springboot配置跨域

package com.java456.util;

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;
/**
 * @author suntongxin
 * Create on 2017年7月6日下午8:05:19
 * All right reserved
 */
@Configuration
public class CorsConfig {
    private CorsConfiguration buildConfig() {
        CorsConfiguration corsConfiguration = new CorsConfiguration();
        corsConfiguration.addAllowedOrigin("*"); //允許任何域名
        corsConfiguration.addAllowedHeader("*"); //允許任何頭
        corsConfiguration.addAllowedMethod("*"); //允許任何方法
        return corsConfiguration;
    }

    @Bean
    public CorsFilter corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", buildConfig()); //註冊
        return new CorsFilter(source);
    }
}
這個是之前照抄別人的，但是現在找不到那個網頁的url了，只能把作者信息寫進註釋裏面