125. Java Bean Validation - dkkahm/study-springfamework5 GitHub Wiki

Annotations

@Null
@NotNull
@AssertTrue
@AssertFalse
@Min
@Max
@DecimalMin
- Value is larger
@DecimalMax
- Value is less than
@Negative
- Value is less than zero. Zero is invalid
@NegativeOrZero
@Positive
@PositiveOrZero
@Size
- check if string or collection is between a min and max
@Digits
- check for integer digits and fraction digits
@Past
@PastOrPresent
@Future
@FutureOrPresent
@Pattern
@NotEmpty
- check if value is null or empty (whitespace characters or empty collection)
@NotBlank
- check string is not null or not whitespace characters
@Email
@ScriptAssert
- Class level annotations, checks class against script
@CreditCartNumber
@Currency
@DurationMax
@DurationMin
@EAN
@ISBN
@Length
@CodePointLength
@LuhnCheck
@Mod10Check
@Mod11Check
@Range
- inclusive
@SafeHtml
@UniqueElements
@Url

Request with Validation

Post

    @PostMapping("recipe")
    public String saveOrUpdate(@Valid @ModelAttribute('recipe') RecipeCommand command, BindingResult bindingResult) {
        if(bindingResult.hasError()) {
            bindingResult.getAllErrors().forEach(objectError -> log.debug(objectError.toString()));
            return RECIPE_RECIPEFORM_URL;
        }

        RecipeCommand savedCommand = recipeService.saveRecipeCommand(command);

        return "redirect:/recipe/" + savedCommand.getId() + "/show";
    }

Test

    @Test
    public void testPostNewRecipeFormValidationFail() throws Exception {
        RecipeCommand command = new RecipeCommand();
        command.setId(2L);
    
        when(recipeService.saveRecipeCommand(any())).thenReturn(command);

        mvcMvc.perform(post("/recipe")
                    .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                    .param("id", "")
                    .param("description", "some string")
                )
                .andExpect(status().isOk())
                .andExpect(model().attributeExists("recipe"))
                .andExpect(view().name("recipe/recipeform"));
    }