第七次作业

1.教材P78-79  例4-9

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme() + "://"
            + request.getServerName() + ":" + request.getServerPort()
            + path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

<title>My JSP 'demo4.9.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

</head>

<body bgcolor=#ffccff>
    <%
        double price = 56.56;
    %>
  
    <p style="font-family:宋体;font-size:36;color:blue">
        商品编号A0132,价格99 <a href="demo4.9receive.jsp?id=A0132&price=56.56">购买</a><br>
        商品编号A0133,价格<%=price%>
        <a href="demo4.9receive.jsp?id=A0133&price=<%=price%> ">购买</a>
    </p>
</body>
</html>




<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'demo4.9receive.jsp' starting page</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body bgcolor=#EEEEFF>
  <p style="font-family:宋体;font-size:36;color:blue">
  <% 
  String id=request.getParameter("id");
  String price=request.getParameter("price");
  %>
   <b>商品编号:<%= id %><br>
        商品价格:<%= price %>
   </p>
   <a href="demo4.9.jsp">返回购买页</a>
  </body>
</html>



 

 

 

 

 

 

 

 

 

2.教材P97 实验2


<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 
<html>
  <head>
    
 
  </head>
   
  <body>
  <form action="counter.jsp" method="post">
   输入运算数,选择运输符号:<br>
   <input type="text" name="num1" size="5"/>
   <select name="sel">
   <option selected="selected" value="+">加</option>
   <option value="-">减</option>
    <option value="*">乘</option>
     <option value="/">除</option>
   </select>
   <input type="text" name="num2" size="5"/><br>
   <input type="submit" name="submit" value="提交"/>
   </form>
     
  </body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  </head>
  <body>
   <%
    request.setCharacterEncoding("utf-8");
   String numberOne=request.getParameter("numberOne");
   String numberTwo=request.getParameter("numberTwo");
   String op=request.getParameter("op");
   if(numberOne==null||numberOne.length()==0){
        response.sendRedirect("week7.jsp");/* 获取方法 */
        return;
   }
   else if(numberTwo==null||numberTwo.length()==0){
        response.sendRedirect("second01.jsp");
        return;
   }
   try{
     double a=Double.parseDouble(numberOne);
     double b=Double.parseDouble(numberTwo);
     double r=0;
     if(op.equals("+"))
     r=a+b;
     else if(op.equals("-"))
     r=a-b;
     else if(op.equals("*"))
     r=a*b;
     else if(op.equals("/"))
     r=a/b;
     out.print(a+" "+op+" "+b+"-"+r);
   }
   catch(Exception e){
      out.println("请输入数字字符");
   }
    %>
  </body>
</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)

 


<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
    <script>

        function yz() {
            if (form.user.value == "") {
                alert("账号不能为空!");
                return;
            }
            if (form.password.value == "") {
                alert("密码不能为空!");
                return;
            }
            if (form.validationCode.value == "") {
                alert("验证码不能为空,请输入验证码");
                form.validationCode.focus();
                return;
            }
            if (form.validationCode.value != form.validationCode1.value) {
                alert("请输入正确的验证码");
                form.validationCode.focus();
                return;
            }

            form.submit();
        }
    </script>

    <%
        int intmethod1 = (int) ((((Math.random()) * 5)) + 1);
        int intmethod2 = (int) ((((Math.random()) * 5)) + 1);
        int intmethod3 = (int) ((((Math.random()) * 5)) + 1);
        int intmethod4 = (int) ((((Math.random()) * 5)) + 1);
        String intsum = intmethod1 + "" + intmethod2 + intmethod3
                + intmethod4;
    %>
    <form action="index3.jsp" method="post" name="form">
        <table>
            <tr>
                <td>用户名:<input type="text" name="user" />
                </td>
            </tr>
            <tr>
                <td>密码:<input type="password" name="password" />
                </td>
            </tr>
            <tr>
                <td>验证码:<input type="text" name="validationCode"
                    onKeyDown="if(event.keyCode==13){form.submit.focus();}" size="6">
                    <input type="button" name="validationCode1" size="1"
                    value="<%=intsum%>"></td>
            </tr>
            
