目录

1.系统概述

2.系统功能

3.所用数据库表

4.具体功能实现

4.1 登录功能

4.2 欢迎页面

4.3 客房列表功能

4.4 查看房型详细信息

4.5 修改客房信息

​ 4.6 添加客房信息

4.7 住房登记

4.8 退房登记

4.9 会员信息详情


1.系统概述

此次系统功能较为简单。开发模式为:JSP+Servlet+JavaBean,另外需要MyElicpe、MySQL、Tomact服务器等。

2.系统功能

本系统主要功能是管理员进行日常酒店管理操作,例如登记住房信息、查询客房信息、修改客房信息、删除客房信息、添加客房信息,另外是结算退房功能。

3.所用数据库表

1.user(员工表)

2.member(会员表)

3.house(房型表)

4.具体功能实现

4.1 登录功能

login.jsp

<body background="image/3.jpg">
	<form name="form1" action="loginservlet?method=login" method="post">
		<p id=jerry>酒店管理系统</p>
		<table width="300" border="1" align="center" height="200">
			<tr id="tb">
				<td colspan="2" align="center">系统登录</td>
			</tr>
			<tr id="tb">
				<td>工号</td>
				<td><input type="text" name="username" size="20"></td>
			</tr>
			<tr id="tb">
				<td>密码</td>
				<td><input type="password" name="password" size="20"></td>
			</tr>
			<tr>
			</tr>
			<tr id="tb">
				<td colspan="2"><input type="submit" name="submit" value="登录">
					<a href="register.jsp">注册新用户</a></td>
			</tr>
		</table>
	</form>

</body>

 register.jsp

<body background="image/3.jpg">
	<form name="form1" action="loginservlet?method=register" method="post">
		<p id=jerry>酒店管理系统</p>
		<table width="300" border="1" align="center">
			<tr>
				<td colspan="2" align="center">注册窗口</td>
			</tr>
			<tr>
				<td>用户名</td>
				<td><input type="text" name="username"></td>
			</tr>
			<tr>
				<td>密码</td>
				<td><input type="password" name="password1"></td>
			</tr>
			<tr>
				<td>确认密码</td>
				<td><input type="password" name="password2"></td>
			</tr>
			<tr>
				<td>Email</td>
				<td><input type="text" name="email"></td>
			</tr>
			<tr>
				<td colspan="2"><input type="submit" name="submit" value="注册">
					<a href="login.jsp">返回</a></td>
			</tr>
		</table>
	</form>
</body>

loginServlet

@WebServlet(urlPatterns="/loginservlet")
public class loginServlet extends HttpServlet{
	@Override
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		String method=request.getParameter("method");
		if("login".equals(method)){
			doLogin(request,response);
		}
		else if("logout".equals(method)){
			doLogout(request,response);
		}
		else if("register".equals(method)){
			doAdd(request,response);
		}

	}
	//用户注册
	private void doAdd(HttpServletRequest request, HttpServletResponse response)throws ServletException,IOException {
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		String username=request.getParameter("username");
		String password1=request.getParameter("password1");
		String password2=request.getParameter("password2");
		String email=request.getParameter("email");
		if(!"".equals(username)&&password1.equals(password2)){
			UserBean user_bean=new UserBean();
			user_bean.add(username, password1, email);
			System.out.println("注册成功!");
			response.sendRedirect("login.jsp");
		}
		else {
			System.out.println("注册失败!");
			response.sendRedirect("login.jsp");
		}
	}
	//登录
	private void doLogin(HttpServletRequest request, HttpServletResponse response)throws ServletException,IOException {
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		String username=request.getParameter("username");
		String password=request.getParameter("password");
		UserBean user_bean=new UserBean();
		if(user_bean.isExist(username)){
			if(user_bean.valid(username, password)){
				HttpSession session=request.getSession();
				session.setAttribute("username",username);
				System.out.println("登录成功");
				response.sendRedirect("welcome.jsp");
			}
			else {//密码错误
				System.out.println("登录失败1");
				response.sendRedirect("login.jsp");
			}
		}
		else {
			System.out.println("登录失败2");
			response.sendRedirect("login.jsp");
		}
	}
	//退出登录
	protected void doLogout(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		HttpSession session = request.getSession();
		session.removeAttribute("username");
		System.out.println("退出成功");
		response.sendRedirect("login.jsp");
	}
	@Override
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		doGet(request, response);
	}
}

