jsp第7周作业

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"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  </head>
  <body>
    <form action="week7_02.jsp" method=post name=form>
    输入运算数,选择运算符:<br>
    <input type=text name="numberOne" size=6 />
    <select name="op">
     <option selected="selected" value="+"><option value="-"><option value="*"><option value="/"></select>
    <input type=text name="numberTwo" size=6/><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"%>
 
 <%
    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”

<%@ 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_08.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/>
    是否注册会员:
    <input type="checkbox" name="yes" value="注册"/>注册
    <input type="checkbox" name="yes" value="不注册"/>不注册
    <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("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>
 
 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>
 
 登录成功!!!!!!!
  </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"%>
 
 <%
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
 
  <body>
     
  <form action="week7_10.jsp" name ="logindo">
    <p style="font-family: 宋体;font-size: 18; color:blue">
    请输入数字
    <input type="text" name="num" size=6/>
    <br><input type="submit" value="提交"/>
  </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 num=request.getParameter("num");
        int n=Integer.parseInt(num);
         
       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。(转发)request.getRequestDispacher.....forward

<%@ 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="MyJsp02.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("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>
  <%
     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>
<body>
 登录成功!!!!!!!
 <%  String admin=request.getParameter("admin"); %>
        <form action="MyJsp03.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>
<%@ 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>

 

 

 

 

 

posted @ 2022-04-16 16:10  杨英斌  阅读(10)  评论(0编辑  收藏  举报