4、HTTPServletRequest
Servlet、用HTTPServletRequest接受并处理
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
req.setCharacterEncoding("utf-8");
resp.setCharacterEncoding("utf-8");
String username = req.getParameter("username");
String password = req.getParameter("password");
String[]hobbies = req.getParameterValues("hobbies");
System.out.println(username+":"+password);
System.out.println(Arrays.toString(hobbies));
//resp.sendRedirect("success.jsp");
req.getRequestDispatcher("success.jsp").forward(req, resp);
}
jsp、主页
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<body>
<h1>登录</h1>
<div>
<form action="${pageContext.request.contextPath}/login" method="post">
用户名：<input type="text" name="username"><br>
密 码：<input type="password" name="password"><br>
爱好：<input type="checkbox" name="hobbies" value="代码">代码
<input type="checkbox" name="hobbies" value="vtb">vtb
<input type="checkbox" name="hobbies" value="游戏">游戏
<input type="checkbox" name="hobbies" value="音乐">音乐
<input type="checkbox" name="hobbies" value="电影">电影
<input type="checkbox" name="hobbies" value="运动">运动 <br>
<input type="submit">
</form>
</div>
</body>
</html>
jsp、成功
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>成功</title>
</head>
<body>
<h1>登录成功</h1>
</body>
</html>
