how to show Run time error message or sql error message in the same jsp in spring mvc 3.0

Question

When any exception occured in catch block then how can we show the error message in the same jsp i.e employee.jsp and how to jsp should look like?
am getting this error message in the console;what is the meaning of this error?
ERROR: org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver - Failed to invoke @ExceptionHandler method: public org.springframework.web.servlet.ModelAndView com.kesava.tutorial.controller.HomeController.addEmployee(com.kesava.tutorial.dto.EmployeeDTO,org.springframework.validation.BindingResult) throws com.kesava.tutorial.util.SpringUtilException
java.lang.IllegalStateException: No suitable resolver for argument [0] [type=com.kesava.tutorial.dto.EmployeeDTO]
@RequestMapping(value = "/addEmployee", method = RequestMethod.POST)
    @ExceptionHandler({ SpringUtilException.class })
    public ModelAndView addEmployee(@Valid EmployeeDTO employeeDTO,
            BindingResult result) throws SpringUtilException {
        ModelAndView mav = new ModelAndView("employee");
        if (result.hasErrors()) {
            List employees = employeeDao.getAllEmployees();
            return new ModelAndView("employee", "employeeList", employees);
        } else {
            BeanUtils.copyProperties(employeeDTO, employees);
            System.out.println("addEmployee employees! " + employees);
            try {
                employeeDao.persist(employees);
            } catch (EntityExistsException e) {
                throw new SpringUtilException(e, "Employee Duplicate");
            } catch (Exception ex) {
                throw new SpringUtilException(ex, "Failed to add Employee");
            }
            // after inserting show the employees
            List employees1 = employeeDao.getAllEmployees();


            mav.addObject("isDataSaved" , "Data saved Successfully");
            mav.addObject("employeeList" , employees1);

            return mav;

        }
        }

Ivaylo Kovatchev Ivaylo Kovatchev · Accepted Answer · 2012-06-19T13:24:09

If you want to see the error within the JSP output, do not use System.out.println. Instead, add the exception stack trace to a model object you print out in your JSP.

Something like:

try { 
   employeeDao.persist(employees); 
} 
catch (EntityExistsException e) { 
   model.addAttribute("error", e.getMessage()); 
}

That way you can see the exception in the JSP, and print it. You can access it by the attribute key, like this: ${error}

how to show Run time error message or sql error message in the same jsp in spring mvc 3.0

2 Answers