JSP第五次作业

1.教材P78-79  例4-9

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4 <head>
 5 <title>My JSP 'example4.jsp' starting page</title>
 6 </head>
 7 
 8 <body bgcolor="#ffccff">
 9     <%
10         double price = 97.78;
11     %>
12     <p style="font-family:宋体;font-size:36;color:blue">
13         商品编号 A1001,价格 8765 <a href="receive.jsp?id=A1001&price=8765">购买</a><br>
14         商品编号A1002,价格<%=price%>
15         <a href="receive.jsp?id=A1002&price=<%=price%>">购买</a>
16     </p>
17 </body>
18 </html>
 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4   <head>
 5     <title>My JSP 'receive.jsp' starting page</title>
 6   </head>
 7   
 8   <body bgcolor="#EEEEEE">
 9    <p style="font-family:宋体;font-size:36;color:blue">
10     <%
11     request.setCharacterEncoding("UTF-8");
12     response.setCharacterEncoding("UTF-8");
13     String id=request.getParameter("id");
14     String price=request.getParameter("price");
15          %>
16          商品编号:<%=id %><br>
17          商品价格:<%=price %>
18          </p>
19   </body>
20 </html>

 

 

 2.教材P97 实验2

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4 <head>
 5 <title>My JSP 'input.jsp' starting page</title>
 6 </head>
 7 
 8 <body bgcolor="#ffccff">
 9     <form action="computer.jsp" method="post" name="form">
10         <p style="font-family:宋体;font-size=18;color=blue"></p>
11             输入运算数,选择运算符号:<br> 
12             <input type="text" name="numberOne" size="6" value=56> 
13             <select name="operator">
14                 <option selected="selected" value="+">15                 <option value="-">16                 <option value="*">17                 <option value="/">18             </select> <input type="text" name="numberTwo" size="6" value=88 /> <br>
19             <input type="submit" name="submit" value="提交" />
20     </form>
21 </body>
22 </html>
 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4   <head>  
 5     <title>My JSP 'computer.jsp' starting page</title>
 6   </head>
 7   <body bgcolor="cyan">
 8   <p style="font-family:宋体;font-size:18;color:black">
 9   <%
10   request.setCharacterEncoding("UTF-8");
11   response.setCharacterEncoding("UTF-8");
12   String numberOne=request.getParameter("numberOne");
13   String numberTwo=request.getParameter("numberTwo");
14   String operator=request.getParameter("operator");
15   if(numberOne==null||numberOne.length()==0){
16   response.sendRedirect("input.jsp");
17   return;
18   }else if(numberTwo==null||numberTwo.length()==0){
19   response.sendRedirect("input.jsp");
20   return;
21   }
22   try{
23   double a=Double.parseDouble(numberOne);
24   double b=Double.parseDouble(numberTwo);
25   double r=0;
26   if(operator.equals("+"))
27   r=a+b;
28   else if(operator.equals("-"))
29   r=a-b;
30   else if(operator.equals("*"))
31   r=a*b;
32   else if(operator.equals("/"))
33   r=a/b;
34   out.print(a+""+operator+""+b+"="+r);
35   }catch(Exception e){
36   out.print("请输入数字字符");
37   }
38   %>  
39   </body>
40 </html>

 

3.制作一个登陆表单,输入账号和密码,如果账号密码相同,跳转到“登录成功”页面,否则跳转到“登录失败”页面。(加上JS非空验证)(选做,加验证码)