4.2 欢迎页面

 welcome.jsp

<body background="image/3.jpg">

	<table width="100%">
		<p id="ss" class="text">酒店管理系统</p>
		<%
			Calendar cal = Calendar.getInstance();
			SimpleDateFormat format = new SimpleDateFormat("dd日-MM月-yyyy年 HH:mm:ss");
		%>
		<tr>
			<td colspan="2" align="right">登陆成功!欢迎你,<%=(String) session.getAttribute("username")%>
			</td>
			<td align="right">
				<%
					out.println(format.format(cal.getTime()));
				%>
			</td>
		</tr>

		<tr>
			<td colspan="3">
				<hr>
			</td>
		</tr>
		<tr>
			<td><br> <br> <br> <br> <br> <br>
			</td>
		</tr>
		<tr>
			<td colspan="3">
				<form name="form1" action="loginservlet?method=logout" method="post">
					<table width="450" height="300" border="1" align="center" id="tom">
						<tr>
							<th colspan="3" align="center">选择功能</th>
						</tr>
						<tr>
							<td><a class="a" href="pageservlet?method=showHouse">客房列表</a></td>

							<td><a class="a" href="addhouse.jsp">添加客房</a></td>
						</tr>
						<tr>
							<td><a class="a" href="inhouse.jsp">住房登记</a></td>

							<td><a class="a" href="pageservlet?method=showMember">退房登记</a></td>
						</tr>
						<tr>
							<td colspan="3" align="center"><input type="submit"
								name="submit" value="退出"></td>
						</tr>
					</table>
				</form>
			</td>
		</tr>

		</div>
</body>

4.3 客房列表功能

 hotelBean.java

public class hotel {
private String name;//房间名称
private int price;//房间价格
private int amount;//房间价格
private String square;//房间面积
private int people;//房间可住人数
public final static int maxpage=4;
public String getName() {
	return name;
}
public void setName(String name) {
	this.name = name;
}
public int getPrice() {
	return price;
}
public void setPrice(int price) {
	this.price = price;
}
public int getAmount() {
	return amount;
}
public void setAmount(int amount) {
	this.amount = amount;
}
public String getSquare() {
	return square;
}
public void setSquare(String square) {
	this.square = square;
}
public int getPeople() {
	return people;
}
public void setPeople(int people) {
	this.people = people;
}
}

houseDao

public class houseDao {
	DBAccess db=new DBAccess();
	public ArrayList<hotel>allhotel(){//显示全部房间
		ArrayList<hotel>list=new ArrayList<hotel>();
		if(db.createConn()){
			String sql="select * from house";
			try {
				db.query(sql);
				while(db.next()){
					hotel ho=new hotel();
					ho.setName(db.getRs().getString("name"));
					ho.setPrice(db.getRs().getInt("price"));
					ho.setAmount(db.getRs().getInt("amount"));
					ho.setSquare(db.getRs().getString("square"));
					ho.setPeople(db.getRs().getInt("people"));
					list.add(ho);
				}

			} catch (SQLException e) {
				// TODO 自动生成的 catch 块
				e.printStackTrace();
			}
			finally {
				db.closeRs();
				db.closeStm();
				db.closeConn();
			}
		}
		return list;
	}
	public hotel show(String name){//显示房间信息
		hotel ho=new hotel();
		if(db.createConn()){
			String sql="select * from house where name=?";
			try {
				db.pre=db.getConn().prepareStatement(sql);
				db.pre.setString(1, name);
				db.setRs(db.pre.executeQuery());
				if(db.getRs().next()){

