NioDatagramChannel (Netty 4.1.109.Final API文档

java.lang.Object
- io.netty.util.DefaultAttributeMap
- - io.netty.channel.AbstractChannel
  - - io.netty.channel.nio.AbstractNioChannel
    - - io.netty.channel.nio.AbstractNioMessageChannel
      - io.netty.channel.socket.nio.NioDatagramChannel

所有已实现的接口:

Channel, ChannelOutboundInvoker, DatagramChannel, AttributeMap, java.lang.Comparable<Channel>
```
public final class NioDatagramChannel
extends AbstractNioMessageChannel
implements DatagramChannel
```
An NIO datagram Channel that sends and receives an AddressedEnvelope.

另请参阅:

AddressedEnvelope, DatagramPacket

嵌套类概要
- 从类继承的嵌套类/接口 io.netty.channel.nio.AbstractNioChannel
  AbstractNioChannel.AbstractNioUnsafe, AbstractNioChannel.NioUnsafe
- 从类继承的嵌套类/接口 io.netty.channel.AbstractChannel
  AbstractChannel.AbstractUnsafe
- 从接口继承的嵌套类/接口 io.netty.channel.Channel
  Channel.Unsafe

字段概要
- 从类继承的字段 io.netty.channel.nio.AbstractNioChannel
  readInterestOp

构造器概要

构造器
构造器和说明
`NioDatagramChannel()` Create a new instance which will use the Operation Systems default `InternetProtocolFamily`.
`NioDatagramChannel(java.nio.channels.DatagramChannel socket)` Create a new instance from the given `DatagramChannel`.
`NioDatagramChannel(InternetProtocolFamily ipFamily)` Create a new instance using the given `InternetProtocolFamily`.
`NioDatagramChannel(java.nio.channels.spi.SelectorProvider provider)` Create a new instance using the given `SelectorProvider` which will use the Operation Systems default `InternetProtocolFamily`.
`NioDatagramChannel(java.nio.channels.spi.SelectorProvider provider, InternetProtocolFamily ipFamily)` Create a new instance using the given `SelectorProvider` and `InternetProtocolFamily`.

