JSP 07: 开发注册页面

2022-08-30 20:30:49

示例:

1. index.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
    <a>登录</a>        
    <a href = "register.jsp">注册</a>        
</body>
</html>

2. register.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
    <form action ="register_do.jsp" method ="post">    
    <!-- register.jsp 用来展示注册页面, register_do.jsp 页面用来处理注册请求 -->
        用户名: <input type="text" name="username"/><br/>
        密码: <input type="password" name="password"/><br/>
        年龄: <input type="text" name="age"/><br/>
        性别: 男<input type="radio" name="gender" value="死男人"/>
              女<input type="radio" name="gender" value="臭女人"/><br/>
        <input type = "submit" value="我要注册成为新用户!"/>
    </form>
</body>
</html>

效果:

3.　　创建register_do.jsp 来处理注册请求

<%
　　String username = request.getParameter("username");
　　String password = request.getParameter("password");
　　int age = Integer.parseInt(request.getParameter("age")); 　　// request.getParameter("age") 返回的是string类型, 需要转化为int类型
　　String gender = request.getParameter("gender");
%>

4.　　在web02/Java_Resources/src 文档下, 创建操作数据的类