JSP第七周作业
1.教材P78-79 例4-9
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/NewFile3.jsp" method="post">
商品编号A1001，价格8765<a href = "NewFile3.jsp?name=A1001&price=8765">购买</a><br>
商品编号A1002，价格98.75<a href = "NewFile3.jsp?name=A1002&price=98.75">购买</a><br>
</body>
</html>
2.教材P97 实验2
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>p97实验二计算器</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/NewFile1.jsp" method="POST">
第一个数：<input type = "text" name = "one"/><br>
<select name = "lable"><br>
<option selected = "selected" value = "+">加
<option selected = "selected" value = "-">减
<option selected = "selected" value = "*">乘
<option selected = "selected" value = "/">除
</select><br>
第二个数：<input type = "text" name = "two"/><br>
<input type = "submit" value = "计算并且提交"/>
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”。
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class SomeServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String admin = request.getParameter("admin");
String password = request.getParameter("password");
String lable = request.getParameter("lable");
Integer valueOf = Integer.valueOf(lable);
if(admin.equals(password)||valueOf==1) {
response.sendRedirect(request.getContextPath()+"/NewFile7.jsp");
}
else if(admin.equals(password)) {
response.sendRedirect(request.getContextPath()+"/NewFile5.jsp");
}
else {
response.sendRedirect(request.getContextPath()+"/NewFile6.jsp");
}
}
}
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/someServlet" method="post">
账号：<input type = "text" name = "admin" onclick = "window.alert('账号不得为空有')"/><br>
密码：<input type = "text" name = "password" onclick = "window.alert('密码不得为空')"/><br>
是否注册为会员：<br>
<select name = "lable"><br>
<option selected = "selected" value = "1">是
<option selected = "selected" value = "2">否
</select><br>
<input type = "submit" value = "登录"/>
</form>
</body>
</html>
5.在页面1的表单内输人一个数字N，提交，能够在另一个页面打印N个“欢迎”字符串。
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/NewFile9.jsp" method="post">
账号：<input type = "text" name = "index" /><br>
<input type = "submit" value = "点击"/>
</form>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
String indexStr = request.getParameter("index");
Integer index = Integer.valueOf(indexStr);
for(int i = 1;i<=index;i++) {
out.print("你好");
}
%>
</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" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%request.setCharacterEncoding("UTF-8");
String name = request.getParameter("name");
request.setAttribute("name", name);
%>
输入信息为：name=${param.name}
</body>
</html>
<form action="${pageContext.request.contextPath}/NewFile5.jsp" method="post">
账号：<input type = "text" name = "admin" /><br>
密码：<input type = "text" name = "password" /><br>
<input type = "submit" value = "登录"/>
</form>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/NewFile6.jsp" method="post">
姓名：<input type = "text" name = "name"/><br>
<input type = "submit" value = "登录"/>
</form>
</body>
</html>
