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POSpring : How to Validate Beans inside ArrayList
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  1. POSpring : How to Validate Beans inside ArrayList
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    copied!<p>I have the following mapping handler:</p> <pre><code>@Controller @RequestMapping("/product") public class ProductController { @RequestMapping(value = "update", method = RequestMethod.POST) @ResponseBody public Map&lt;String, ?&gt; update(@Valid @RequestBody ListOfProduct productList) { if (productDao.saveOrUpdateAll(productList)) { return jsonUtils.statusMessage(true, "Updated successfully."); } return jsonUtils.statusMessage(false, "Failed."); } @ExceptionHandler @ResponseStatus(value = HttpStatus.BAD_REQUEST) @ResponseBody public String handleMethodArgumentNotValidException(MethodArgumentNotValidException error) { return "Bad request: " + error.getMessage(); } public static class ListOfProduct extends ArrayList&lt;Product&gt; { private static final long serialVersionUID = 1L; public ListOfProduct() { super(); } } } @Entity public class Product implements Serializable { private static final long serialVersionUID = 1L; @Min(1) private int id; @NotNull @Size(min = 5) private String name; public product() { } // getters and setters } </code></pre> <p>I'm trying to validate this JSON:</p> <pre><code>[{"id":6, "name":""}] </code></pre> <p>It is supposed to be a violation for constraint @Size of "name" property.</p> <p>And it is supposed to be handled by <strong>handleMethodArgumentNotValidException()</strong> inside the controller.</p> <p>But instead, I got this exception:</p> <pre><code>Jan 21, 2012 10:25:00 AM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet [appServlet] in context with path [/WebTest] threw exception [Request processing failed; nested exception is javax.validation.ConstraintViolationException: Validation failed for classes [com.tes.web.entity.Product] during update time for groups [javax.validation.groups.Default, ] List of constraint violations:[ ConstraintViolationImpl{interpolatedMessage='size must be between 5 and 2147483647', propertyPath=name, rootBeanClass=class com.tes.web.entity.Product, messageTemplate='{javax.validation.constraints.Size.message}'} ]] with root cause javax.validation.ConstraintViolationException: Validation failed for classes [com.tes.web.entity.Product] during update time for groups [javax.validation.groups.Default, ] List of constraint violations:[ ConstraintViolationImpl{interpolatedMessage='size must be between 5 and 2147483647', propertyPath=name, rootBeanClass=class com.tes.web.entity.Product, messageTemplate='{javax.validation.constraints.Size.message}'} ] </code></pre> <p>Any suggestion how to solve this?</p> <p>Thank you very much.</p>
 

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