Mot-so-annotation-trong-spring_009.java

// @org.springframework.web.bind.annotation.RequestParam
@Controller
@RequestMapping("/user")
public class LoginController {
 
  @RequestMapping("/login")
  public String listCompanies(@RequestParam String username, @RequestParam String password) {
    if(username.equals("admin") && password.equals("mypass")){
       return "welcome";
    } else {
       return "login?login=fail";
    }
  }
...
}