I'm using Java configuration for Spring MVC. I can't get Bean Validation to work. I have a domain class that I've annotated and I want to use @Valid in my Controller. I know that with XML configuration, I would set the validator this way <mvc:annotation-driven validator="validator"/>
How can I do this with Java configuration. I'm not getting any errors, the validation just doesn't work. Thanks in advance!
Here is my set up:
Domain class with the annotations:
public class Product {
@Pattern(regexp="P[1-9]+", message="{Pattern.Product.productId.validation}")
@ProductId
private String productId;
@Size(min=4, max=50, message="{Size.Product.name.validation}")
private String name;
@Min(value=0, message="Min.Product.unitPrice.validation}")
@Digits(integer=8, fraction=2, message="{Digits.Product.unitPrice.validation}")
@NotNull(message= "{NotNull.Product.unitPrice.validation}")
private BigDecimal unitPrice;
private String description;
private String manufacturer;
private String category;
private long unitsInStock;
Here is my Controller using @Valid:
@Controller
@RequestMapping("/products")
public class ProductController {
..... (shortened)
@RequestMapping(value = "/add", method = RequestMethod.GET)
public String getAddNewProductForm(@ModelAttribute("newProduct") Product newProduct) {
return "addProduct";
}
@RequestMapping(value = "/add", method = RequestMethod.POST)
public String processAddNewProductForm(@ModelAttribute("newProduct") @Valid Product productToBeAdded, BindingResult result, HttpServletRequest request) {
if(result.hasErrors()) {
return "addProduct";
}
String[] suppressedFields = result.getSuppressedFields();
if (suppressedFields.length > 0) {
throw new RuntimeException("Attempting to bind disallowed fields: " + StringUtils.arrayToCommaDelimitedString(suppressedFields));
}
MultipartFile productImage = productToBeAdded.getProductImage();
String rootDirectory = request.getSession().getServletContext().getRealPath("/");
if (productImage!=null && !productImage.isEmpty()) {
try {
productImage.transferTo(new File(rootDirectory+"resources\\images\\"+productToBeAdded.getProductId() + ".png"));
} catch (Exception e) {
throw new RuntimeException("Product Image saving failed", e);
}
}
productService.addProduct(productToBeAdded);
return "redirect:/products";
}
Here is my Config class with @EnableWebMVC: (***Updated to get validator***)
@SuppressWarnings("deprecation")
@Configuration
@ComponentScan(basePackages = {"com.nam.webstore"})
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {
..... (shortened)
@Bean(name = "validator")
public LocalValidatorFactoryBean localValidatorFactoryBean() {
LocalValidatorFactoryBean lvfb = new LocalValidatorFactoryBean();
lvfb.setValidationMessageSource(resourceBundleMessageSource());
return lvfb;
}
(***** Updated *****)
@Override
public Validator getValidator() {
return localValidatorFactoryBean();
}
}
Here is the jsp with the error tags:
..... (shortened)
<section class="container">
<form:form modelAttribute="newProduct" class="form-horizontal" enctype="multipart/form-data">
<fieldset>
<legend>Add new product</legend>
<form:errors path="*" cssClass="alert alert-danger" element="div"/>
<div class="form-group">
<label class="control-label col-lg-2 col-lg-2" for="productId"><spring:message code="addProduct.form.productId.label"/></label>
<div class="col-lg-10">
<form:input id="productId" path="productId" type="text" class="form:input-large"/>
<form:errors path="productId" cssClass="text-danger"/>
</div>
</div>
<div class="form-group">
<label class="control-label col-lg-2" for="name"><spring:message code="addProduct.form.name.label"/></label>
<div class="col-lg-10">
<form:input id="name" path="name" type="text" class="form:input-large"/>
<form:errors path="name" cssClass="text-danger"/>
</div>
</div>
<div class="form-group">
<label class="control-label col-lg-2" for="unitPrice"><spring:message code="addProduct.form.unitPrice.label"/></label>
<div class="col-lg-10">
<div class="form:input-prepend">
<form:input id="unitPrice" path="unitPrice" type="text" class="form:input-large"/>
<form:errors path="unitPrice" cssClass="text-danger"/>
</div>
</div>
</div>
<div class="form-group">
<label class="control-label col-lg-2" for="description"><spring:message code="addProduct.form.description.label"/></label>
<div class="col-lg-10">
<form:textarea id="description" path="description" rows = "2"/>
</div>
</div>
Updated After setting the Logger to DEBUG, this is what I'm seeing in the console. I can see that it's firing off the validation, but I don't know why it's saying I'm returning null to the DispatcherServlet? I'm returning the view name.