4.在上题的表单中增加一个checkbox,让用户选择“是否注册为会员",如果注册为会员,则在显示时增加文本“欢迎您注册为会员”。

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4 <head>
 5 <title>My JSP 'login.jsp' starting page</title>
 6 </head>
 7 
 8 <body>
 9 <%
10         int intmethod1 = (int) ((((Math.random()) * 5)) + 1);
11         int intmethod2 = (int) ((((Math.random()) * 5)) + 1);
12         int intmethod3 = (int) ((((Math.random()) * 5)) + 1);
13         int intmethod4 = (int) ((((Math.random()) * 5)) + 1);
14         String intsum = intmethod1 + "" + intmethod2 + intmethod3
15                 + intmethod4;
16     %>
17     <form name="loginForm" action="target.jsp" method="post">
18         请输入账号:<input type="text" name="account"> <br> 
19         请输入密码:<input type="password" name="password"> <br>
20         验证码:<input type="text" name="validationCode" onKeyDown="if(event.keyCode==13){loginForm.submit.focus();}" size="6">
21         <input type="button" name="validationCode1" size="1" value="<%=intsum%>" /><br>
22                是否注册会员:<input type="radio" name="sf" value="是" />23                 <input type="radio" name="sf" value="否" /><br>
24             <input type="button" value="登录" onClick="validate()">
25     </form>
26     <script type="text/javascript">
27         function validate(){
28             if(loginForm.account.value==""){
29                 alert("账号不能为空!");
30                 return;
31             }
32             if(loginForm.password.value==""){
33                 alert("密码不能为空!");
34                 return;
35             }
36              if (loginForm.validationCode.value == "") {
37                 alert("验证码不能为空,请输入验证码");
38                 loginForm.validationCode.focus();
39                 return;
40             }
41             if (loginForm.validationCode.value != loginForm.validationCode1.value) {
42                 alert("请输入正确的验证码");
43                 loginForm.validationCode.focus();
44                 return;
45             }
46             loginForm.submit();
47         }
48     </script>
49 </body>
50 </html>
 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4 <head>
 5 <title>My JSP 'target.jsp' starting page</title>
 6 </head>
 7 
 8 <body>
 9     <%
10         request.setCharacterEncoding("utf-8");
11         String uname = request.getParameter("account");
12         String upwd = request.getParameter("password");
13         if (uname.equals("admin") && upwd.equals("admin"))
14             request.getRequestDispatcher("succes.jsp").forward(request,
15                     response);
16         else
17             request.getRequestDispatcher("fail.jsp").forward(request,
18                     response);
19     %>
20 </body>
21 </html>
 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%
 3 String path = request.getContextPath();
 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 5 %>
 6 
 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 8 <html>
 9   <head>
10     <base href="<%=basePath%>">
11     
12     <title>My JSP 'succes.jsp' starting page</title>
13     
14     <meta http-equiv="pragma" content="no-cache">
15     <meta http-equiv="cache-control" content="no-cache">
16     <meta http-equiv="expires" content="0">    
17     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
18     <meta http-equiv="description" content="This is my page">
19     <!--
20     <link rel="stylesheet" type="text/css" href="styles.css">
21     -->
22 
23   </head>
24   
25   <body>
26     <h1>登录成功!!!!</h1>
27     <%
28     request.setCharacterEncoding("utf-8");
29         String sf=request.getParameter("sf");
30         if(sf.equals("")){
31             out.print("欢迎您注册为会员");
32         }
33     %>
34   </body>
35 </html>
 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%
 3 String path = request.getContextPath();
 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 5 %>
 6 
 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 8 <html>
 9   <head>
10     <base href="<%=basePath%>">
11     
12     <title>My JSP 'fail.jsp' starting page</title>
13     
14     <meta http-equiv="pragma" content="no-cache">
15     <meta http-equiv="cache-control" content="no-cache">
16     <meta http-equiv="expires" content="0">    
17     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
18     <meta http-equiv="description" content="This is my page">
19     <!--
20     <link rel="stylesheet" type="text/css" href="styles.css">
21     -->
22 
23   </head>
24   
25   <body>
26     <h1>登陆失败!!!</h1>
27   </body>
28 </html>

 

 5.在页面1的表单内输人一个数字N,提交,能够在另一个页面打印N个“欢迎”字符串。

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4 <head>
 5 <title>My JSP 'page.jsp' starting page</title>
 6 </head>
 7 <body>
 8     <form action="page1.jsp" method="post" name="page0">
 9         输入一个数字:<input type="number" name="number1"><br> 
10         <input type="submit" value="提交" >
11         <input type="reset" value="重置">
12     </form>
13     
14 </body>
15 </html>
 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4 <head>
 5 <title>My JSP 'page1.jsp' starting page</title>
 6 </head>
 7 <body>
 8     <%
 9         //设置编码
10         request.setCharacterEncoding("UTF-8");
11         response.setCharacterEncoding("UTF-8");
12         //获取数据
13         String number = request.getParameter("number1");
14         //转换数据类型
15         int n = Integer.parseInt(number);
16         //循环
17         for (int i = 0; i < n; i++) {
18             out.print("欢迎" + "<br>");
19         }
20     %>
21 </body>
22 </html>

