地铁查询系统部分代码

地铁查询系统部分代码

index.jsp

  1 <%--
  2   Created by IntelliJ IDEA.
  3   User: 十年磨一剑
  4   Date: 2022/3/25
  5   Time: 9:53
  6   To change this template use File | Settings | File Templates.
  7 --%>
  8 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
  9 <html>
 10   <head>
 11     <title>北京地铁查询</title>
 12     <style>
 13       .equary{
 14         margin-top: 20px;
 15         list-style: none;
 16         text-align: center;
 17         margin-left: 0px;
 18         margin-bottom: 10px;
 19       }
 20     </style>
 21     <script type="javascript">
 22       function xianlu(){
 23         document.getElementById("chaxunkuang").innerHTML="<form action=\"c1Servlet\" onsubmit=\"return check()\" method=\"post\">"
 24                 +"<table id='show'><br><br>"
 25                 +"    <tr>"
 26                 +"        <td>请选择地铁线路名"
 27                 +"          <select name=\"linename\">"
 28                 +"              <option value=\"1号线(八通线)\">1号线(八通线)</option>"
 29                 +"              <option value=\"2号线\">2号线</option>"
 30                 +"              <option value=\"4号线\">4号线</option>"
 31                 +"              <option value=\"5号线\">5号线</option>"
 32                 +"              <option value=\"6号线\">6号线</option>"
 33                 +"              <option value=\"7号线\">7号线</option>"
 34                 +"              <option value=\"8号线\">8号线</option>"
 35                 +"              <option value=\"9号线\">9号线</option>"
 36                 +"              <option value=\"10号线外环\">10号线外环</option>"
 37                 +"              <option value=\"11号线\">11号线</option>"
 38                 +"              <option value=\"13号线\">13号线</option>"
 39                 +"              <option value=\"14号线\">14号线</option>"
 40                 +"              <option value=\"15号线\">15号线</option>"
 41                 +"              <option value=\"16号线\">16号线</option>"
 42                 +"              <option value=\"17号线\">17号线</option>"
 43                 +"              <option value=\"19号线\">19号线</option>"
 44                 +"              <option value=\"S1号线\">S1号线</option>"
 45                 +"              <option value=\"S2号线主线\">S2号线主线</option>"
 46                 +"              <option value=\"S2号线支线\">S2号线支线</option>"
 47                 +"              <option value=\"亦庄线\">亦庄线</option>"
 48                 +"              <option value=\"亦庄T1线\">亦庄T1线</option>"
 49                 +"              <option value=\"大兴机场线\">大兴机场线</option>"
 50                 +"              <option value=\"房山线\">房山线</option>"
 51                 +"              <option value=\"昌平线\">昌平线</option>"
 52                 +"              <option value=\"燕房线\">燕房线</option>"
 53                 +"              <option value=\"西郊线\">西郊线</option>"
 54                 +"              <option value=\"首都机场线\">首都机场线</option>"
 55                 +          "</select>"
 56                 +"       </td>"
 57                 +"    </tr>"
 58                 +"</table>"
 59                 +"<input type=\"submit\" value=\"提交\">"
 60                 +"</form>"
 61         document.getElementById("result").innerHTML="";
 62 
 63       }
 64     </script>
 65   </head>
 66   <body>
 67   <h1 align="center">北京地铁查询</h1>
 68 <%--  <%--%>
 69 <%--    Object message = request.getAttribute("message");//放置一个字符串，并取出--%>
 70 <%--    if(message!=null && !"".equals(message)){--%>
 71 
 72 <%--  %>--%>
 73 <%--  <script type="text/javascript">--%>
 74 <%--    alert("<%=request.getAttribute("message")%>");--%>
 75 <%--  </script>--%>
 76 <%--  <%} %>--%>
 77   <div align="center">
 78 
 79 
 80     <div id="left-bottom1">
 81       <ul>
 82         <li  class="equary"><button id="stiation" onclick="station1()">站点查询</button></li>
 83         <li  class="equary"><button id="xianlu" onclick="xianlu()">线路查询</button></li>
 84         <li class="equary"><button id="qizhong" onclick="qizhong()">起点终点查询</button></li>
 85       </ul>
 86     </div>
 87 
 88     <form action="c1Servlet" method="post" onsubmit="return check()">
 89       <select name="linename" id="">
 90         <option value="1号线(八通线)">1号线(八通线)</option>
 91         <option value="2号线">2号线</option>
 92         <option value="4号线">4号线</option>
 93         <option value="5号线">5号线</option>
 94         <option value="6号线">6号线</option>
 95         <option value="7号线">7号线</option>
 96         <option value="8号线">8号线</option>
 97         <option value="9号线">9号线</option>
 98         <option value="10号线外环">10号线外环</option>
 99         <option value="11号线">11号线</option>
100         <option value="13号线">13号线</option>
101         <option value="14号线">14号线</option>
102         <option value="15号线">15号线</option>
103         <option value="16号线">16号线</option>
104         <option value="17号线">17号线</option>
105         <option value="19号线">19号线</option>
106         <option value="S1号线">S1号线</option>
107         <option value="S2号线主线">S2号线主线</option>
108         <option value="S2号线支线">S2号线支线</option>
109         <option value="亦庄线">亦庄线</option>
110         <option value="亦庄T1线">亦庄T1线</option>
111         <option value="大兴机场线">大兴机场线</option>
112         <option value="房山线">房山线</option>
113         <option value="昌平线">昌平线</option>
114         <option value="燕房线">燕房线</option>
115         <option value="西郊线">西郊线</option>
116         <option value="首都机场线">首都机场线</option>
117       </select>
118       <button type="submit" value="查询">查询</button>
119     </form>
120     <%
121     String station = (String) request.getAttribute("station");
122     %>
123     <%=station%>
124 
125   </div>
126   <script type="text/javascript">
127     function check() {
128       var username = document.getElementById("sname");;
129       var password = document.getElementById("ename");
130       //非空
131       if(username.value == '') {
132         alert('始发站不能为空');
133         same.focus();
134         return false;
135       }
136       if(password.value == '') {
137         alert('终点站不能为空');
138         ename.focus();
139         return false;
140       }
141 
142     }
143   </script>
144   </body>
145 </html>

