直接在项目中新建config文件夹新建CorsConfig类 并把以下代码复制进去

package 你的包名;

import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.web.cors.CorsConfiguration; import org.springframework.web.cors.UrlBasedCorsConfigurationSource; import org.springframework.web.filter.CorsFilter;

/** * <p>Description：跨域请求配置类</p> * @author：gusong * @date：2019/4/1 19:59 */ @Configuration public class CorsConfig {

/** * <p>Description：配置允许跨域访问</p> * @return：org.springframework.web.cors.CorsConfiguration * @author：gusong * @date：2019/4/1 20:01 */ private CorsConfiguration buildConfig() { CorsConfiguration corsConfiguration = new CorsConfiguration(); corsConfiguration.setAllowCredentials(true); corsConfiguration.addAllowedOrigin("*"); corsConfiguration.addAllowedHeader("*"); corsConfiguration.addAllowedMethod("*"); return corsConfiguration; }

/** * <p>Description：跨域过滤器</p> * @return：CorsFilter * @author：gusong * @date：2019/4/1 20:02 */ @Bean public CorsFilter corsFilter() { UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(); source.registerCorsConfiguration("/**", buildConfig()); return new CorsFilter(source); }

}