public static int GetStringLength(string str)
        {
            return Encoding.Default.GetBytes(str).Length;
        }

        /// <summary>
        /// 检测是否有Sql危险字符
        /// </summary>
        /// <param name="str">要判断字符串</param>
        /// <returns>判断结果</returns>
        public static bool IsSafeSqlString(string str)
        {
            return !Regex.IsMatch(str, @"[-|;|,|\/|\(|\)|\[|\]|\}|\{|%|@|\*|!|\']");
        }

        #region "字符转换"

        /// <summary>
        /// 将object转换为string类型
        /// </summary>
        /// <param name="expression"></param>
        /// <returns></returns>
        public static string ToStr(object expression)
        {
            return TypeConverter.ObjToStr(expression);
        }

        /// <summary>
        /// object型转换为bool型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的bool类型结果</returns>
        public static bool StrToBool(object expression, bool defValue)
        {
            return TypeConverter.StrToBool(expression, defValue);
        }

        /// <summary>
        /// string型转换为bool型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的bool类型结果</returns>
        public static bool StrToBool(string expression, bool defValue)
        {
            return TypeConverter.StrToBool(expression, defValue);
        }

        /// <summary>
        /// 将对象转换为Int32类型
        /// </summary>
        /// <param name="expression">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static int StrToInt(object expression, int defValue)
        {
            return TypeConverter.ObjectToInt(expression, defValue);
        }

        /// <summary>
        /// 将字符串转换为Int32类型
        /// </summary>
        /// <param name="expression">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static int StrToInt(string expression, int defValue)
        {
            return TypeConverter.StrToInt(expression, defValue);
        }

        /// <summary>
        /// 将字符串转换为Byte类型
        /// </summary>
        /// <param name="expression">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static Byte StrToByte(object expression, byte defValue)
        {
            return TypeConverter.ObjectToByte(expression, defValue);
        }

        /// <summary>
        /// 将字符串转换为Byte类型
        /// </summary>
        /// <param name="expression">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static Byte StrToByte(string expression, byte defValue)
        {
            return TypeConverter.StrToByte(expression, defValue);
        }
        /// <summary>
        /// 将字符串转换为Int32类型
        /// </summary>
        /// <param name="expression">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static Int64 StrToInt64(string expression, int defValue)
        {
            return TypeConverter.StrToInt64(expression, defValue);
        }

        /// <summary>
        /// Object型转换为float型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的int类型结果</returns>
        public static float StrToFloat(object strValue, float defValue)
        {
            return TypeConverter.StrToFloat(strValue, defValue);
        }

        /// <summary>
        /// string型转换为float型
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的float类型结果</returns>
        public static float StrToFloat(string strValue, float defValue)
        {
            return TypeConverter.StrToFloat(strValue, defValue);
        }

        /// <summary>
        /// string类型转换为decimal
        /// </summary>
        /// <param name="strValue">要转换的字符串</param>
        /// <param name="defValue">缺省值</param>
        /// <returns>转换后的decimal类型结果</returns>
        public static decimal strToDecimal(string strValue, decimal defValue)
        {
            return TypeConverter.StrToDecimal(strValue, defValue);
        }
        #endregion

        #region "IP地址"
        /// <summary>
        /// 是否为ip
        /// </summary>
        /// <param name="ip"></param>
        /// <returns></returns>
        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?)$");
        }

        public static bool IsIPSect(string ip)
        {
            return Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){2}((2[0-4]\d|25[0-5]|[01]?\d\d?|\*)\.)(2[0-4]\d|25[0-5]|[01]?\d\d?|\*)$");
        }

