在从jsp重定向上调用Spring控制器方法

Question

So let assume I have 2 jsp files: login.jsp and menu.jsp

Also I have two methods in the controller class:

@RequestMapping("/login")
    public void login() {
        return "login";
    }


@RequestMapping("/menu")
    public void menu() {
        List<User> allUsers = userJpaRepository.findAll();
    return new ModelAndView("allUsers", "users", allUsers);
    }

In login.jsp

<%@page import="com.markovski.database.DataBase"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>

<form method="get" action="menu.jsp">
<% 
    String accname = request.getParameter("uname");
    String password = request.getParameter("pass");

    if(DataBase.checkForUserCreditinals(accname, password)){
        session.setAttribute("userId", 2);

        response.sendRedirect("menu.jsp");
    } else {
        //out.println("Error");
    }

%>
</form>

So what do I want ? When I log in I would like to be redirected to menu page, but it does not invoke menu(), which will pass all users to my menu.jsp. So it is just opening an empty /menu page. How can I redirect to menu.jsp AND INVOKE the controller method, which will give me the data that I want to display ?

Answer 1

As you are coding in Spring, I think we can stick to it than mixing jsp and Spring style. Why don't you write a mapping for menu url and return menu.jsp from it. Also you can keep your database code as well there ( though not a good practice). You may also need to handle the login submissions as well.