c3Servlet

 1 package servlet;
 2 
 3 import dao.StationDAO;
 4 import entity.station;
 5 
 6 import javax.servlet.ServletException;
 7 import javax.servlet.annotation.WebServlet;
 8 import javax.servlet.http.HttpServlet;
 9 import javax.servlet.http.HttpServletRequest;
10 import javax.servlet.http.HttpServletResponse;
11 import java.io.IOException;
12 import java.sql.SQLException;
13 
14 @WebServlet
15 public class c3Servlet extends HttpServlet {
16     @Override
17     protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException{
18         req.setCharacterEncoding("UTF-8");
19         req.getParameter("start");
20         req.getParameter("end");
21         StationDAO SD = new StationDAO();
22 
23         station s1 = null;
24         station s2 = null;
25         try {
26             s1 = SD.checkstation("start");
27             s2 = SD.checkstation("end");
28         } catch (SQLException e) {
29             e.printStackTrace();
30         } catch (ClassNotFoundException e) {
31             e.printStackTrace();
32         }
33 
34 
35         if(SD.isonsameline(s1,s2)){
36             if(s1.getId()>=s2.getId()){
37                 for(int i=s1.getId();i>=s2.getId();i--){
38 
39                 }
40             }
41             if(s1.getId()<s2.getId()){
42                 for(int i=s1.getId();i<=s2.getId();i++){
43 
44                 }
45             }
46         }
47     }
48 
49     @Override
50     protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
51         super.doPost(req, resp);
52     }
53 }

c1servlet

 1 package servlet;
 2 
 3 import dao.LineDAO;
 4 
 5 import javax.servlet.ServletException;
 6 import javax.servlet.annotation.WebServlet;
 7 import javax.servlet.http.HttpServlet;
 8 import javax.servlet.http.HttpServletRequest;
 9 import javax.servlet.http.HttpServletResponse;
10 import java.io.IOException;
11 import java.sql.SQLException;
12 
13 @WebServlet("/c1Servlet")
14 public class c1Servlet extends HttpServlet{
15     @Override
16     protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
17         req.setCharacterEncoding("UTF-8");
18         String linename = req.getParameter("linename");
19         LineDAO ld = new LineDAO();
20         try {
21             String station = ld.checkallstation(linename);
22             req.setAttribute("station",station);
23         } catch (SQLException e) {
24             e.printStackTrace();
25         } catch (ClassNotFoundException e) {
26             e.printStackTrace();
27         }
28         req.getRequestDispatcher("index.jsp").forward(req,resp);
29     }
30 
31     @Override
32     protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
33         super.doPost(req, resp);
34     }
35 }

 

posted @ 2022-06-14 14:30  SHINIAN200  阅读(241)  评论(0)    收藏  举报