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帮助类中
/// <summary> 495 /// 生成随机字母字符串(数字字母混和) 496 /// </summary> 497 /// <param name="codeCount">待生成的位数</param> 498 public static string GetCheckCode(int codeCount) 499 { 500 string str = string.Empty; 501 int rep = 0; 502 long num2 = DateTime.Now.Ticks + rep; 503 rep++; 504 Random random = new Random(((int)(((ulong)num2) & 0xffffffffL)) | ((int)(num2 >> rep))); 505 for (int i = 0; i < codeCount; i++) 506 { 507 char ch; 508 int num = random.Next(); 509 if ((num % 2) == 0) 510 { 511 ch = (char)(0x30 + ((ushort)(num % 10))); 512 } 513 else 514 { 515 ch = (char)(0x41 + ((ushort)(num % 0x1a))); 516 } 517 str = str + ch.ToString(); 518 } 519 return str; 520 } 521 /// <summary> 522 /// 根据日期和随机码生成订单号 523 /// </summary> 524 /// <returns></returns> 525 public static string GetOrderNumber() 526 { 527 string num = DateTime.Now.ToString("yyMMddHHmmss");//yyyyMMddHHmmssms 528 return num + Number(2).ToString(); 529 } 530 private static int Next(int numSeeds, int length) 531 { 532 byte[] buffer = new byte[length]; 533 System.Security.Cryptography.RNGCryptoServiceProvider Gen = new System.Security.Cryptography.RNGCryptoServiceProvider(); 534 Gen.GetBytes(buffer); 535 uint randomResult = 0x0;//这里用uint作为生成的随机数 536 for (int i = 0; i < length; i++) 537 { 538 randomResult |= ((uint)buffer[i] << ((length - 1 - i) * 8)); 539 } 540 return (int)(randomResult % numSeeds); 541 } 542 #endregion 543 544 #region 截取字符长度 545 /// <summary> 546 /// 截取字符长度 547 /// </summary> 548 /// <param name="inputString">字符</param> 549 /// <param name="len">长度</param> 550 /// <returns></returns> 551 public static string CutString(string inputString, int len) 552 { 553 if (string.IsNullOrEmpty(inputString)) 554 return ""; 555 inputString = DropHTML(inputString); 556 ASCIIEncoding ascii = new ASCIIEncoding(); 557 int tempLen = 0; 558 string tempString = ""; 559 byte[] s = ascii.GetBytes(inputString); 560 for (int i = 0; i < s.Length; i++) 561 { 562 if ((int)s[i] == 63) 563 { 564 tempLen += 2; 565 } 566 else 567 { 568 tempLen += 1; 569 } 570 571 try 572 { 573 tempString += inputString.Substring(i, 1); 574 } 575 catch 576 { 577 break; 578 } 579 580 if (tempLen > len) 581 break; 582 } 583 //如果截过则加上半个省略号 584 byte[] mybyte = System.Text.Encoding.Default.GetBytes(inputString); 585 if (mybyte.Length > len) 586 tempString += "…"; 587 return tempString; 588 } 589 #endregion 590 591 #region 对象<-->JSON 4.0使用 592 /// <summary> 593 /// 对象转JSON 594 /// </summary> 595 /// <typeparam name="T">对象实体</typeparam> 596 /// <param name="t">内容</param> 597 /// <returns>json包</returns> 598 public static string ObjetcToJson<T>(T t) 599 { 600 try 601 { 602 DataContractJsonSerializer json = new DataContractJsonSerializer(typeof(T)); 603 string szJson = ""; 604 using (MemoryStream stream = new MemoryStream()) 605 { 606 json.WriteObject(stream, t); 607 szJson = Encoding.UTF8.GetString(stream.ToArray()); 608 } 609 return szJson; 610 } 611 catch { return ""; } 612 } 613 614 /// <summary> 615 /// Json包转对象 616 /// </summary> 617 /// <typeparam name="T">对象</typeparam> 618 /// <param name="jsonstring">json包</param> 619 /// <returns>异常抛null</returns> 620 public static object JsonToObject<T>(string jsonstring) 621 { 622 object result = null; 623 try 624 { 625 DataContractJsonSerializer json = new DataContractJsonSerializer(typeof(T)); 626 