基于C#+MySQL开发的小型宾馆管理系统设计与实现

资源下载地址：https://download.csdn.net/download/sheziqiong/85795103
资源下载地址：https://download.csdn.net/download/sheziqiong/85795103

问题

本案例实现一个小型的宾馆管理系统，满足一般小型旅馆的日程管理需要。完成的功能：

客房管理、客户管理、客户入住和客户结算、系统功能。
客房（房间）管理：对宾馆拥有的房间进行登记，描述房间的详细信息，提供查询、新建、修改和删除等功能。
客户管理：对宾馆登记的客户进行管理，描述客户的详细信息，提供查询、新建、修改和删除等功能。
3.客户入住：当顾客要求入住宾馆时，客户指定要入住的房间类型和其他要求，就可以对客房的入住情况进行查询，并展示房间的信息。选择符合自己要求的客房，便可办理入住手续。
客户结算：当入住的客户要求退房时，提供指定的房间号或用户名，用户可进行结算退房手续。
对入住的个人或者历史所有入住信息的查询。
登录系统，以及帐号密码修改功能。

分析

根据系统的功能划分和实现的方便，我们将整个程序分为三层：数据层、业务层和界面层。数据层负责对数据库进行操作，包括向表中插入数据、更新数据、查询数据和删除数据。业务层负责把界面上的各种操作传达给数据层。界面层主要负责界面的设计，包括控件的位置和外观等设置、实时反映系统的变化情况。

数据库表的设计

根据程序的功能得出数据实体，进行数据库设计分析，确定以下数据表，如图所示：

图1 客房表结构

图2 住客表结构

图3 入住表结构

图4 用户表结构

方案实现：

在解决方案中添加3个项目，分别代表数据层、业务层和界面层。因为房间和住户对象的实现方式类似，以下以客房类为示例，讲解实现过程：

HotelManagementBLL. Room类的实现

该类主要实现客房的业务逻辑，如：添加、删除、修改和查找客房。具体代码如下所示：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Windows.Forms;namespace HotelManagementBLL
{public class Room{private DataGridView _dgv;public Room(DataGridView dgr){_dgv = dgr;}public Room(){} public void UpdateDataGrid(){DataSet objDataSet = HotelManagementDAL.Room.FillByAllRoom(); this._dgv.DataSource = objDataSet.Tables[0];}//添加房间public void Add(string name, decimal price, string kind, string remark){HotelManagementDAL.Room obj = new HotelManagementDAL.Room();if (obj.GetDataReaderByName(name)){MessageBox.Show("该房间名已经存在" + name + "，请重新输入！", "课程已存在", MessageBoxButtons.OK, MessageBoxIcon.Error);}else{if (HotelManagementDAL.Room.Add(name, price, kind, remark) > 0){ UpdateDataGrid();MessageBox.Show("成功添加房间信息！", "操作成功", MessageBoxButtons.OK, MessageBoxIcon.Information);}else{ MessageBox.Show("添加房间信息失败！", "操作失败", MessageBoxButtons.OK, MessageBoxIcon.Information);}}}//修改房间信息public void Update(int id, string name, decimal price, string kind, string state, string remark){ HotelManagementDAL.Room objRoom = new HotelManagementDAL.Room(name);objRoom.RoomID = id;objRoom.RoomName = name;objRoom.RoomPrice = price;objRoom.RoomKind = kind;objRoom.RoomState = state;objRoom.Remark = remark;if (objRoom.Update() > 0){UpdateDataGrid();MessageBox.Show("修改房间信息成功！", "操作成功", MessageBoxButtons.OK, MessageBoxIcon.Information);}else{MessageBox.Show("更新操作失败！", "操作失败", MessageBoxButtons.OK, MessageBoxIcon.Information);}}//删除房间public void Delete(){string roomName = this._dgv.CurrentRow.Cells["roomName"].Value.ToString();if (DialogResult.Yes == MessageBox.Show("确认删除房间：' " + roomName + " '吗?\n删除房间，将同时删除与该房间有相关的所有房间信息，要继续吗？", "删除确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question)){HotelManagementDAL.Room objRoom = new HotelManagementDAL.Room(roomName);if (objRoom.Delete() > 0){UpdateDataGrid();MessageBox.Show("成功删除房间" + roomName + " '!", "操作成功", MessageBoxButtons.OK, MessageBoxIcon.Information);}else{MessageBox.Show("删除操作失败 " + roomName + " '!", "操作失败", MessageBoxButtons.OK, MessageBoxIcon.Information);}}}//房间查询public void Search(string roomName,decimal roomPrice,decimal roomPrice2, string roomKind,string state, bool useMatch){ DataSet objDataSet = HotelManagementDAL.Room.FillByAllRoom();if (useMatch)objDataSet = HotelManagementDAL.Room.SearchByFuzzy(roomName, roomPrice,roomPrice2, roomKind, state);elseobjDataSet = HotelManagementDAL.Room.SearchByPrecision(roomName, roomPrice,roomPrice2, roomKind, state);_dgv.DataSource = objDataSet.Tables[0];if(objDataSet.Tables[0].Rows.Count == 0)MessageBox.Show("没有符合的记录！", "结果", MessageBoxButtons.OK, MessageBoxIcon.Information);elseMessageBox.Show("搜索完毕", "结果", MessageBoxButtons.OK, MessageBoxIcon.Information);              } }
}

