SpringBoot解決跨域之CorsRegistry

@Configuration
public class WebConfig implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/admin/**")
                .allowedOrigins("*")
                .allowedMethods("GET","POST","DELETE")
                .allowedHeaders("*")
                .exposedHeaders("Access-Control-Allow-Origin")
                .allowCredentials(true);

    }