方法概要

All Methods Instance Methods Concrete Methods Deprecated Methods
限定符和类型	方法和说明
`ChannelFuture`	`block(java.net.InetAddress multicastAddress, java.net.InetAddress sourceToBlock)` Block the given sourceToBlock address for the given multicastAddress
`ChannelFuture`	`block(java.net.InetAddress multicastAddress, java.net.InetAddress sourceToBlock, ChannelPromise promise)` Block the given sourceToBlock address for the given multicastAddress
`ChannelFuture`	`block(java.net.InetAddress multicastAddress, java.net.NetworkInterface networkInterface, java.net.InetAddress sourceToBlock)` Block the given sourceToBlock address for the given multicastAddress on the given networkInterface
`ChannelFuture`	`block(java.net.InetAddress multicastAddress, java.net.NetworkInterface networkInterface, java.net.InetAddress sourceToBlock, ChannelPromise promise)` Block the given sourceToBlock address for the given multicastAddress on the given networkInterface
`protected boolean`	`closeOnReadError(java.lang.Throwable cause)`
`DatagramChannelConfig`	`config()` Returns the configuration of this channel.
`protected boolean`	`continueOnWriteError()` Returns `true` if we should continue the write loop on a write error.
`protected boolean`	`continueReading(RecvByteBufAllocator.Handle allocHandle)`
`protected void`	`doBind(java.net.SocketAddress localAddress)` Bind the `Channel` to the `SocketAddress`
`protected void`	`doClose()` Close the `Channel`
`protected boolean`	`doConnect(java.net.SocketAddress remoteAddress, java.net.SocketAddress localAddress)` Connect to the remote peer
`protected void`	`doDisconnect()` Disconnect this `Channel` from its remote peer
`protected void`	`doFinishConnect()` Finish the connect
`protected int`	`doReadMessages(java.util.List<java.lang.Object> buf)` Read messages into the given array and return the amount which was read.
`protected boolean`	`doWriteMessage(java.lang.Object msg, ChannelOutboundBuffer in)` Write a message to the underlying `Channel`.
`protected java.lang.Object`	`filterOutboundMessage(java.lang.Object msg)` Invoked when a new message is added to a `ChannelOutboundBuffer` of this `AbstractChannel`, so that the `Channel` implementation converts the message to another.
`boolean`	`isActive()` Return `true` if the `Channel` is active and so connected.
`boolean`	`isConnected()` Return `true` if the `DatagramChannel` is connected to the remote peer.
`protected java.nio.channels.DatagramChannel`	`javaChannel()`
`ChannelFuture`	`joinGroup(java.net.InetAddress multicastAddress)` Joins a multicast group and notifies the `ChannelFuture` once the operation completes.
`ChannelFuture`	`joinGroup(java.net.InetAddress multicastAddress, ChannelPromise promise)` Joins a multicast group and notifies the `ChannelFuture` once the operation completes.
`ChannelFuture`	`joinGroup(java.net.InetAddress multicastAddress, java.net.NetworkInterface networkInterface, java.net.InetAddress source)` Joins the specified multicast group at the specified interface and notifies the `ChannelFuture` once the operation completes.
`ChannelFuture`	`joinGroup(java.net.InetAddress multicastAddress, java.net.NetworkInterface networkInterface, java.net.InetAddress source, ChannelPromise promise)` Joins the specified multicast group at the specified interface and notifies the `ChannelFuture` once the operation completes.
`ChannelFuture`	`joinGroup(java.net.InetSocketAddress multicastAddress, java.net.NetworkInterface networkInterface)` Joins the specified multicast group at the specified interface and notifies the `ChannelFuture` once the operation completes.
`ChannelFuture`	`joinGroup(java.net.InetSocketAddress multicastAddress, java.net.NetworkInterface networkInterface, ChannelPromise promise)` Joins the specified multicast group at the specified interface and notifies the `ChannelFuture` once the operation completes.
`ChannelFuture`	`leaveGroup(java.net.InetAddress multicastAddress)` Leaves a multicast group and notifies the `ChannelFuture` once the operation completes.
`ChannelFuture`	`leaveGroup(java.net.InetAddress multicastAddress, ChannelPromise promise)` Leaves a multicast group and notifies the `ChannelFuture` once the operation completes.
`ChannelFuture`	`leaveGroup(java.net.InetAddress multicastAddress, java.net.NetworkInterface networkInterface, java.net.InetAddress source)` Leave the specified multicast group at the specified interface using the specified source and notifies the `ChannelFuture` once the operation completes.
`ChannelFuture`	`leaveGroup(java.net.InetAddress multicastAddress, java.net.NetworkInterface networkInterface, java.net.InetAddress source, ChannelPromise promise)` Leave the specified multicast group at the specified interface using the specified source and notifies the `ChannelFuture` once the operation completes.
`ChannelFuture`	`leaveGroup(java.net.InetSocketAddress multicastAddress, java.net.NetworkInterface networkInterface)` Leaves a multicast group on a specified local interface and notifies the `ChannelFuture` once the operation completes.
`ChannelFuture`	`leaveGroup(java.net.InetSocketAddress multicastAddress, java.net.NetworkInterface networkInterface, ChannelPromise promise)` Leaves a multicast group on a specified local interface and notifies the `ChannelFuture` once the operation completes.
`java.net.InetSocketAddress`	`localAddress()` Returns the local address where this channel is bound to.
`protected java.net.SocketAddress`	`localAddress0()` Returns the `SocketAddress` which is bound locally.
`ChannelMetadata`	`metadata()` Return the `ChannelMetadata` of the `Channel` which describe the nature of the `Channel`.
`java.net.InetSocketAddress`	`remoteAddress()` Returns the remote address where this channel is connected to.
`protected java.net.SocketAddress`	`remoteAddress0()` Return the `SocketAddress` which the `Channel` is connected to.
`protected void`	`setReadPending(boolean readPending)` 已过时。

从类继承的方法 io.netty.channel.nio.AbstractNioMessageChannel
doBeginRead, doWrite, newUnsafe

从类继承的方法 io.netty.channel.nio.AbstractNioChannel
clearReadPending, doDeregister, doRegister, eventLoop, isCompatible, isOpen, isReadPending, newDirectBuffer, newDirectBuffer, selectionKey, unsafe

