webconfig连接数据库配置

 <connectionStrings>

    <add name="sqlConnection" connectionString="server=--------;Database=WeChatReport;Uid= ;Pwd= " providerName="System.Data.SqlClient"/>

  </connectionStrings>

 

 

APP_CODE;

using System; using System.Data; using System.Configuration;

using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts;

using System.Data.SqlClient; using System.Text; using System.Collections;

/// <summary> /// Summary description for SqlDataAccess /// </summary> public class SqlDataAccess {     //sqlConnection     private string pvtStrSqlCon = ConfigurationManager.ConnectionStrings["sqlConnection"].ConnectionString;     //private SqlConnection pvtSqlCon = new SqlConnection(pvtStrSqlCon);

    private string pvtStrTableName = string.Empty;     private SqlCommand pvtSqlCom = null;

    //with table name as parameter     public SqlDataAccess(string strTableName)     {         ////set pvtStrSqlCon         //if (pvtStrSqlCon == string.Empty)         //{         //    pvtStrSqlCon = ConfigurationManager.ConnectionStrings["sqlConnection"].ConnectionString;         //}

        //set pvtStrTableName         if (pvtStrTableName == string.Empty)         {             pvtStrTableName = strTableName;         }

        //set pvtSqlCom         pvtSqlCom = new SqlCommand();         //pvtSqlCom.Connection = pvtSqlCon;

    }

    //without parameter     public SqlDataAccess()     {         //set pvtStrSqlCon         //if (pvtStrSqlCon == string.Empty)         //{         //    pvtStrSqlCon = ConfigurationManager.ConnectionStrings["sqlConnection"].ConnectionString;         //}

        //set pvtSqlCom         pvtSqlCom = new SqlCommand();         //pvtSqlCom.Connection = pvtSqlCon;     }

    //     ~SqlDataAccess()     {     }

    //when table name set, get table data according to sqlParamCol     public DataSet GetTableData(SqlParameterCollection sqlParamCol)     {         using (SqlConnection pvtSqlCon = new SqlConnection(pvtStrSqlCon))         {             pvtSqlCon.Open();             pvtSqlCom.Connection = pvtSqlCon;

            StringBuilder strSql = new StringBuilder("", 200);             strSql.Append("select * from ");             strSql.Append(pvtStrTableName);             if (sqlParamCol.Count > 0)             {                 strSql.Append(" where 1=1 ");                 for (int i = 0; i < sqlParamCol.Count; i++)                 {                     strSql.Append(" and ");                     strSql.Append(sqlParamCol[i].SourceColumn);                     strSql.Append(" = @");                     strSql.Append(sqlParamCol[i].SourceColumn);

                    pvtSqlCom.Parameters.Add(sqlParamCol[i].ParameterName, sqlParamCol[i].SqlDbType, sqlParamCol[i].Size, sqlParamCol[i].SourceColumn);                     pvtSqlCom.Parameters[i].Value = sqlParamCol[i].Value;                 }             }             pvtSqlCom.CommandText = strSql.ToString();

            SqlDataAdapter daResult = new SqlDataAdapter(pvtSqlCom);             DataSet dsResult = new DataSet();             daResult.Fill(dsResult);

            pvtSqlCon.Close();             return dsResult;         }     }

    public int GetDataCount(SqlParameterCollection sqlParamCol)     {         using (SqlConnection pvtSqlCon = new SqlConnection(pvtStrSqlCon))         {             pvtSqlCon.Open();             pvtSqlCom.Connection = pvtSqlCon;             StringBuilder strSql = new StringBuilder("", 200);

            strSql.Append("select COUNT(1) from ");             strSql.Append(pvtStrTableName);             if (sqlParamCol.Count > 0)             {                 strSql.Append(" where 1=1 ");                 for (int i = 0; i < sqlParamCol.Count; i++)                 {                     strSql.Append(" and ");                     strSql.Append(sqlParamCol[i].SourceColumn);                     strSql.Append(" = @");                     strSql.Append(sqlParamCol[i].SourceColumn);

                    pvtSqlCom.Parameters.Add(sqlParamCol[i].ParameterName, sqlParamCol[i].SqlDbType, sqlParamCol[i].Size, sqlParamCol[i].SourceColumn);                     pvtSqlCom.Parameters[i].Value = sqlParamCol[i].Value;                 }             }             pvtSqlCom.CommandText = strSql.ToString();

            SqlDataAdapter daResult = new SqlDataAdapter(pvtSqlCom);             DataSet dsResult = new DataSet();             daResult.Fill(dsResult);             pvtSqlCon.Close();             return Convert.ToInt32(dsResult.Tables[0].Rows[0][0]);         }     }

    //when update or insert, call this method     public void ExecProcNoneQuery(string strProcName, SqlParameterCollection sqlParamCol)     {         using (SqlConnection pvtSqlCon = new SqlConnection(pvtStrSqlCon))         {             pvtSqlCon.Open();             pvtSqlCom.Connection = pvtSqlCon;

            pvtSqlCom.CommandType = CommandType.StoredProcedure;             pvtSqlCom.CommandText = strProcName;             for (int i = 0; i < sqlParamCol.Count; i++)             {                 pvtSqlCom.Parameters.Add(sqlParamCol[i].ParameterName, sqlParamCol[i].SqlDbType, sqlParamCol[i].Size, sqlParamCol[i].SourceColumn);                 pvtSqlCom.Parameters[i].Value = sqlParamCol[i].Value;                 pvtSqlCom.Parameters[i].Direction = sqlParamCol[i].Direction;             }             pvtSqlCom.ExecuteNonQuery();             for (int i = 0; i < sqlParamCol.Count; i++)             {                 sqlParamCol[i].Value = pvtSqlCom.Parameters[i].Value;             }             pvtSqlCon.Close();         }     }

