package com.mzl.flower.config;

import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;

/**
 * 跨域配置
 */
@Configuration
public class CrosConfig {

    @Bean
    public FilterRegistrationBean corsFilter() {
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowCredentials(true);
        config.addAllowedOrigin("*");
        config.addAllowedHeader("*");
        config.addAllowedMethod("*");
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", config);
        FilterRegistrationBean bean = new FilterRegistrationBean(new CorsFilter(source));
        //这里设置优先级最高
        bean.setOrder(Ordered.HIGHEST_PRECEDENCE);
        return bean;
    }
//    @Configuration
//    public static class CorsAllowedFilterConfiguration {
//        @Bean
//        public FilterRegistrationBean corsAllowedFilterRegistration() {
//            FilterRegistrationBean registration = new FilterRegistrationBean();
//            final Filter securityFilter = corsAllowedFilter();
//            registration.setFilter(securityFilter);
//            registration.addUrlPatterns("/*");
//            registration.setName("corsAllowedFilter");
//            registration.setOrder(-102);
//            return registration;
//        }
//
//        @Bean()
//        public Filter corsAllowedFilter() {
//            return new CorsAllowedFilter();
//        }
//    }
}