Spring MVC

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Spring ProblemDetail and ErrorResponse

Starting since Spring 6 and Spring Boot 3, the Spring Framework supports the “Problem Details for HTTP APIs” specification, RFC 7807. This Spring tutorial will guide you through this new enhancement in detail. 1. Problem Details Specification [RFC 7807] This RFC defines simple JSON and XML document formats that can …

Spring MVC

Spring WebMVC (or Spring MVC) contains Spring’s model-view-controller (MVC) and REST Web Services implementation for web applications.

Spring WebMVC Optional @PathVariable

Learn to have optional @PathVariable valuein spring mvc application when required attribute to set to false or expect variable’s value to null.

Spring @GetMapping and @PostMapping

Learn to create Spring MVC controllers and map requests with request mapping annotations e.g. @RequestMapping, @GetMapping, @PostMapping, @PutMapping, @DeleteMapping and @PatchMapping.

Spring MVC Populate and Validate Dropdown Example

If you are working on any customer facing web application which is developed using Spring MVC, then your will probably need to use dropdown box as well somewhere in application UI. This tutorial will help you in displaying a pre-populated dropdown and then validating whether user selected any value while …

Spring Bean Validation – JSR-303 Annotations

JSR-303 bean validation is an specification whose objective is to standardize the validation of Java beans through annotations. The objective of the JSR-303 standard is to use annotations directly in a Java bean class. JSR 303 specification allows the validation rules to be specified directly into the fields inside any …

Spring MVC Custom Validator Example

In spring mvc form submit tutorial, we learned about displaying displaying a form and submitting form data, including validating inputs using BindingResult.rejectValue(). In this example, we will learn to build a more robust validator for EmployeeVO model object. This validator is custom implementation of Validator interface. In this example, I …

Spring SimpleMappingExceptionResolver Example

In some badly coded applications, when an unknown exception occurs the application server usually displays the evil exception stack trace to the user in the webpage itself. In this case, users have nothing to do with this stack trace and complain that your application is not user-friendly. Moreover, it can …

Spring MVC ResourceBundleViewResolver Configuration Example

In previous examples, we learned about XmlViewResolver and InternalResourceViewResolver view templates. In this post, we will learn about ResourceBundleViewResolver templates. ResourceBundleViewResolver loads view beans from a resource bundle in the classpath root. Note that ResourceBundleViewResolver can also take advantage of the resource bundle capability to load view beans from different …

Spring MVC Internationalization (i18n): Step by Step Guide

Internationalization (i18n) is the process of designing a software application so that it can potentially be adapted to various languages and regions without engineering changes. Localization is the process of adapting internationalized software for a specific region or language by adding locale-specific components and translating text. Spring framework is shipped …

Spring MessageSourceAware Example

If you want to access i18n resources bundles for different locales in your Spring application, then that a class must implement MessageSourceAware interface. After implementing MessageSourceAware interface, spring context will automatically inject the MessageSource bean’s reference into the class via ‘setMessageSource(MessageSource messageSource)‘ setter method which your class needs to implement. …

Spring HandlerInterceptor Example

Spring HandlerInterceptor allows creating interceptors in Spring or Boot applications to handle requests pre- and post-controller methods.

Spring context:annotation-config vs context:component-scan

Learn the main differences between tags <context:annotation-config> and <context:component-scan> in Spring MVC applications so that when we use them in the future, we will know, what exactly we are doing. 1. The Differences between <context:annotation-config> vs <context:component-scan> The first big difference between both tags is that <context:annotation-config> is used to …

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