jsp第7次作业
1.教材P78-79 例4-9
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!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="shopping.jsp?id=A1001&price=8765">购买</a><br>
商品编号A1002，价格<%=price %>
<a href="shopping.jsp?id=A1002&price=<%=price %>">购买</a>
</p>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!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 %>
</b>
</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>
<head>
</head>
<body>
<form action="yunsuan.jsp" method=post name=form>
输入运算数，选择运算符：<br>
<input type=text name="numberOne" size=6 />
<select name="op">
<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"/>
</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 numberOne=request.getParameter("numberOne");
String numberTwo=request.getParameter("numberTwo");
String op=request.getParameter("op");
if(numberOne==null||numberOne.length()==0){
response.sendRedirect("jia.jsp");
return;
}
else if(numberTwo==null||numberTwo.length()==0){
response.sendRedirect("jia.jsp");
return;
}
try{
double a=Double.parseDouble(numberOne);
double b=Double.parseDouble(numberTwo);
double r=0;
if(op.equals("+"))
r=a+b;
else if(op.equals("-"))
r=a-b;
else if(op.equals("*"))
r=a*b;
else if(op.equals("/"))
r=a/b;
out.print(a+" "+op+" "+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>
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<%@ 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> |
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 >
<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"%>
<%
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 'login.jsp' starting page</title>
</head>
<body>
<form action="second.jsp" method="post">
<p style="font-family:宋体;font-size:18;color:black">
请输入数字：<input type="text" name="number" size=6><br> <br>
<br> <input type="submit" name="submit" value="提交">
</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 'index.jsp' starting page</title>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String number = request.getParameter("number");
int a = Integer.parseInt(number);
for (int i = 0; i < a; 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。
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<script>
function lg() {
if (form.user.value == "") {
alert("用户名不能为空!");
form.user.focus();
return;
}
if (form.password.value == "") {
alert("密码不能为空!");
form.password.focus();
return;
}
}
</script>
<form action="index2.jsp" method="post" name="form">
账号：<input type="text" name="user"/><br>
密码：<input type="password" name="password"/><br>
<input type="submit" value="登录"/>
</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 'index.jsp' starting page</title>
</head>
<body>
<script>
function lg() {
if (form.user.value == "") {
alert("用户名不能为空!");
form.user.focus();
return;
}
if (form.password.value == "") {
alert("密码不能为空!");
form.password.focus();
return;
}
}
</script>
<form action="index2.jsp" method="post" name="form">
账号：<input type="text" name="user"/><br>
密码：<input type="password" name="password"/><br>
<input type="submit" value="登录"/>
</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 'ok.jsp' starting page</title>
</head>
<body>
<%
request.setCharacterEncoding("UTF-8");
String user=request.getParameter("user");
%>
<h1> 登陆成功！</h1>
<form action="index3.jsp" method="post" name="form">
用户姓名：<input type="text" name="username"/><br>
<input type="submit" value="提交"/><br>
<input type="hidden" name="user" value="<%= user %>"/>
</form>
</body>
</html>
复制代码
复制代码
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'no.jsp' starting page</title>
</head>
<body>
<%
request.setCharacterEncoding("UTF-8");
%>
<h1> 登陆失败！</h1>
</body>
</html>
复制代码
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index3.jsp' starting page</title>
</head>
<body>
<%
request.setCharacterEncoding("UTF-8");
String user=request.getParameter("user");
String username=request.getParameter("username");
out.print("账号："+user+"</br>"+"用户姓名:"+"   "+username);
%>
</body>
</html>
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