md5 加解密

using JGDJWeb.Model;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Xml;
using System.Text.RegularExpressions;
 
namespace JGDJWeb.Helper
{
    public static class Encrypt
    {
        #region 加密解密方法
        public static string Key = "DKMAB5DE";//加密密钥必须为8位
        /// <summary>
        /// 加密方法
        /// </summary>
        /// <param name="pToEncrypt"></param>
        /// <returns></returns>
        public static string MD5Encrypt(string pToEncrypt)
        {
            if (string.IsNullOrEmpty(pToEncrypt))
                return "";
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();
            byte[] inputByteArray = Encoding.Default.GetBytes(pToEncrypt);
            des.Key = ASCIIEncoding.ASCII.GetBytes(Key);
            des.IV = ASCIIEncoding.ASCII.GetBytes(Key);
            MemoryStream ms = new MemoryStream();
            CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
            cs.Write(inputByteArray, 0, inputByteArray.Length);
            cs.FlushFinalBlock();
            StringBuilder ret = new StringBuilder();
            foreach (byte in ms.ToArray())
            {
                ret.AppendFormat("{0:X2}", b);
            }
            ret.ToString();
            return ret.ToString();
 
        }
        /// <summary>
        /// 解密算法
        /// </summary>
        /// <param name="pToDecrypt"></param>
        /// <returns></returns>
        public static string MD5Decrypt(string pToDecrypt)
        {
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();
            byte[] inputByteArray = new byte[pToDecrypt.Length / 2];
            for (int x = 0; x < pToDecrypt.Length / 2; x++)
            {
                int i = (Convert.ToInt32(pToDecrypt.Substring(x * 2, 2), 16));
                inputByteArray[x] = (byte)i;
            }
            des.Key = ASCIIEncoding.ASCII.GetBytes(Key);
            des.IV = ASCIIEncoding.ASCII.GetBytes(Key);
            MemoryStream ms = new MemoryStream();
            CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
            cs.Write(inputByteArray, 0, inputByteArray.Length);
            cs.FlushFinalBlock();
            StringBuilder ret = new StringBuilder();
            return System.Text.Encoding.ASCII.GetString(ms.ToArray());
        }
        #endregion
 
        public static JY_Newss getNews(string newsNo)
        {
            using (var context = new JGDJEntities())
            {
                try
                {
                    return context.JY_Newss.Where(c => c.NewsNo == newsNo).First();
                }
                catch (Exception e)
                {
                    return new JY_Newss();
                }
            }
        }
 
        public static string subContent(string content,int length)
        {
           
            if (content.Length > length)
            {
                //content= NoHTML(content);
                content = content.Substring(0, length)+"...";
            }
            return content;
        }
 
        public static string NoHTML(string Htmlstring)
        {
            ////删除脚本
            //Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);
            ////删除style
            //Htmlstring = Regex.Replace(Htmlstring, @"<style[^>]*?>.*?</style>", "", RegexOptions.IgnoreCase);
            ////删除HTML
            //Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"([\r\n])[\s]+", "", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase);
            //Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase);
            //Htmlstring.Replace("<", "");
            //Htmlstring.Replace(">", "");
            //Htmlstring.Replace("\r\n", "");
 
 
            /*
            * 最好把所有的特殊HTML标记都找出来,然后把与其相对应的Unicode字符一起影射到Hash表内,最后一起都替换掉
            */
            //先单独测试,成功后,再把所有模式合并
            //注:这两个必须单独处理
            //去掉嵌套了HTML标记的JavaScript:(<script)[\\s\\S]*(</script>)
            //去掉css标记:(<style)[\\s\\S]*(</style>)
            //去掉css标记:\\..*\\{[\\s\\S]*\\}
            Htmlstring = Regex.Replace(Htmlstring, "(<script)[\\s\\S]*?(</script>)|(<style)[\\s\\S]*?(</style>)", " ", RegexOptions.IgnoreCase);
            //htmlStream = RemoveTag(htmlStream, "script");
            //htmlStream = RemoveTag(htmlStream, "style");
            //去掉普通HTML标记:<[^>]+>
            //替换空格:&nbsp;|&amp;|&shy;|&#160;|&#173;
            Htmlstring = Regex.Replace(Htmlstring, "<[^>]+>|&nbsp;|&amp;|&shy;|&#160;|&#173;|&bull;|&lt;|&gt;", " ", RegexOptions.IgnoreCase);
            //htmlStream = RemoveTag(htmlStream);
            //替换左尖括号
            //htmlStream = Regex.Replace(htmlStream, "&lt;", "<");
            //替换右尖括号
            //htmlStream = Regex.Replace(htmlStream, "&gt;", ">");
            //替换空行
            //htmlStream = Regex.Replace(htmlStream, "[\n|\r|\t]", " ");//[\n|\r][\t*| *]*[\n|\r]
            Htmlstring = Regex.Replace(Htmlstring, "(\r\n[\r|\n|\t]*\r\n)|(\n[\r|\n|\t]*\n)", "\r\n");
            Htmlstring = Regex.Replace(Htmlstring, "[\t]{1,}", " ");
  
