jsp第七周作业
1.教材P78-79 例4-9
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> 商品编号A1001，价格8765<a href="0413a.jsp?id=A1001&price=8765">购买</a> 商品编号A1002，价格8765<a href="0413a.jsp?id=A1002&price=98.78">购买</a> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="ISO-8859-1"> <title>Insert title here</title> </head> <% String a =request.getParameter("id");
2.教材P97 实验2
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="ISO-8859-1"> <title>Insert title here</title> </head> <body> <form action="0413b.jsp" > 输入运算数，选择运算符号<br> <input name="a"> <select name="b"> <option value="+">加 <option value="-">减 <option value="*">乘 <option value="%">除 </select> <input name="c"> <input type="submit"> </form> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% String a = request.getParameter("a"); String b = request.getParameter("b"); String c = request.getParameter("c"); if(a==null && c==null){ out.print("输入错误"); } double aa = Double.parseDouble(a); double cc = Double.parseDouble(c); if("+".equals(request.getParameter("b"))){ out.print(aa+cc); } if("-".equals(request.getParameter("b"))){ out.print(aa-cc); } if("*".equals(request.getParameter("b"))){ out.print(aa*cc); } if("%".equals(request.getParameter("b"))){ out.print(aa/cc); } %> </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" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <form action="0413c.jsp" > 账号<input id="nn" name ="a" type="text"> 密码<input id="xx" name ="b" type="text"> <input id="button" type="submit" onclick="return a"> <input type="checkbox" name="vip" value="是否成为会员" checked="checked"/>是否成为会员 </form> <script type="text/javascript"> var btn = document.getElementById("button"); btn.onclick = function(){ var nn = document.getElementById("nn"); var xx = document.getElementById("xx"); if(nn.value=="" ||xx.value==""){ alert("不能为空"); return false; } } </script> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% if(request.getParameter("a").equals(request.getParameter("b"))){ out.println("登录成功"); if(request.getParameterValues("vip")!=null){ out.print("欢迎您注册为会员"); } }else{ out.println("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”。
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" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <form action="0413d.jsp"> <input name="a" type="text" > <input type="submit" value="提交"> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% int a = Integer.valueOf(request.getParameter("a")); for(int i = 0 ; i <= a-1 ; i++){ out.println("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。（转发）request.getRequestDispacher.....forward
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <form action="0413e.jsp" > 账号<input name ="a" type="text"> 密码<input name ="b" type="text"> <input type="submit" value="提交"> </form> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% Object s =request.getAttribute("a"); %> 页面二 <form action="0413f.jsp?a=1" > 姓名<input name ="c" type="text"> <input name="acount" type="hidden" value="<%= s %>"> <input type="submit" value="提交"> </form> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <% if(request.getParameter("a").equals(request.getParameter("b"))){ request.setAttribute("a", request.getParameter("a")); request.getRequestDispatcher("/04130601.jsp").forward(request, response); }else{ out.println("登录失败"); } %> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> 姓名：<%= request.getParameter("c") %> 账号：<%= request.getParameter("acount")%> </body> </html>
