How to resolve the issue when global exception handling in Spring Boot is not working properly?

If the global exception handling of Spring Boot is not working, you can resolve it by following these steps:

1. Make sure you have properly configured a global exception handler. In Spring Boot, you can use the @ControllerAdvice annotation to define a global exception handler. Ensure that this annotation is correctly placed on a class and that the class is scanned by Spring Boot.
2. Make sure that the global exception handler method is annotated with @ExceptionHandler and that the method’s parameter includes a parameter of type Exception. For example:

@ControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(Exception.class)
    public ResponseEntity<String> handleException(Exception e) {
        // 处理异常逻辑
        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("Internal Server Error");
    }
}

1. Make sure the global exception handler is properly registered in the Spring Boot application. In Spring Boot, you can enable the exception handler by adding the @EnableWebMvc annotation to the main application class. For example:

@SpringBootApplication
@EnableWebMvc
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

1. If you are using Spring Boot’s auto-configuration feature, make sure that the class for the global exception handler is properly placed within the scanning path of the Spring Boot application.
2. If you are using alternative exception handling methods (such as a class annotated with @ControllerAdvice), make sure that no other exception handlers are overriding the global exception handler.

If all the above steps have been checked and the problem still cannot be resolved, it is advised to examine the log files for more error information. Additionally, manually capturing the exception can be attempted to analyze the specific details of the exception, in order to determine why the global exception handler was not triggered.