从类继承的方法 io.netty.channel.AbstractChannel
alloc, bind, bind, bytesBeforeUnwritable, bytesBeforeWritable, close, close, closeFuture, compareTo, connect, connect, connect, connect, deregister, deregister, disconnect, disconnect, doShutdownOutput, equals, flush, hashCode, id, invalidateLocalAddress, invalidateRemoteAddress, isRegistered, isWritable, maxMessagesPerWrite, newChannelPipeline, newFailedFuture, newId, newProgressivePromise, newPromise, newSucceededFuture, parent, pipeline, read, toString, validateFileRegion, voidPromise, write, write, writeAndFlush, writeAndFlush

从类继承的方法 io.netty.util.DefaultAttributeMap
attr, hasAttr

从类继承的方法 java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

从接口继承的方法 io.netty.channel.Channel
alloc, bytesBeforeUnwritable, bytesBeforeWritable, closeFuture, eventLoop, flush, id, isOpen, isRegistered, isWritable, parent, pipeline, read, unsafe

从接口继承的方法 io.netty.util.AttributeMap
attr, hasAttr

从接口继承的方法 io.netty.channel.ChannelOutboundInvoker
bind, bind, close, close, connect, connect, connect, connect, deregister, deregister, disconnect, disconnect, newFailedFuture, newProgressivePromise, newPromise, newSucceededFuture, voidPromise, write, write, writeAndFlush, writeAndFlush

从接口继承的方法 java.lang.Comparable
compareTo

- 构造器详细资料
  - NioDatagramChannel
```
public NioDatagramChannel()
```
    Create a new instance which will use the Operation Systems default InternetProtocolFamily.
  - NioDatagramChannel
```
public NioDatagramChannel(java.nio.channels.spi.SelectorProvider provider)
```
    Create a new instance using the given SelectorProvider which will use the Operation Systems default InternetProtocolFamily.
  - NioDatagramChannel
```
public NioDatagramChannel(InternetProtocolFamily ipFamily)
```
    Create a new instance using the given InternetProtocolFamily. If null is used it will depend on the Operation Systems default which will be chosen.
  - NioDatagramChannel
```
public NioDatagramChannel(java.nio.channels.spi.SelectorProvider provider,
                          InternetProtocolFamily ipFamily)
```
    Create a new instance using the given SelectorProvider and InternetProtocolFamily. If InternetProtocolFamily is null it will depend on the Operation Systems default which will be chosen.
  - NioDatagramChannel
```
public NioDatagramChannel(java.nio.channels.DatagramChannel socket)
```
    Create a new instance from the given DatagramChannel.
- 方法详细资料
  - metadata
```
public ChannelMetadata metadata()
```
    从接口复制的说明: Channel
    
    Return the ChannelMetadata of the Channel which describe the nature of the Channel.
    
    指定者:
    
    metadata 在接口中 Channel
  - config
```
public DatagramChannelConfig config()
```
    从接口复制的说明: Channel
    
    Returns the configuration of this channel.
    
    指定者:
    
    config 在接口中 Channel
    
    指定者:
    
    config 在接口中 DatagramChannel
  - isActive
```
public boolean isActive()
```
    从接口复制的说明: Channel
    
    Return true if the Channel is active and so connected.
    
    指定者:
    
    isActive 在接口中 Channel
  - isConnected
```
public boolean isConnected()
```
    从接口复制的说明: DatagramChannel
    
    Return true if the DatagramChannel is connected to the remote peer.
    
    指定者:
    
    isConnected 在接口中 DatagramChannel
  - javaChannel
```
protected java.nio.channels.DatagramChannel javaChannel()
```
    覆盖:
    
    javaChannel 在类中 AbstractNioChannel
  - localAddress0
```
protected java.net.SocketAddress localAddress0()
```
    从类复制的说明: AbstractChannel
    
    Returns the SocketAddress which is bound locally.
    
    指定者:
    
    localAddress0 在类中 AbstractChannel
  - remoteAddress0
```
protected java.net.SocketAddress remoteAddress0()
```
    从类复制的说明: AbstractChannel
    
    Return the SocketAddress which the Channel is connected to.
    
