第七周

1.教材P78-79 例4-9

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title></title>

  </head>
  
  <body>
     <%
    double price=98.78;
    %>
   商品编号 A1001,价格 8765
   <a href="receive .jsp?id=A1001&price=8765">购买</a><br>
   商品编号 A1002,价格 <%=price %>
   <a href="receive .jsp?id=A1002&price=<%=price %>">购买</a><br>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    
    <title></title>
  </head>
  
  <body>
    <p style="font-family: :宋体;font-size: 36;color:blue">
     <% 
     request.setCharacterEncoding("utf-8");
     String id=request.getParameter("id");
       String price=request.getParameter("price");
     %>
     <b>商品编号:<%=id %><br>
                 商品价格:<%=price %>
    </p>
  </body>
</html>

 

 二、教材P97 实验2(计算器)

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   <title>jsq1.jsp</title> 
   </head>
  
  <body>
  <form action="jsq2.jsp" method="post">
   <p style="font-family:宋体;font-size: 18">
                 输入运算数并选择运算符:<br/><br/>
      <input type="text" name="shu1" size=6 />
        <select name="operator">
          <option selected="selected" value="+"><option value="-"><option value="*"><option value="/"></select>
     <input type="text" name="shu2" size=6 /> <br/><br/>
     <input type="submit" name="submit" value="提交"/>  
   </p>
   </form>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>jsq2.jsp</title>
  </head>
  
  <body>
   <p style="font-family:宋体;font-size: 18">
   <%String shu1=request.getParameter("shu1");
     String shu2=request.getParameter("shu2");
     String operator=request.getParameter("operator");
     if(shu1==null||shu1.length()==0){
        response.sendRedirect("jsq1.jsp");
        return;
     }else if(shu2==null||shu2.length()==0){
        response.sendRedirect("jsq1.jsp");
        return;
     }
     try{
        double a=Double.parseDouble(shu1);
        double b=Double.parseDouble(shu2);
        double sum=0;
        if(operator.equals("+"))
            sum=a+b;
         else if(operator.equals("-"))
            sum=a-b;
         else if(operator.equals("*"))
            sum=a*b;
         else if(operator.equals("/"))
            sum=a/b;
        out.print(a+""+operator+""+b+"="+sum);
     }catch(Exception e){
         out.print("请输入数字字符");
     }
      %>
   </p>
  </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"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
  <%
    String admin=request.getParameter("admin");
    String pass=request.getParameter("pass");
    if(admin.equals(pass)){
        request.getRequestDispatcher("week7_05.jsp").forward(request, response);
    }
    else{
        response.sendRedirect("week7_07.jsp");
    }
   %>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
     <script type="text/javascript">
        function login(){
            if(logindo.admin.value==""){
                alert("请输入账号");
                return;
            }
            else if(logindo.pass.value==""){
                alert("请输入密码");
                return;
            }
            logindo.submit();
        }
    </script>
  <form action="week7_04.jsp" name ="logindo">
    <p style="font-family: 宋体;font-size: 18; color:blue">
    账号:
    <input type="text" name="admin" size=6/>
    密码:
    <input type="password" name="pass" size=6/>
     
   
    <br><input type="button" value="登录" onclick="login()"/>
  </form>
  
  
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
 登录成功!!!!!!!
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
 登录失败!!!!!!!
  </body>
</html>

 

 

 

 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”

<script type="text/javascript">
        function validate(){
            if(loginForm.uname.value==""&&loginForm.password.value==""){
                alert("账号和密码都不能为空!");
                return;
            }
            if(loginForm.uname.value==""){
                alert("账号不能为空!");
                return;
            }
            if(loginForm.password.value==""){
                alert("密码不能为空!");
                return;
            }
            loginForm.submit();
        }
    </script>
  </head>  
  <body>  
  <form name="loginForm" action="3.test.jsp" method="post">
    账号:<input type="text" name="uname"><br>
    密码:<input type="password" name="password"><br>
    验证码:<input type="text" name="yanzheng"><br>
    输入下图中的字符,不区分大小写<br>
    <img src="image/35452.png"> <br>
    是否注册会员
  <input type="checkbox" name="huiyuan" value="yes"><input type="checkbox" name="huiyuan" value="no">否<br>
    <input type="button" value="登录" onClick="validate()">
   </form>   
  </body>

 

 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"%>

<html>
  <head>
   
  </head>
  
  <body>
 <form action="two.jsp" method="post">
 <input type="text" name="text"/>
 <input type="submit"  value="提交"/>
 </form>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<html>
<head>


</head>

<body>
    <%
        String text = request.getParameter("text");
        int n = Integer.parseInt(text);
        for (int i = 0; i < n; 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。

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
     <script type="text/javascript">
        function login(){
            if(logindo.admin.value==""){
                alert("请输入账号");
                return;
            }
            else if(logindo.pass.value==""){
                alert("请输入密码");
                return;
            }
            logindo.submit();
        }
    </script>
  <form action="ex02.jsp" name ="logindo">
    <p style="font-family: 宋体;font-size: 18; color:blue">
    账号:
    <input type="text" name="admin" size=6/>
    密码:
    <input type="password" name="pass" size=6/>
 
    <br><input type="button" value="登录" onclick="login()"/>
  </form>
  
  
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
  <%
    String admin=request.getParameter("admin");
    String pass=request.getParameter("pass");
     
    if(admin.equals(pass)){
        request.getRequestDispatcher("ok.jsp").forward(request, response);
         
    }
    else{
        response.sendRedirect("no.jsp");
    }
    
   %>
   
   
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
  <%
     String admin=request.getParameter("admin");
    String uname=request.getParameter("uname");
    out.print("账号:"+admin+"</br>"+"用户名称"+uname);
     
    
   %>
   
   
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
 登录失败!!!!!!!
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<body>
 登录成功!!!!!!!
 <%  String admin=request.getParameter("admin"); %>
        <form action="ex03.jsp">
            用户名:<input type="text" name="uname" />
        <input type="submit" value="提交"/>
        <input name="admin" type="hidden" value="<%= admin %>">
        </form>
   
  </body>
</html>

 

 

posted on 2022-04-17 16:01  我裂开  阅读(11)  评论(0编辑  收藏  举报

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