diff --git a/src/org/redkale/net/http/Rest.java b/src/org/redkale/net/http/Rest.java
index 5f2bef9b6..a46fe55fb 100644
--- a/src/org/redkale/net/http/Rest.java
+++ b/src/org/redkale/net/http/Rest.java
@@ -424,6 +424,21 @@ public final class Rest {
                 mv.visitMaxs(1, 1);
                 mv.visitEnd();
             }
+            { //getNames
+                mv = new AsmMethodVisitor(cw2.visitMethod(ACC_PUBLIC, "getNames", "()[Ljava/lang/String;", null, null));
+                pushInt(mv, paramap.size());
+                mv.visitTypeInsn(ANEWARRAY, "java/lang/String");
+                int index = -1;
+                for (Map.Entry<String, Parameter> en : paramap.entrySet()) {
+                    mv.visitInsn(DUP);
+                    mv.visitInsn(++index);
+                    mv.visitLdcInsn(en.getKey());
+                    mv.visitInsn(AASTORE);
+                }
+                mv.visitInsn(ARETURN);
+                mv.visitMaxs(paramap.size() + 2, 1);
+                mv.visitEnd();
+            }
             { //getValue
                 mv = new AsmMethodVisitor(cw2.visitMethod(ACC_PUBLIC, "getValue", "(Ljava/lang/String;)Ljava/lang/Object;", "<T:Ljava/lang/Object;>(Ljava/lang/String;)TT;", null));
                 for (Map.Entry<String, Parameter> en : paramap.entrySet()) {
diff --git a/src/org/redkale/net/http/WebSocketParam.java b/src/org/redkale/net/http/WebSocketParam.java
index 6cd807289..927bc6d53 100644
--- a/src/org/redkale/net/http/WebSocketParam.java
+++ b/src/org/redkale/net/http/WebSocketParam.java
@@ -16,4 +16,6 @@ package org.redkale.net.http;
 public interface WebSocketParam {
 
     public <T> T getValue(String name);
+    
+    public String[] getNames();
 }
diff --git a/src/org/redkale/net/http/WebSocketServlet.java b/src/org/redkale/net/http/WebSocketServlet.java
index 78924c12e..1775a8ea1 100644
--- a/src/org/redkale/net/http/WebSocketServlet.java
+++ b/src/org/redkale/net/http/WebSocketServlet.java
@@ -219,7 +219,7 @@ public abstract class WebSocketServlet extends HttpServlet implements Resourcabl
                                 temprunner = null;
                                 webSocket._userid = userid;
                                 if (single && !anyuser) {
-                                    WebSocketServlet.this.node.existsWebSocket(userid).whenComplete((rs, ex) -> {
+                                    WebSocketServlet.this.node.existsWebSocket(userid).whenComplete((rs, nex) -> {
                                         if (rs) webSocket.onSingleRepeatConnect();
                                         WebSocketServlet.this.node.localEngine.add(webSocket);
                                         WebSocketRunner runner = new WebSocketRunner(context, webSocket, restMessageConsumer, response.removeChannel());
diff --git a/test/org/redkale/test/wsdync/_DyncChatWebSocketServlet.java b/test/org/redkale/test/wsdync/_DyncChatWebSocketServlet.java
index d86568975..3bfe24c36 100644
--- a/test/org/redkale/test/wsdync/_DyncChatWebSocketServlet.java
+++ b/test/org/redkale/test/wsdync/_DyncChatWebSocketServlet.java
@@ -70,6 +70,11 @@ public final class _DyncChatWebSocketServlet extends WebSocketServlet {
         @ConvertDisabled
         public _DyncChatWebSocket _redkale_websocket;
 
+        @Override
+        public String[] getNames() {
+            return new String[]{"message", "extmap"};
+        }
+
         @Override
         public <T> T getValue(String name) {
             if ("message".equals(name)) return (T) message;
@@ -100,6 +105,11 @@ public final class _DyncChatWebSocketServlet extends WebSocketServlet {
         @ConvertDisabled
         public _DyncChatWebSocket _redkale_websocket;
 
+        @Override
+        public String[] getNames() {
+            return new String[]{"roomid"};
+        }
+
         @Override
         public <T> T getValue(String name) {
             if ("roomid".equals(name)) return (T) (Integer) roomid;