HotelManagementDAL. Room类的实现

该类主要实现客房的对象的创建和数据库操作，如根据客房名查询是否有该客房存在、获得所有客房信息记录、以及对客房的添加、删除、修改和查、以及办理住退房的状态修改过操作。具体代码如下所示：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using MySql.Data.MySqlClient;
using System.Data;namespace HotelManagementDAL
{public class Room{private int _roomID;private string _roomName;  private string _roomKind;private decimal _roomPrice; private string _remark;private string _roomState;#region attributepublic int RoomID{get{return _roomID;}set{_roomID = value;}}public string RoomName{get{return _roomName;}set{_roomName = value;}}public string RoomState{get{return _roomState;}set{_roomState = value;}}public string RoomKind{get{return _roomKind;}set{_roomKind = value;}}public decimal RoomPrice{get{return _roomPrice;}set{_roomPrice = value;}}public string Remark{get{return _remark;}set{_remark = value;}}#endregionpublic Room(){ }public Room(string roomName){_roomName = roomName; }//有无该房间public bool GetDataReaderByName(string _roomName){string strSql = "select * from room_management where ROOM_NAME = @roomName"; return MySqlHelper.ExecuteReader(strSql, new MySqlParameter("@roomName", _roomName)).HasRows;}//添加房间信息public static int Add(string _name, decimal _price, string _kind, string _remark){string strSql = "insert into room_management(ROOM_NAME,PRICE,KIND,REMARK,STATE) values(@roomName,@roomPrice,@roomKind,@roomRemark,'未入住')";MySqlParameter[] paras = new MySqlParameter[4];paras[0] = new MySqlParameter("@roomName", _name);paras[1] = new MySqlParameter("@roomPrice", _price);paras[2] = new MySqlParameter("@roomKind", _kind);paras[3] = new MySqlParameter("@roomRemark", _remark);return MySqlHelper.ExecuteNonQuery(strSql, paras);}//修改房间信息public int Update(){string strSql = "update room_management set ROOM_NAME = @roomName, PRICE = @roomPrice, KIND = @roomKind ,STATE = @roomState ,REMARK = @roomRemark  where ROOM_ID = @roomID";MySqlParameter[] paras = new MySqlParameter[6];paras[0] = new MySqlParameter("@roomName", _roomName);paras[1] = new MySqlParameter("@roomPrice", _roomPrice);paras[2] = new MySqlParameter("@roomKind", _roomKind);paras[3] = new MySqlParameter("@roomRemark", _remark);paras[4] = new MySqlParameter("@roomID", _roomID);paras[5] = new MySqlParameter("@roomState", _roomState);return MySqlHelper.ExecuteNonQuery(strSql, paras);}//办理入住public int CheckIn(){string strSql = "update room_management set STATE = '入住'  where ROOM_NAME = @roomName";MySqlParameter[] paras = new MySqlParameter[1];paras[0] = new MySqlParameter("@roomName", _roomName);return MySqlHelper.ExecuteNonQuery(strSql, paras);} //办理退房public int CheckOut(){string strSql = "update room_management set STATE = '未入住'  where ROOM_NAME = @roomName";MySqlParameter[] paras = new