How to set up CORS in Springboot?

Question

Recently I decided to try developing in java with Spring boot. I’m not very experienced in this framework. I tried to make a complete application, with back-end with this technology and front-end with Vue using Axios to perform requests.

I did the back-end using Postman, but I felt the need to make requests in the development of the front. I tried to perform CORS configuration using That one and That one tutorials for configuration, but regardless of the form, my requests are being blocked. I even set up as follows:

@Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurer() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/**")
                        .allowedOrigins("*")
                        .allowedMethods("*")
                        .allowedHeaders("*")
                        .allowCredentials(true);
            }
        };
    }

But even so my requests continue to be blocked by CORS.

My Axios is configured as follows:

export default axios.create({
    baseURL:"localhost:8081",
    withCredentials:true
})

My Back-end is running at door 8081, while my front is at door 8080. I literally don’t know what else to do.