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"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <% String admin=request.getParameter("admin"); String pass=request.getParameter("pass"); if(admin.equals(pass)){ request.getRequestDispatcher("week7_05.jsp").forward(request, response); } else{ response.sendRedirect("week7_07.jsp"); } %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <script type="text/javascript"> function login(){ if(logindo.admin.value==""){ alert("请输入账号"); return; } else if(logindo.pass.value==""){ alert("请输入密码"); return; } logindo.submit(); } </script> <form action="week7_04.jsp" name ="logindo"> <p style="font-family: 宋体;font-size: 18; color:blue"> 账号: <input type="text" name="admin" size=6/> 密码: <input type="password" name="pass" size=6/> <br><input type="button" value="登录" onclick="login()"/> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> 登录成功!!!!!!! </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> 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”
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <script type="text/javascript"> function login(){ if(logindo.admin.value==""){ alert("请输入账号"); return; } else if(logindo.pass.value==""){ alert("请输入密码"); return; } logindo.submit(); } </script> <form action="week7_08.jsp" name ="logindo"> <p style="font-family: 宋体;font-size: 18; color:blue"> 账号: <input type="text" name="admin" size=6/> 密码: <input type="password" name="pass" size=6/> 是否注册会员: <input type="checkbox" name="yes" value="注册"/>注册 <input type="checkbox" name="yes" value="不注册"/>不注册 <br><input type="button" value="登录" onclick="login()"/> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <% String admin=request.getParameter("admin"); String pass=request.getParameter("pass"); if(admin.equals(pass)){ request.getRequestDispatcher("week7_05.jsp").forward(request, response); } else{ response.sendRedirect("week7_07.jsp"); } %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> 登录失败!!!!!!! </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> 登录成功!!!!!!! </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"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <form action="week7_10.jsp" name ="logindo"> <p style="font-family: 宋体;font-size: 18; color:blue"> 请输入数字 <input type="text" name="num" size=6/> <br><input type="submit" value="提交"/> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <% String num=request.getParameter("num"); int n=Integer.parseInt(num); 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。(转发)request.getRequestDispacher.....forward
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <script type="text/javascript"> function login(){ if(logindo.admin.value==""){ alert("请输入账号"); return; } else if(logindo.pass.value==""){ alert("请输入密码"); return; } logindo.submit(); } </script> <form action="MyJsp02.jsp" name ="logindo"> <p style="font-family: 宋体;font-size: 18; color:blue"> 账号: <input type="text" name="admin" size=6/> 密码: <input type="password" name="pass" size=6/> <br><input type="button" value="登录" onclick="login()"/> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <% String admin=request.getParameter("admin"); String pass=request.getParameter("pass"); if(admin.equals(pass)){ request.getRequestDispatcher("week7_05.jsp").forward(request, response); } else{ response.sendRedirect("week7_07.jsp"); } %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> <% String admin=request.getParameter("admin"); String uname=request.getParameter("uname"); out.print("账号:"+admin+"</br>"+"用户名称"+uname); %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <body> 登录成功!!!!!!! <% String admin=request.getParameter("admin"); %> <form action="MyJsp03.jsp"> 用户名:<input type="text" name="uname" /> <input type="submit" value="提交"/> <input name="admin" type="hidden" value="<%= admin %>"> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> 登录失败! </body> </html>