ajax not calling to spring boot controller
When your AJAX request is not calling a Spring Boot controller, there are several common reasons and troubleshooting steps you can follow to identify and resolve the issue: 1. **URL Mismatch**: Ensure that the URL you are specifying in your AJAX request matches the URL mapping of your Spring Boot controller. Check for any typos or missing path segments. 2. **HTTP Method Mismatch**: Verify that the HTTP method (GET, POST, PUT, etc.) used in your AJAX request matches the HTTP method expected by your controller method. Spring Boot's `@GetMapping`, `@PostMapping`, etc., annotations define which HTTP methods a method should handle. 3. **Cross-Origin Resource Sharing (CORS)**: If your AJAX request is made from a different domain or port, CORS might be blocking the request. Ensure that your Spring Boot application is configured to allow cross-origin requests, either by configuring CORS in your Spring application or by using a reverse proxy like Nginx or Apache to handle CORS headers. 4.