io.netty.resolver.dns

类 DefaultDnsServerAddressStreamProvider

java.lang.Object

io.netty.resolver.dns.DefaultDnsServerAddressStreamProvider

所有已实现的接口:

DnsServerAddressStreamProvider

public final class DefaultDnsServerAddressStreamProvider
extends java.lang.Object
implements DnsServerAddressStreamProvider

A DnsServerAddressStreamProvider which will use predefined default DNS servers to use for DNS resolution. These defaults do not respect your host's machines defaults.

This may use the JDK's blocking DNS resolution to bootstrap the default DNS server addresses.

字段概要

字段

限定符和类型	字段和说明
static DefaultDnsServerAddressStreamProvider	INSTANCE

方法概要

限定符和类型	方法和说明
static DnsServerAddresses	defaultAddresses() Returns the DnsServerAddresses that yields the system DNS server addresses sequentially.
static java.util.List<java.net.InetSocketAddress>	defaultAddressList() Returns the list of the system DNS server addresses.
DnsServerAddressStream	nameServerAddressStream(java.lang.String hostname) Ask this provider for the name servers to query for hostname.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

INSTANCE

public static final DefaultDnsServerAddressStreamProvider INSTANCE

方法详细资料

nameServerAddressStream

public DnsServerAddressStream nameServerAddressStream(java.lang.String hostname)

从接口复制的说明: DnsServerAddressStreamProvider

Ask this provider for the name servers to query for hostname.

指定者:

nameServerAddressStream 在接口中 DnsServerAddressStreamProvider

参数:

hostname - The hostname for which to lookup the DNS server addressed to use. If this is the final DnsServerAddressStreamProvider to be queried then generally empty string or '.' correspond to the default DnsServerAddressStream.

返回:

The DnsServerAddressStream which should be used to resolve hostname.

defaultAddressList

public static java.util.List<java.net.InetSocketAddress> defaultAddressList()

Returns the list of the system DNS server addresses. If it failed to retrieve the list of the system DNS server addresses from the environment, it will return "8.8.8.8" and "8.8.4.4", the addresses of the Google public DNS servers.

defaultAddresses

public static DnsServerAddresses defaultAddresses()

Returns the DnsServerAddresses that yields the system DNS server addresses sequentially. If it failed to retrieve the list of the system DNS server addresses from the environment, it will use "8.8.8.8" and "8.8.4.4", the addresses of the Google public DNS servers.

This method has the same effect with the following code:

 DnsServerAddresses.sequential(DnsServerAddresses.defaultAddressList());