十:javaee会议管理系统实现过程之会议室管理功能的代码(完整详细有注释)
2024-05-28 11:43:43
目录
1.Model层实现
2.查看所有会议室
3.查看详情并修改
4.添加会议室
1.Model层实现
业务逻辑数据层,
VO/DAO/Service
vo类
package com.meeting.vo;public class MeetingRoom {private Integer roomid;private Integer roomnum;private Integer capacity;//容量private String roomname;//名称private String status;//状态:启用/停用private String description;//描述public MeetingRoom() {super();}public MeetingRoom(Integer roomid) {super();this.roomid = roomid;}public MeetingRoom(Integer roomnum, String roomname, Integer capacity,String status, String description) {super();this.roomnum = roomnum;this.capacity = capacity;this.roomname = roomname;this.status = status;this.description = description;}public MeetingRoom(Integer roomid, Integer roomnum, String roomname, Integer capacity,String status, String description) {super();this.roomid = roomid;this.roomnum = roomnum;this.capacity = capacity;this.roomname = roomname;this.status = status;this.description = description;}public Integer getRoomid() {return roomid;}public void setRoomid(Integer roomid) {this.roomid = roomid;}public Integer getRoomnum() {return roomnum;}public void setRoomnum(Integer roomnum) {this.roomnum = roomnum;}public Integer getCapacity() {return capacity;}public void setCapacity(Integer capacity) {this.capacity = capacity;}public String getRoomname() {return roomname;}public void setRoomname(String roomname) {this.roomname = roomname;}public String getStatus() {return status;}public void setStatus(String status) {this.status = status;}public String getDescription() {return description;}public void setDescription(String description) {this.description = description;}@Overridepublic String toString() {return "MeetingRoom [roomid=" + roomid + ", roomnum=" + roomnum+ ", capacity=" + capacity + ", roomname=" + roomname+ ", status=" + status + ", description=" + description + "]";}}
DAO类
package com.meeting.dao;import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;import com.meeting.util.ConnectionFactory;
import com.meeting.vo.Employee;
import com.meeting.vo.MeetingRoom;public class MeetingRoomDAO {
// DAO类关联连接工厂类private Connection conn;/*** 添加一个会议室,status默认为0，表示未被占用。当为1时，表示被占用* @param meetingroom*/public void insert(MeetingRoom meetingroom){conn=ConnectionFactory.getConnection();String sql="insert into meetingroom"+"(roomnum,roomname,capacity,status,description)" +" values(?,?,?,?,?)";try { PreparedStatement pstmt = conn.prepareStatement(sql);pstmt.setInt(1,meetingroom.getRoomnum());pstmt.setString(2,meetingroom.getRoomname());pstmt.setInt(3,meetingroom.getCapacity());pstmt.setString(4,meetingroom.getStatus());pstmt.setString(5,meetingroom.getDescription());pstmt.executeUpdate(); } catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}finally{ConnectionFactory.closeConnection();} }/*** 根据ID查询会议室* @param roomid* @return*/public MeetingRoom selectByRoomid(int roomid){conn=ConnectionFactory.getConnection();MeetingRoom meetingroom=null; try {PreparedStatement st=null;String sql="select * from meetingroom where roomid="+roomid+"";st = conn.prepareStatement(sql);ResultSet rs =st.executeQuery(sql);if(rs.next()==true){meetingroom=new MeetingRoom();meetingroom.setRoomid(Integer.parseInt(rs.getString("roomid")));meetingroom.setRoomnum(Integer.parseInt(rs.getString("roomnum")));meetingroom.setCapacity(Integer.parseInt(rs.getString("capacity")));meetingroom.setRoomname(rs.getString("roomname"));meetingroom.setStatus(rs.getString("status"));meetingroom.setDescription(rs.getString("description")); }} catch (SQLException e) {e.printStackTrace();}finally{ConnectionFactory.closeConnection();}return