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="+">加
     <option value="-">减
     <option value="*">乘
     <option value="/">除
     
    </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"%>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   

  </head>
  
  <body>
  <form action="Login1.jsp"method="post">
 请输入账号:<input name="account"type="text"><br>
 
 请输入密码:<input name="password"type="password"><br>
<input type="submit"value="登陆">
</form>

    <br>
  </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>
<% String account=request.getParameter("account");
String password=request.getParameter("password");
if(account.equals(password)){
response.sendRedirect("welcome.jsp");
}else{
out.print("登录错误"); 
}%>
  </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>

<%out.print("登陆成功，欢迎来到本系统"); %> <br>
  </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"%>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   

  </head>
  
  <body>
  <form action="Login1.jsp"method="post">
 请输入账号:<input name="account"type="text"><br>
 
 请输入密码:<input name="password"type="password"><br>
 是否注册会员
  <input type="checkbox" name="huiyuan" value="yes">是
  <input type="checkbox" name="huiyuan" value="no">否<br>
<input type="submit"value="登陆"><br>

</form>

    <br>
  </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>
<% String account=request.getParameter("account");
String password=request.getParameter("password");
String huiyuan=request.getParameter("huiyuan");

if(account.equals(password)){
out.print("注册成功");
 }else if(account.equals(password)&&huiyuan.equals("yes"))
       {out.print("欢迎您成为会员！");
       }else if(account.equals(password)&&huiyuan.equals("no")) {
out.print("没有成为会员"); 
}else{
out.print("登录错误");}
%>
  </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"%>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>

  <head>
   <title>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</title>
  </head>
   <body>
    <form action="second.jsp">
    输入一个数：<input type="text" name="shu"><br>
    <input type="submit" value="提交">
    </form>    
  </body>

  </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>
    <%
    String shu=request.getParameter("shu");
    int n=Integer.parseInt(shu); 
    for(int i=0;i<n;i++){
    out.print("欢迎"+"!! ");
    }
     %>
  </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"%>
<html>
  <head>
    <title>first</title>
  </head>  
  <body>
    <form action="panduan.jsp">
    账号：<input type="text" name="account"><br>
    密码：<input type="password" name="password"><br>
    <input type="submit" value="登录">
    </form>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>second</title>
  </head>  
  <body>
   <%
        request.setCharacterEncoding("utf-8");
        String account = request.getParameter("account");
        String password=request.getParameter("password");
    %>
  <form action="three.jsp">
  登录成功！<br>
  请输入用户名：<input type="text" name="uname">
  <input type="hidden" name="src1" value="<%=account%>" />
  <input type="hidden" name="src2" value="<%=password%>" />
  <input type="submit" value="提交">
  </form>
  </body>
</html>

 

 

 

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title>three</title>
  </head>  
  <body>
    <%
    String uname=request.getParameter("uname");
    String src1=request.getParameter("src1");
    String src2=request.getParameter("src2");
     %>
     <%=uname %>用户信息如下：<br>
     账号:<%=src1 %><br>
     密码:<%=src2 %>
  </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 account=request.getParameter("account");
    String password=request.getParameter("password");
    if(account.equals(password)){
    request.getRequestDispatcher("second.jsp").forward(request,response);
    }else{
    out.print("登录失败！请重试");
    }
     %>     

  </body>
</html>

 

 

 

posted @ 2022-04-16 20:09  溜溜梅1  阅读(29)  评论(0)    收藏  举报