SQLServer存储过程帮助类

SQLServer存储过程帮助类：

using System;
using System.Collections.Generic;
using System.Text;
using System.Data.SqlClient;
using System.Data;
using System.Reflection;
using OfficeOpenXml;
using OfficeOpenXml.Style;
using System.Drawing;
using System.IO;


namespace DBUtility
{
    public class StoreProcedure
    {

        // 连接字符串。
        private string connectionString;
        // 存储过程名称。
        private string storeProcedureName;

        //// <summary>
        /// 初始化 DataAccessHelper.StoreProceduer 对象。
        /// </summary>
        /// <param name="connectionString">数据库连接字符串。</param>

        public StoreProcedure(string connectionString)
        {
            this.connectionString = connectionString;
        }

        public StoreProcedure() { }

        //// <summary>
        /// 初始化 DataAccessHelper.StoreProceduer 对象。
        /// </summary>
        /// <param name="connectionString">数据库连接字符串。</param>
        /// <param name="storeProcedureName">存储过程名称。</param>
        public StoreProcedure(string storeProcedureName, string connectionString)
        {
            this.connectionString = connectionString;
            this.storeProcedureName = storeProcedureName;
        }

        //// <summary>
        /// 获取或设置存储过程名称。
        /// </summary>
        public string StoreProcedureName
        {
            get { return this.storeProcedureName; }
            set { this.storeProcedureName = value; }
        }

        //// <summary>
        /// 执行操作类（Insert/Delete/Update）存储过程。
        /// </summary>
        /// <param name="paraValues">传递给存储过程的参数值列表。</param>
        /// <returns>受影响的行数。</returns>
        public int ExecuteNonQuery(params object[] paraValues)
        {

            using (SqlConnection connection = new SqlConnection(this.connectionString))
            {

                SqlCommand command = this.CreateSqlCommand(connection);

                try
                {
                    this.DeriveParameters(command);
                    this.AssignParameterValues(command, paraValues);
                    connection.Open();
                    int affectedRowsCount = command.ExecuteNonQuery();
                    return affectedRowsCount;
                }
                catch
                {
                    throw;
                }
            }
        }

        //// <summary>
        /// 执行存储过程，返回 System.Data.DataTable。
        /// </summary>
        /// <param name="paraValues">传递给存储过程的参数值列表。</param>
        /// <returns>包含查询结果的 System.Data.DataTable。</returns>
        public DataTable ExecuteDataTable(params object[] paraValues)
        {

            using (SqlConnection connection = new SqlConnection(this.connectionString))
            {

                SqlCommand command = this.CreateSqlCommand(connection);

                try
                {
                    this.DeriveParameters(command);
                    this.AssignParameterValues(command, paraValues);
                    SqlDataAdapter adapter = new SqlDataAdapter(command);
                    DataTable dataTable = new DataTable();
                    adapter.Fill(dataTable);
                    return dataTable;
                }
                catch
                {
                    throw;
                }
            }
        }

        //// <summary>
        /// 执行存储过程，填充指定的 System.Data.DataTable。
        /// </summary>
        /// <param name="dataTable">用于填充查询结果的 System.Data.DataTable。</param>
        /// <param name="paraValues">传递给存储过程的参数值列表。</param>
        public void ExecuteFillDataTable(DataTable dataTable, params object[] paraValues)
        {

            using (SqlConnection connection = new SqlConnection(this.connectionString))
            {

                SqlCommand command = this.CreateSqlCommand(connection);

                try
                {
                    this.DeriveParameters(command);
                    this.AssignParameterValues(command, paraValues);
                    connection.Open();
                    SqlDataAdapter adapter = new SqlDataAdapter(command);
                    adapter.Fill(dataTable);
                }
                catch
                {
                    throw;
                }
            }
        }

        //// <summary>
        /// 执行存储过程返回 System.Data.SqlClient.SqlDataReader，
        /// 在 System.Data.SqlClient.SqlDataReader 对象关闭时，数据库连接自动关闭。
        /// </summary>
        /// <param name="paraValues">传递给存储过程的参数值列表。</param>
        /// <returns>包含查询结果的 System.Data.SqlClient.SqlDataReader 对象。</returns>
        public SqlDataReader ExecuteDataReader(params object[] paraValues)
        {

            using (SqlConnection connection = new SqlConnection(this.connectionString))
            {

                SqlCommand command = this.CreateSqlCommand(connection);

                try
                {
                    this.DeriveParameters(command);
                    this.AssignParameterValues(command, paraValues);
                    connection.Open();
                    return command.ExecuteReader(CommandBehavior.CloseConnection);
                }
                catch
                {
                    throw;
                }
            }
        }

