diff --git a/src/main/java/org/redkale/net/AsyncConnection.java b/src/main/java/org/redkale/net/AsyncConnection.java
index 8806c0653..da1ff1076 100644
--- a/src/main/java/org/redkale/net/AsyncConnection.java
+++ b/src/main/java/org/redkale/net/AsyncConnection.java
@@ -269,6 +269,9 @@ public abstract class AsyncConnection implements Channel, AutoCloseable {
     public abstract <A> void writeInLock(
             ByteBuffer[] srcs, int offset, int length, A attachment, CompletionHandler<Integer, ? super A> handler);
 
+    public abstract <A> void writeInLock(
+            Supplier<ByteBuffer> supplier, A attachment, CompletionHandler<Integer, ? super A> handler);
+
     protected void startRead(CompletionHandler<Integer, ByteBuffer> handler) {
         read(handler);
     }
@@ -305,8 +308,16 @@ public abstract class AsyncConnection implements Channel, AutoCloseable {
         }
     }
 
+    public final void write(ByteTuple array, CompletionHandler<Integer, Void> handler) {
+        write(array.content(), array.offset(), array.length(), (byte[]) null, 0, 0, handler);
+    }
+
+    public final void write(ByteBuffer buffer, CompletionHandler<Integer, Void> handler) {
+        write(buffer, null, handler);
+    }
+
     // src写完才会回调
-    public final <A> void write(ByteBuffer src, A attachment, CompletionHandler<Integer, ? super A> handler) {
+    final <A> void write(ByteBuffer src, A attachment, CompletionHandler<Integer, ? super A> handler) {
         if (sslEngine == null) {
             writeImpl(src, attachment, handler);
         } else {
@@ -325,7 +336,7 @@ public abstract class AsyncConnection implements Channel, AutoCloseable {
         }
     }
 
-    public final <A> void write(
+    final <A> void write(
             ByteBuffer[] srcs, int offset, int length, A attachment, CompletionHandler<Integer, ? super A> handler) {
         if (sslEngine == null) {
             writeImpl(srcs, offset, length, attachment, handler);
@@ -345,31 +356,19 @@ public abstract class AsyncConnection implements Channel, AutoCloseable {
         }
     }
 
-    public final <A> void write(ByteBuffer[] srcs, A attachment, CompletionHandler<Integer, ? super A> handler) {
+    final <A> void write(ByteBuffer[] srcs, A attachment, CompletionHandler<Integer, ? super A> handler) {
         write(srcs, 0, srcs.length, attachment, handler);
     }
 
-    public final void write(byte[] bytes, CompletionHandler<Integer, Void> handler) {
+    final void write(byte[] bytes, CompletionHandler<Integer, Void> handler) {
         write(bytes, 0, bytes.length, (byte[]) null, 0, 0, handler);
     }
 
-    public final <A> void write(byte[] bytes, A attachment, CompletionHandler<Integer, ? super A> handler) {
-        write(bytes, 0, bytes.length, (byte[]) null, 0, 0, attachment, handler);
-    }
-
-    public final void write(byte[] bytes, int offset, int length, CompletionHandler<Integer, Void> handler) {
+    final void write(byte[] bytes, int offset, int length, CompletionHandler<Integer, Void> handler) {
         write(bytes, offset, length, (byte[]) null, 0, 0, handler);
     }
 
-    public final void write(ByteTuple array, CompletionHandler<Integer, Void> handler) {
-        write(array.content(), array.offset(), array.length(), (byte[]) null, 0, 0, handler);
-    }
-
-    public final <A> void write(ByteTuple array, A attachment, CompletionHandler<Integer, ? super A> handler) {
-        write(array.content(), array.offset(), array.length(), (byte[]) null, 0, 0, attachment, handler);
-    }
-
-    public final void write(ByteTuple header, ByteTuple body, CompletionHandler<Integer, Void> handler) {
+    final void write(ByteTuple header, ByteTuple body, CompletionHandler<Integer, Void> handler) {
         write(
                 header.content(),
                 header.offset(),
@@ -380,7 +379,7 @@ public abstract class AsyncConnection implements Channel, AutoCloseable {
                 handler);
     }
 
-    public void write(
+    void write(
             byte[] headerContent,
             int headerOffset,
             int headerLength,
@@ -391,7 +390,7 @@ public abstract class AsyncConnection implements Channel, AutoCloseable {
         write(headerContent, headerOffset, headerLength, bodyContent, bodyOffset, bodyLength, null, handler);
     }
 