using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(jsonstring))) 627 { 628 result = json.ReadObject(stream); 629 } 630 return result; 631 } 632 catch { return result; } 633 } 634 #endregion 635 636 #region 对象<-->JSON 2.0 使用litjson插件 637 /// <summary> 638 /// 对象转JSON jsonData 639 /// </summary> 640 /// <typeparam name="T"></typeparam> 641 /// <param name="t"></param> 642 /// <returns></returns> 643 //public static string ObjetcToJsonData<T>(T t) 644 //{ 645 // try 646 // { 647 // JsonData json = new JsonData(t); 648 // return json.ToJson(); 649 // } 650 // catch 651 // { 652 // return ""; 653 // } 654 //} 655 656 ///// <summary> 657 ///// 对象转JSON jsonMapper 658 ///// </summary> 659 ///// <typeparam name="T"></typeparam> 660 ///// <param name="t"></param> 661 ///// <returns></returns> 662 //public static string ObjetcToJsonMapper<T>(T t) 663 //{ 664 // try 665 // { 666 // JsonData json = JsonMapper.ToJson(t); 667 // return json.ToJson(); 668 // } 669 // catch 670 // { 671 // return ""; 672 // } 673 //} 674 675 ///// <summary> 676 ///// json转对象 jsonMapper 677 ///// </summary> 678 ///// <param name="jsons"></param> 679 ///// <returns></returns> 680 //public static object JsonToObject(string jsons) 681 //{ 682 // try 683 // { 684 // JsonData jsonObject = JsonMapper.ToObject(jsons); 685 // return jsonObject; 686 // } 687 // catch { return null; } 688 //} 689 690 #endregion 691 692 #region DataTable<-->JSON 693 /// <summary> 694 /// DataTable转为json 695 /// </summary> 696 /// <param name="dt">DataTable</param> 697 /// <returns>json数据</returns> 698 public static string DataTableToJson(DataTable dt) 699 { 700 List<Dictionary<string, object>> list = new List<Dictionary<string, object>>(); 701 foreach (DataRow dr in dt.Rows) 702 { 703 Dictionary<string, object> result = new Dictionary<string, object>(); 704 foreach (DataColumn dc in dt.Columns) 705 { 706 result.Add(dc.ColumnName, dr[dc]); 707 } 708 list.Add(result); 709 } 710 711 return SerializeToJson(list); 712 } 713 /// <summary> 714 /// 序列化对象为Json字符串 715 /// </summary> 716 /// <param name="obj">要序列化的对象</param> 717 /// <param name="recursionLimit">序列化对象的深度，默认为100</param> 718 /// <returns>Json字符串</returns> 719 public static string SerializeToJson(object obj, int recursionLimit = 100) 720 { 721 try 722 { 723 JavaScriptSerializer serialize = new JavaScriptSerializer(); 724 serialize.RecursionLimit = recursionLimit; 725 return serialize.Serialize(obj); 726 } 727 catch { return ""; } 728 } 729 /// <summary> 730 /// json包转DataTable 731 /// </summary> 732 /// <param name="jsons"></param> 733 /// <returns></returns> 734 public static DataTable JsonToDataTable(string jsons) 735 { 736 DataTable dt = new DataTable(); 737 try 738 { 739 JavaScriptSerializer serialize = new JavaScriptSerializer(); 740 serialize.MaxJsonLength = Int32.MaxValue; 741 ArrayList list = serialize.Deserialize<ArrayList>(jsons); 742 if (list.Count > 0) 743 { 744 foreach (Dictionary<string, object> item in list) 745 { 746 if (item.Keys.Count == 0)//无值返回空 747 { 748 return dt; 749 } 750 if (dt.Columns.Count == 0)//初始Columns 751 { 752 foreach (string current in item.Keys) 753 { 754 dt.Columns.Add(current, item[current].GetType()); 755 } 756 } 757 DataRow dr = dt.NewRow(); 758 foreach (string current in item.Keys) 759 { 760 dr[current] = item[current]; 761 } 762 dt.Rows.Add(dr); 763 } 764 } 765 } 766 catch 767 { 768 return dt; 769 } 770 return dt; 771 } 772 #endregion 773 774 #region List<--->DataTable 775 /// <summary> 776 /// DataTable转换泛型集合 777 /// </summary> 778 /// <typeparam name="T"></typeparam> 779 /// <param name="table"></param> 780 /// <returns></returns> 781 public static List<T> DataTableToList<T>(DataTable table) 782 { 783 List<T> list = new List<T>(); 784 T t = default(T); 785 PropertyInfo[] propertypes = null; 786 string tempName = string.Empty; 787 foreach (DataRow row in table.Rows) 788 { 789 t = Activator.CreateInstance<T>(); 790 propertypes = t.GetType().GetProperties(); 791 foreach (PropertyInfo pro in propertypes) 792 { 793 tempName = pro.Name; 794 if (table.Columns.Contains(tempName)) 795 { 796 object value = http://www.mamicode.com/row[tempName];"")) 798 { 799 pro.SetValue(t, value, null); 800 } 801 } 802 } 803 list.Add(t); 804 } 805 return list.Count == 0 ? null : list; 806 } 807 808 /// <summary> 809 /// 将集合类转换成DataTable 810 /// </summary> 811 /// <param name="list">集合</param> 812 /// <returns>DataTable</returns> 813 public static DataTable ListToDataTable(IList list) 814 { 815 DataTable result = new DataTable(); 816 if (list != null && list.Count > 0) 817 { 818 PropertyInfo[] propertys = list[0].GetType().GetProperties(); 819 foreach (PropertyInfo pi in propertys) 820 { 821 result.Columns.Add(pi.Name, pi.PropertyType); 822 } 823 for (int i = 0; i < list.Count; i++) 824 { 825 ArrayList tempList = new ArrayList(); 826 foreach (PropertyInfo pi in propertys) 827 { 828 object obj = pi.GetValue(list[i], null); 829 tempList.Add(obj); 830 } 831 object[] array = tempList.ToArray(); 832 result.LoadDataRow(array, true); 833 } 834 } 835 return result; 836 } 837 public static List<T> ConvertTo<T>(DataTable dt) where T : new() 838 { 839 if (dt == null) return null; 840 if (dt.Rows.Count <= 0) return null; 841 842 List<T> list = new List<T>(); 843 try 844 { 845 List<string> columnsName = new List<string>(); 846 foreach (DataColumn dataColumn in dt.Columns) 847 { 848 columnsName.Add(dataColumn.ColumnName);//得到所有的表头 849 } 850 list = dt.AsEnumerable().ToList().ConvertAll<T>(row => GetObject<T>(row, columnsName)); //转换 851 return list; 852 } 853 catch 854 { 855 return null; 856 } 857 } 858 859 public static T GetObject<T>(DataRow row, List<string> columnsName) where T : new() 860 { 861 T obj = new T(); 862 try 863 { 864 string columnname = ""; 865 string valuehttp://www.mamicode.com/= ""; 866 PropertyInfo[] Properties = typeof(T).GetProperties(); 867 foreach (PropertyInfo objProperty in Properties) //遍历T的属性 868 { 869 columnname = columnsName.Find(name => name.ToLower() == objProperty.Name.ToLower()); //寻找可以匹配的表头名称 870 if (!string.IsNullOrEmpty(columnname)) 871 { 872 value = http://www.mamicode.com/row[columnname].ToString();"$", "").Replace(",", ""); //从dataRow中提取数据 878 objProperty.SetValue(obj, Convert.ChangeType(value, Type.GetType(Nullable.GetUnderlyingType(objProperty.PropertyType).ToString())), null); //赋值操作 879 } 880 else 881 { 882 value = http://www.mamicode.com/row[columnname].ToString().Replace("%", ""); //存在匹配的表头 883 objProperty.SetValue(obj, Convert.ChangeType(value, Type.GetType(objProperty.PropertyType.ToString())), null);//赋值操作 884 } 885 } 886 } 887 } 888 return obj; 889 } 890 catch 891 { 892 return obj; 893 } 894 } 895 /// <summary> 896 /// 将泛型集合类转换成DataTable 897 /// </summary> 898 /// <typeparam name="T">集合项类型</typeparam> 899 /// <param name="list">集合</param> 900 /// <param name="propertyName">需要返回的列的列名</param> 901 /// <returns>数据集(表)</returns> 902 public static DataTable ListToDataTable<T>(IList<T> list, params string[] propertyName) 903 { 904 List<string> propertyNameList = new List<string>(); 905 if (propertyName != null) 906 propertyNameList.AddRange(propertyName); 907 DataTable result = new DataTable(); 908 if (list != null && list.Count > 0) 909 { 910 PropertyInfo[] propertys = list[0].GetType().GetProperties(); 911 foreach (PropertyInfo pi in propertys) 912 { 913 if (propertyNameList.Count == 0) 914 { 915 result.Columns.Add(pi.Name, pi.PropertyType); 916 } 917 else 918 { 919 if (propertyNameList.Contains(pi.Name)) 920 result.Columns.Add(pi.Name, pi.PropertyType); 921 } 922 } 923 for (int i = 0; i < list.Count; i++) 924 { 925 ArrayList tempList = new ArrayList(); 926 foreach (PropertyInfo pi in propertys) 927 { 928 if (propertyNameList.Count == 0) 929 { 930 object obj = pi.GetValue(list[i], null); 931 tempList.Add(obj); 932 } 933 else 934 { 935 if (propertyNameList.Contains(pi.Name)) 936 { 937 object obj = pi.GetValue(list[i], null); 938 tempList.Add(obj); 939 } 940 } 941 } 942 object[] array = tempList.ToArray(); 943 result.LoadDataRow(array, true); 944 } 945 } 946 return result; 947 } 948 949 #endregion 950 951 #region 清除HTML标记 952 public static string DropHTML(string Htmlstring) 953 { 954 if (string.IsNullOrEmpty(Htmlstring)) return ""; 955 //删除脚本 956 Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase); 957 //删除HTML 958 Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase); 959 Htmlstring = Regex.Replace(Htmlstring, @"([\r\n])[\s]+", "", RegexOptions.IgnoreCase); 960 Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase); 961 Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase); 962 Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase); 963 Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase); 964 Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase); 965 Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase); 966 Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase); 967 Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase); 968 Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase); 969 Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase); 970 Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase); 971 972 Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase); 973 Htmlstring.Replace("<", ""); 974 Htmlstring.Replace(">", ""); 975 Htmlstring.Replace("\r\n", ""); 976 Htmlstring = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim(); 977 return Htmlstring; 978 } 979 #endregion 980 981 #region 清除HTML标记且返回相应的长度 982 public static string DropHTML(string Htmlstring, int strLen) 983 { 984 return CutString(DropHTML(Htmlstring), strLen); 985 } 986 #endregion 987 988 #region TXT代码转换成HTML格式 989 /// <summary> 990 /// 字符串字符处理 991 /// </summary> 992 /// <param name="chr">等待处理的字符串</param> 993 /// <returns>处理后的字符串</returns> 994 /// //把TXT代码转换成HTML格式 995 public static String ToHtml(string Input) 996 { 997 StringBuilder sb = new StringBuilder(Input); 998 sb.Replace("&", "&"); 999 sb.Replace("<", "<");1000 sb.Replace(">", ">");1001 sb.Replace("\r\n", "<br />");1002 sb.Replace("\n", "<br />");1003 sb.Replace("\t", " ");1004 //sb.Replace(" ", " ");1005 return sb.ToString();1006 }1007 #endregion帮助类中
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