前端后数据分离后，跨域问题肯定存在的。解决办法cors，jsonp解决跨域问题，当然服务端要设置信认。也可以设置成同域，这样跨域问题就不存在了。

# cat dsp.conf   //配置
server
{

	listen       8080;
	server_name  10.0.0.237;

	location / {
		root  /var/www/dsp/dist;
		index  index.html;
		try_files $uri $uri/ /index.html;
	}

	location /api/ {      //接口反代
		proxy_pass http://10.0.0.30;
	}

	access_log /var/log/Nginx/dsp.access.log;
	error_log /var/log/Nginx/dsp.error.log;

}

# Nginx -t   //检测
Nginx: the configuration file /etc/Nginx/Nginx.conf Syntax is ok
Nginx: configuration file /etc/Nginx/Nginx.conf test is successful

# systemctl reload Nginx  //重新加载配置