					ho.setName(db.getRs().getString("name"));
					ho.setPrice(db.getRs().getInt("price"));
					ho.setAmount(db.getRs().getInt("amount"));
					ho.setSquare(db.getRs().getString("square"));
					ho.setPeople(db.getRs().getInt("people"));
				}
			} catch (SQLException e) {
				// TODO 自动生成的 catch 块
				e.printStackTrace();
			}
			finally {
				db.closeRs();
				if(db.pre!=null){
					try {
						db.pre.close();
					} catch (SQLException e) {
						// TODO 自动生成的 catch 块
						e.printStackTrace();
					}
					db.closeConn();
				}
			}
		}
		return ho;
	}
	public boolean updatehotel(hotel ho) throws Exception{//修改房间  
		boolean flag = false;
		DBAccess db=new DBAccess();
		if(db.createConn()){
			String sql="UPDATE house SET name=?,price=?,amount=?,square=?,people=? where name=?";
			db.pre=db.getConn().prepareStatement(sql);
			db.pre.setString(1, ho.getName());
			db.pre.setInt(2, ho.getPrice());
			db.pre.setInt(3, ho.getAmount());
			db.pre.setString(4, ho.getSquare());
			db.pre.setInt(5, ho.getPeople());
			db.pre.setString(6, ho.getName());
			if(db.pre.executeUpdate() > 0) flag = true;
		}
		db.closeRs();
		db.closeStm();
		db.pre.close();
		db.closeConn();
		return flag;
	}
	public boolean updateamount(hotel ho){//更新房间数量
		boolean flag = false;
		DBAccess db=new DBAccess();
		if(db.createConn()){
			String sql="update house set amount=? where name=?";
			try {
				db.pre=db.getConn().prepareStatement(sql);
				db.pre.setInt(1,ho.getAmount() );
				db.pre.setString(2, ho.getName());
				if(db.pre.executeUpdate()>0) flag=true;
			} catch (SQLException e) {
				// TODO 自动生成的 catch 块
				e.printStackTrace();
			}finally {
				try {
					db.pre.close();
				} catch (SQLException e) {
					// TODO 自动生成的 catch 块
					e.printStackTrace();
				}
				db.closeConn();
			}
		}
		return flag;
	}
	public boolean add(hotel ho) throws Exception{//添加房间
		boolean flag = false;
		DBAccess db=new DBAccess();
		if(db.createConn()){
			String sql = "INSERT INTO house(name,price,amount,square,people) VALUES(?,?,?,?,?)";
			db.pre=db.getConn().prepareStatement(sql);
			db.pre.setString(1, ho.getName());
			db.pre.setInt(2, ho.getPrice());
			db.pre.setInt(3, ho.getAmount());
			db.pre.setString(4, ho.getSquare());
			db.pre.setInt(5, ho.getPeople());
			if(db.pre.executeUpdate() > 0) flag = true;
		}
		db.closeRs();
		db.closeStm();
		db.pre.close();
		db.closeConn();
		return flag;
	}
	public boolean delHouse(String name) throws Exception{//删除房间
		DBAccess db=new DBAccess();
		boolean flag = false;
		String sql="DELETE FROM house WHERE name = ?";
		if(db.createConn()){
			db.pre=db.getConn().prepareStatement(sql);
			db.pre.setString(1, name);
			if(db.pre.executeUpdate()>0)flag=true;
		}
		db.closeConn();
		db.closeStm();
		db.pre.close();
		db.closeRs();
		return flag;
	}
	public ArrayList<hotel> findAll(Integer page){//分页查询信息
		DBAccess  db=new DBAccess();
		ArrayList<hotel> list=new ArrayList<hotel>();
		
