diff --git a/net/src/test/java/com/zfoo/net/core/json/client/JsonWebsocketClientTest.java b/net/src/test/java/com/zfoo/net/core/json/client/JsonWebsocketClientTest.java
index abb48e31..104f301e 100644
--- a/net/src/test/java/com/zfoo/net/core/json/client/JsonWebsocketClientTest.java
+++ b/net/src/test/java/com/zfoo/net/core/json/client/JsonWebsocketClientTest.java
@@ -48,15 +48,20 @@ public class JsonWebsocketClientTest {
         var client = new JsonWebsocketClient(HostAndPort.valueOf("127.0.0.1:9000"), webSocketClientProtocolConfig);
         var session = client.start();
 
+        // Websocket在建立tcp连接过后不能立刻通讯，还需要使用Http协议去握手升级成Websocket协议
+        // WebSocket握手是在客户端和服务器之间建立WebSocket连接的过程。它是通过HTTP/HTTPS协议完成的，后续将升级为WebSocket协议。
+        ThreadUtils.sleep(1000);
+
         var request = new JsonHelloRequest();
         request.setMessage("Hello, this is the json client!");
 
         for (int i = 0; i < 1000; i++) {
-            ThreadUtils.sleep(1000);
             NetContext.getRouter().send(session, request);
+
             ThreadUtils.sleep(1000);
             var response = NetContext.getRouter().syncAsk(session, request, JsonHelloResponse.class, null).packet();
             logger.info("sync json client receive [packet:{}] from server", JsonUtils.object2String(response));
+
             NetContext.getRouter().asyncAsk(session, request, JsonHelloResponse.class, null)
                     .whenComplete(new Consumer<JsonHelloResponse>() {
                         @Override
diff --git a/net/src/test/java/com/zfoo/net/core/websocket/client/WebsocketClientTest.java b/net/src/test/java/com/zfoo/net/core/websocket/client/WebsocketClientTest.java
index 1a7473d7..c4017d8b 100644
--- a/net/src/test/java/com/zfoo/net/core/websocket/client/WebsocketClientTest.java
+++ b/net/src/test/java/com/zfoo/net/core/websocket/client/WebsocketClientTest.java
@@ -48,19 +48,20 @@ public class WebsocketClientTest {
         var client = new WebsocketClient(HostAndPort.valueOf("127.0.0.1:9000"), webSocketClientProtocolConfig);
         var session = client.start();
 
+        // Websocket在建立tcp连接过后不能立刻通讯，还需要使用Http协议去握手升级成Websocket协议
+        // WebSocket握手是在客户端和服务器之间建立WebSocket连接的过程。它是通过HTTP/HTTPS协议完成的，后续将升级为WebSocket协议。
+        ThreadUtils.sleep(1000);
+
         var request = new WebsocketHelloRequest();
         request.setMessage("Hello, this is the websocket client!");
 
         for (int i = 0; i < 1000; i++) {
-            ThreadUtils.sleep(1000);
             NetContext.getRouter().send(session, request);
 
-
             ThreadUtils.sleep(1000);
             var response = NetContext.getRouter().syncAsk(session, request, WebsocketHelloResponse.class, null).packet();
             logger.info("sync client receive [packet:{}] from server", JsonUtils.object2String(response));
 
-
             NetContext.getRouter().asyncAsk(session, request, WebsocketHelloResponse.class, null)
                     .whenComplete(new Consumer<WebsocketHelloResponse>() {
                         @Override