Nginx访问服务器静态资源图片配置，并设置CORS跨域问题

# ngxin访问服务器静态资源图片
        location ~ .*\.(gif|jpg|jpeg|png)$ {
                  charset utf-8; # 避免中文乱码
                  root /files/prod;
                  expires 1d;

        }
	# nginx 访问本地静态资源，添加图片跨域
        add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';
	add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization';
 
	if ($request_method = 'OPTIONS') {
		return 204;
	}

完整的nginx代码

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    server {
        listen       80;
        server_name  localhost 175.102.135.104;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location /dmp-admin/dmp-admin {
   			alias /usr/local/dmp/dist; #html访问路径  
	        	index index.html;
	          try_files $uri $uri/ /index.html;
	          expires 1d;

        }
		location /dmp-admin {
   			alias /usr/local/dmp/dist; #html访问路径  
	        	index index.html;
	          try_files $uri $uri/ /index.html;
	          expires 1d;

        }
        	location / {
   			root /usr/local/dmp/dist; #html访问路径  
	        	index index.html;
	          try_files $uri $uri/ /index.html;
	          expires 1d;

        }

	# ngxin访问服务器静态资源图片
        location ~ .*\.(gif|jpg|jpeg|png)$ {
                  charset utf-8; # 避免中文乱码
                  root /files/prod;
                  expires 1d;

        }
	# nginx 访问本地静态资源，添加图片跨域
        add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';
	add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization';
 
	if ($request_method = 'OPTIONS') {
		return 204;
	}
	location /xtl-server/ {
            proxy_http_version 1.1; #代理使用的http协议
            proxy_set_header Host $host; #header添加请求host信息
            proxy_set_header X-Real-IP $remote_addr; # header增加请求来源IP信息
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; # 增加代理记录
            proxy_pass http://127.0.0.1:9876; #服务数据中台访问地址
        }
	
        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }

    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

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

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

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}