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> <% double price = 98.78; %> <p style = "font-family:宋体;font-size:18;color:blue"> 商品编号A1001,价格8765 <a href = "example4-9-receive.jsp?id=A1001&price=8765">购买</a><br> 商品编号A1002,价格<%=price %> <a href = "example4-9-receive.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> <head> </head> <body> <% double price = 98.78; %> <p style = "font-family:宋体;font-size:18;color:blue"> 商品编号A1001,价格8765 <a href = "example4-9-receive.jsp?id=A1001&price=8765">购买</a><br> 商品编号A1002,价格<%=price %> <a href = "example4-9-receive.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"%> <% 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> <form action="computer.jsp" method="post"> <input type="text" name="numberOne" value=""><br> <input type="text" name="numberTwo" value=""><br> <select name="operator"> <option value="+">加 <option value="-">减 <option value="*">乘 <option value="/">除 </select><br> <input type="submit" name="submit" value="提交"><br> </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> <% String numberOne = request.getParameter("numberOne"); String numberTwo = request.getParameter("numberTwo"); String operator = request.getParameter("operator"); String submit = request.getParameter("submit"); 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 c = 0; if(operator.equals("+")){ c=a+b; }else if(operator.equals("-")){ c=a-b; }else if(operator.equals("*")){ c=a-b; }else if(operator.equals("/")){ c=a/b; } out.print(a+""+operator+""+b+"="+c); }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> <form action="dorge.jsp" method="post"> 账号:<input type="text" name="uname" ><br> 密码:<input type="passWord" name="upwd" ><br> <input type="submit" value="提交"> <input type="reset" value="重置"> </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("admin")&&upwd.equals("admin")) 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> <head> </head> <body> 登录成功! </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> 登陆失败! </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"%> <% 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> <form action="dorge.jsp" method="post"> 账号:<input type="text" name="uname" ><br> 密码:<input type="passWord" name="upwd" ><br> 是否注册会员:<input type="checkbox" name="hy" value="是">是 <input type="checkbox" name="hy" value="否">否<br> <input type="submit" value="提交"> <input type="reset" value="重置"> <script type="text/javascript"> function validate(){ if(loginForm.account.value==""){ alert("账号不能为空!"); return; } if(loginForm.password.value==""){ alert("密码不能为空!"); return; } if (loginForm.validationCode.value == "") { alert("验证码不能为空，请输入验证码"); loginForm.validationCode.focus(); return; } if (loginForm.validationCode.value != loginForm.validationCode1.value) { alert("请输入正确的验证码"); loginForm.validationCode.focus(); return; } login.submit(); } </script> </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("admin")&&upwd.equals("admin")) 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> <head> </head> <body> 登录成功! <% String hy=request.getParameter("hy"); if(hy.equals("是")){ out.print("欢迎您注册为会员"); } %> </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> 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"%> <% 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> <form action="example_5_1.jsp" method="post"> 请输入数字:<input type="text" name="number" ><br> <input type="submit" name="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> <head> </head> <body> <% request.setCharacterEncoding("utf-8"); String number = request.getParameter("number"); int a = Integer.parseInt(number); for (int i = 0; i < a; 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> <head> </head> <body> <form action="pase2.jsp" method="post" name="login"> 账号:<input type="text" name="zh" ><br> 密码:<input type="password" name="uwd" ><br> <input type="button" value="登录" onclick="panduan()"/> </form> <script type="text/javascript"> function panduan(){ if(login.zh.value==""){ alert("账号不能为空"); return; } if(login.uwd.value==""){ alert("密码不能为空"); return; } login.submit(); } </script> </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 zh = request.getParameter("zh"); String uwd = request.getParameter("uwd"); if(zh.equals("admin")&&uwd.equals("admin")) request.getRequestDispatcher("pase3.jsp").forward(request, response); else out.print("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> <head> </head> <body> <% request.setCharacterEncoding("utf-8"); String name = request.getParameter("zh"); %> <form action="pase4.jsp" method="post"> 用户姓名<input type="text" name="uname" /><br> <input type="submit" value="提交" /> <input type="hidden" name="src" value="<%= name%>" /> </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 src = request.getParameter("src"); String name = request.getParameter("uname"); %> 账号：<%=src%><br> 姓名：<%=name%> </body> </html>
