diff --git a/src/org/redkale/net/AsyncConnection.java b/src/org/redkale/net/AsyncConnection.java
index b13a7ea20..efaf84be7 100644
--- a/src/org/redkale/net/AsyncConnection.java
+++ b/src/org/redkale/net/AsyncConnection.java
@@ -219,6 +219,149 @@ public abstract class AsyncConnection implements AsynchronousByteChannel, AutoCl
         return future;
     }
 
+    private static class NIOTCPAsyncConnection extends AsyncConnection {
+
+        private int readTimeoutSeconds;
+
+        private int writeTimeoutSeconds;
+
+        private final SocketChannel channel;
+
+        private final SocketAddress remoteAddress;
+
+        public NIOTCPAsyncConnection(final SocketChannel ch, SocketAddress addr,
+            final int readTimeoutSeconds0, final int writeTimeoutSeconds0,
+            final AtomicLong livingCounter, final AtomicLong closedCounter) {
+            this.channel = ch;
+            this.readTimeoutSeconds = readTimeoutSeconds0;
+            this.writeTimeoutSeconds = writeTimeoutSeconds0;
+            this.remoteAddress = addr;
+            this.livingCounter = livingCounter;
+            this.closedCounter = closedCounter;
+        }
+
+        @Override
+        public void setReadTimeoutSeconds(int readTimeoutSeconds) {
+            this.readTimeoutSeconds = readTimeoutSeconds;
+        }
+
+        @Override
+        public void setWriteTimeoutSeconds(int writeTimeoutSeconds) {
+            this.writeTimeoutSeconds = writeTimeoutSeconds;
+        }
+
+        @Override
+        public int getReadTimeoutSeconds() {
+            return this.readTimeoutSeconds;
+        }
+
+        @Override
+        public int getWriteTimeoutSeconds() {
+            return this.writeTimeoutSeconds;
+        }
+
+        @Override
+        public final SocketAddress getRemoteAddress() {
+            return remoteAddress;
+        }
+
+        @Override
+        public SocketAddress getLocalAddress() {
+            try {
+                return channel.getLocalAddress();
+            } catch (IOException e) {
+                return null;
+            }
+        }
+
+        @Override
+        public <A> void write(ByteBuffer[] srcs, int offset, int length, A attachment, CompletionHandler<Integer, ? super A> handler) {
+            try {
+                int rs = (int) channel.write(srcs, offset, length);
+                this.writetime = System.currentTimeMillis();
+                if (handler != null) handler.completed(rs, attachment);
+            } catch (Exception e) {
+                if (handler != null) handler.failed(e, attachment);
+            }
+        }
+
+        @Override
+        public <A> void read(ByteBuffer dst, A attachment, CompletionHandler<Integer, ? super A> handler) {
+            try {
+                int rs = channel.read(dst);
+                this.readtime = System.currentTimeMillis();
+                if (handler != null) handler.completed(rs, attachment);
+            } catch (IOException e) {
+                if (handler != null) handler.failed(e, attachment);
+            }
+        }
+
+        @Override
+        public <A> void read(ByteBuffer dst, long timeout, TimeUnit unit, A attachment, CompletionHandler<Integer, ? super A> handler) {
+            read(dst, attachment, handler);
+        }
+
+        @Override
+        public Future<Integer> read(ByteBuffer dst) {
+            try {
+                int rs = channel.read(dst);
+                this.readtime = System.currentTimeMillis();
+                return CompletableFuture.completedFuture(rs);
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+        }
+
+        @Override
+        public <A> void write(ByteBuffer src, A attachment, CompletionHandler<Integer, ? super A> handler) {
+            try {
+                int rs = channel.write(src);
+                this.writetime = System.currentTimeMillis();
+                if (handler != null) handler.completed(rs, attachment);
+            } catch (IOException e) {
+                if (handler != null) handler.failed(e, attachment);
+            }
+        }
+
+        @Override
+        public Future<Integer> write(ByteBuffer src) {
+            try {
+                int rs = channel.read(src);
+                this.writetime = System.currentTimeMillis();
+                return CompletableFuture.completedFuture(rs);
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+        }
+
+        @Override
+        public final void close() throws IOException {
+            super.close();
+            channel.close();
+        }
+
+        @Override
+        public final boolean isOpen() {
+            return channel.isOpen();
+        }
+
+        @Override
+        public final boolean isTCP() {
+            return true;
+        }
+    }
+
+    public static AsyncConnection create(final SocketChannel ch, SocketAddress addr,
+        final int readTimeoutSeconds0, final int writeTimeoutSeconds0) {
+        return new NIOTCPAsyncConnection(ch, addr, readTimeoutSeconds0, writeTimeoutSeconds0, null, null);
+    }
+
+    public static AsyncConnection create(final SocketChannel ch, SocketAddress addr,
+        final int readTimeoutSeconds0, final int writeTimeoutSeconds0,
+        final AtomicLong livingCounter, final AtomicLong closedCounter) {
+        return new NIOTCPAsyncConnection(ch, addr, readTimeoutSeconds0, writeTimeoutSeconds0, livingCounter, closedCounter);
+    }
+
     private static class BIOUDPAsyncConnection extends AsyncConnection {
 
         private int readTimeoutSeconds;
@@ -240,7 +383,7 @@ public abstract class AsyncConnection implements AsynchronousByteChannel, AutoCl
             this.writeTimeoutSeconds = writeTimeoutSeconds0;
             this.remoteAddress = addr;
             this.livingCounter = livingCounter;
-            this.closedCounter = this.closedCounter;
+            this.closedCounter = closedCounter;
         }
 
         @Override