第七周作业
1.教材P78-79 例4-9
Agoni 18:42:50
<%@ 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 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="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>
Agoni 18:43:00
<%@ 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 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
Agoni 18:44:20
<%@ 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>
Agoni 18:44:31
<%@ 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）
Agoni 18:47:08
<%@ 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>
<script type="text/javascript">
function validate() {
if (loginForm.uname.value == "") {
alert("账号不能为空!");
return;
}
if (loginForm.upwd.value == "") {
alert("密码不能为空!");
return;
}
loginForm.submit();
}
</script>
<form name="loginForm" action="z.jsp" method="post">
用户名:<input type="text" name="uname"><br> 密码: <input
type="password" name="upwd"> <br>
<input type="button" value="登录" onClick="validate()">
</form>
</body>
</html>
Agoni 18:47:21
<%@ 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(upwd))
request.getRequestDispatcher("scend.jsp").forward(request,response);
else
request.getRequestDispatcher("frist.jsp").forward(request,response);
%>
</body>
</html>
Agoni 18:47:32
<%@ 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>登录失败！</p>
</body>
</html>
Agoni 18:47:42
<%@ 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>
<p>登录成功！</p>
</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"%>
<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="index.jsp" name="loginForm" method="post">
<p style="font-family: 宋体;font-size: 18; color:blue">
输入账号：<input name="account" type="text" /><br>
输入密码:<input name="password" type="password" /><br>
是否注册会员：
<input type="checkbox" name="yes" value="1"/>注册
<input type="checkbox" name="yes" value="2"/>不注册<br>
<input type="button" value="登录"onClick="validate()">
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
</head>
<body>
<h1>登录成功</h1>
<%
String []yes=request.getParameterValues("yes");
for(int i=0;i<yes.length;i++){
if(yes[i].equals("1")){
out.print("注册为会员");
}
}
%>
</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。
Agoni 18:50:12
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<body>
<form action="huanying.jsp" method="post" name="form">
输入任意整数N：<input type="text" name="name" >
<input type="submit" value="提交">
</form>
</body>
</html>
Agoni 18:50:20
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<body>
<%
request.setCharacterEncoding("utf-8");
String name=request.getParameter("name");
int n=Integer.parseInt(name);
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。