		try {
			if(db.createConn()){
				String sql="select  * from house limit ?,? ";
				db.pre=db.getConn().prepareStatement(sql);
				db.pre.setInt(1, (page-1)*hotel.maxpage);
				db.pre.setInt(2, hotel.maxpage);
				db.setRs(db.pre.executeQuery());
				while(db.getRs().next()){
					hotel ho=new hotel();
					ho.setName(db.getRs().getString("name"));
					ho.setPrice(db.getRs().getInt("price"));
					ho.setAmount(db.getRs().getInt("amount"));
					ho.setSquare(db.getRs().getString("square"));
					ho.setPeople(db.getRs().getInt("people"));
					list.add(ho);
				}
				db.closeRs();
				db.pre.close();
				db.closeConn();
			}
		} catch( SQLException e) {
			e.printStackTrace();
		}
		return list;
	}
	public int countPage(){//查询记录总数
		DBAccess  db=new DBAccess();
		int count=0;
		try {
			if(db.createConn()){
				String sql="select count(*) from house  ";
				db.pre=db.getConn().prepareStatement(sql);
				db.setRs(db.pre.executeQuery());
				if(db.getRs().next()){
					count=db.getRs().getInt(1);
				}
			}
		} catch( SQLException e) {
			e.printStackTrace();
		}
		finally {
			db.closeRs();
			try {
				if(db.pre!=null){
					db.pre.close();
				}
			} catch (Exception e2) {
				// TODO: handle exception
			}
			db.closeConn();
		}
		return count;
	}
}

housemanageServlet

@WebServlet(urlPatterns="/houseServlet")
public class housemanageServlet extends HttpServlet{
	@Override
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		String method=request.getParameter("method");
		if("show".equals(method)){
			doShow(request,response);
		}
		else if("add".equals(method)){
			doAdd(request,response);
		}
		else if("show2".equals(method)){
			doShow2(request,response);
		}
		else if("update".equals(method)){
			doUpdate(request,response);
		}
		else if("update2".equals(method)){
			doUpdate2(request,response);
		}
		else if("delete".equals(method)){
			doDel(request,response);
		}

	}
	//删除客房
	private void doDel(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		String name=request.getParameter("category");
		houseDao house=new houseDao();
		try {
			if(house.delHouse(name)){
				System.out.println("删除成功!");
				response.sendRedirect("showhouse.jsp");//删除之后无法立马更新数据
				return;
			}
			else {
				System.out.println("删除失败!");
				response.sendRedirect("showhouse.jsp");
			}
		} catch (Exception e) {
			// TODO 自动生成的 catch 块
			e.printStackTrace();
		}
	}
	//修改客房信息
	private void doUpdate2(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException  {
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		String name=request.getParameter("name");
		int price=Integer.parseInt(request.getParameter("price"));
		int amount=Integer.parseInt(request.getParameter("amount"));
		String square=request.getParameter("square");
		int people=Integer.parseInt(request.getParameter("people"));
		houseDao house=new houseDao();
		hotel ho=new hotel();
		ho.setName(name);
		ho.setPrice(price);
		ho.setAmount(amount);
		ho.setSquare(square);
		ho.setPeople(people);
		try {
			if(house.updatehotel(ho)){
				System.out.println("修改成功!");
				response.sendRedirect("showhouse.jsp");
				return;
			}
			else {
				System.out.println("修改失败!");
				response.sendRedirect("showhouse.jsp");
			}
		} catch (Exception e) {
			// TODO 自动生成的 catch 块
			e.printStackTrace();
		}
	}
	//用来重定向到修改页面
	private void doUpdate(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//重定向到 update.jsp
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		String name=request.getParameter("category");
		houseDao house=new houseDao();
		hotel ho=house.show(name);
		request.setAttribute("ho", ho);
		request.getRequestDispatcher("update.jsp").forward(request, response);
	}
	//显示客房具体信息
	private void doShow2(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		String name=request.getParameter("category");
		houseDao house=new houseDao();
		hotel ho=house.show(name);
		HttpSession session=request.getSession();
		session.setAttribute("ho", ho);
		response.sendRedirect("showhouse2.jsp");
	}
	//添加客房
	private void doAdd(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		String name=request.getParameter("name");
		int price=Integer.parseInt(request.getParameter("price"));
		int amount=Integer.parseInt(request.getParameter("amount"));
		String square=request.getParameter("square");
		int people=Integer.parseInt(request.getParameter("people"));
		houseDao house=new houseDao();
		hotel ho=new hotel();
		if(!"".equals(name)&&!"".equals(square)&&0!=price&&0!=amount&&people!=0){
			ho.setName(name);
			ho.setPrice(price);
			ho.setAmount(amount);
			ho.setSquare(square);
			ho.setPeople(people);
		}
		else {
			System.out.println("添加失败,信息不全");
			response.sendRedirect("addhouse.jsp");
		}
		try {
			if(house.add(ho)){
				System.out.println("添加成功!");
				response.sendRedirect("addhouse.jsp");
			}
		} catch (Exception e) {
			// TODO 自动生成的 catch 块
			e.printStackTrace();
		}
	}
	//显示所有客房信息
	private void doShow(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
		// TODO 自动生成的方法存根
		houseDao house_dao=new houseDao();
		ArrayList<hotel> house=house_dao.allhotel();
		HttpSession session=request.getSession();
		session.setAttribute("house", house);
		response.sendRedirect("showhouse.jsp");
	}
	@Override
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		doGet(request, response);
	}
}