MySqlParameter[1];paras[0] = new MySqlParameter("@roomName", _roomName);return MySqlHelper.ExecuteNonQuery(strSql, paras);}//按信息模糊查找public static DataSet SearchByFuzzy(string roomName, decimal roomPrice,decimal roomPrice2, string roomKind, string roomState){string strSql = "SELECT * FROM room_management where ROOM_NAME LIKE @roomName and  PRICE  BETWEEN  @roomPrice AND @roomPrice2 and KIND LIKE @roomKind and STATE LIKE @roomState";MySqlParameter[] paras = new MySqlParameter[5];paras[0] = new MySqlParameter("@roomName",  '%' + roomName + '%' );paras[1] = new MySqlParameter("@roomPrice", roomPrice);paras[2] = new MySqlParameter("@roomKind", '%' + roomKind + '%');if (roomState == "")roomState = "%";paras[3] = new MySqlParameter("@roomState",  roomState );paras[4] = new MySqlParameter("@roomPrice2", roomPrice2);DataSet ds = MySqlHelper.GetDataSet(strSql,paras); return ds; } //按信息精确查找public static DataSet SearchByPrecision(string roomName, decimal roomPrice, decimal roomPrice2, string roomKind, string roomState){StringBuilder strSql = new StringBuilder("SELECT * FROM room_management where PRICE  BETWEEN  @roomPrice AND @roomPrice2 and");MySqlParameter[] paras = new MySqlParameter[5]; if (roomName == "")strSql.Append(" ROOM_NAME LIKE '%' ");elsestrSql.Append(" ROOM_NAME = @roomName ");if (roomKind == "")strSql.Append(" AND KIND LIKE '%' ");elsestrSql.Append(" AND KIND = @roomKind ");if (roomState == "")strSql.Append(" AND STATE LIKE '%' ");elsestrSql.Append(" AND STATE = @roomState ");paras[0] = new MySqlParameter("@roomName", roomName);paras[1] = new MySqlParameter("@roomPrice", roomPrice);paras[2] = new MySqlParameter("@roomKind", roomKind);if (roomState == "")roomState = "%";paras[3] = new MySqlParameter("@roomState", roomState);paras[4] = new MySqlParameter("@roomPrice2", roomPrice2); DataSet ds = MySqlHelper.GetDataSet(strSql.ToString(), paras);return ds; } //删除房间public int Delete(){//删除房间信息 StringBuilder strSql = new StringBuilder();strSql.Append("delete from room_management where  ROOM_NAME = @roomNAME ;");//删除 入住信息strSql.Append("delete from check_in where ROOM_NAME = @roomNAME;");return MySqlHelper.ExecuteNonQuery(strSql.ToString(), new MySqlParameter("@roomNAME", _roomName));}//得到所有房间信息public static DataSet FillByAllRoom(){string strSql = "select * from room_management"; DataSet ds = MySqlHelper.GetDataSet(strSql);return ds;}}
}

界面设计：

系统的界面除去主运行界面外，还有客房、住客等对象相应的管理、添加、查找和修改等界面，以及入住和退房的界面，具体的界面如下图所示：

图5 登录界面

图6 主界面

图7 住房管理界面

图7 客房录入界面

图8 客房信息修改界面

图9 客房信息查询界面

图9 住客管理界面

图10 住客信息录入界面

图11 住客信息修改界面

图11 住客信息查询界面

图13 入住管理界面

图14 退房管理界面

图15 住房记录界面

图16 密码修改界面

资源下载地址：https://download.csdn.net/download/sheziqiong/85795103
资源下载地址：https://download.csdn.net/download/sheziqiong/85795103