我写了一个静态数据连接类 但是不知道 怎么处理其中的对象

Question

1 using System; 2 using System.Data; 3 using System.Configuration; 4 using System.Collections; 5 using System.Web; 6 using System.Web.Security; 7 using System.Data.SqlClient; 8 using System.Web.UI; 9 using System.Web.UI.HtmlControls; 10 using System.Web.UI.WebControls; 11 using System.Web.UI.WebControls.WebParts; 12 13 /// <summary> 14 ///database 的摘要说明 15 /// </summary> 16 public static class sqlbase 17 { 18 19 static SqlConnection thiscon2;//处理函数使用的链接 20 static string constr1; 21 22 public static string constr2 = ConfigurationManager.ConnectionStrings["data_smfConnectionString"].ToString(); 23 static SqlCommand com,com1,com2,com3 ; 24 static SqlDataAdapter adpater; 25 static DataSet ds; 26 static String rtstr; 27 /// <summary> 28 /// 数据连接字符串 29 /// </summary> 30 /// <param name="_sqlstr"></param> 31 static sqlbase() 32 { 33 sqlconstr1(); 34 35 } 36 /// <summary> 37 /// 使用默认1链接 38 /// </summary> 39 public static void sqlconstr1() 40 { 41 constr1 = ConfigurationManager.ConnectionStrings["playerConnectionString"].ToString(); 42 } 43 /// <summary> 44 /// 使用默认2链接 45 /// </summary> 46 public static void sqlconstr2() 47 { 48 constr1 = constr2; 49 } 50 51 public static void getcon() 52 { 53 54 thiscon2= new SqlConnection(constr1); 55 56 } 57 public static SqlCommand getcom() 58 { 59 60 com= new SqlCommand(); 61 return com; 62 63 } 64 #region p_sqldatabase 成员 65 66 /// <summary> 67 /// 通过SQL语句返回特定数据 68 /// </summary> 69 /// <param name="str"></param> 70 /// <returns></returns> 71 public static DataSet gettable(String str) 72 { 73 getcon(); 74 com1 = getcom(); 75 com1.Connection = thiscon2; 76 com1.CommandText = str; 77 adpater = new SqlDataAdapter(com); 78 ds = new DataSet(); 79 adpater.Fill(ds); 80 closecom(ref com3); 81 return ds; 82 } 83 84 /// <summary> 85 /// 通过存储过程返回特定数据 86 /// </summary> 87 /// <param name="ay"></param> 88 /// <param name="StoredProcedurename"></param> 89 /// <returns></returns> 90 public static DataSet gettable(SqlParameter[] pter, String StoredProcedurename) 91 { 92 getcon(); 93 com2 = getcom(); 94 com2.Connection = thiscon2; 95 com2.Parameters.Clear(); 96 com2.CommandType = CommandType.StoredProcedure; 97 com2.CommandText = StoredProcedurename; 98 com2.Parameters.AddRange(pter); 99 adpater = new SqlDataAdapter(com);100 ds = new DataSet();101 adpater.Fill(ds);102 closecom(ref com3);103 return ds;104 }105 106 public static int todo(string str)107 {108 109 throw new NotImplementedException();110 }111 112 public static int todo(SqlParameter[] pter, string StoredProcedurename)113 {114 throw new NotImplementedException();115 }116 117 public static string getone(string str)118 {119 throw new NotImplementedException();120 }121 122 public static string getone(SqlParameter[] pter, string StoredProcedurename)123 {124 try125 {126 getcon();127 com3 = getcom();128 com3.Connection = thiscon2;129 com3.Connection.Open();130 com3.CommandType = CommandType.StoredProcedure;131 com3.Parameters.Clear();132 com3.Parameters.AddRange(pter);133 com3.CommandText = StoredProcedurename;134 rtstr = com.ExecuteScalar().ToString();135 closecom(ref com3);136 137 return rtstr;138 }139 catch (Exception e)140 {141 closecom(ref com3);142 errormark.strong(e);143 return "-1";144 }145 146 147 }148 149 public static void closecom(ref SqlCommand comclose)150 {151 152 if (comclose != null)153 {154 comclose.Connection.Close();155 comclose.Connection.Dispose();156 comclose.Dispose();157 158 }159 160 }161 /// <summary>162 /// 设置链接字符串163 /// </summary>164 public static string setsqlcon165 {166 set167 {168 constr1 = value; sqlconstr1();169 170 }171 172 }173 174 #endregion175 176 177 public static void gettable()178 {179 throw new NotImplementedException();180 }181 }

Answer 1

不会，用户之间是不会影响的，重载方法会根据传入的参数调用对应的方法。

Answer 2

我写的那是静态的你没看到?

Answer 3

不要这样写。考虑下线程安全问题。