dnsPromises.resolveSrv(hostname)

新增于: v10.6.0

hostname <string>

使用 DNS 协议解析 hostname 的服务记录（SRV 记录）。成功时，Promise 会解析为包含以下属性的对象数组：

【Uses the DNS protocol to resolve service records (SRV records) for the hostname. On success, the Promise is resolved with an array of objects with the following properties:】

priority
weight
port
name

{
  priority: 10,
  weight: 5,
  port: 21223,
  name: 'service.example.com'
}