nginx服务器配置传递给下一层的信息的一些参数-设置哪些跨域的域名可访问

http {
    server_tokens off;    #隐藏nginx版本
    proxy_headers_hash_max_size 51200;
    proxy_headers_hash_bucket_size 6400
    server {
        listen       80;
        server_name  localhost ；
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $host;
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Headers' '*';
        add_header 'Access-Control-Allow-Methods' '*';

　　server {
　　　　server_tokens off;
　　　　listen 443 ssl;
　　　　server_name xxxx.xx.com;

　　　　ssl_certificate /usr/local/nginx/cert/xxx.cer;
　　　　ssl_certificate_key /usr/local/nginx/cert/xxx.key;

　　　　ssl_session_cache shared:SSL:1m;
　　　　ssl_session_timeout 5m;

　　　　ssl_ciphers HIGH:!aNULL:!MD5;
　　　　ssl_prefer_server_ciphers on;

　　　　charset UTF-8;
　　　　proxy_set_header X-Real-IP $remote_addr;
　　　　proxy_set_header X-Forwarded-For $remote_addr;
　　　　proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
　　　　proxy_set_header Host $host;
　　　　add_header 'Access-Control-Allow-Origin' '*';
　　　　add_header 'Access-Control-Allow-Headers' '*';
　　　　add_header 'Access-Control-Allow-Methods' '*';

}

}

@Configuration
public class CorsConfig {

    @Value("#{'${xxx.allowed-origins}'.split(',')}")
    private List<String> allowedorigins;

    @Bean
    public CorsWebFilter corsFilter() {
        CorsConfiguration config = new CorsConfiguration();
        config.addAllowedMethod("*");
        if(allowedorigins!=null&&allowedorigins.size()>0){
            for (String origin:allowedorigins
                 ) {
                config.addAllowedOrigin(origin);
            }
        }
        config.addAllowedHeader("*");
        config.setAllowCredentials(true);
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(new PathPatternParser());
        source.registerCorsConfiguration("/**", config);
        return new CorsWebFilter(source);
    }