I have Spring boot application and I can't show error message to user. Object without that data is not saved in the database and that is OK. But showing error message is the problem. When I debug i get errors size = 0
This is my model:
@Size(min = 1, message = "Address is invalid.")
@NotNull
@Column
private String address;
Controller
@RequestMapping(value = "/create", method = RequestMethod.POST,
consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
public String createNewBusiness(@Valid @ModelAttribute("business")
Business business, BindingResult result, Model model) {
model.addAttribute("userEmail", getUserEmail());
logger.info("/business/create:" + business.toString());
LocationResponse locationResponse = geoService.getCoords(business.getAddress());
if(locationResponse.getStatus().equals("OK")) {
business.setLatitude(locationResponse.getResults().get(0).getGeometry().getLocation().getLat());
business.setLongitude(locationResponse.getResults().get(0).getGeometry().getLocation().getLng());
business.setUserId(getUserId());
businessService.createNew(business);
model.addAttribute("business", business);
}else{
business.setAddress(null);
model.addAttribute("business", business);
}
if(result.hasErrors()){
List<FieldError> errors = result.getFieldErrors();
for (FieldError error : errors ) {
System.out.println (error.getObjectName() + " - " + error.getDefaultMessage());
}
return "newBusiness";
}
return "business";
}
And Thymeleaf
<div class="input-field left m-0 w-100">
<i class="fa fa-map-marker prefix grey-text" aria-hidden="true"></i>
<input placeholder="Address" id="inputAddress" name="address" type="text" class="validate my-0" th:required="true">
<label th:errors="*{address}" th:if="${#fields.hasErrors('address')}" >Invalid address </label>
</div>
If you want to throw a custom validation error (for example, if you're validating a field by something other than the annotation validators in your model), you can do that through BindingResult#rejectValue() method.
For example:
if (business.getEmail() == null || business.getEmail().length() == 0) {
result.rejectValue("email", "email.missing", "Must enter email");
}
Obviously email field is just an example, as you would need that email field on your thymeleaf resource as well as the error field.