meetingroom;}/*** 查询所有会议室* @return*/public List<MeetingRoom> selectAllMeetingRooms(){conn=ConnectionFactory.getConnection();List<MeetingRoom> list=new ArrayList<MeetingRoom>();MeetingRoom meetingroom=null; try {PreparedStatement st=null;String sql="select * from meetingroom ";st = conn.prepareStatement(sql);ResultSet rs =st.executeQuery(sql);while(rs.next()){meetingroom=new MeetingRoom();meetingroom.setRoomid(Integer.parseInt(rs.getString("roomid")));meetingroom.setRoomnum(Integer.parseInt(rs.getString("roomnum")));meetingroom.setCapacity(Integer.parseInt(rs.getString("capacity")));meetingroom.setRoomname(rs.getString("roomname"));meetingroom.setStatus(rs.getString("status"));meetingroom.setDescription(rs.getString("description")); list.add(meetingroom);}} catch (SQLException e) {e.printStackTrace();}finally{ConnectionFactory.closeConnection();}return list;}/*** 根据ID更新会议室* @param meetingroom*/public void updateMeetingroom(MeetingRoom meetingroom){conn=ConnectionFactory.getConnection();String sql="update meetingroom set roomnum=?,roomname=?,capacity=?,status=?,description=? where roomid="+meetingroom.getRoomid();try { PreparedStatement pstmt = conn.prepareStatement(sql);pstmt.setInt(1, meetingroom.getRoomnum());pstmt.setString(2, meetingroom.getRoomname());pstmt.setInt(3, meetingroom.getCapacity());pstmt.setString(4, meetingroom.getStatus());pstmt.setString(5,meetingroom.getDescription());pstmt.executeUpdate(); } catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}finally{ConnectionFactory.closeConnection();} }/*** 根据ID更新会议室状态* 当被预定的时候,会更改状态为被占用* @param roomid* @param status*/public void updateMeetingroomStatus(int roomid,String status){conn=ConnectionFactory.getConnection();String sql="update meetingroom set status=? where roomid="+roomid;try { PreparedStatement pstmt = conn.prepareStatement(sql); pstmt.setString(1, status);pstmt.executeUpdate(); } catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}finally{ConnectionFactory.closeConnection();} }public static void main(String[] args){MeetingRoomDAO dao=new MeetingRoomDAO();MeetingRoom meetingroom=new MeetingRoom(5,3301,"第XXX会议室",120,"1","最小会议室？？？");
// dao.insert(meetingroom);
// dao.updateMeetingroom(meetingroom);
// dao.updateMeetingroomStatus(5, "100");
//
// System.out.println(dao.selectByRoomid(6));List<MeetingRoom> list=dao.selectAllMeetingRooms();for(MeetingRoom room:list){System.out.println(room);}}
}
service类
package com.meeting.service;import java.util.List;import com.meeting.dao.MeetingRoomDAO;
import com.meeting.vo.MeetingRoom;public class MeetingRoomService {private MeetingRoomDAO dao=new MeetingRoomDAO();//一共四个方法/*** 查询所有会议室* @return*/public List<MeetingRoom> viewAllMeetingRooms(){return dao.selectAllMeetingRooms();}/*** 根据id查询会议室* @param roomid* @return*/public MeetingRoom viewOneMeetingRoom(int roomid){return dao.selectByRoomid(roomid);}/*** 添加会议室* @param meetingroom*/public void addMeetingRoom(MeetingRoom meetingroom){dao.insert(meetingroom);}/*** 根据id更新会议室状态* @param meetingroom*/public void updateMeetingRoom(MeetingRoom meetingroom){dao.updateMeetingroom(meetingroom);}
}
2.查看所有会议室
写一个新的servlet类
ViewAllMeetingRoomsServlet
public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {MeetingRoomService service=new MeetingRoomService();//存结果集List<MeetingRoom> list=service.viewAllMeetingRooms();request.setAttribute("meetingroomsList", list);request.getRequestDispatcher("allmeetingrooms.jsp").forward(request, response);}新建allmeetingrooms.jsp