        //// <summary>
        /// 执行查询，并返回查询所返回的结果集中第一行的第一列。忽略其他列或行。
        /// </summary>
        /// <param name="paraValues">传递给存储过程的参数值列表。</param>
        /// <returns>结果集中第一行的第一列或空引用（如果结果集为空）。</returns>
        public object ExecuteScalar(params object[] paraValues)
        {

            using (SqlConnection connection = new SqlConnection(this.connectionString))
            {

                SqlCommand command = this.CreateSqlCommand(connection);

                try
                {
                    this.DeriveParameters(command);
                    this.AssignParameterValues(command, paraValues);
                    connection.Open();
                    object result = command.ExecuteScalar();
                    //string r = command.Parameters[1].Value.ToString();
                    return result;
                }
                catch
                {
                    throw;
                }
            }
        }

        //// <summary>
        /// 从在 System.Data.SqlClient.SqlCommand 中指定的存储过程中检索参数信息并填充指定的
        /// System.Data.SqlClient.SqlCommand 对象的 System.Data.SqlClient.SqlCommand.Parameters 集  合。
        /// </summary>
        /// <param name="sqlCommand">将从其中导出参数信息的存储过程的 System.Data.SqlClient.SqlCommand 对象。</param>
        internal void DeriveParameters(SqlCommand sqlCommand)
        {
            try
            {
                sqlCommand.Connection.Open();
                SqlCommandBuilder.DeriveParameters(sqlCommand);
                sqlCommand.Connection.Close();
            }
            catch
            {
                if (sqlCommand.Connection != null)
                {
                    sqlCommand.Connection.Close();
                }
                throw;
            }
        }

        // 用指定的参数值列表为存储过程参数赋值。
        private void AssignParameterValues(SqlCommand sqlCommand, params object[] paraValues)
        {
            if (paraValues != null)
            {
                if ((sqlCommand.Parameters.Count - 1) != paraValues.Length)
                {
                    throw new ArgumentNullException("The number of parameters does not match number of values for stored procedure.");
                }
                for (int i = 0; i < paraValues.Length; i++)
                {
                    sqlCommand.Parameters[i + 1].Value = (paraValues[i] == null) ? DBNull.Value : paraValues[i];
                }
            }
        }

        // 创建用于执行存储过程的 SqlCommand。
        private SqlCommand CreateSqlCommand(SqlConnection connection)
        {

            SqlCommand command = new SqlCommand(this.storeProcedureName, connection);
            command.CommandType = CommandType.StoredProcedure;

            return command;
        }

        //-------------------------------------这一部分是我完善的,因为没有执行后返回存储过程中的返回值的函数-----------------------

        /// <summary>
        /// 执行存储过程,返回存储过程定义的返回值,注意存储过程中参数(paraValues)如果为返回值赋为空,其它值位置对应好
        /// </summary>
        /// <param name="output">返回存储过程中定义的返回值数组</param>
        /// <param name="outParaNum">存储过程中返回值的个数</param>
        /// <param name="paraValues">存储过程全部参数值</param>

        public void ExecProcOutput(out object[] output, int outParaNum, params object[] paraValues)
        {
            using (SqlConnection connection = new SqlConnection(this.connectionString))
            {

                SqlCommand command = this.CreateSqlCommand(connection);
                output = new object[outParaNum];//存储过程中返回值的个数
                try
                {
                    this.DeriveParameters(command);
                    this.AssignParameterValues(command, paraValues);
                    connection.Open();
                    command.ExecuteNonQuery();
                    for (int i = 0; i < outParaNum; i++)//将存储过程返回的参数值返回到程序中
                    {
                        output[i] = command.Parameters[1].Value;
                    }
                }
                catch
                {
                    throw;
                }
            }
        }
    }
}

简单举例调用：

 DataTable dt=GetDataQuickly("GetData", beginTime, overTime);

public DataTable GetDataQuickly(string procName,string beginTime,string overTime) {

try
        {
        string connString = System.Configuration.ConfigurationManager.AppSettings["ConnectionString"].ToString();
        StoreProcedure sp = new StoreProcedure(procName, connString);//类的对象
        Object[] paraValues = new object[2];
        paraValues[0] = beginTime;//从第二个参数开始赋值
        paraValues[1] = overTime;
        DataTable dt = sp.ExecuteDataTable(paraValues);

        showResult.DataSource = dt;
        showResult.DataBind();
        return dt;
        }
        catch (Exception)
        {
            Response.Write("系统繁忙，稍后重试.....");
            return null;
        }
    }