第七周作业
1.教材P78-79 例4-9
<html>
<head>
<base href="<%=basePath%>">
</head>
<body>
<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>
<html>
<head>
<base href="<%=basePath%>">
</head>
<body>
<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"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<body bgcolor=#ffccff>
<form action="jisuan.jsp" method=post name=form>
<p style="font-family:宋体;font-size:18;color:blue">
输入运算数，选择运算符号：<br>
<input type=text name="numberOne" size=6/>
<select name="operator">
<option selected = "value" value="+">加
<option value="-">减
<option value="*">乘
<option value="/">除
</select>
<input type=text name="numberTwo"size=6/>
<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>
<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"%>
<html>
<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="zhanghao.jsp" name="loginForm" method="post">
账号：<input type="text" name="account" placeholder="请输入账号"/><br>
密码:<input type="password" name="password" placeholder="请输入密码"/><br>
<input type="button" value="登录"onClick="validate()">
</form>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<body>
<%
String account=request.getParameter("account");
String password=request.getParameter("password");
if(account.equals(password)){
request.getRequestDispatcher("ok.jsp").forward(request,response);
}
else{
response.sendRedirect("no.jsp");
}
%>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
%>
<html>
<body>
登陆成功！
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
%>
<html>
<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>
请输入一个数字 :
<form action="ok.jsp" method=post>
<input type="text" name="shu" value=""> <input type="submit"
value="确定">
</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>
<%
request.setCharacterEncoding("utf-8");
String shu=request.getParameter("shu");
double j=Double.parseDouble(shu);
for(int i=1;i<j;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.getRequestDispacher.....forward
<%@ 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>
<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>
<%
request.setCharacterEncoding("utf-8");
String id = request.getParameter("id");
%>
<form action="zuihou.jsp" method="post">
请输入姓名: <input type="text" name="xingming" value=""> <input
type="submit" value="确定"> <input type="hidden" name="id"
value="<%=id%>" />
</form>
</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 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>
<%
request.setCharacterEncoding("utf-8");
String id = request.getParameter("id");
String name = request.getParameter("xingming");
out.print("用户姓名：" + name + "<br>" + "用户账号：" + zh);
%>
</body>
</html>
