JavaWeb第五次作业4.13

1.教材78，79页

<%@ 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 '11.jsp' starting page</title>
  </head>
  <body bgcolor = #blue>
  <%
  double price = 98.78; 
  %>
    <p style="font-famliy:宋体;font-size:36;color:pink">
    商品编号 A1001，价格8795
    <a href="12.jsp?id=A1001&price=8756">购买</a><br>
     商品编号 A1002，价格<%= price %>
    <a href="12.jsp?id=A1002&price=8756">购买</a><br>
    </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>
    <title>My JSP '12.jsp' starting page</title>
  </head>
  <body bgcolor = #blue>
   <p styl"font-famliy:宋体; font-size:36;color:blue">
    <% 
    String id = request.getParameter("id");
    String price = request.getParameter("price");
    %>
    <b> 商品编号：<%= id %> <br>
    <b> 商品价格：<%= price %> 
    </p>
  </body>
</html>

2. 97页实验2

<%@ 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>
  
  <body bgcolor=cyan>
  <p style =" font-family:宋体;font-size:18;color:black">
 <%
  String numberOne =request.getParameter("numberOne");
  String numberTwo =request.getParameter("numberTwo");
  String operator =request.getParameter("operator");
  if(numberOne == null||numberOne.length()==0){
        response.sendRedirect("input.jsp");
        return;
        }
  else if(numberTwo == null||numberTwo.length()==0){
        response.sendRedirect("input.jsp");
        return;
        }
        try{
        double a =Double.parseDouble(numberOne);
        double b =Double.parseDouble(numberTwo);
        double r=0;
        if(operator.equals("+"))
         r=a+b;
         else if(operator.equals("-"))
         r=a-b;
         else if(operator.equals("*"))
         r=a*b;
         else if(operator.equals("/"))
         r=a/b;
         out.print(a+""+operator+""+b+"="+r);
         }
         catch(Exception e){
         out.println("请输入数字字符");
         }
  %>
  </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>
  
  <body bgcolor=#ffcff>
  <form action="computer.jsp" method=post name=form>
  <p style =" font-family:宋体;font-size:18;color:blue">
  输入运算数，选择运算符号：<br>
   <input type = text name ="numberOne" size=6/>
       <select name ="operator">
         <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>
    </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"%>
 
<html>
<head>
<title></title>
</head>
<body>
    <script type="text/javascript">
        function validate() {
            if (loginForm.uname.value == "") {
                alert("账号不能为空!");
                return;
            }
            if (loginForm.upwd.value == "") {
                alert("密码不能为空!");
                return;
            }
            loginForm.submit();
        }
    </script>
 
    <form name="loginForm" action="2.jsp" method="post">
        账号:<input type="text" name="uname"><br> 密码: <input
            type="password" name="upwd"> <br>
        <input type="button" value="登录" onClick="validate()">
    </form>
</body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 
<html>
<head>
<title></title>
</head>
<body>
    <%
        request.setCharacterEncoding("utf-8");
        String uname = request.getParameter("uname");
        String upwd = request.getParameter("upwd");
        if (uname.equals(upwd))
            request.getRequestDispatcher("3.jsp").forward(request,
                    response);
        else
            request.getRequestDispatcher("4.jsp").forward(request,
                    response);
    %>
</body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 
<html>
  <head>
    <title></title>
  </head>
  <body bgcolor=#ffccff>
   <p>登录成功！</p>
  </body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
 
<html>
  <head>
    <title></title>
  </head>
  <body bgcolor=#EEEEFF>
   <p>登录失败！</p>
  </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"%>
<html>
  <head>
  </head>
  <body>
  <form action="2.jsp" method="post">
        账号：<input type="text" name="zh" /><br>
       密码: <input type="password" name="upwd" ><br>
      注册会员<input type="checkbox" name="checkbox" value="会员"/><br>
      不注册会员<input type="checkbox" name="checkbox" value="非会员"/><br>
        <input type="submit" value="提交"/>
        <input type="reset" value="重置"/>
    </form>
  </body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
  <title></title>
  </head>
  <body>
     <%
            String zh=request.getParameter("zh");
            String upwd=request.getParameter("upwd");
            if(zh.equals(upwd)){
            if(request.getParameterValues("checkbox")!=null){
            out.print("欢迎您注册为会员！"+"<br>");
    }
            out.print("登陆成功");   
            }
            else{
                  out.print("登陆失败 ");
            }
         %>
   </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"%>
<html>
  <head>
    <title></title>
  </head>
  <body>
  <form action="2.jsp" method="post">
  <input  type="text" name="num"  />
  <input type="submit" value="提交" />
  </form>
  </body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
    <title></title>
  </head>
  <body>
  <%
  String string=request.getParameter("num");
  int i=string==null? -1:Integer.parseInt(string);
  for(int j=0;j<i;j++){
  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"%>
<html>
  <head>
  </head>
  <body>
  <form action="3.jsp" >
   账号:<input name ="n" type="text"><br>
   密码:<input name ="p" type="password"><br>
  <input  type="submit" value="提交">
  </form>
  </body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
  </head>
  <body>
  <%
  String n =request.getParameter("n");
  String p=request.getParameter("p");
  if(n.equals(p)){
  request.getRequestDispatcher("lose.jsp").forward(request, response);
  }else{
  out.print("登陆失败");
  }
  %>  
  </body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
  </head>
  <body>
    登陆成功<br>
  <form action="4.jsp">
  <%String n=request.getParameter("n"); %>
    姓名：<input type="text" name="n"/><br>
  <input type="hidden" name="zh" value="<%=n%>"/>
  <input type="submit" value="提交"/>
  </form>
  </body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
  <head>
  </head>
  <body>
  <%
   String n =request.getParameter("n");
   String zh =request.getParameter("zh");
   %>
     账号:<%=zh%>
     姓名:<%=n%>
  </body>
</html>

posted on 2022-04-17 16:51 郝梦瑶阅读(33) 评论(0) 编辑收藏举报

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