message.cs

来自「《精通ASP.NET2.0网络应用系统开发》书中的源码」· CS 代码 · 共 136 行

using System;
using System.Data;
using System.Data.SqlClient;
using SQLHelper;

namespace OfficeAutomatization
{
	/// <summary>
	/// Message 的摘要说明。
	/// </summary>
	public class Message
	{
		/// <summary>
		/// 根据用户ID获取用户的所有短信
		/// </summary>
		/// <param name="nStaffID"></param>
		/// <returns></returns>
		public SqlDataReader GetMessageByUser(int nUserID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///定义保存从数据库获取的结果的DataReader
			SqlDataReader dr = null;

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
				sqlHelper.CreateInParam("@UserID",SqlDbType.Int,4,nUserID)
			};

			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_GetMsgByUser", paramList, out dr);
			}
			catch (Exception ex)
			{
				///抛出执行数据库异常
				SystemError.CreateErrorLog(ex.Message);
				throw new Exception(ex.Message, ex);
			}

			///返回从数据库获取的结果
			return (dr);			
		}

		/// <summary>
		/// 根据短信ID获取短信
		/// </summary>
		/// <param name="nStaffID"></param>
		/// <returns></returns>
		public SqlDataReader GetSingleMsg(int nMessageID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///定义保存从数据库获取的结果的DataReader
			SqlDataReader dr = null;

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
				sqlHelper.CreateInParam("@MessageID",SqlDbType.Int,4,nMessageID)
			};

			try
			{
				///执行存储过程
				sqlHelper.RunProc("Pr_GetSingleMsg", paramList, out dr);
			}
			catch (Exception ex)
			{
				///抛出执行数据库异常
				SystemError.CreateErrorLog(ex.Message);
				throw new Exception(ex.Message, ex);
			}

			///返回从数据库获取的结果
			return (dr);
		}

		/// <summary>
		/// 发送短消息
		/// </summary>
		/// <param name="sender">发送者用户名</param>
		/// <param name="receivers">接受者用户名</param>		
		public int SendMsg(string sSender,string sReceiver,string sBody, string sMobile)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
				sqlHelper.CreateInParam("@Sender",SqlDbType.VarChar,100,sSender),
				sqlHelper.CreateInParam("@Receiver",SqlDbType.VarChar,100,sReceiver),
				sqlHelper.CreateInParam("@Body",SqlDbType.VarChar,8000,sBody),
				sqlHelper.CreateInParam("@Mobile",SqlDbType.VarChar,100,sMobile)
			};

			try
			{
				///执行存储过程
				return(sqlHelper.RunProc("Pr_AddMessage", paramList));
			}
			catch (Exception ex)
			{
				///抛出执行数据库异常
				SystemError.CreateErrorLog(ex.Message);
				throw new Exception(ex.Message, ex);
			}		
		}

		public int UpdateMsgRead(int nMessageID)
		{
			///定义类SQLHelper
			SQLHelper.SQLHelper sqlHelper = new SQLHelper.SQLHelper();

			///创建访问数据库的参数			
			SqlParameter[] paramList = {
				sqlHelper.CreateInParam("@MessageID",SqlDbType.Int,4,nMessageID)
			};

			try
			{
				///执行存储过程
				return(sqlHelper.RunProc("Pr_UpdateMsgRead", paramList));
			}
			catch (Exception ex)
			{
				///抛出执行数据库异常
				SystemError.CreateErrorLog(ex.Message);
				throw new Exception(ex.Message, ex);
			}
		}
	}
}