How to solve the problem that the node cannot log in to Elasticsearch?

Solution
Modify the following fields in the configuration file /etc/elasticsearrch.yml (insert at the end)

http.cors.enabled: true                  #开启跨域访问支持，默认为false
http.cors.allow-origin: "*"              #跨域访问允许的域名地址

Finally, restart the service.