Controller Questions

Learn how to enable PDF file downloads in a Spring application using Freemarker and iText. Stepbystep guide with code snippets.

Learn how to specify the init method for a Spring controller using annotations instead of XML configuration.

Explore the reasons against using Transactional in Spring MVC controllers including technical architectural and performance issues.

Learn how to set the mime type header to applicationjson in Spring MVC controllers using ResponseBody for JSON responses.

Learn how to fix the when requires an argument which has to be a method call on a mock error in Mockito with detailed explanations and solutions.

Learn how to utilize PreAuthorize in Spring Security to secure your controller methods effectively.

Learn how to correctly return an HTML page from a RESTful controller in Spring Boot and troubleshoot common issues.

Discover the causes of Spring Boot 401 Unauthorized errors even without security configuration learn effective solutions to resolve the issue.

Learn how to set up rate limiting in a Spring Boot REST API to limit users to 5 requests per minute and return a 429 status code when exceeded.

Learn how to perform redirects in a Spring MVC Controller using URL parameters for improved routing without modifying the response object.

Learn how to manage multiple submit buttons in a Spring MVC form with practical examples and solutions to common issues.

Learn how to use Valid with validation groups in Java for effective input validation at different levels enhancing your application design.

Learn how to properly use Controller in Spring MVC when implementing an interface in your controller class. Avoid common pitfalls with our expert guide.

Learn how to create multiple JavaFX controllers for different FXML files with stepbystep instructions and code examples.

Learn how to implement nested controllers in JavaFX using FXML includes for modular UI design.

Learn how to effectively add parameters to a Spring application with detailed steps and code examples. Discover common pitfalls and best practices.

Learn how to effectively share a model object between JavaFX controllers for better data handling and UI management.

Learn how to manage status messages in Spring MVC controllers effectively with this detailed guide including tips and code snippets.

Learn how to fix the error regarding an optional long parameter that cannot be translated to a null value in programming contexts. Detailed explanations and solutions included.

Learn how to effectively use PathVariable in Spring Controllers to manage dynamic URL paths in your applications.