            Htmlstring = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();
            return Htmlstring;
        }
 
        public static string GetXML(string type)
        {
            string classNo = "";
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load(AppDomain.CurrentDomain.SetupInformation.ApplicationBase +"/XML/Menu.xml");
            XmlNodeList xnl = xmlDoc["root"].ChildNodes;
            foreach (XmlNode lastNode in xnl)
            {
                if (type == lastNode.Attributes["id"].Value.ToString())
                {
                    foreach (XmlNode node in lastNode.ChildNodes)
                    {
                        classNo = node.InnerText;
                    }
                    classNo = MD5Encrypt(classNo);
                }
            }
            return classNo;
        }
 
        public static string GetClientIP()
        {
            string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
            if (null == result || result == String.Empty)
            {
            result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
            }
 
            if (null == result || result == String.Empty)
            {
            result = HttpContext.Current.Request.UserHostAddress;
            }
            return result;
        }
 
        public static void UpdateClick(string newsNo)
        {
            using (var context = new JGDJEntities())
            {
                var news = context.JY_Newss.Where(j => j.NewsNo == newsNo).FirstOrDefault();
                if (news != null)
                {
                    if (news.Click == null)
                    {
                        news.Click = 1;
                    }
                    else
                    {
                        news.Click += 1;
                    }
                    var clickD = new JY_NewsClick_D();
                    clickD.CDate = int.Parse(DateTime.Now.ToString("yyyyMMdd"));
                    clickD.NewsID = news.NewsID;
                    clickD.CreateTime = DateTime.Now;
                    clickD.IP = GetClientIP();
                    context.JY_NewsClick_D.AddObject(clickD);
                    var clickY = context.JY_NewsClick_Y.Where(j => j.NewsID == news.NewsID&&j.Years==DateTime.Now.Year).FirstOrDefault();
                    if (clickY != null)
                    {
                        switch (DateTime.Now.Month)
                        {
                            case 1: clickY.M1 = clickY.M1 == null ? 1 : (clickY.M1 + 1); break;
                            case 2: clickY.M2 = clickY.M2 == null ? 1 : (clickY.M2 + 1); break;
                            case 3: clickY.M3 = clickY.M3 == null ? 1 : (clickY.M3 + 1); break;
                            case 4: clickY.M4 = clickY.M4 == null ? 1 : (clickY.M4 + 1); break;
                            case 5: clickY.M5 = clickY.M5 == null ? 1 : (clickY.M5 + 1); break;
                            case 6: clickY.M6 = clickY.M6 == null ? 1 : (clickY.M6 + 1); break;
                            case 7: clickY.M7 = clickY.M7 == null ? 1 : (clickY.M7 + 1); break;
                            case 8: clickY.M8 = clickY.M8 == null ? 1 : (clickY.M8 + 1); break;
                            case 9: clickY.M9 = clickY.M9 == null ? 1 : (clickY.M9 + 1); break;
                            case 10: clickY.M10 = clickY.M10 == null ? 1 : (clickY.M10 + 1); break;
                            case 11: clickY.M11 = clickY.M11 == null ? 1 : (clickY.M11 + 1); break;
                            case 12: clickY.M12 = clickY.M12 == null ? 1 : (clickY.M12 + 1); break;
                        }
                    }
                    else
                    {
                        clickY = new JY_NewsClick_Y();
                        clickY.NewsID = news.NewsID;
                        clickY.Years = DateTime.Now.Year;
                        switch (DateTime.Now.Month)
                        {
                            case 1: clickY.M1 = clickY.M1 == null ? 1 : (clickY.M1 + 1); break;
                            case 2: clickY.M2 = clickY.M2 == null ? 1 : (clickY.M2 + 1); break;
                            case 3: clickY.M3 = clickY.M3 == null ? 1 : (clickY.M3 + 1); break;
                            case 4: clickY.M4 = clickY.M4 == null ? 1 : (clickY.M4 + 1); break;
                            case 5: clickY.M5 = clickY.M5 == null ? 1 : (clickY.M5 + 1); break;
                            case 6: clickY.M6 = clickY.M6 == null ? 1 : (clickY.M6 + 1); break;
                            case 7: clickY.M7 = clickY.M7 == null ? 1 : (clickY.M7 + 1); break;
                            case 8: clickY.M8 = clickY.M8 == null ? 1 : (clickY.M8 + 1); break;
                            case 9: clickY.M9 = clickY.M9 == null ? 1 : (clickY.M9 + 1); break;
