JSP第七周作业

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><body bgcolor=#ffccff>
<%
 double price=98.78;
 %>
 <p style="font-family:宋体;font-size:36;color:blue">
 商品编号 A1001,价格8765
 <a href="MyJsp.jsp?id=A1001&price=8765">购买</a><br>
 商品编号 A1002,价格<%=price %>
 <a href="MyJsp.jsp?id=A1002&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>
  <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 %>
     </b>
  </body>
</html>

 

2.教材P97 实验2

<body bgcolor=#ffccff>
<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="+"><option value="-"><option value="* "><option value="/"></select>
<input type=text name="numberTwo" size=6/>
<br><input type="submit" name="submit" value="提交"/>
</form>
</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>   <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("index.jsp");
                return;
            }
            try {
                double x = Double.parseDouble(numberOne);
                double y = Double.parseDouble(numberTwo);
                double m = 0;
                if (operator.equals("+"))
                    m = x + y;
                else if (operator.equals("-"))
                    m = x - y;
                else if (operator.equals("*"))
                    m = x * y;
                else if (operator.equals("/"))
                    m = x / y;
                out.print(x + "" + operator + "" + y + "=" + m);
            } catch (Exception e) {
                out.print("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"%>
<%
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>
  </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="z.jsp" method="post">
        用户名:<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"%>
<%
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>
  </head>
  
  <body>
    <%
        request.setCharacterEncoding("utf-8");
        String uname = request.getParameter("uname");
        String upwd = request.getParameter("upwd");
        if (uname.equals(upwd))
            request.getRequestDispatcher("scend.jsp").forward(request,response);
        else
            request.getRequestDispatcher("frist.jsp").forward(request,response);
    %>
  </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>
  </head>
  
  <body>
   <p>登录失败!</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>
  <body>
   <p>登录成功!</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"%>
<%
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>
  </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="z.jsp" method="post">
        用户名:<input type="text" name="uname"><br> 密码: <input
            type="password" name="upwd"> <br> 是否注册为会员:<input
            type="checkbox" name="member" value="注册">注册 <input
            type="checkbox" name="member" value="不注册">不注册<br> <input
            type="button" value="登录" onClick="validate()">
        
    </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>
  </head>
  
  <body>
    <%
        request.setCharacterEncoding("utf-8");
        String uname = request.getParameter("uname");
        String upwd = request.getParameter("upwd");
        if (uname.equals(upwd))
            request.getRequestDispatcher("scend.jsp").forward(request,response);
        else
            request.getRequestDispatcher("frist.jsp").forward(request,response);
    %>
  </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>
  </head>
  
  <body>
   <p>登录失败!</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>
  <body>
   <p>登录成功!</p>
   <%
        request.setCharacterEncoding("utf-8");
        String[] member = request.getParameterValues("member");
        for (int i = 0; i < member.length; i++) {
            if (member[i].equals("注册")) {
                out.print("欢迎您注册为会员!");
            }
        }
    %>
  </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>
  <body>
  <form action="scend.jsp" name="logindo">
        请输入数字: <input type="text" name="number" size=6><br> <input
            type="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>
  <body>
    <%
        String number = request.getParameter("number");
        int n = Integer.parseInt(number);

        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"%>
<%
    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>
    <script type="text/javascript">
        function validate() {
            if (loginForm.account.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="z.jsp" method="post">
        账号:<input type="text" name="account"><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"%>
<%
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>
  </head>
  
  <body>
    <%
        request.setCharacterEncoding("utf-8");
        String uname = request.getParameter("account");
        String upwd = request.getParameter("upwd");
        if (uname.equals(upwd))
            request.getRequestDispatcher("scend.jsp").forward(request,response);
        else
            request.getRequestDispatcher("frist.jsp").forward(request,response);
    %>
  </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>
   <p>登录成功!</p>
   <%
        request.setCharacterEncoding("utf-8");
        String[] member = request.getParameterValues("member");
        request.setCharacterEncoding("utf-8");
        String account = request.getParameter("account");
    %>
    <form action="MyJsp.jsp" method="post">
        用户名:<input type="text" name="username"><br>
        <br> <input type="submit" name="submit" value="提交"> <input
            type="hidden" name="account" value="<%=account%>">
    </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>
  <body>
   <p>登录失败!</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>
  
  <body>
    <%
        request.setCharacterEncoding("utf-8");
        String account = request.getParameter("account");
        String uname = request.getParameter("username");
        out.print("账号:" + account + "<br>" + "<br>"+"用户名:" + uname);
    %>
  </body>
</html>

 

posted @ 2022-04-17 18:18  F85  阅读(7)  评论(0编辑  收藏  举报