    //when wanna to get a data result, call this method     public DataSet ExecProcReader(string strProcName, SqlParameterCollection sqlParamCol)     {

        using (SqlConnection pvtSqlCon = new SqlConnection(pvtStrSqlCon))         {             pvtSqlCon.Open();             pvtSqlCom.Connection = pvtSqlCon;

            pvtSqlCom.CommandType = CommandType.StoredProcedure;             pvtSqlCom.CommandText = strProcName;             for (int i = 0; i < sqlParamCol.Count; i++)             {                 pvtSqlCom.Parameters.Add(sqlParamCol[i].ParameterName, sqlParamCol[i].SqlDbType, sqlParamCol[i].Size, sqlParamCol[i].SourceColumn);                 pvtSqlCom.Parameters[i].Value = sqlParamCol[i].Value;                 pvtSqlCom.Parameters[i].Direction = sqlParamCol[i].Direction;             }             SqlDataAdapter daResult = new SqlDataAdapter(pvtSqlCom);             DataSet dsResult = new DataSet();             daResult.Fill(dsResult);             for (int i = 0; i < sqlParamCol.Count; i++)             {                 sqlParamCol[i].Value = pvtSqlCom.Parameters[i].Value;             }             pvtSqlCon.Close();             return dsResult;         }     }

    //when wanna to use sql to get a data result, call this method     public DataSet ExecSqlReader(string strSql, SqlParameterCollection sqlParamCol)     {         using (SqlConnection pvtSqlCon = new SqlConnection(pvtStrSqlCon))         {             pvtSqlCon.Open();             pvtSqlCom.Connection = pvtSqlCon;

            pvtSqlCom.CommandType = CommandType.Text;             pvtSqlCom.CommandText = strSql;             for (int i = 0; i < sqlParamCol.Count; i++)             {                 pvtSqlCom.Parameters.Add(sqlParamCol[i].ParameterName, sqlParamCol[i].SqlDbType, sqlParamCol[i].Size, sqlParamCol[i].SourceColumn);                 pvtSqlCom.Parameters[i].Value = sqlParamCol[i].Value;                 pvtSqlCom.Parameters[i].Direction = sqlParamCol[i].Direction;             }             SqlDataAdapter daResult = new SqlDataAdapter(pvtSqlCom);             DataSet dsResult = new DataSet();             daResult.Fill(dsResult);             for (int i = 0; i < sqlParamCol.Count; i++)             {                 sqlParamCol[i].Value = pvtSqlCom.Parameters[i].Value;             }             pvtSqlCom.Parameters.Clear();             pvtSqlCon.Close();             return dsResult;         }     }     //============================================================     /// <summary>     /// 查询SQL语句时用该方法，返回DataSet     /// </summary>     /// <param name="strSql"></param>     /// <returns></returns>     public DataSet ExecSqlQuery(string strSql)     {         using (SqlConnection pvtSqlCon = new SqlConnection(pvtStrSqlCon))         {             pvtSqlCon.Open();             pvtSqlCom.Connection = pvtSqlCon;

            pvtSqlCom.CommandType = CommandType.Text;             pvtSqlCom.CommandText = strSql;             SqlDataAdapter daResult = new SqlDataAdapter(pvtSqlCom);             DataSet dsResult = new DataSet();             daResult.Fill(dsResult);             pvtSqlCon.Close();             return dsResult;         }     }     //============================================================     /// <summary>     /// 处理SQL语句时，用该方法，返回处理结果，大于0：成功；小于0：失败；     /// </summary>     /// <param name="strSql"></param>     /// <returns></returns>     public int ExecSqlHandel(string strSql)     {         strSql = strSql + ";SELECT SCOPE_IDENTITY()";         using (SqlConnection pvtSqlCon = new SqlConnection(pvtStrSqlCon))         {             pvtSqlCon.Open();             pvtSqlCom.Connection = pvtSqlCon;

            pvtSqlCom.CommandType = CommandType.Text;             pvtSqlCom.CommandText = strSql;             string sResult = pvtSqlCom.ExecuteScalar().ToString();             pvtSqlCon.Close();             int nResult = 0;             if (!sResult.Equals(""))             {                 nResult = int.Parse(sResult);             }             return nResult;         }     }     public int ExecSqlHandel(string strSql, SqlParameterCollection sqlParamCol)     {         strSql = strSql + ";SELECT SCOPE_IDENTITY()";         using (SqlConnection pvtSqlCon = new SqlConnection(pvtStrSqlCon))         {             pvtSqlCon.Open();             pvtSqlCom.Connection = pvtSqlCon;             pvtSqlCom.CommandType = CommandType.Text;             pvtSqlCom.CommandText = strSql;             for (int i = 0; i < sqlParamCol.Count; i++)             {                 pvtSqlCom.Parameters.Add(sqlParamCol[i].ParameterName, sqlParamCol[i].SqlDbType, sqlParamCol[i].Size, sqlParamCol[i].SourceColumn);                 pvtSqlCom.Parameters[i].Value = sqlParamCol[i].Value;                 pvtSqlCom.Parameters[i].Direction = sqlParamCol[i].Direction;             }             string sResult = pvtSqlCom.ExecuteScalar().ToString();             pvtSqlCom.Parameters.Clear();             pvtSqlCon.Close();             int nResult = string.IsNullOrWhiteSpace(sResult) ? 0 : Convert.ToInt32(sResult);             return nResult;         }     }

    internal DataSet ExecSqlQuery(StringBuilder sbSql)     {         throw new NotImplementedException();     } }