-    public void write(
+    void write(
             byte[] headerContent,
             int headerOffset,
             int headerLength,
diff --git a/src/main/java/org/redkale/net/AsyncNioConnection.java b/src/main/java/org/redkale/net/AsyncNioConnection.java
index 5d5c752c0..25e1d4189 100644
--- a/src/main/java/org/redkale/net/AsyncNioConnection.java
+++ b/src/main/java/org/redkale/net/AsyncNioConnection.java
@@ -12,6 +12,7 @@ import java.nio.channels.*;
 import java.util.*;
 import java.util.concurrent.ConcurrentLinkedDeque;
 import java.util.function.Consumer;
+import java.util.function.Supplier;
 import javax.net.ssl.SSLContext;
 import org.redkale.util.ByteBufferWriter;
 
@@ -404,6 +405,45 @@ abstract class AsyncNioConnection extends AsyncConnection {
         }
     }
 
+    @Override
+    public <A> void writeInLock(
+            Supplier<ByteBuffer> supplier, A attachment, CompletionHandler<Integer, ? super A> handler) {
+        int total = 0;
+        Exception t = null;
+        lockWrite();
+        try {
+            ByteBuffer buffer = supplier.get();
+            if (buffer == null || !buffer.hasRemaining()) {
+                handler.completed(total, attachment);
+                return;
+            }
+            if (this.writePending) {
+                handler.failed(new WritePendingException(), attachment);
+                return;
+            }
+            this.writePending = true;
+            while (buffer.hasRemaining()) { // 必须要将buffer写完为止
+                int c = implWrite(buffer);
+                if (c < 0) {
+                    t = new ClosedChannelException();
+                    total = c;
+                    break;
+                }
+                total += c;
+            }
+        } catch (Exception e) {
+            t = e;
+        } finally {
+            this.writePending = false;
+            unlockWrite();
+        }
+        if (t != null) {
+            handler.failed(t, attachment);
+        } else {
+            handler.completed(total, attachment);
+        }
+    }
+
     public void doWrite() {
         try {
             this.writeTime = System.currentTimeMillis();
diff --git a/src/main/java/org/redkale/net/client/ClientConnection.java b/src/main/java/org/redkale/net/client/ClientConnection.java
index 631fd2017..bbbcc890e 100644
--- a/src/main/java/org/redkale/net/client/ClientConnection.java
+++ b/src/main/java/org/redkale/net/client/ClientConnection.java
@@ -43,15 +43,15 @@ public abstract class ClientConnection<R extends ClientRequest, P extends Client
 
     protected final AsyncConnection channel;
 
-    protected final CompletionHandler<Integer, Object> writeHandler = new CompletionHandler<Integer, Object>() {
+    protected final CompletionHandler<Integer, Void> writeHandler = new CompletionHandler<Integer, Void>() {
 
         @Override
-        public void completed(Integer result, Object attachment) {
+        public void completed(Integer result, Void attachment) {
             // do nothing
         }
 
         @Override
-        public void failed(Throwable exc, Object attachment) {
+        public void failed(Throwable exc, Void attachment) {
             dispose(exc);
         }
     };
@@ -181,9 +181,9 @@ public abstract class ClientConnection<R extends ClientRequest, P extends Client
                 writeBuffer.clear();
                 writeBuffer.put(writeArray.content(), 0, writeArray.length());
                 writeBuffer.flip();
-                channel.write(writeBuffer, this, writeHandler);
+                channel.write(writeBuffer, writeHandler);
             } else {
-                channel.write(writeArray, this, writeHandler);
+                channel.write(writeArray, writeHandler);
             }
         }
     }
diff --git a/src/main/java/org/redkale/net/http/HttpResponse.java b/src/main/java/org/redkale/net/http/HttpResponse.java
index c6927cd3e..b5e139c31 100644
--- a/src/main/java/org/redkale/net/http/HttpResponse.java
+++ b/src/main/java/org/redkale/net/http/HttpResponse.java
@@ -1366,7 +1366,7 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
     private void finishFile(ByteArray headerData, File file, long offset, long length) throws IOException {
         // this.channel.write(headerData,  new TransferFileHandler(file, offset, length));
         final Logger logger = context.getLogger();
-        this.channel.write(headerData, new CompletionHandler<Integer, Void>() {
+        this.channel.writeInIOThread(headerData, new CompletionHandler<Integer, Void>() {
 
             FileChannel fileChannel;
 
@@ -1413,7 +1413,7 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
                     } else {
                         sends += len;
                     }
-                    channel.write(buffer, attachment, this);
+                    channel.writeInIOThread(buffer, attachment, this);
                 } catch (Exception e) {
                     if (fileChannel != null) {
                         try {