    指定者:
    
    remoteAddress0 在类中 AbstractChannel
  - doBind
```
protected void doBind(java.net.SocketAddress localAddress)
               throws java.lang.Exception
```
    从类复制的说明: AbstractChannel
    
    Bind the Channel to the SocketAddress
    
    指定者:
    
    doBind 在类中 AbstractChannel
    
    抛出:
    
    java.lang.Exception
  - doConnect
```
protected boolean doConnect(java.net.SocketAddress remoteAddress,
                            java.net.SocketAddress localAddress)
                     throws java.lang.Exception
```
    从类复制的说明: AbstractNioChannel
    
    Connect to the remote peer
    
    指定者:
    
    doConnect 在类中 AbstractNioChannel
    
    抛出:
    
    java.lang.Exception
  - doFinishConnect
```
protected void doFinishConnect()
                        throws java.lang.Exception
```
    从类复制的说明: AbstractNioChannel
    
    Finish the connect
    
    指定者:
    
    doFinishConnect 在类中 AbstractNioChannel
    
    抛出:
    
    java.lang.Exception
  - doDisconnect
```
protected void doDisconnect()
                     throws java.lang.Exception
```
    从类复制的说明: AbstractChannel
    
    Disconnect this Channel from its remote peer
    
    指定者:
    
    doDisconnect 在类中 AbstractChannel
    
    抛出:
    
    java.lang.Exception
  - doClose
```
protected void doClose()
                throws java.lang.Exception
```
    从类复制的说明: AbstractChannel
    
    Close the Channel
    
    覆盖:
    
    doClose 在类中 AbstractNioChannel
    
    抛出:
    
    java.lang.Exception
  - doReadMessages
```
protected int doReadMessages(java.util.List<java.lang.Object> buf)
                      throws java.lang.Exception
```
    从类复制的说明: AbstractNioMessageChannel
    
    Read messages into the given array and return the amount which was read.
    
    指定者:
    
    doReadMessages 在类中 AbstractNioMessageChannel
    
    抛出:
    
    java.lang.Exception
  - doWriteMessage
```
protected boolean doWriteMessage(java.lang.Object msg,
                                 ChannelOutboundBuffer in)
                          throws java.lang.Exception
```
    从类复制的说明: AbstractNioMessageChannel
    
    Write a message to the underlying Channel.
    
    指定者:
    
    doWriteMessage 在类中 AbstractNioMessageChannel
    
    返回:
    
    true if and only if the message has been written
    
    抛出:
    
    java.lang.Exception
  - filterOutboundMessage
```
protected java.lang.Object filterOutboundMessage(java.lang.Object msg)
```
    从类复制的说明: AbstractChannel
    
    Invoked when a new message is added to a ChannelOutboundBuffer of this AbstractChannel, so that the Channel implementation converts the message to another. (e.g. heap buffer -> direct buffer)
    
    覆盖:
    
    filterOutboundMessage 在类中 AbstractChannel
  - continueOnWriteError
```
protected boolean continueOnWriteError()
```
    从类复制的说明: AbstractNioMessageChannel
    
    Returns true if we should continue the write loop on a write error.
    
    覆盖:
    
    continueOnWriteError 在类中 AbstractNioMessageChannel
  - localAddress
```
public java.net.InetSocketAddress localAddress()
```
    从接口复制的说明: Channel
    
    Returns the local address where this channel is bound to. The returned SocketAddress is supposed to be down-cast into more concrete type such as InetSocketAddress to retrieve the detailed information.
    
    指定者:
    
    localAddress 在接口中 Channel
    
    指定者:
    
    localAddress 在接口中 DatagramChannel
    
    覆盖:
    
    localAddress 在类中 AbstractChannel
    
    返回:
    
    the local address of this channel. null if this channel is not bound.
  - remoteAddress
```
public java.net.InetSocketAddress remoteAddress()
```
    从接口复制的说明: Channel
    
    Returns the remote address where this channel is connected to. The returned SocketAddress is supposed to be down-cast into more concrete type such as InetSocketAddress to retrieve the detailed information.
    
    指定者:
    
    remoteAddress 在接口中 Channel
    
    指定者:
    
    remoteAddress 在接口中 DatagramChannel
    
    覆盖:
    
    remoteAddress 在类中 AbstractChannel
    
    返回:
    
    the remote address of this channel. null if this channel is not connected. If this channel is not connected but it can receive messages from arbitrary remote addresses (e.g. DatagramChannel, use DefaultAddressedEnvelope.recipient() to determine the origination of the received message as this method will return null.
  - joinGroup
```
public ChannelFuture joinGroup(java.net.InetAddress multicastAddress)
```
    从接口复制的说明: DatagramChannel
    
    Joins a multicast group and notifies the ChannelFuture once the operation completes.
    