            <tr>
                <td>是否注册会员:<input type="radio" name="hy" value="是" /><input type="radio" name="hy" value="否" /></td>
            </tr>
            <tr>
                <td><input type="button" value="登录" onclick="yz()" />
                </td>
            </tr>
        </table>
    </form>
</body>
</html>
复制代码
复制代码
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
    <h1>登录成功</h1>
    <%
    request.setCharacterEncoding("utf-8");
        String hy=request.getParameter("hy");
        if(hy.equals("")){
            out.print("欢迎您注册为会员");
        }
    
        
        
        
         
    %>
</body>
</html>


<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
  <head>
    <title>My JSP 'index.jsp' starting page</title>
  </head>
  <body>
      <% request.setCharacterEncoding("utf-8");%>
  <h1> 登录失败</h1>
  </body>
</html>



<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
  <head>
    <title>My JSP 'index.jsp' starting page</title>
  </head>
  <body>
  <%
  request.setCharacterEncoding("utf-8");
        String user = request.getParameter("user") == null ? "" : request
                .getParameter("user");
        String password = request.getParameter("password") == null ? ""
                : request.getParameter("password");
        
        if (user.equals(password)) {
            request.getRequestDispatcher("index1.jsp").forward(request, response);
        } else {
            request.getRequestDispatcher("index2.jsp").forward(request, response);
        }
    %>
  
  
  </body>
</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。
 

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
            + path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'login.jsp' starting page</title>
</head>

<body>
    <form action="second.jsp" method="post">
        <p style="font-family:宋体;font-size:18;color:black">
            请输入数字:<input type="text" name="number" size=10><br> <br>
            <br> <input type="submit" name="submit" value="提交">
    </form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
    String path = request.getContextPath();
    String basePath = request.getScheme() + "://"
            + request.getServerName() + ":" + request.getServerPort()
            + path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
    <%
        request.setCharacterEncoding("utf-8");
        String number = request.getParameter("number");
        int a = Integer.parseInt(number);
        for (int i = 0; i < a; i++) {
            out.print("欢迎" + "<br>");
        }
    %>

</body>
</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.getRequestDispacher.....forward

 

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
    <script>
        function yz() {
            if (form.zh.value == "") {
                alert("用户名不能为空!");
                form.zh.focus();
                return;
            }
            if (form.password.value == "") {
                alert('密码不能为空!');
                form.password.focus();
                return;
            }
            if(form.zh.value==form.password.value){
            form.submit();
            }else{
            alert('登陆失败');
            form.password.focus();
            return;
            }
        }
    </script>

    <form action="index1.jsp" method="post" name="form">
        <table>
            <tr>
                <td>账号</td>
                <td><input type="text" name="zh" />
                </td>
            </tr>
            <tr>
                <td>密码</td>
                <td><input type="password" name="password" />
                </td>
            </tr>
            <tr>
                <td><input type="button" value="登录" onclick="yz()" />
                </td>
            </tr>
        </table>
    </form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<%
String zh=request.getParameter("zh");
 %>

    <form action="index2.jsp" method="post">
        <input type="text" name="name" /> 
        <input type="submit" value="提交" />
        <input type="hidden" name="zh" value="<%=zh %>"/>
    </form>
    
</body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML >
<html>
  <head>
    <title>My JSP 'index.jsp' starting page</title>
  </head>
  <body>
  <%
  request.setCharacterEncoding("utf-8");
  String zh=request.getParameter("zh");
  String name=request.getParameter("name");
  out.print("用户姓名:"+name+"<br>"+"用户账号:"+zh);
  %>
  
  
  </body>
</html>

 

 

 

 


 
 
posted @ 2022-04-16 21:55  高杨翔  阅读(6)  评论(0编辑  收藏  举报