        #endregion

        #region grid文字超长截取
        public static string GetUnicodeSubString(string str, int len, string p_TailString)
        {
            string result = string.Empty;// 最终返回的结果
            int byteLen = System.Text.Encoding.Default.GetByteCount(str);// 单字节字符长度
            int charLen = str.Length;// 把字符平等对待时的字符串长度
            int byteCount = 0;// 记录读取进度
            int pos = 0;// 记录截取位置
            if (byteLen > len)
            {
                for (int i = 0; i < charLen; i++)
                {
                    if (Convert.ToInt32(str.ToCharArray()[i]) > 255)// 按中文字符计算加2
                        byteCount += 2;
                    else// 按英文字符计算加1
                        byteCount += 1;
                    if (byteCount > len)// 超出时只记下上一个有效位置
                    {
                        pos = i;
                        break;
                    }
                    else if (byteCount == len)// 记下当前位置
                    {
                        pos = i + 1;
                        break;
                    }
                }

                if (pos >= 0)
                    result = str.Substring(0, pos) + p_TailString;
            }
            else
                result = str;

            return result;
        }
        #endregion

        /// <summary>
        /// 格式化价格信息
        /// </summary>
        /// <param name="Price"></param>
        /// <returns></returns>
        public static string FormatPrice(object Price)
        {
            return string.Format("{0:c}", decimal.Parse(Price.ToString()));
        }

        /// <summary>
        /// 返回根目录
        /// </summary>
        /// <returns></returns>
        public static string GetRootPath()
        {
            return System.Web.HttpContext.Current.Server.MapPath("/");
        }

        /// <summary>
        /// 获得当前绝对路径
        /// </summary>
        /// <param name="strPath">指定的路径</param>
        /// <returns>绝对路径</returns>
        public static string GetMapPath(string strPath)
        {
            if (HttpContext.Current != null)
            {
                return HttpContext.Current.Server.MapPath(strPath);
            }
            else //非web程序引用
            {
                strPath = strPath.Replace("/", "\\");
                if (strPath.StartsWith("\\"))
                {
                    strPath = strPath.Substring(strPath.IndexOf('\\', 1)).TrimStart('\\');
                }
                return System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, strPath);
            }
        }

        #region "按当前日期和时间生成随机数"
        /// <summary>
        /// 按当前日期和时间生成随机数
        /// </summary>
        /// <param name="Num">附加随机数长度</param>
        /// <returns></returns>
        public static string sRndNum(int Num)
        {
            string sTmp_Str = System.DateTime.Today.Year.ToString() + System.DateTime.Today.Month.ToString("00") + System.DateTime.Today.Day.ToString("00") + System.DateTime.Now.Hour.ToString("00") + System.DateTime.Now.Minute.ToString("00") + System.DateTime.Now.Second.ToString("00");
            return sTmp_Str + RndNum(Num);
        }
        #endregion

        #region 生成0-9随机数
        /// <summary>
        /// 生成0-9随机数
        /// </summary>
        /// <param name="VcodeNum">生成长度</param>
        /// <returns></returns>
        public static string RndNum(int VcodeNum)
        {
            StringBuilder sb = new StringBuilder(VcodeNum);
            Random rand = new Random((int)DateTime.Now.Ticks);
            for (int i = 1; i < VcodeNum + 1; i++)
            {
                int t = rand.Next(9);
                sb.AppendFormat("{0}", t);
            }
            return sb.ToString();

        }
        #endregion

        /// <summary>
        /// 计算两个日期的时间间隔
        /// </summary>
        /// <param name="DateTime1">第一个日期和时间</param>
        /// <param name="DateTime2">第二个日期和时间</param>
        /// <returns></returns>
        public static string DateDiff(DateTime DateTime1, DateTime DateTime2)
        {

            string dateDiff = string.Empty;
            TimeSpan ts1 = new TimeSpan(DateTime1.Ticks);
            TimeSpan ts2 = new TimeSpan(DateTime2.Ticks);
            TimeSpan ts = ts1.Subtract(ts2).Duration();
            dateDiff = ts.Days.ToString() + "Day"
                       + ts.Hours.ToString() + "Hours"
                       + ts.Minutes.ToString() + "Minutes"
                       + ts.Seconds.ToString() + "Seconds";
            return dateDiff;
        }


        /// <summary>
        /// 计算两个日期的时间间隔
        /// 第一个日期减去第二个日期
        /// </summary>
        /// <param name="DateTime1">第一个日期和时间</param>
        /// <param name="DateTime2">第二个日期和时间</param>
        /// <returns></returns>
        public static int Date2Diff(DateTime DateTime1, DateTime DateTime2)
        {
            DateTime1 = Convert.ToDateTime(DateTime1.ToString("yyyy-MM-dd"));
            DateTime2 = Convert.ToDateTime(DateTime2.ToString("yyyy-MM-dd"));
            TimeSpan ts1 = new TimeSpan(DateTime1.Ticks);
            TimeSpan ts2 = new TimeSpan(DateTime2.Ticks);
            TimeSpan ts = ts1.Subtract(ts2);
            return ts.Days;
        }