    指定者:
    
    joinGroup 在接口中 DatagramChannel
  - joinGroup
```
public ChannelFuture joinGroup(java.net.InetAddress multicastAddress,
                               ChannelPromise promise)
```
    从接口复制的说明: DatagramChannel
    
    Joins a multicast group and notifies the ChannelFuture once the operation completes. The given ChannelFuture will be notified and also returned.
    
    指定者:
    
    joinGroup 在接口中 DatagramChannel
  - joinGroup
```
public ChannelFuture joinGroup(java.net.InetSocketAddress multicastAddress,
                               java.net.NetworkInterface networkInterface)
```
    从接口复制的说明: DatagramChannel
    
    Joins the specified multicast group at the specified interface and notifies the ChannelFuture once the operation completes.
    
    指定者:
    
    joinGroup 在接口中 DatagramChannel
  - joinGroup
```
public ChannelFuture joinGroup(java.net.InetSocketAddress multicastAddress,
                               java.net.NetworkInterface networkInterface,
                               ChannelPromise promise)
```
    从接口复制的说明: DatagramChannel
    
    Joins the specified multicast group at the specified interface and notifies the ChannelFuture once the operation completes. The given ChannelFuture will be notified and also returned.
    
    指定者:
    
    joinGroup 在接口中 DatagramChannel
  - joinGroup
```
public ChannelFuture joinGroup(java.net.InetAddress multicastAddress,
                               java.net.NetworkInterface networkInterface,
                               java.net.InetAddress source)
```
    从接口复制的说明: DatagramChannel
    
    Joins the specified multicast group at the specified interface and notifies the ChannelFuture once the operation completes.
    
    指定者:
    
    joinGroup 在接口中 DatagramChannel
  - joinGroup
```
public ChannelFuture joinGroup(java.net.InetAddress multicastAddress,
                               java.net.NetworkInterface networkInterface,
                               java.net.InetAddress source,
                               ChannelPromise promise)
```
    从接口复制的说明: DatagramChannel
    
    Joins the specified multicast group at the specified interface and notifies the ChannelFuture once the operation completes. The given ChannelFuture will be notified and also returned.
    
    指定者:
    
    joinGroup 在接口中 DatagramChannel
  - leaveGroup
```
public ChannelFuture leaveGroup(java.net.InetAddress multicastAddress)
```
    从接口复制的说明: DatagramChannel
    
    Leaves a multicast group and notifies the ChannelFuture once the operation completes.
    
    指定者:
    
    leaveGroup 在接口中 DatagramChannel
  - leaveGroup
```
public ChannelFuture leaveGroup(java.net.InetAddress multicastAddress,
                                ChannelPromise promise)
```
    从接口复制的说明: DatagramChannel
    
    Leaves a multicast group and notifies the ChannelFuture once the operation completes. The given ChannelFuture will be notified and also returned.
    
    指定者:
    
    leaveGroup 在接口中 DatagramChannel
  - leaveGroup
```
public ChannelFuture leaveGroup(java.net.InetSocketAddress multicastAddress,
                                java.net.NetworkInterface networkInterface)
```
    从接口复制的说明: DatagramChannel
    
    Leaves a multicast group on a specified local interface and notifies the ChannelFuture once the operation completes.
    
    指定者:
    
    leaveGroup 在接口中 DatagramChannel
  - leaveGroup
```
public ChannelFuture leaveGroup(java.net.InetSocketAddress multicastAddress,
                                java.net.NetworkInterface networkInterface,
                                ChannelPromise promise)
```
    从接口复制的说明: DatagramChannel
    
    Leaves a multicast group on a specified local interface and notifies the ChannelFuture once the operation completes. The given ChannelFuture will be notified and also returned.
    
    指定者:
    
    leaveGroup 在接口中 DatagramChannel
  - leaveGroup
```
public ChannelFuture leaveGroup(java.net.InetAddress multicastAddress,
                                java.net.NetworkInterface networkInterface,
                                java.net.InetAddress source)
```
    从接口复制的说明: DatagramChannel
    
    Leave the specified multicast group at the specified interface using the specified source and notifies the ChannelFuture once the operation completes.
    