Field error in object 'newProduct' on field 'unitPrice': rejected value [null]; codes [NotNull.newProduct.unitPrice,NotNull.unitPrice,NotNull.java.math.BigDecimal,NotNull]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [newProduct.unitPrice,unitPrice]; arguments []; default message [unitPrice]]; default message [Unit price is Invalid. It cannot be empty.] Field error in object 'newProduct' on field 'productId': rejected value []; codes [Pattern.newProduct.productId,Pattern.productId,Pattern.java.lang.String,Pattern]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [newProduct.productId,productId]; arguments []; default message [productId],[Ljavax.validation.constraints.Pattern$Flag;@3641ef8a,P[1-9]+]; default message [Invalid product ID. It should start with character P followed by number.] Field error in object 'newProduct' on field 'name': rejected value []; codes [Size.newProduct.name,Size.name,Size.java.lang.String,Size]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [newProduct.name,name]; arguments []; default message [name],50,4]; default message [Invalid product name. It should be minimum 4 characters to maximum 50 characters long.] 2014-07-25 15:03:36 DEBUG ResponseStatusExceptionResolver:134 - Resolving exception from handler [public java.lang.String com.nam.webstore.controller.ProductController.processAddNewProductForm(com.nam.webstore.domain.Product,org.springframework.ui.ModelMap,org.springframework.validation.BindingResult,javax.servlet.http.HttpServletRequest)]: org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 3 errors Field error in object 'newProduct' on field 'unitPrice': rejected value [null]; codes [NotNull.newProduct.unitPrice,NotNull.unitPrice,NotNull.java.math.BigDecimal,NotNull]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [newProduct.unitPrice,unitPrice]; arguments []; default message [unitPrice]]; default message [Unit price is Invalid. It cannot be empty.] Field error in object 'newProduct' on field 'productId': rejected value []; codes [Pattern.newProduct.productId,Pattern.productId,Pattern.java.lang.String,Pattern]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [newProduct.productId,productId]; arguments []; default message [productId],[Ljavax.validation.constraints.Pattern$Flag;@3641ef8a,P[1-9]+]; default message [Invalid product ID. It should start with character P followed by number.] Field error in object 'newProduct' on field 'name': rejected value []; codes [Size.newProduct.name,Size.name,Size.java.lang.String,Size]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [newProduct.name,name]; arguments []; default message [name],50,4]; default message [Invalid product name. It should be minimum 4 characters to maximum 50 characters long.] 2014-07-25 15:03:36 DEBUG DefaultHandlerExceptionResolver:134 - Resolving exception from handler [public java.lang.String com.nam.webstore.controller.ProductController.processAddNewProductForm(com.nam.webstore.domain.Product,org.springframework.ui.ModelMap,org.springframework.validation.BindingResult,javax.servlet.http.HttpServletRequest)]: org.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 3 errors Field error in object 'newProduct' on field 'unitPrice': rejected value [null]; codes [NotNull.newProduct.unitPrice,NotNull.unitPrice,NotNull.java.math.BigDecimal,NotNull]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [newProduct.unitPrice,unitPrice]; arguments []; default message [unitPrice]]; default message [Unit price is Invalid. It cannot be empty.] Field error in object 'newProduct' on field 'productId': rejected value []; codes [Pattern.newProduct.productId,Pattern.productId,Pattern.java.lang.String,Pattern]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [newProduct.productId,productId]; arguments []; default message [productId],[Ljavax.validation.constraints.Pattern$Flag;@3641ef8a,P[1-9]+]; default message [Invalid product ID. It should start with character P followed by number.] Field error in object 'newProduct' on field 'name': rejected value []; codes [Size.newProduct.name,Size.name,Size.java.lang.String,Size]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [newProduct.name,name]; arguments []; default message [name],50,4]; default message [Invalid product name. It should be minimum 4 characters to maximum 50 characters long.] 2014-07-25 15:03:36 DEBUG DispatcherServlet:1012 - Null ModelAndView returned to DispatcherServlet with name 'DispatcherServlet': assuming HandlerAdapter completed request handling 2014-07-25 15:03:36 DEBUG DispatcherServlet:991 - Successfully completed request
