SpringBoot异常处理器的使用与添加员工功能实现流程介绍

@Slf4j
@WEBFilter(filterName = "loginFilterCheck", urlPatterns = "
@ControllerAdvice(annotations = {RestController.class, Controller.class}) //拦截有指定注解类的Controller
@Slf4j
@ResponseBody
public class GlobalExceptionHandler {
    
    @ExceptionHandler({sqlIntegrityConstraintViolationException.class})
    public R<String>  excpHandler(SQLIntegrityConstraintViolationException exception) {//捕获到的异常被传到方法的形参里
       log.info("异常信息："+exception.getMessage());
        //细化添加失败后的返回信息
        if (exception.getMessage().contains("Duplicate entry")){
            String[] s = exception.getMessage().split(" ");
            String msg=s[2]+"已存在!";
            return R.error(msg);
        }
        return R.error("发生异常！添加失败！");
    }
}