springboot 跨域(CORS) 配置类 亲测可用

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 liyuxin
 */
@Configuration
public class GlobalCorsConfig {

    @Bean
    public CorsFilter corsFilter() {
        CorsConfiguration config = new CorsConfiguration();
        //开放哪些ip、端口、域名的访问权限，星号表示开放所有域
        //config.addAllowedOrigin("*");
        config.addAllowedOriginPattern("*");
        //是否允许发送Cookie信息
        config.setAllowCredentials(true);
        //开放哪些Http方法，允许跨域访问
        config.addAllowedMethod("*");
        //允许HTTP请求中的携带哪些Header信息
        config.addAllowedHeader("*");
        //暴露哪些头部信息（因为跨域访问默认不能获取全部头部信息）
        //config.addExposedHeader("*");

        config.addExposedHeader("Content-Type");
        config.addExposedHeader( "X-Requested-With");
        config.addExposedHeader("accept");
        config.addExposedHeader("Origin");
        config.addExposedHeader( "Access-Control-Request-Method");
        config.addExposedHeader("Access-Control-Request-Headers");

        //添加映射路径，“/**”表示对所有的路径实行全局跨域访问权限的设置
        UrlBasedCorsConfigurationSource configSource = new UrlBasedCorsConfigurationSource();
        configSource.registerCorsConfiguration("/**", config);

        return new CorsFilter(configSource);
    }