diff --git a/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/http/client/HttpClientHandler.java b/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/http/client/HttpClientHandler.java
index 436f5be..6195476 100644
--- a/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/http/client/HttpClientHandler.java
+++ b/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/http/client/HttpClientHandler.java
@@ -6,7 +6,6 @@
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelInboundHandlerAdapter;
-import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 /**
@@ -14,7 +13,6 @@
  * @date 2018/7/19
  */
 @Slf4j
-@AllArgsConstructor
 @ChannelHandler.Sharable
 public class HttpClientHandler extends ChannelInboundHandlerAdapter {
     private Client client;
@@ -22,6 +20,11 @@ public class HttpClientHandler extends ChannelInboundHandlerAdapter {
 
     private static HttpClientHandler INSTANCE;
 
+    private HttpClientHandler(Client client, ClientMessageConverter converter) {
+        this.client = client;
+        this.converter = converter;
+    }
+
     public synchronized static void init(Client client, ClientMessageConverter converter) {
         if (INSTANCE == null) {
             INSTANCE = new HttpClientHandler(client, converter);
diff --git a/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/http/server/HttpServerHandler.java b/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/http/server/HttpServerHandler.java
index 1435db9..76240b5 100644
--- a/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/http/server/HttpServerHandler.java
+++ b/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/http/server/HttpServerHandler.java
@@ -7,7 +7,6 @@
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.SimpleChannelInboundHandler;
 import io.netty.handler.codec.http.FullHttpRequest;
-import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 /**
@@ -15,7 +14,6 @@
  * @date 2018/7/19
  */
 @Slf4j
-@AllArgsConstructor
 @ChannelHandler.Sharable
 public class HttpServerHandler extends SimpleChannelInboundHandler<FullHttpRequest> {
     private Server server;
@@ -23,6 +21,11 @@ public class HttpServerHandler extends SimpleChannelInboundHandler<FullHttpReque
     
     private static HttpServerHandler INSTANCE;
 
+    private HttpServerHandler(Server server, ServerMessageConverter converter) {
+        this.server = server;
+        this.converter = converter;
+    }
+
     public synchronized static void init(Server server,ServerMessageConverter converter) {
         if (INSTANCE == null) {
             INSTANCE = new HttpServerHandler(server,converter);
diff --git a/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/toy/client/ToyClientHandler.java b/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/toy/client/ToyClientHandler.java
index f46f814..f63e8fe 100644
--- a/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/toy/client/ToyClientHandler.java
+++ b/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/toy/client/ToyClientHandler.java
@@ -6,7 +6,6 @@
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.SimpleChannelInboundHandler;
 import io.netty.handler.timeout.IdleStateEvent;
-import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 
@@ -15,11 +14,12 @@
  */
 @Slf4j
 @ChannelHandler.Sharable
-@AllArgsConstructor
 public class ToyClientHandler extends SimpleChannelInboundHandler<Message> {
     private Client client;
-
-
+    
+    private ToyClientHandler(Client client) {
+        this.client = client;
+    }
     private static ToyClientHandler INSTANCE;
 
     public synchronized static void init(Client client) {
diff --git a/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/toy/server/ToyServerHandler.java b/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/toy/server/ToyServerHandler.java
index a7fcbdc..2f1e30d 100644
--- a/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/toy/server/ToyServerHandler.java
+++ b/toy-rpc-core/src/main/java/com/sinjinsong/toy/transport/toy/server/ToyServerHandler.java
@@ -7,7 +7,6 @@
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.SimpleChannelInboundHandler;
 import io.netty.handler.timeout.IdleStateEvent;
-import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
 import static com.sinjinsong.toy.transport.api.domain.Message.PING;
@@ -17,12 +16,15 @@
  * Created by SinjinSong on 2017/7/29.
  * 实际的业务处理器，单例
  */
-@AllArgsConstructor
 @Slf4j
 @ChannelHandler.Sharable
 public class ToyServerHandler extends SimpleChannelInboundHandler<Message> {
     private static ToyServerHandler INSTANCE;
-    
+
+    private ToyServerHandler(Server server) {
+        this.server = server;
+    }
+
     public synchronized static void init(Server server) {
         if(INSTANCE == null) {
             INSTANCE = new ToyServerHandler(server);