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> <head> </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 %></b><br> 商品价格：<%=price %></p> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title></title> </head> <body bgcolor=#ffccff> <% double price=98.78; %> <p style="fount-family:宋体;font-size:36;color:blue"> 商品编号A001，价格8765 <a href="example4-9receive.jsp?id=A1001&price=8765">购买</a><br> 商品编号A002，价格<%=price %> <a href="example4-9receive.jsp?id=A1002&price=<%=price%>">购买</a></p> </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> <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"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> </head> <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"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <script type="text/javascript"> function validate() { if (loginForm.id.value == "") { alert("账号不能为空"); return; } else if (loginForm.mi.value == "") { alert("密码不能为空"); return; } loginForm.submit(); } </script> <form name="loginForm" action="panduan.jsp" method="post"> 请输入相同的账号密码 <br> 账号: <input type="text" name="id" value="请输入账号"> <br> 密码: <input type="password" name="mi" value="请输入密码"> <br> <input type="button" name="admir" 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> <body> 登录失败！ </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> 登录成功！ </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <% 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 id = request.getParameter("id"); String mi = request.getParameter("mi"); if (id.equalsIgnoreCase(mi)) { request.getRequestDispatcher("ok.jsp").forward(request, response); } else { request.getRequestDispatcher("no.jsp").forward(request, response); } %> </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> <body> <script type="text/javascript"> function validate() { if (loginForm.id.value == "") { alert("账号不能为空"); return; } else if (loginForm.mi.value == "") { alert("密码不能为空"); return; } loginForm.submit(); } </script> <form name="loginForm" action="panduan.jsp" method="post"> 请输入相同的账号密码 <br> 账号: <input type="text" name="id" value="请输入账号"> <br> 密码: <input type="password" name="mi" value="请输入密码"> <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="button" name="admir" 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> <body> 登录失败！ </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> 登录成功！ <% request.setCharacterEncoding("utf-8"); String[] huiyuan = request.getParameterValues("huiyuan"); for (int i = 0; i < huiyuan.length; i++) { if (huiyuan[i].equals("yes")) { out.print("欢迎您注册为会员！"); } } %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <% 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 id = request.getParameter("id"); String mi = request.getParameter("mi"); if (id.equalsIgnoreCase(mi)) { request.getRequestDispatcher("ok.jsp").forward(request, response); } else { request.getRequestDispatcher("no.jsp").forward(request, response); } %> </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> <head> </head> <body> 请输入一个数字 : <form action="ok.jsp" method=post> <input type="text" name="shu" value=""> <input type="submit" value="确定"> </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> <% request.setCharacterEncoding("utf-8"); String shu=request.getParameter("shu"); double j=Double.parseDouble(shu); for(int i=1;i<j;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"%> <% 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.id.value == "") { alert("账号不能为空"); return; } else if (loginForm.mi.value == "") { alert("密码不能为空"); return; } loginForm.submit(); } </script> <form name="loginForm" action="panduan.jsp" method="post"> 请输入相同的账号密码 <br> 账号: <input type="text" name="id" value="请输入账号"> <br> 密码: <input type="password" name="mi" value="请输入密码"> <br> <input type="button" name="admir" 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> <body> 登录失败！ </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 id = request.getParameter("id"); %> <form action="zuihou.jsp" method="post"> 请输入姓名: <input type="text" name="xingming" value=""> <input type="submit" value="确定"> <input type="hidden" name="id" value="<%=id%>" /> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <% 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 id = request.getParameter("id"); String mi = request.getParameter("mi"); if (id.equalsIgnoreCase(mi)) { request.getRequestDispatcher("ok.jsp").forward(request, response); } else { request.getRequestDispatcher("no.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> <% request.setCharacterEncoding("utf-8"); String id = request.getParameter("id"); String name = request.getParameter("xingming"); out.print("用户姓名：" + name + "<br>" + "用户账号：" + zh); %> </body> </html>
