java用戶端關閉連結服務端_java – 在Netty中關閉用戶端連接配接

我有簡單的Netty用戶端/伺服器應用程式.在伺服器端,我檢查用戶端是否從正确的主機連接配接,如果它不正确,請關閉用戶端的連接配接.在伺服器端我使用此代碼：

@Override

public void channelActive(ChannelHandlerContext ctx) throws Exception {

String remoteAddress = ctx.channel().remoteAddress().toString();

if(!"/127.0.0.1:42477".equals(remoteAddress)) {

ctx.writeAndFlush("Not correct remote address! Connection closed");

ctx.close();

}

System.out.println(remoteAddress);

}

在用戶端這一個：

@Override

protected void channelRead0(ChannelHandlerContext ctx, String data) throws Exception {

try {

System.err.println(data);

} finally {

ReferenceCountUtil.retain(data);

}

}

但我無法從伺服器端擷取ctx.writeAndFlush()和用戶端關閉的消息,但異常：

java.io.IOException: Соединение сброшено другой стороной(TRANSLATION: Connection reset from the other side)

at sun.nio.ch.FileDispatcherImpl.read0(Native Method)

at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)

at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)

at sun.nio.ch.IOUtil.read(IOUtil.java:192)

at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379)

at io.netty.buffer.UnpooledUnsafeDirectByteBuf.setBytes(UnpooledUnsafeDirectByteBuf.java:447)

at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:881)

at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:242)

at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:119)

at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)

at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)

at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)

at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)

at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)

at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)

at java.lang.Thread.run(Thread.java:745)

我如何以嚴謹的方式關閉用戶端連接配接？我是網絡新手