<%@ page language="java" import="java.util.*,com.meeting.vo.*"pageEncoding="utf-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<html>
<head>
<title>CoolMeeting会议管理系统</title>
<link rel="stylesheet" href="styles/common03.css" />
</head>
<body><div class="page-content"><div class="content-nav">会议预定 > 查看会议室</div><table class="listtable"><caption>所有会议室:</caption><tr class="listheader"><th>门牌编号</th><th>会议室名称</th><th>容纳人数</th><th>当前状态</th><th>操作</th></tr><c:forEach var="room" items='${requestScope.meetingroomsList}'><tr><!-- 门牌编号 --><td>${room.roomnum}</td><!-- 会议室名称 --><td>${room.roomname}</td><!-- 容纳人数 --><td>${room.capacity }</td><!-- 当前状态 --><!--0表示可用 --><c:if test="${room.status eq 0}"><td>可用</td></c:if><!--1表示不可用 --><c:if test="${room.status eq 1}"><td>不可用</td></c:if><td><!-- 操作 --> <a class="clickbutton" href="#">查看详情</a></td></tr></c:forEach></table></div><div class="page-footer"><hr />更多问题，欢迎联系<a href="mailto:webmaster@eeg.com">管理员</a> <imgsrc="data:images/footer.png" alt="CoolMeeting" /></div>
</body>
</html>
adminleft.jsp
成功
3.查看详情并修改
根据会议室id进行查询
1.创建一个新的Servlet类
package com.meeting.servlet;import java.io.IOException;
import java.io.PrintWriter;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import com.meeting.service.MeetingRoomService;
import com.meeting.vo.MeetingRoom;public class ViewOneMeetingRoomServlet extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {doPost(request,response);}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {//得到roomidint roomid=Integer.parseInt(request.getParameter("roomid"));//调用方法MeetingRoomService service =new MeetingRoomService();//把roomMeetingRoom room=service.viewOneMeetingRoom(roomid);request.setAttribute("room", room);request.getRequestDispatcher("meetingroomdetail.jsp").forward(request, response);}}
2.修改meetingroomdetail.jsp 用JSTL+EL来显示会议室信息
<%@ page language="java"import="java.util.*,com.meeting.vo.*" pageEncoding="utf-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%><html><head><title>CoolMeeting会议管理系统</title><link rel="stylesheet" href="styles/common03.css"/></head><body><div class="page-content"><div class="content-nav">会议预定 > 修改会议室信息</div><form action="UpdateMeetingRoomServlet" method="post"><fieldset><legend>会议室信息</legend><table class="formtable"><tr><td>门牌号:</td><td><!-- 隐藏表单域 --><input type="hidden" name="roomid" value='${requestScope.room.roomid}'><input id="roomnumber" name="roomnum" type="text" maxlength="10" value='${requestScope.room.roomnum}'/></td></tr><tr><td>会议室名称:</td><td><input id="roomname" name="roomname" type="text" maxlength="20" value='${requestScope.room.roomname}'/></td></tr><tr><td>最多容纳人数：</td><td><input id="roomcapacity" name="capacity" type="text" value='${requestScope.room.capacity}'/></td></tr><tr><td>当前状态：</td><td><c:if test="${requestScope.room.status eq 0 }"><input type="radio" id="status" name="status" checked="checked" value="0"/><label for="status">可用</label><input type="radio" id="status" name="status" value="1"/><label for="status" >不可用</label></c:if><c:if test="${requestScope.room.status eq 1 }"><input type="radio" id="status" name="status" value="0"/><label for="status">可用</label><input type="radio" id="status" name="status" checked="checked" value="1"><label for="status" >不可用</label></c:if></td></tr><tr><td>备注：</td><td><textarea id="description" name="description" maxlength="200" rows="5" cols="60" >${requestScope.room.description}</textarea></td></tr><tr><td colspan="2" class="command"><input type="submit" value="确认修改" class="clickbutton"/><input type="button" class="clickbutton" value="返回" onclick="window.history.back();"/></td></tr></table></fieldset></form></div><div class="page-footer"><hr/>更多问题，欢迎联系<a href="mailto:webmaster@eeg.com">管理员</a><img src="data:images/footer.png" alt="CoolMeeting"/></div></body>
