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 + "/"; %> <% double price = 98.78; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head></head> <body> <p style="font-family: 宋体;font-size: 36;color: blue;"> 商品编号 A1001，价格8765 <a href="index.jsp?id=A1001&price=8765">购买</a><br> 商品编号 A1002，价格<%=price%> <a href="index.jsp?id=A1002&price=<%=price%>">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></head> <body> <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> </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> <head> </head> <body> <% String numberone=request.getParameter("numberone"); String numbertwo=request.getParameter("numbertwo"); String operator=request.getParameter("operator"); if(numberone==null||numberone.length()==0){ response.sendRedirect("two.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.print("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> <form action="one.jsp" > 输入运算数，选择运算符号：<br> <input type="text" name="numberone"> <select name="operator"> <option selected="selected" value="+">+ <option value="-">- <option value="*">* <option value="/">/ </select> <input type="text" name="numbertwo"><br> <input type="submit" name="submit" value="提交"><br> </form> </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> <head> </head> <body> <script type="text/javascript"> function validate() { if (loginForm.account.value == "") { alert("账号不能为空！"); return; } else if (loginForm.password.value == "") { alert("密码不能为空！"); return; } loginForm.submit(); } </script> <form action="fff.jsp" > 用 户 名: <input type="text" name="uname"><br> 密       码: <input type="password" name="upwd"><br> <input type="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 uname=request.getParameter("uname"); String upwd=request.getParameter("upwd"); if(uname.equals(upwd)){ request.getRequestDispatcher("ok.jsp").forward(request,response); } else{ response.sendRedirect("no.jsp"); } %> </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> <head> </head> <body> <script type="text/javascript"> function validate() { if (loginForm.account.value == "") { alert("账号不能为空！"); return; } else if (loginForm.password.value == "") { alert("密码不能为空！"); return; } loginForm.submit(); } </script> <form action="bb.jsp" > 用 户 名: <input type="text" name="uname"><br> 密       码: <input type="password" name="upwd"><br> <input type="checkbox" name="check">注册会员 <input type="checkbox" name="nocheck">跳过 <input type="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 uname=request.getParameter("uname"); String upwd=request.getParameter("upwd"); String check=request.getParameter("check"); String nocheck=request.getParameter("check"); if(uname.equals(upwd)){ out.println("登陆成功"); if(check.equals("on"))out.print("欢迎您注册会员"); else if(nocheck.equals("on"))out.print("欢迎使用"); } else{ out.println("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"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> </head> <body> <form action="bbb.jsp" > 请输入一个数字 <input type="text" name="num"><br> <input type="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 num=request.getParameter("num"); double n=Double.parseDouble(num); for(int i=0;i<n;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。
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> </head> <body> <script > function validate() { if (loginForm.account.value == "") { alert("账号不能为空！"); return; } else if (loginForm.password.value == "") { alert("密码不能为空！"); return; } loginForm.submit(); } </script> <form action="dd.jsp" > 账号: <input type="text" name="uname"><br> 密码: <input type="password" name="upwd"><br> <input type="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 uname=request.getParameter("uname"); String upwd=request.getParameter("upwd"); if (uname.equals(upwd)) { request.getRequestDispatcher("ee.jsp").forward(request, response); } else { response.sendRedirect("no.jsp"); } %> </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 uname=request.getParameter("uname"); %><br> <form action="ff.jsp" > 用 户 名: <input type="text" name="name"><br> <input type="submit" value="提交"> <input name="uname" type="hidden" value="<%=uname%>"> </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 uname=request.getParameter("uname"); String name=request.getParameter("name"); out.print("账号是"+uname+",密码是"+name); out.print(name); %> </body> </html>
