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POValidation messages not picked up from message properties file in Spring
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  1. POValidation messages not picked up from message properties file in Spring
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    copied!<p>I had it working yesterday and then I did something and now I have been trying to fix it for hours and I just can't get it to work anymore.</p> <p>I have a Spring MVC app containing a <code>&lt;form:form&gt;</code> that I want to display custom error messages (<code>&lt;form:errors&gt;</code>) from a .properties file when the user types in wrong information. What 'wrong' is is defined in JSR-303 annotations.</p> <p>Excerpt from the form: </p> <pre><code>&lt;form:form method="post" action="adduserprofile" modelAttribute="bindableUserProfile"&gt; &lt;table&gt; &lt;tr&gt; &lt;td&gt;&lt;form:label path="firstName"&gt;Voornaam&lt;/form:label&gt;&lt;/td&gt; &lt;td&gt; &lt;form:input path="firstName"/&gt; &lt;form:errors path="firstName" /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&lt;form:label path="lastName"&gt;Achternaam&lt;/form:label&gt;&lt;/td&gt; &lt;td&gt; &lt;form:input path="lastName"/&gt; &lt;form:errors path="lastName" /&gt; &lt;/td&gt; &lt;/tr&gt; </code></pre> <p>Excerpt from the BindableUserProfile:</p> <pre><code> @NotNull @Size(min = 3, max = 40, message="{errors.requiredfield}") public String getFirstName() { return firstName; } public void setFirstName(String firstName) { this.firstName = firstName; } @NotNull @Size(min = 3, max = 40, message="errors.requiredfield") public String getLastName() { return lastName; } </code></pre> <p>Excerpt from the controller:</p> <pre><code> @RequestMapping(value = "/edit/{userProfileId}", method = RequestMethod.GET) public String createOrUpdate(@PathVariable Long userProfileId, Model model) { if (model.containsAttribute("bindableUserProfile")) { model.addAttribute("userProfile", model.asMap().get("bindableUserProfile")); } else { UserProfile profile = userProfileService.findById(userProfileId); if (profile != null) { model.addAttribute(new BindableUserProfile(profile)); } else { model.addAttribute(new BindableUserProfile()); } } model.addAttribute("includeFile", "forms/userprofileform.jsp"); return "main"; } @RequestMapping(value = "/adduserprofile", method = RequestMethod.POST) public String addUserProfile(@Valid BindableUserProfile userProfile, BindingResult result, Model model) { if (result.hasErrors()) { return createOrUpdate(null, model); } UserProfile profile = userProfile.asUserProfile(); userProfileService.addUserProfile(profile); return "redirect:/userprofile"; } </code></pre> <p>Excerpt from application-context.xml</p> <pre><code> &lt;bean name="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource"&gt; &lt;property name="basename" value="messages/messages"/&gt; &lt;/bean&gt; &lt;bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"&gt; &lt;property name="validationMessageSource"&gt; &lt;ref bean="messageSource"/&gt; &lt;/property&gt; &lt;/bean&gt; </code></pre> <p>In resources/messages I have two files, messages_en.properties and messages_nl.properties. Both have the same, simple content:</p> <pre><code>errors.requiredfield=This field is required!!! </code></pre> <ul> <li>When I submit the form with an empty first name I can see in the controller method 'addUserProfile()' that errors are indeed found. </li> <li>When I submit the form with an empty first name the message identifier is shown next to the field, that is, the literal text "errors.requiredfield" or "{errors.requiredfield}" in case of the last name.</li> <li>When I change the message attribute value to "Foo" than "Foo" is shown as a the error message. So the error mechanism itself seems to work fine.</li> <li>The messageSource bean from the application-context.xml must be correct, because it says it can't find the properties files when I change the basename.</li> <li>The empty input is not caught by the NotNull annotation. Spring sees empty input as an empty string and not as null.</li> </ul> <p>So, it seems the properties files are found and the validation annotations are properly processed, but Spring doesn't understand it must replace the message keys with messages from the properties files.</p>
 

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