</html>3.修改allmeetingrooms.jsp 的"查看详情" 这里加一个url
4.创建UpdateMeetingRoomServlet 显示根据id更新当前的会议室
package com.meeting.servlet;import java.io.IOException;
import java.io.PrintWriter;import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import com.meeting.service.MeetingRoomService;
import com.meeting.vo.MeetingRoom;public class UpdateMeetingRoomServlet extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {doPost(request,response);}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {//查看会议室-查看详情-确认修改功能//获取会议室编号,门牌号,容纳人数int roomid=Integer.parseInt(request.getParameter("roomid"));int roomnum=Integer.parseInt(request.getParameter("roomnum"));int capacity=Integer.parseInt(request.getParameter("capacity"));//获取会议室名称,状态,说明String roomname=request.getParameter("roomname");String status=request.getParameter("status");String description=request.getParameter("description");//调用方法MeetingRoomService service=new MeetingRoomService();service.updateMeetingRoom(new MeetingRoom(roomid,roomnum,roomname,capacity,status,description));//跳转页面request.getRequestDispatcher("ViewAllMeetingRoomsServlet").forward(request, response);}}
5.meetingroomdetail.jsp 为了可以使用roomid,使用hidden字段来保存,通过表单提交
配置web.xml
4.添加会议室
1.创建AddMeetingRoomServlet类
把输入的数据库信息添加到数据库中
然后跳转到ViewAllMeetingRoomsServlet显示会议室列表
public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {//取出输入的信息int roomnum=Integer.parseInt(request.getParameter("roomnum"));int capacity=Integer.parseInt(request.getParameter("capacity"));String roomname=request.getParameter("roomname");String status=request.getParameter("status");String description=request.getParameter("description");//调用addMeetingRoom()方法MeetingRoomService service=new MeetingRoomService();service.addMeetingRoom(new MeetingRoom(roomnum,roomname,capacity,status,description));//跳转页面request.getRequestDispatcher("ViewAllMeetingRoomsServlet").forward(request, response);}2.新增addmeetingroom.jsp
form表单提交到AddMeetingRoomServlet
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><html><head><title>CoolMeeting会议管理系统</title><link rel="stylesheet" href="styles/common03.css"/></head><body><div class="page-content"><div class="content-nav">会议预定 > 添加会议室</div><form method="post" action="AddMeetingRoomServlet"><fieldset><legend>会议室信息</legend><table class="formtable"><tr><td>门牌号:</td><td><input id="roomnumber" name="roomnum" type="text" placeholder="例如：201" maxlength="10"/></td></tr><tr><td>会议室名称:</td><td><input id="roomname" name="roomname" type="text" placeholder="例如：第一会议室" maxlength="20"/></td></tr><tr><td>最多容纳人数：</td><td><input id="roomcapacity" name="capacity" type="text" placeholder="填写一个正整数"/></td></tr><tr><td>当前状态：</td><td><input type="radio" id="status" name="status" checked="checked" value="0"/><label for="status">可用</label><input type="radio" id="status" name="status" value="1"/><label for="status" >不可用</label></td></tr><tr><td>备注：</td><td><textarea id="description" name="description" maxlength="200" rows="5" cols="60" placeholder="200字以内的文字描述"></textarea></td></tr><tr><td colspan="2" class="command"><input type="submit" value="添加" class="clickbutton"/><input type="reset" value="重置" class="clickbutton"/></td></tr></table></fieldset></form></div><div class="page-footer"><hr/>更多问题，欢迎联系<a href="mailto:webmaster@eeg.com">管理员</a><img src="data:images/footer.png" alt="CoolMeeting"/></div></body>
</html>配置web.xml
修改adminleft.jsp
在添加会议室那里加一个url
测试:
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