第七周作业
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body>
<% double price=98.78; %>
商品编号 A1001，价格8765
<a href="Two.jsp?id=A1001&price=8765">购买</a><br>
商品编号 A1002，价格 <%=price %>
<a href="Two.jsp?id=A1002&price=<%=price %>">购买</a><br>
</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>
<% double price=98.78; %>
商品编号 A1001，价格8765
<a href="Two.jsp?id=A1001&price=8765">购买</a><br>
商品编号 A1002，价格 <%=price %>
<a href="Two.jsp?id=A1002&price=<%=price %>">购买</a><br>
</body>
</html>
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>
<form action="Two.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>
<%@ 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("ccc.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>
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="hhh.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");
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="Two.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="Two.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="Two.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("t.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="n.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("用户名是"+name);
%>
</body>
</html>
