常用工具类——跨域配置类

@Configuration
public class CorsConfig implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
            .allowedOrigins("*")
            .allowCredentials(true)
            .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
            .maxAge(3600);
    }
}