showhouse.jsp(全部)

<body background="image/3.jpg">
	<table width="100%">
		<p id="ss">酒店管理系统</p>
		<%
			Calendar cal = Calendar.getInstance();
			SimpleDateFormat format = new SimpleDateFormat("dd日-MM月-yyyy年 HH:mm:ss");
		%>
		<tr>
			<td colspan="2" align="right">登陆成功!欢迎你,<%=(String) session.getAttribute("username")%>
			</td>
			<td align="right">
				<%
					out.println(format.format(cal.getTime()));
				%>
			</td>
		</tr>

		<tr>
			<td colspan="3">
				<hr>
			</td>
		</tr>
		<tr>
			<td><a href="welcome.jsp">返回</a></td>
		</tr>
		<tr>
			<td><br> <br> <br> <br> <br> <br>
			</td>
		</tr>
	</table>
	<h2 align="center">所有客房信息</h2>
	<table width="400" height="200" border="1" align="center">
		<tr>
			<td align="center">房间类型</td>
			<td align="center">房型价格</td>
			<td align="center">可预定数量</td>
			<td align="center">操作</td>
		</tr>
		<%
			for (hotel ho : hotels) {
		%>
		<tr>
			<td align="center"><%=ho.getName()%></td>
			<td align="center"><%=ho.getPrice()%>¥</td>
			<td align="center"><%=ho.getAmount()%></td>
			<td><a
				href="houseServlet?method=show2&category=<%=ho.getName()%>">查看</a>
				<a href="houseServlet?method=update&category=<%=ho.getName()%>">修改</a>
				<a href="houseServlet?method=delete&category=<%=ho.getName()%>">删除</a>
			</td>
		</tr>
		<%
			}
		%>
		<tr>
			<td align="center" colspan="6" bgcolor="gray">
				<%--<%=request.getAttribute("bar")  /页 --%> ${bar}/页
			</td>
		</tr>
	</table>
</body>

4.4 查看房型详细信息

4.5 修改客房信息

 4.6 添加客房信息

4.7 住房登记

 memberBean.java

public class member {
private String name;//会员名
private String tel;//手机号
private String category;//房间类型
private String hotelnumber;//房间号
private int people;//入住人数
private String money;//消费
public String getName() {
	return name;
}
public void setName(String name) {
	this.name = name;
}
public String getTel() {
	return tel;
}
public void setTel(String tel) {
	this.tel = tel;
}
public String getCategory() {
	return category;
}
public void setCategory(String category) {
	this.category = category;
}
public String getHotelnumber() {
	return hotelnumber;
}
public void setHotelnumber(String hotelnumber) {
	this.hotelnumber = hotelnumber;
}
public int getPeople() {
	return people;
}
public void setPeople(int people) {
	this.people = people;
}
public String getMoney() {
	return money;
}
public void setMoney(String money) {
	this.money = money;
}