 

 6.在页面1中输入账号和密码,进行登录,如果账号和密码相同,则认为成功登录到页面2,在页面2中显示一个文本框输人用户姓名,输人之后提交,在页面3中显示用户的账号和姓名。(转发)request.getRequestDispatcher.....forward (request,response)

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 3 <html>
 4   <head>   
 5     <title>My JSP 'reg.jsp' starting page</title>
 6   </head>
 7   
 8   <body>
 9    <form action="one.jsp" method="post" name="zero">
10    <p>
11    <span>账号:</span>
12    <input type="text" name="account" >
13    </p>
14    <p>
15    <span>密码:</span>
16    <input type="password" name="pwd" >
17    </p>
18    <p>
19    <input type="submit" value="提交">
20    <input type="reset" value="重置">
21    </p>
22    </form>
23   </body>
24 </html>
 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%
 3 String path = request.getContextPath();
 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 5 %>
 6 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 7 <html>
 8   <head>   
 9     <title>My JSP 'one.jsp' starting page</title> 
10   </head>
11   <body>
12     <%
13     //设置编码
14     request.setCharacterEncoding("UTF-8");
15     //获取数据
16     String account=request.getParameter("account");
17     String pwd=request.getParameter("pwd");
18     //判断账号,密码是否相同
19    if(account.equals("admin")&&pwd.equals("admin")){
20    request.getRequestDispatcher("two.jsp").forward(request,response);
21     }else{
22    response.sendRedirect("reg.jsp");
23     }
24      %>
25   </body>
26 </html>
 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%
 3     String path = request.getContextPath();
 4     String basePath = request.getScheme() + "://"
 5             + request.getServerName() + ":" + request.getServerPort()
 6             + path + "/";
 7 %>
 8 
 9 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
10 <html>
11 <head>
12 <base href="<%=basePath%>">
13 
14 <title>My JSP 'two.jsp' starting page</title>
15 
16 <meta http-equiv="pragma" content="no-cache">
17 <meta http-equiv="cache-control" content="no-cache">
18 <meta http-equiv="expires" content="0">
19 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
20 <meta http-equiv="description" content="This is my page">
21 <!--
22     <link rel="stylesheet" type="text/css" href="styles.css">
23     -->
24 
25 </head>
26 
27 <body>
28     <form action="three.jsp" method="post" name="three">
29         请输入姓名:<input type="text" name="name"><br> 
30         <input id="hidden_account" type="hidden"
31             value="<%=request.getParameter("account")%>" /> 
32             <input type="submit" value="提交" onclick="doClick()">
33     </form>
34     <script type="text/javascript">
35         function doClick() {
36             document.forms[0].action = "six/three.jsp?account="
37                     + document.getElementById("hidden_account").value;
38             document.forms[0].submit();
39         }
40     </script>
41 </body>
42 </html>
 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%
 3 String path = request.getContextPath();
 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 5 %>
 6 
 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 8 <html>
 9   <head>
10     <base href="<%=basePath%>">
11     
12     <title>My JSP 'three.jsp' starting page</title>
13     
14     <meta http-equiv="pragma" content="no-cache">
15     <meta http-equiv="cache-control" content="no-cache">
16     <meta http-equiv="expires" content="0">    
17     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
18     <meta http-equiv="description" content="This is my page">
19     <!--
20     <link rel="stylesheet" type="text/css" href="styles.css">
21     -->
22 
23   </head>
24   
25   <body>
26    <%
27    //设置编码
28    request.setCharacterEncoding("UTF-8");
29    response.setCharacterEncoding("UTF-8");
30    //获取数据
31    String name=request.getParameter("name");
32     %>
33     用户的姓名:<%=name %><br>
34    用户的账号:<%= request.getParameter("account") %>
35   </body>
36 </html>

 

 

 

 

 

posted @ 2022-04-16 19:26  MXT16  阅读(10)  评论(0编辑  收藏  举报