    指定者:
    
    leaveGroup 在接口中 DatagramChannel
  - leaveGroup
```
public ChannelFuture leaveGroup(java.net.InetAddress multicastAddress,
                                java.net.NetworkInterface networkInterface,
                                java.net.InetAddress source,
                                ChannelPromise promise)
```
    从接口复制的说明: DatagramChannel
    
    Leave the specified multicast group at the specified interface using the specified source and notifies the ChannelFuture once the operation completes. The given ChannelFuture will be notified and also returned.
    
    指定者:
    
    leaveGroup 在接口中 DatagramChannel
  - block
```
public ChannelFuture block(java.net.InetAddress multicastAddress,
                           java.net.NetworkInterface networkInterface,
                           java.net.InetAddress sourceToBlock)
```
    Block the given sourceToBlock address for the given multicastAddress on the given networkInterface
    
    指定者:
    
    block 在接口中 DatagramChannel
  - block
```
public ChannelFuture block(java.net.InetAddress multicastAddress,
                           java.net.NetworkInterface networkInterface,
                           java.net.InetAddress sourceToBlock,
                           ChannelPromise promise)
```
    Block the given sourceToBlock address for the given multicastAddress on the given networkInterface
    
    指定者:
    
    block 在接口中 DatagramChannel
  - block
```
public ChannelFuture block(java.net.InetAddress multicastAddress,
                           java.net.InetAddress sourceToBlock)
```
    Block the given sourceToBlock address for the given multicastAddress
    
    指定者:
    
    block 在接口中 DatagramChannel
  - block
```
public ChannelFuture block(java.net.InetAddress multicastAddress,
                           java.net.InetAddress sourceToBlock,
                           ChannelPromise promise)
```
    Block the given sourceToBlock address for the given multicastAddress
    
    指定者:
    
    block 在接口中 DatagramChannel
  - setReadPending
```
@Deprecated
protected void setReadPending(boolean readPending)
```
    已过时。
    
    覆盖:
    
    setReadPending 在类中 AbstractNioChannel
  - closeOnReadError
```
protected boolean closeOnReadError(java.lang.Throwable cause)
```
    覆盖:
    
    closeOnReadError 在类中 AbstractNioMessageChannel
  - continueReading
```
protected boolean continueReading(RecvByteBufAllocator.Handle allocHandle)
```
    覆盖:
    
    continueReading 在类中 AbstractNioMessageChannel

类 NioDatagramChannel

嵌套类概要

从类继承的嵌套类/接口 io.netty.channel.nio.AbstractNioChannel

从类继承的嵌套类/接口 io.netty.channel.AbstractChannel

从接口继承的嵌套类/接口 io.netty.channel.Channel

字段概要

从类继承的字段 io.netty.channel.nio.AbstractNioChannel

构造器概要

方法概要

从类继承的方法 io.netty.channel.nio.AbstractNioMessageChannel

从类继承的方法 io.netty.channel.nio.AbstractNioChannel

从类继承的方法 io.netty.channel.AbstractChannel

从类继承的方法 io.netty.util.DefaultAttributeMap

从类继承的方法 java.lang.Object

从接口继承的方法 io.netty.channel.Channel

从接口继承的方法 io.netty.util.AttributeMap

从接口继承的方法 io.netty.channel.ChannelOutboundInvoker

从接口继承的方法 java.lang.Comparable

构造器详细资料

NioDatagramChannel

NioDatagramChannel

NioDatagramChannel

NioDatagramChannel

NioDatagramChannel

方法详细资料

metadata

config

isActive

isConnected

javaChannel

localAddress0

remoteAddress0

doBind

doConnect

doFinishConnect

doDisconnect

doClose

doReadMessages

doWriteMessage

filterOutboundMessage

continueOnWriteError

localAddress

remoteAddress

joinGroup

joinGroup

joinGroup

joinGroup

joinGroup

joinGroup

leaveGroup

leaveGroup

leaveGroup

leaveGroup

leaveGroup

leaveGroup

block

block

block

block

setReadPending

closeOnReadError

continueReading