<%@ page import="java.util.*,login.*" %>
Login
<%
String username = request.getParameter("username");
String password = request.getParameter("password");
LoginManager loginMgr = LoginManager.getInstance();
int result = loginMgr.validate(username, password);
if (result == LoginManager.LOGIN_SUCCESSFUL) {
%>
Login successful. Hello <%=username%>!
<%
} else {
%>
Login fail. Sorry, <%=loginMgr.getMessage(result)%>.
<%
}
%>