dns.Resolver 类

域名系统请求的独立解析器。

创建新的解析器使用默认的服务器设置。 使用 resolver.setServers() 设置用于解析器的服务器不会影响其他解析器：

const { Resolver } = require('dns');
const resolver = new Resolver();
resolver.setServers(['4.4.4.4']);

// 此请求将使用 4.4.4.4 的服务器，与全局设置无关。
resolver.resolve4('example.org', (err, addresses) => {
  // ...
});

可以使用 dns 模块中的以下方法：

• resolver.getServers()
• resolver.resolve()
• resolver.resolve4()
• resolver.resolve6()
• resolver.resolveAny()
• resolver.resolveCaa()
• resolver.resolveCname()
• resolver.resolveMx()
• resolver.resolveNaptr()
• resolver.resolveNs()
• resolver.resolvePtr()
• resolver.resolveSoa()
• resolver.resolveSrv()
• resolver.resolveTxt()
• resolver.reverse()
• resolver.setServers()

An independent resolver for DNS requests.

Creating a new resolver uses the default server settings. Setting the servers used for a resolver using resolver.setServers() does not affect other resolvers:

const { Resolver } = require('dns');
const resolver = new Resolver();
resolver.setServers(['4.4.4.4']);

// This request will use the server at 4.4.4.4, independent of global settings.
resolver.resolve4('example.org', (err, addresses) => {
  // ...
});

The following methods from the dns module are available:

• resolver.getServers()
• resolver.resolve()
• resolver.resolve4()
• resolver.resolve6()
• resolver.resolveAny()
• resolver.resolveCaa()
• resolver.resolveCname()
• resolver.resolveMx()
• resolver.resolveNaptr()
• resolver.resolveNs()
• resolver.resolvePtr()
• resolver.resolveSoa()
• resolver.resolveSrv()
• resolver.resolveTxt()
• resolver.reverse()
• resolver.setServers()