ServerSocketChannelImpl ClassCastException異常寫從服務器到客戶端的Java灰熊

Question

當「寫」 FilterChain的外周，TCPNIOServerConnection到指定的客戶，我送花兒給人有以下異常：

INFORMATION: Write to /127.0.0.1:50559 
Dez 27, 2014 10:57:11 PM org.glassfish.grizzly.filterchain.DefaultFilterChain execute 
WARNUNG: GRIZZLY0013: Exception during FilterChain execution 
java.lang.ClassCastException: sun.nio.ch.ServerSocketChannelImpl cannot be cast to java.nio.channels.SocketChannel 
    at org.glassfish.grizzly.nio.transport.TCPNIOUtils.writeSimpleBuffer(TCPNIOUtils.java:108) 
    at org.glassfish.grizzly.nio.transport.TCPNIOAsyncQueueWriter.write0(TCPNIOAsyncQueueWriter.java:126) 
    at org.glassfish.grizzly.nio.transport.TCPNIOAsyncQueueWriter.write0(TCPNIOAsyncQueueWriter.java:106) 
    at org.glassfish.grizzly.nio.AbstractNIOAsyncQueueWriter.write(AbstractNIOAsyncQueueWriter.java:260) 
    at org.glassfish.grizzly.nio.AbstractNIOAsyncQueueWriter.write(AbstractNIOAsyncQueueWriter.java:169) 
    at org.glassfish.grizzly.nio.AbstractNIOAsyncQueueWriter.write(AbstractNIOAsyncQueueWriter.java:71) 
    at org.glassfish.grizzly.nio.transport.TCPNIOTransportFilter.handleWrite(TCPNIOTransportFilter.java:126) 
    at org.glassfish.grizzly.filterchain.TransportFilter.handleWrite(TransportFilter.java:191) 
    at org.glassfish.grizzly.filterchain.ExecutorResolver$8.execute(ExecutorResolver.java:111) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112) 
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.write(DefaultFilterChain.java:413) 
    at org.glassfish.grizzly.nio.NIOConnection.write(NIOConnection.java:407) 
    at org.glassfish.grizzly.nio.NIOConnection.write(NIOConnection.java:395) 
    at net.vistahr.moose.server.connection.push.ServerConnection.writeTo(ServerConnection.java:58) 
    at net.vistahr.moose.server.connection.push.ServerConnection.broadcast(ServerConnection.java:46) 
    at net.vistahr.moose.server.service.auth.AuthService.startServerPush(AuthService.java:45) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:497) 
    at net.vistahr.moose.server.filter.DelegateServiceFilter.handleRead(DelegateServiceFilter.java:43) 
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133) 
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112) 
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77) 
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561) 
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112) 
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117) 
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56) 
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137) 
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565) 
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545) 
    at java.lang.Thread.run(Thread.java:745) 

隨着FilterChainContext是沒有問題的寫作消息發送到指定的客戶端，但只有每次發生異常時纔會發生連接。

TCPNIOServerConnection connection = getTransport().bind(host, port); 
getTransport().start(); 
connection(destinationAddress, pushMessage, null); 

是否有任何其他方式與客戶端（FilterChain之外）進行通信？

Answer 1

您無法寫入服務器端的TCPNIOServerConnection，只能寫入客戶端的TCPNIOConnection。 例如：

Connection c = transport.connect("www.google.com", "80"); 
c.write(....);