第七周作业
1.教材P78-79 例4-9
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page contentType="text/html" %> <html><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A1001，价格<%=price %> <a href="receive.jsp?id=A1002&price=<%=price %>">购买</a> </p> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page contentType="text/html" %>
<html><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>
</body>
</html>
2.教材P97 实验2
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.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>
<form action="index1.jsp" method="post" name="form">
<p style="font-family: 宋体;font-size: 18; color: blue">
输入运算数，选择运算符:<br> <input type="text" name="num1" size=6 /> <select
name="oper">
<option selected="selected" value="+">加
<option value="-">减
<option value="*">乘
<option value="/">除
</select>
<input type="text" name="num2" size=6 />
<input type="submit" value="提交">
</p>
</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） 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"%> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index1.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> <p style="font-family: 宋体; font-size: 18;color: black;"> <% String num1 = request.getParameter("num1"); String num2 = request.getParameter("num2"); String oper = request.getParameter("oper"); if (num1 == null || num1.length() == 0) { response.sendRedirect("index.jsp"); return; } else if (num2 == null || num2.length() == 0) { response.sendRedirect("index.jsp"); return; } try { double a = Double.parseDouble(num1); double b = Double.parseDouble(num2); double x = 0; if (oper.equals("+")) { x = a + b; } else if (oper.equals("-")) { x = a - b; } else if (oper.equals("*")) { x = a * b; } else if (oper.equals("/")) { x = a / b; } out.print(a+""+oper+""+b+"="+x); } catch (Exception e) { out.print("请输入数字字符"); } %> </p> </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）
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>
<title>My JSP 'login.jsp' starting page</title>
</head>
<body>
<%
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 name="loginForm" action="target.jsp" method="post">
请输入账号：<input type="text" name="account"> <br>
请输入密码：<input type="password" name="password"> <br>
验证码：<input type="text" name="validationCode" onKeyDown="if(event.keyCode==13){loginForm.submit.focus();}" size="6">
<input type="button" name="validationCode1" size="1" value="<%=intsum%>" /><br>
是否注册会员：<input type="radio" name="sf" value="是" />是
<input type="radio" name="sf" value="否" />否<br>
<input type="button" value="登录" onClick="validate()">
</form>
<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;
}
loginForm.submit();
}
</script>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'target.jsp' starting page</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String uname = request.getParameter("account");
String upwd = request.getParameter("password");
if (uname.equals("admin") && upwd.equals("admin"))
request.getRequestDispatcher("succes.jsp").forward(request,
response);
else
request.getRequestDispatcher("fail.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>
<base href="<%=basePath%>">
<title>My JSP 'succes.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>
<h1>登录成功！！！！</h1>
<%
request.setCharacterEncoding("utf-8");
String sf=request.getParameter("sf");
if(sf.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>
<base href="<%=basePath%>">
<title>My JSP 'fail.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>
<h1>登陆失败！！！</h1>
</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>
<title>My JSP 'page.jsp' starting page</title>
</head>
<body>
<form action="page1.jsp" method="post" name="page0">
输入一个数字：<input type="number" name="number1"><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"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'page1.jsp' starting page</title>
</head>
<body>
<%
//设置编码
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
//获取数据
String number = request.getParameter("number1");
//转换数据类型
int n = Integer.parseInt(number);
//循环
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.getRequestDispatcher.....forward (request,response)
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'reg.jsp' starting page</title>
</head>
<body>
<form action="one.jsp" method="post" name="zero">
<p>
<span>账号：</span>
<input type="text" name="account" >
</p>
<p>
<span>密码：</span>
<input type="password" name="pwd" >
</p>
<p>
<input type="submit" value="提交">
<input type="reset" value="重置">
</p>
</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>
<title>My JSP 'one.jsp' starting page</title>
</head>
<body>
<%
//设置编码
request.setCharacterEncoding("UTF-8");
//获取数据
String account=request.getParameter("account");
String pwd=request.getParameter("pwd");
//判断账号，密码是否相同
if(account.equals("admin")&&pwd.equals("admin")){
request.getRequestDispatcher("two.jsp").forward(request,response);
}else{
response.sendRedirect("reg.jsp");
}
%>
</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 'two.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>
<form action="three.jsp" method="post" name="three">
请输入姓名：<input type="text" name="name"><br>
<input id="hidden_account" type="hidden"
value="<%=request.getParameter("account")%>" />
<input type="submit" value="提交" onclick="doClick()">
</form>
<script type="text/javascript">
function doClick() {
document.forms[0].action = "six/three.jsp?account="
+ document.getElementById("hidden_account").value;
document.forms[0].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>
<base href="<%=basePath%>">
<title>My JSP 'three.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>
<%
//设置编码
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
//获取数据
String name=request.getParameter("name");
%>
用户的姓名：<%=name %><br>
用户的账号：<%= request.getParameter("account") %>
</body>
</html>
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