1 using System; 2 using System.Collections.Generic; 3 using System.Data; 4 using System.Data.SqlClient; 5 using System.Linq; 6 using System.Reflection; 7 using System.Text; 8 using System.Threading.Tasks; 9 10 namespace DataBaseUility11 {12     /// <summary>13     /// 数据库使用公共类14     /// </summary>15     public class SQLHelper16     {17         public static string Connection18         {19             get20             {21                 return "Data Source=.;Database=ShortMessage;Integrated Security=true";22             }23         }24 25         /// <summary>26         /// 增删改数据27         /// </summary>28         /// <param name="strSql"></param>29         /// <returns></returns>30         public static bool Processing(string strSql)31         {32             using (SqlConnection sqlCon = new SqlConnection(DatabaseCommon.Connection))33             {34                 sqlCon.Open();35                 SqlCommand sqlCom = new SqlCommand(strSql, sqlCon);36                 if (sqlCom.ExecuteNonQuery() > 0)37                 {38                     return true;39                 }40                 return false;41             }42         }43 44         /// <summary>45         /// 指定条件查询，返回实体集合46         /// </summary>47         /// <returns></returns>48         public static List<T> GetTabaleValue<T>(string strSql)49             where T : class,new()50         {51             using (SqlConnection sqlCon = new SqlConnection(DatabaseCommon.Connection))52             {53                 sqlCon.Open();54                 SqlDataAdapter sqlDA = new SqlDataAdapter(strSql, sqlCon);55                 DataTable dt = new DataTable();56                 sqlDA.Fill(dt);57                 List<T> config = DTToModel<T>(dt);58                 return config;59             }60         }61 62         /// <summary>63         /// 数据表转换为实体64         /// </summary>65         /// <typeparam name="T"></typeparam>66         /// <param name="dt"></param>67         /// <returns></returns>68         public static List<T> DTToModel<T>(DataTable dt) where T : class,new()69         {70             Type type = typeof(T);71             PropertyInfo[] files = type.GetProperties();72             List<T> list = new List<T>();73             foreach (DataRow dr in dt.Rows)74             {75                 T model = new T();76                 for (int i = 0; i < files.Count(); i++)77                 {78                     files[i].SetValue(model, dr[i]);79                 }80                 list.Add(model);81             }82             return list;83         }84     }85 86 }