                            case 10: clickY.M10 = clickY.M10 == null ? 1 : (clickY.M10 + 1); break;
                            case 11: clickY.M11 = clickY.M11 == null ? 1 : (clickY.M11 + 1); break;
                            case 12: clickY.M12 = clickY.M12 == null ? 1 : (clickY.M12 + 1); break;
                        }
                        context.JY_NewsClick_Y.AddObject(clickY);
                    }
                    var classList = context.JY_NewsClass.Where(c => c.NewsNo == news.NewsNo).Select(c => c.ClassNo).ToList();
                    foreach (var item in classList)
                    {
                        var classs = context.JY_News_Classs.Where(j => j.ClassNo == item).FirstOrDefault();
                        if (classs != null)
                        {
                            if (classs.Click == null)
                            {
                                classs.Click = 1;
                            }
                            else
                            {
                                classs.Click += 1;
                            }
                            var CclickD = new JY_ClasssClick_D();
                            CclickD.CDate = int.Parse(DateTime.Now.ToString("yyyyMMdd"));
                            CclickD.ClassID = classs.ClassID;
                            context.JY_ClasssClick_D.AddObject(CclickD);
                        }
                        var CclickY = context.JY_ClasssClick_Y.Where(j => j.ClassID == classs.ClassID && j.Years == DateTime.Now.Year).FirstOrDefault();
                        if (CclickY != null)
                        {
                            switch (DateTime.Now.Month)
                            {
                                case 1: CclickY.M1 = CclickY.M1 == null ? 1 : (CclickY.M1 + 1); break;
                                case 2: CclickY.M2 = CclickY.M2 == null ? 1 : (CclickY.M2 + 1); break;
                                case 3: CclickY.M3 = CclickY.M3 == null ? 1 : (CclickY.M3 + 1); break;
                                case 4: CclickY.M4 = CclickY.M4 == null ? 1 : (CclickY.M4 + 1); break;
                                case 5: CclickY.M5 = CclickY.M5 == null ? 1 : (CclickY.M5 + 1); break;
                                case 6: CclickY.M6 = CclickY.M6 == null ? 1 : (CclickY.M6 + 1); break;
                                case 7: CclickY.M7 = CclickY.M7 == null ? 1 : (CclickY.M7 + 1); break;
                                case 8: CclickY.M8 = CclickY.M8 == null ? 1 : (CclickY.M8 + 1); break;
                                case 9: CclickY.M9 = CclickY.M9 == null ? 1 : (CclickY.M9 + 1); break;
                                case 10: CclickY.M10 = CclickY.M10 == null ? 1 : (CclickY.M10 + 1); break;
                                case 11: CclickY.M11 = CclickY.M11 == null ? 1 : (CclickY.M11 + 1); break;
                                case 12: CclickY.M12 = CclickY.M12 == null ? 1 : (CclickY.M12 + 1); break;
                            }
                        }
                        else
                        {
                            CclickY = new JY_ClasssClick_Y();
                            CclickY.ClassID = classs.ClassID;
                            CclickY.Years = DateTime.Now.Year;
                            switch (DateTime.Now.Month)
                            {
                                case 1: CclickY.M1 = CclickY.M1 == null ? 1 : (CclickY.M1 + 1); break;
                                case 2: CclickY.M2 = CclickY.M2 == null ? 1 : (CclickY.M2 + 1); break;
                                case 3: CclickY.M3 = CclickY.M3 == null ? 1 : (CclickY.M3 + 1); break;
                                case 4: CclickY.M4 = CclickY.M4 == null ? 1 : (CclickY.M4 + 1); break;
                                case 5: CclickY.M5 = CclickY.M5 == null ? 1 : (CclickY.M5 + 1); break;
                                case 6: CclickY.M6 = CclickY.M6 == null ? 1 : (CclickY.M6 + 1); break;
                                case 7: CclickY.M7 = CclickY.M7 == null ? 1 : (CclickY.M7 + 1); break;
                                case 8: CclickY.M8 = CclickY.M8 == null ? 1 : (CclickY.M8 + 1); break;
                                case 9: CclickY.M9 = CclickY.M9 == null ? 1 : (CclickY.M9 + 1); break;
                                case 10: CclickY.M10 = CclickY.M10 == null ? 1 : (CclickY.M10 + 1); break;
                                case 11: CclickY.M11 = CclickY.M11 == null ? 1 : (CclickY.M11 + 1); break;
                                case 12: CclickY.M12 = CclickY.M12 == null ? 1 : (CclickY.M12 + 1); break;
                            }
                            context.JY_ClasssClick_Y.AddObject(CclickY);
                        }
                    }
                    context.SaveChanges();
                }
            }
        }
 
    }
}
posted @ 2015-05-28 14:25  calochCN  阅读(231)  评论(0编辑  收藏  举报