簡化SQL Insert、Update、Delete、Select的方法

在過去開發過程中，我一直對數據庫的操作需要寫重復的insert 、update、 delete、 select函數感到很討厭，所以我之前寫了一些簡化的方法，現重新整理一下給大家分享

，希望對大家有所幫助，代碼如下：

//對數據庫的所有操作只是調用Oper或Select兩個函數就可以了，只是構造不同的class和sql

private string insertsql = "insert .....";

private string updatesql = "update .....";

private string deletesql = "delete .....";

private string selectsql = "select .....";

public class SampleClass //定義實體類,變量名和sql裡的輸入變量名對應

{

private Int32 _AttKey = -1;

private String _EqStyle = "";

//。。。。。。。。。。更多類成員

public Int32 AttKey

{

get{ }

set{ }

}

//。。。。。。。。。。。。。。

}

private System.Data.SqlClient.SqlParameter[] GetParameters(System.Object obj)　　　//構造SqlParameter對象函數

{

System.Reflection.PropertyInfo[] properties = obj.GetType().GetProperties();

System.Data.SqlClient.SqlParameter[] theParameters = new System.Data.SqlClient.SqlParameter[properties.Length];

int i = 0;

foreach (System.Reflection.PropertyInfo property in properties)

{

theParameters[i] = new System.Data.SqlClient.SqlParameter("@" + property.Name,Convert.ChangeType(property.GetValue(obj, null),property.GetType()));

i = i + 1;

}

return theParameters;

}

public Song.Model.ExecuteResultEnum Oper(System.Object obj, string sqlstr) //執行操作函數

{

try

{

SqlParameter[] theParameters = new SqlParameter[] { new SqlParameter() };

theParameters = GetParameters(obj);

SQLServerHelper.ExecuteNonQuery(sqlstr, theParameters);

return ExecuteResultEnum.Succeed;

}

catch

{

return ExecuteResultEnum.Failed;

}

}

public System.Collections.ArrayList Select<T>(System.Object obj, string sqlstr) //執行select函數

{

try

{

SqlParameter[] theParameters = new SqlParameter[] { new SqlParameter() };

theParameters = GetParameters(obj);

System.Collections.ArrayList arr=SQLServerHelper.ExecuteSelect(sqlstr, theParameters);

return arr;

}

catch

{

return null;

}

}

private void oop()//調用

{

SampleClass sc = new SampleClass();

sc.AttKey = 1;

sc.EqStyle = "ww";

Song.Model.ExecuteResultEnum eResult = Oper(sc, insertsql);

Song.Model.ExecuteResultEnum eResult = Oper(sc, updatesql);

Song.Model.ExecuteResultEnum eResult = Oper(sc, deletesql);

System.Collections.ArrayList arr = Select<SampleClass>(sc, selectsql);

}