diff --git a/app/firenze/client/main.go b/app/firenze/client/main.go
index 3f577aa1..9a0c572a 100644
--- a/app/firenze/client/main.go
+++ b/app/firenze/client/main.go
@@ -13,7 +13,7 @@ func main() {
 	interrupt := make(chan os.Signal, 1)
 	signal.Notify(interrupt, os.Interrupt)
 
-	u := url.URL{Scheme: "ws", Host: "192.168.0.105:7890", Path: "/ws"} // 使用公共的 echo WebSocket 服务器进行测试
+	u := url.URL{Scheme: "ws", Host: "127.0.0.1:7890", Path: "/ws", RawQuery: "b_mid=111&b_did=abc&b_dt=1&b_token=abcd&b_ch=a2"} // 使用公共的 echo WebSocket 服务器进行测试
 	//u := url.URL{Scheme: "ws", Host: "你的WebSocket服务器地址", Path: "/"} // 替换成你的服务器地址
 
 	log.Printf("connecting to %s", u.String())
diff --git a/app/firenze/cmd/firenze b/app/firenze/cmd/firenze
deleted file mode 100755
index bbcca77e..00000000
Binary files a/app/firenze/cmd/firenze and /dev/null differ
diff --git a/library/melody/hub.go b/library/melody/hub.go
index eb6d2173..293b095a 100644
--- a/library/melody/hub.go
+++ b/library/melody/hub.go
@@ -1,11 +1,12 @@
 package melody
 
 import (
-	"fmt"
+	"service/library/logger"
 	"sync"
 )
 
 type hub struct {
+	sidSessionMap  map[string]*Session
 	sessionMap     map[*Session]bool
 	midSessionsMap map[int64]map[*Session]struct{} // mid: map[session]{}
 	didSessionMap  map[string]*Session             // did: session
@@ -19,6 +20,7 @@ type hub struct {
 
 func newHub() *hub {
 	return &hub{
+		sidSessionMap:  make(map[string]*Session),
 		sessionMap:     make(map[*Session]bool),
 		midSessionsMap: make(map[int64]map[*Session]struct{}, 1024*20),
 		didSessionMap:  make(map[string]*Session),
@@ -45,6 +47,10 @@ loop:
 				h.midSessionsMap[s.Mid][s] = struct{}{}
 			}
 			h.rwmutex.Unlock()
+
+			for mid, sMap := range h.midSessionsMap {
+				logger.Info("reg, mid: %v, len(s): %v", mid, len(sMap))
+			}
 		case s := <-h.unregister:
 			if _, ok := h.sessionMap[s]; ok {
 				h.rwmutex.Lock()
@@ -57,6 +63,10 @@ loop:
 					}
 				}
 				h.rwmutex.Unlock()
+
+				for mid, sMap := range h.midSessionsMap {
+					logger.Info("unreg, mid: %v, len(s): %v", mid, len(sMap))
+				}
 			}
 		case m := <-h.broadcast:
 			h.rwmutex.RLock()
@@ -108,34 +118,13 @@ func (h *hub) all() []*Session {
 	return s
 }
 
-func (h *hub) getSessionBySid(sid string) *Session {
-	return h.sidSessionMap[sid]
-}
-
-func (h *hub) getSessionByMid(mid int64) *Session {
-	return h.midSessionsMap[mid]
-}
-
-func (h *hub) mustGetSession(sid string, mid int64) (*Session, error) {
-	sessSid := h.getSessionBySid(sid)
-	if sessSid != nil {
-		return sessSid, nil
+func (h *hub) updateSession(s *Session) {
+	if len(s.Sid) > 0 {
+		h.rwmutex.Lock()
+		h.sidSessionMap[s.Sid] = s
+		h.rwmutex.Unlock()
 	}
-	sessMid := h.getSessionByMid(mid)
-	if sessMid != nil {
-		return sessMid, nil
+	for i, v := range h.sidSessionMap {
+		logger.Info("%d, %v", i, v.Sid)
 	}
-	return nil, fmt.Errorf("get session fail")
-}
-
-func (h *hub) midSessions(mid int64) ([]*Session, error) {
-	sids := h.midSidsMap[mid]
-	if len(sids) > 0 {
-		sessions := make([]*Session, 0)
-		for sid := range sids {
-			sessions = append(sessions, h.sidSessionMap[sid])
-		}
-		return sessions, nil
-	}
-	return nil, fmt.Errorf("get mid sessionMap fail")
 }
diff --git a/library/melody/melody.go b/library/melody/melody.go
index 24c01492..d0adb5d2 100644
--- a/library/melody/melody.go
+++ b/library/melody/melody.go
@@ -414,10 +414,10 @@ func (m *Melody) LiveMids() []int64 {
 }
 
 func (m *Melody) SendBizMsg(req *firenzeproto.SendBizMsgParam) error {
-	sess, err := m.hub.mustGetSession(req.Sid, req.Mid)
-	if err != nil {
-		logger.Error("mustGetSession fail, req: %v, err: %v", util.ToJson(req), err)
-		return err
+	sessions := m.hub.midSessionsMap[req.Mid]
+	if len(sessions) <= 0 {
+		logger.Warn("no sessions for mid: %v", req.Mid)
+		return fmt.Errorf("no sessions")
 	}
 
 	msg := &CMsg{
@@ -426,10 +426,11 @@ func (m *Melody) SendBizMsg(req *firenzeproto.SendBizMsgParam) error {
 		Msg: req.Msg,
 	}
 	bs, _ := json.Marshal(msg)
-	err = sess.WriteBinary(bs)
-	if err != nil {
-		logger.Error("WriteBinary fail, req: %v, err: %v", util.ToJson(req), err)
-		return err
+	for sess := range sessions {
+		_err := sess.WriteBinary(bs)
+		if _err != nil {
+			logger.Error("WriteBinary fail, req: %v, err: %v", util.ToJson(req), _err)
+		}
 	}
 	logger.Info("SendBizMsg success, req: %v", util.ToJson(req))
 	return nil
diff --git a/library/melody/session.go b/library/melody/session.go
index 5861af94..e0b08efb 100644
--- a/library/melody/session.go
+++ b/library/melody/session.go
@@ -183,7 +183,7 @@ func (s *Session) readPump() {
 				logger.Error("failed to init conn: %s - %s", s.String(), err.Error())
 				break
 			}
-			s.melody.hub.register <- s
+			s.melody.hub.updateSession(s)
 		default:
 			//	TODO: 处理其他类型消息
 		}