springboot web跨域访问问题解决–addCorsMappings和CorsFilter
@Configuration public class CorsConfig extends WebMvcConfigurerAdapter { @Override public void addCorsMappings(CorsRegistry registry) { registry.addMapping("/**") .allowedOrigins("*") .allowCredentials(true) .allowedMethods("GET", "POST", "DELETE", "PUT") .maxAge(3600); } private CorsConfiguration addcorsConfig() { CorsConfiguration corsConfiguration = new CorsConfiguration(); List<String> list = new ArrayList<>(); list.add("*"); corsConfiguration.setAllowedOrigins(list); /* // 请求常用的三种配置，*代表允许所有，当时你也可以自定义属性（比如header只能带什么，只能是post方式等等） */ corsConfiguration.addAllowedOrigin("*"); corsConfiguration.addAllowedHeader("*"); corsConfiguration.addAllowedMethod("*"); return corsConfiguration; } @Bean public CorsFilter corsFilter() { UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(); source.registerCorsConfiguration("/**", addcorsConfig()); return new CorsFilter(source); } }