springboot跨域访问

写一个WebMvc配置类重写addCorsMappings即可

 @Configuration
 public class MyMvcConfig implements WebMvcConfigurer {
     @Override
     public void addCorsMappings(CorsRegistry registry) {
         registry.addMapping("/**")
                 .allowedOrigins("*")
                 .allowedMethods("GET", "HEAD", "POST", "PUT", "DELETE", "OPTIONS")
                 .allowCredentials(true)
                 .maxAge(3600)
                 .allowedHeaders("*");

     }
 }