Failed to convert value of type 'java.lang.String' to required type 'java.lang.Long';

Question

I make a method of search using named query

@Query(value = "SELECT * FROM working_day w INNER JOIN \r\n"
            + "employees_days e ON \r\n"
            + "w.day_id = e.day_id\r\n"
            + "WHERE w.date LIKE %:date% AND e.employee_id LIKE %:employee_id%", nativeQuery = true)
    List<WorkingDay> searchDaysForMonth(@Param("date") String date, @Param("employee_id") Long employeeId);

Service:

public List<WorkingDay> countDays(String date, Long employeeId) {
    return workingDayRepository.searchDaysForMonth(date, employeeId);
}

Controller method:

@RequestMapping(value = "/employees")

@GetMapping(value = "/employees/days_in_month")
    public ModelAndView getDaysForEmployee(@RequestParam(value = "date", required = false) String date,
                                           @RequestParam(value = "employee_id") Long employeeId) {

        ModelAndView modelAndView = new ModelAndView();
        modelAndView.setViewName("days_employees");

        var daysForEmployee = employeeService.countDays(date, employeeId);
        modelAndView.addObject("days_employees", daysForEmployee);

        Employee employee = employeeService.getById(employeeId);
        modelAndView.addObject("employee", employee);

        var totalDays = daysForEmployee.size();
        modelAndView.addObject("totalDays", totalDays);

        return modelAndView;
    }

When I enter the following mapping value

http://localhost:8080/employees/days_in_month?date=2023-01&employee_id=2

I get MethodArgumentTypeMismatchException. Failed to convert value of type 'java.lang.String' to required type 'java.lang.Long';

How to solve this?