        /// <summary>
        /// 计算日期到今天时间间隔，返回整形
        /// </summary>
        /// <param name="DateTime1">需要计算的日期</param>
        /// <returns></returns>
        public static int DateDiff(DateTime DateTime1)
        {
            int dateDiff = 0;
            TimeSpan ts1 = new TimeSpan(DateTime1.Ticks);
            TimeSpan ts2 = new TimeSpan(DateTime.Now.Ticks);
            TimeSpan ts = ts1.Subtract(ts2).Duration();
            dateDiff = ts.Days;
            return dateDiff;
        }



        #region 全角半角转换
        /// <summary>
        /// 转全角的函数(SBC case)
        /// </summary>
        /// <param name="input">任意字符串</param>
        /// <returns>全角字符串</returns>
        ///<remarks>
        ///全角空格为12288，半角空格为32
        ///其他字符半角(33-126)与全角(65281-65374)的对应关系是：均相差65248
        ///</remarks>
        public static string ToSBC(string input)
        {
            //半角转全角：
            char[] c = input.ToCharArray();
            for (int i = 0; i < c.Length; i++)
            {
                if (c[i] == 32)
                {
                    c[i] = (char)12288;
                    continue;
                }
                if (c[i] < 127)
                    c[i] = (char)(c[i] + 65248);
            }
            return new string(c);
        }


        /// <summary> 转半角的函数(DBC case) </summary>
        /// <param name="input">任意字符串</param>
        /// <returns>半角字符串</returns>
        ///<remarks>
        ///全角空格为12288，半角空格为32
        ///其他字符半角(33-126)与全角(65281-65374)的对应关系是：均相差65248
        ///</remarks>
        public static string ToDBC(string input)
        {
            char[] c = input.ToCharArray();
            for (int i = 0; i < c.Length; i++)
            {
                if (c[i] == 12288)
                {
                    c[i] = (char)32;
                    continue;
                }
                if (c[i] > 65280 && c[i] < 65375)
                    c[i] = (char)(c[i] - 65248);
            }
            return new string(c);
        }

        /// <summary>
        /// 把英文半角符号'"替换为英文全角符号＇＂，防止干扰前台的js函数tooltip.show()而导致乱码
        /// </summary>
        /// <param name="strList">不安全的字符串</param>
        /// <returns>安全的字符串</returns>
        public static string protectJsTooltipShow(string strList)
        {
            string strSafe = strList;
            strSafe = strSafe.Replace("&", "&amp;");
            strSafe = strSafe.Replace("\"", "&quot;");
            strSafe = strSafe.Replace("\n", "&lt;br&gt");
            strSafe = strSafe.Replace(@"\", @"\\");
            strSafe = strSafe.Replace("'", "\\'");
            strSafe = strSafe.Replace("<", "&lt;");
            strSafe = strSafe.Replace(">", "&gt;");
            return strSafe;
        }
        #endregion



        public static string ChineseTONumber(string chStr)
        {
            const string numStr = "0123456789";
            const string chineseStr = "零一二三四五六七八九";
            char[] c = chStr.ToCharArray();
            for (int i = 0; i < c.Length; i++)
            {
                int index = chineseStr.IndexOf(c[i]);
                if (index != -1)
                    c[i] = numStr.ToCharArray()[index];
            }
            return new string(c);
        }

        public static string NumberToChinese(string numberStr)
        {
            var numStr = "0123456789";
            var chineseStr = "零一二三四五六七八九";
            char[] c = numberStr.ToCharArray();
            for (int i = 0; i < c.Length; i++)
            {
                int index = numStr.IndexOf(c[i]);
                if (index != -1)
                    c[i] = chineseStr.ToCharArray()[index];
            }
            return new string(c);
        }
    }
}