index.jsp
<body>
${message }
<form action="login" method="post">
用户名:<input type="text" name="username"/>
密码:<input type="password" name="password"/>
<input type="submit" value="提交"/>
</form>
</body>
LoginServlet
protected void service(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String username = request.getParameter("username");
String password = request.getParameter("password");
if (username.equals("aaa") && password.equals("aaa")) {
request.setAttribute("message", "成功");
request.getRequestDispatcher("index.jsp").forward(request, response);
} else {
request.setAttribute("message", "失败");
request.getRequestDispatcher("index.jsp").forward(request, response);
}
}
追问谢谢你的回答~!