}

 memberDao

public class memberDao {
	DBAccess db=new DBAccess();

	public boolean add(member me) throws Exception{//添加会员
		boolean flag = false;
		if(db.createConn()){
			String sql = "INSERT INTO member(name,tel,category,hotelnumber,people,money) VALUES(?,?,?,?,?,?)";
			db.pre=db.getConn().prepareStatement(sql);
			db.pre.setString(1, me.getName());
			db.pre.setString(2, me.getTel());
			db.pre.setString(3, me.getCategory());
			db.pre.setString(4, me.getHotelnumber());
			db.pre.setInt(5, me.getPeople());
			db.pre.setString(6, me.getMoney());
			if(db.pre.executeUpdate() > 0) flag = true;
		}
		db.closeRs();
		db.closeStm();
		db.pre.close();
		db.closeConn();
		return flag;
	}
	public ArrayList<member> allmember(){//显示所有会员
		ArrayList<member>list=new ArrayList<member>();
		if(db.createConn()){
			String sql="select * from member";
			try {
				db.query(sql);
				while(db.next()){
					member me=new member();
					me.setName(db.getRs().getString("name"));
					me.setTel(db.getRs().getString("tel"));
					me.setCategory(db.getRs().getString("category"));
					me.setHotelnumber(db.getRs().getString("hotelnumber"));
					me.setPeople(db.getRs().getInt("people"));
					me.setMoney(db.getRs().getString("money"));
					list.add(me);
				}
			} catch (SQLException e) {
				// TODO 自动生成的 catch 块
				e.printStackTrace();
			}
			finally {
				db.closeRs();
				db.closeStm();
				db.closeConn();
			}
		}
		return list;
	}
	public member showpersonal(String name){//显示会员详细信息
		member me=new member();
		if(db.createConn()){
			String sql="select * from member where name=?";
			try {
				db.pre=db.getConn().prepareStatement(sql);
				db.pre.setString(1, name);
				db.setRs(db.pre.executeQuery());
				if(db.getRs().next()){

					me.setName(db.getRs().getString("name"));
					me.setTel(db.getRs().getString("tel"));
					me.setCategory(db.getRs().getString("category"));
					me.setHotelnumber(db.getRs().getString("hotelnumber"));
					me.setPeople(db.getRs().getInt("people"));
					me.setMoney(db.getRs().getString("money"));
				}
			} catch (SQLException e) {
				// TODO 自动生成的 catch 块
				e.printStackTrace();
			}
			finally {
				db.closeRs();
				if(db.pre!=null){
					try {
						db.pre.close();
					} catch (SQLException e) {
						// TODO 自动生成的 catch 块
						e.printStackTrace();
					}
					db.closeConn();
				}
			}
		}
		return me;
	}
	public boolean delMember(String tel) throws Exception{//删除会员信息
		DBAccess db=new DBAccess();
		boolean flag = false;
		String sql="DELETE FROM member WHERE tel = ?";
		if(db.createConn()){
			db.pre=db.getConn().prepareStatement(sql);
			db.pre.setString(1, tel);
			if(db.pre.executeUpdate()>0)flag=true;
		}
		db.closeConn();
		db.closeStm();
		db.pre.close();
		db.closeRs();
		return flag;
	}
	public ArrayList<member> findAll(Integer page){//分页查询信息
		DBAccess  db=new DBAccess();
		ArrayList<member> list=new ArrayList<member>();
		
		try {
			if(db.createConn()){
				String sql="select  * from member limit ?,? ";
				db.pre=db.getConn().prepareStatement(sql);
				db.pre.setInt(1, (page-1)*hotel.maxpage);
				db.pre.setInt(2, hotel.maxpage);
				db.setRs(db.pre.executeQuery());
				while(db.getRs().next()){
					member me=new member();
					me.setName(db.getRs().getString("name"));
					me.setTel(db.getRs().getString("tel"));
					me.setCategory(db.getRs().getString("category"));
					me.setHotelnumber(db.getRs().getString("hotelnumber"));
					me.setPeople(db.getRs().getInt("people"));
					me.setMoney(db.getRs().getString("money"));
					list.add(me);
				}
				db.closeRs();
				db.pre.close();
				db.closeConn();
			}
		} catch( SQLException e) {
			e.printStackTrace();
		}
		return list;
	}
	public int countPage(){//查询记录总数
		DBAccess  db=new DBAccess();
		int count=0;
		try {
			if(db.createConn()){
				String sql="select count(*) from member  ";
				db.pre=db.getConn().prepareStatement(sql);
				db.setRs(db.pre.executeQuery());
				if(db.getRs().next()){
					count=db.getRs().getInt(1);
				}
			}
		} catch( SQLException e) {
			e.printStackTrace();
		}
		finally {
			db.closeRs();
			try {
				if(db.pre!=null){
					db.pre.close();
				}
			} catch (Exception e2) {
				// TODO: handle exception
			}
			db.closeConn();
		}
		return count;
	}
}

