jsp第七周作业
1.教材P78-79 例4-9
<%@ page contentType="text/html"%> <%@ page pageEncoding="utf-8"%> <html> <head> <title>My JSP 'index.jsp' starting page</title> </head> <body bgcolor=#ffccff> <% double price=98.78; %> <p style="font-family: 宋体;font-size: 36;color: blue"> 商品编号 A1001，价格8765 <a href="receive.jsp?id=A1001&price=8765">购买</a><br> 商品编号 A1002，价格<%=price %> <a href="receive.jsp?id=A1002&price=<%=price%>">购买</a> </p> </body> </html>
<%@ page contentType="text/html"%> <%@ page pageEncoding="utf-8"%> <html> <head> <title>My JSP 'index.jsp' starting page</title> </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 %> </b> </p> </body> </html>
2.教材P97 实验2
<%@ page contentType="text/html"%> <%@ page pageEncoding="utf-8"%> <HTML><body bgcolor=#ffccff> <form action="computer.jsp" method=post name=form> <p style="font一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"/> </p> </form> </body> </HTML>
<%@ page contentType="text/html"%> <%@ page pageEncoding="utf-8"%> <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("请输人数字字符"); } %> </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"%> <!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>
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> <form action="wellcome.jsp" method="post"> 请输入欢迎个数:<input type="text" name="wellcome"><br> <input type="submit" value="提交"> </form> </body> </html> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>欢迎</title> </head> <body> <% String wellcome=request.getParameter("wellcome"); int num=Integer.parseInt(wellcome); for (int i=1;i<=num;i++){ out.println("欢迎"); } %> </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 > <html> <head> <title></title> </head> <body> <script> function lg() { if (form.user.value == "") { alert("账号不能为空!"); return; } if (form.password.value == "") { alert("密码不能为空!"); return; } if (form.validationCode.value == "") { alert("验证码不能为空，请输入验证码"); form.validationCode.focus(); return; } if (form.validationCode.value != form.validationCode1.value) { alert("请输入正确的验证码"); form.validationCode.focus(); return; } form.submit(); } </script> <% int intmethod1 = (int) ((((Math.random()) * 5)) + 1); int intmethod2 = (int) ((((Math.random()) * 5)) + 1); int intmethod3 = (int) ((((Math.random()) * 5)) + 1); int intmethod4 = (int) ((((Math.random()) * 5)) + 1); String intsum = intmethod1 + "" + intmethod2 + intmethod3 + intmethod4; %> <form action="login.jsp" method="post" name="form"> 用户名:<input type="text" name="user" /> <br> 密码：<input type="password" name="password" /><br> 验证码：<input type="text" name="validationCode" onKeyDown="if(event.keyCode==13){form.submit.focus();}" size="6"> <input type="button" name="validationCode1" size="1" value="<%=intsum%>"><br> 是否注册会员：<input type="radio" name="lg" value="是" />是 <input type="radio" name="lg" value="否" />否 <br> <input type="submit" value="登录" onclick="yz()" /> <br> </form> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML > <html> <head> <title>My JSP 'index.jsp' starting page</title> </head> <body> <% request.setCharacterEncoding("utf-8"); String user = request.getParameter("user") == null ? "" : request.getParameter("user"); String password = request.getParameter("password") == null ? "": request.getParameter("password"); if (user.equals(password)) { request.getRequestDispatcher("03ok.jsp").forward(request, response); } else { request.getRequestDispatcher("03no.jsp").forward(request, response); } %> </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> <h1>登陆成功</h1> <% request.setCharacterEncoding("utf-8"); String lg=request.getParameter("lg"); if(lg.equals("是")){ out.print("欢迎您注册为会员"); } %> </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> <h1>登陆失败</h1> <% request.setCharacterEncoding("utf-8");%> </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 > <html> <head> <title>My JSP 'index.jsp' starting page</title> </head> <body> <form action="index1.jsp" method="post"> <input type="text" name="num" /> <input type="submit" value="提交" /> </form> </body> </html> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML > <html> <head> <title>My JSP 'index.jsp' starting page</title> </head> <body> <% String string=request.getParameter("num"); int i=string==null? -1:Integer.parseInt(string); for(int j=0;j<i;j++){ 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"%> <!DOCTYPE HTML > <html> <head> <title>My JSP 'index.jsp' starting page</title> </head> <body> <script> function yz() { if (form.zh.value == "") { alert("用户名不能为空!"); form.zh.focus(); return; } if (form.password.value == "") { alert('密码不能为空!'); form.password.focus(); return; } if(form.zh.value==form.password.value){ form.submit(); }else{ alert('登陆失败'); form.password.focus(); return; } } </script> <form action="index1.jsp" method="post" name="form"> <table> <tr> <td>账号</td> <td><input type="text" name="zh" /> </td> </tr> <tr> <td>密码</td> <td><input type="password" name="password" /> </td> </tr> <tr> <td><input type="button" value="登录" onclick="yz()" /> </td> </tr> </table> </form> </body> </html> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML > <html> <head> <title>My JSP 'index.jsp' starting page</title> </head> <body> <% String zh=request.getParameter("zh"); %> <form action="index2.jsp" method="post"> <input type="text" name="name" /> <input type="submit" value="提交" /> <input type="hidden" name="zh" value="<%=zh %>"/> </form> </body> </html> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML > <html> <head> <title>My JSP 'index.jsp' starting page</title> </head> <body> <% request.setCharacterEncoding("utf-8"); String zh=request.getParameter("zh"); String name=request.getParameter("name"); out.print("用户姓名："+name+"<br>"+"用户账号："+zh); %> </body> </html>
