diff --git a/main.go b/main.go
deleted file mode 100644
index 866b688..0000000
--- a/main.go
+++ /dev/null
@@ -1,14 +0,0 @@
-package main
-
-import "github.com/kercylan98/minotaur/server"
-
-// 无意义的测试main入口
-func main() {
-	srv := server.New(server.NetworkWebsocket, server.WithMessageDiversion(3, 2))
-	srv.RegConnectionReceiveWebsocketPacketEvent(func(srv *server.Server, conn *server.Conn, packet []byte, messageType int) {
-		conn.Write(packet, messageType)
-	})
-	if err := srv.Run(":8999"); err != nil {
-		panic(err)
-	}
-}
diff --git a/server/conn.go b/server/conn.go
index 6c33798..f656dfe 100644
--- a/server/conn.go
+++ b/server/conn.go
@@ -177,7 +177,7 @@ func (slf *Conn) writeLoop() {
 			return &connPacket{}
 		}, func(data *connPacket) {
 			data.packet = nil
-			data.websocketMessageType = -1
+			data.websocketMessageType = 0
 		},
 	)
 	defer func() {
@@ -209,7 +209,7 @@ func (slf *Conn) writeLoop() {
 			}
 			var err error
 			if slf.IsWebsocket() {
-				if data.websocketMessageType == -1 {
+				if data.websocketMessageType <= 0 {
 					data.websocketMessageType = slf.server.websocketWriteMessageType
 				}
 				err = slf.ws.WriteMessage(data.websocketMessageType, data.packet)
diff --git a/server/server.go b/server/server.go
index 25de728..ac5eac0 100644
--- a/server/server.go
+++ b/server/server.go
@@ -263,9 +263,9 @@ func (slf *Server) Run(addr string) error {
 					if err := ws.SetReadDeadline(time.Now().Add(time.Second * 30)); err != nil {
 						panic(err)
 					}
-					messageType, packet, err := ws.ReadMessage()
-					if err != nil {
-						panic(err)
+					messageType, packet, readErr := ws.ReadMessage()
+					if readErr != nil {
+						panic(readErr)
 					}
 					if len(slf.supportMessageTypes) > 0 && !slf.supportMessageTypes[messageType] {
 						panic(ErrWebsocketIllegalMessageType)
@@ -383,6 +383,7 @@ func (slf *Server) Shutdown(err error) {
 		log.Error("Server", zap.Any("network", slf.network), zap.String("listen", slf.addr),
 			zap.String("action", "shutdown"), zap.String("state", "exception"), zap.Error(err))
 		slf.closeChannel <- struct{}{}
+		panic(err)
 	} else {
 		log.Info("Server", zap.Any("network", slf.network), zap.String("listen", slf.addr),
 			zap.String("action", "shutdown"), zap.String("state", "normal"))