membermanageServlet

@WebServlet(urlPatterns="/membermanage")
public class membermanageServlet extends HttpServlet{
	@Override
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		String method=request.getParameter("method");
		if("inroom".equals(method)){
			doInroom(request,response);
		}
		else if ("outroom".equals(method)) {
			doOutroom(request,response);
		}
		else if("personalmessage".equals(method)){
			doShowPerMessage(request,response);
		}
		else if("delmember".equals(method)){
			doDelMember(request,response);
		}
	}
	//退房操作
	private void doDelMember(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		String tel=request.getParameter("tel");
		String category=request.getParameter("category");
		houseDao house=new houseDao();
		memberDao member=new memberDao();
		hotel ho=null;
		try {
			if(member.delMember(tel)){
				ho=house.show(category);
				ho.setAmount(ho.getAmount()+1);//获取房型相关信息
				house.updateamount(ho);
				System.out.println("退房成功!");
				response.sendRedirect("welcome.jsp");
				return;
			}
		} catch (Exception e) {
			// TODO 自动生成的 catch 块
			e.printStackTrace();
		}
	}
	//显示会员信息
	private void doShowPerMessage(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		String name=request.getParameter("name");
		memberDao member=new memberDao();
		member mb=member.showpersonal(name);
		HttpSession session=request.getSession();
		session.setAttribute("mb", mb);
		//request.setAttribute("mb", mb);
		response.sendRedirect("showmemberMassage.jsp");
		//request.getRequestDispatcher("showmemberMassage.jsp").forward(request, response);

	}
	//住房登记
	private void doInroom(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		String name=request.getParameter("name");
		String tel=request.getParameter("tel");
		String category=request.getParameter("category");
		String housenumber=request.getParameter("housenumber");
		int people=Integer.parseInt(request.getParameter("people"));
		String money=request.getParameter("money");
		memberDao member =new memberDao();
		houseDao house=new houseDao();
		hotel ho=null;
		if(name!=null&&tel!=null&&category!=null&&housenumber!=null&&people!=0&&money!=null){
			member me=new member();
			me.setName(name);
			me.setTel(tel);
			me.setCategory(category);
			me.setHotelnumber(housenumber);
			me.setPeople(people);
			me.setMoney(money);
			try {
				ho=house.show(category);//根据房间类型获取房间
				if(member.add(me)&&ho.getAmount()>0){
					//System.out.println("添加会员成功!");
					ho.setAmount(ho.getAmount()-1);
					house.updateamount(ho);//更改房间数量
					System.out.println("添加会员成功!");
					response.sendRedirect("welcome.jsp");
				}
				else {
					System.out.println("添加会员失败,没有可用的房间!");
					response.sendRedirect("inhouse.jsp");
				}
			} catch (Exception e) {
				// TODO 自动生成的 catch 块
				e.printStackTrace();
			}
		}
		else {
			System.out.println("添加会员失败,信息不全!");
			response.sendRedirect("inhouse.jsp");
		}
	}
	//退房登记
	private void doOutroom(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
		// TODO 自动生成的方法存根
		memberDao member=new memberDao();
		ArrayList<member> me=member.allmember();
		HttpSession session=request.getSession();
		session.setAttribute("me", me);
		response.sendRedirect("outhouse.jsp");
	}
	@Override
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO 自动生成的方法存根
		request.setCharacterEncoding("utf-8");
		doGet(request, response);
	}
}

4.8 退房登记

4.9 会员信息详情

 

 初入java web很多知识还没有深入,对本系统有很多不足的地方,功能也比较单一,在后面会陆续对本系统功能进一步完善,如有不妥的地方,欢迎大家交流!


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