diff --git a/3rdpart/ZLToolKit b/3rdpart/ZLToolKit
index 60eb96de..f4cae4bb 160000
--- a/3rdpart/ZLToolKit
+++ b/3rdpart/ZLToolKit
@@ -1 +1 @@
-Subproject commit 60eb96ded0493fb368dd907997211b6beffb6777
+Subproject commit f4cae4bbffe1e58392a0c7201f6d501a48141289
diff --git a/src/Http/HttpSession.cpp b/src/Http/HttpSession.cpp
index 7765dfaa..3e8ba4da 100644
--- a/src/Http/HttpSession.cpp
+++ b/src/Http/HttpSession.cpp
@@ -75,12 +75,7 @@ ssize_t HttpSession::onRecvHeader(const char *header,size_t len) {
 
     //默认后面数据不是content而是header
     ssize_t content_len = 0;
-    auto &fun = it->second;
-    try {
-        (this->*fun)(content_len);
-    }catch (exception &ex){
-        shutdown(SockException(Err_shutdown,ex.what()));
-    }
+    (this->*(it->second))(content_len);
 
     //清空解析器节省内存
     _parser.Clear();
diff --git a/src/Rtmp/RtmpSession.cpp b/src/Rtmp/RtmpSession.cpp
index 3f9b4355..d857c40c 100644
--- a/src/Rtmp/RtmpSession.cpp
+++ b/src/Rtmp/RtmpSession.cpp
@@ -60,12 +60,8 @@ void RtmpSession::onManager() {
 
 void RtmpSession::onRecv(const Buffer::Ptr &buf) {
     _ticker.resetTime();
-    try {
-        _total_bytes += buf->size();
-        onParseRtmp(buf->data(), buf->size());
-    } catch (exception &ex) {
-        shutdown(SockException(Err_shutdown, ex.what()));
-    }
+    _total_bytes += buf->size();
+    onParseRtmp(buf->data(), buf->size());
 }
 
 void RtmpSession::onCmd_connect(AMFDecoder &dec) {
diff --git a/src/Rtp/RtpSession.cpp b/src/Rtp/RtpSession.cpp
index 58b8c73f..2b02471f 100644
--- a/src/Rtp/RtpSession.cpp
+++ b/src/Rtp/RtpSession.cpp
@@ -45,17 +45,11 @@ RtpSession::~RtpSession() {
 }
 
 void RtpSession::onRecv(const Buffer::Ptr &data) {
-    try {
-        if (_is_udp) {
-            onRtpPacket(data->data(), data->size());
-            return;
-        }
-        RtpSplitter::input(data->data(), data->size());
-    } catch (SockException &ex) {
-        shutdown(ex);
-    } catch (std::exception &ex) {
-        shutdown(SockException(Err_other, ex.what()));
+    if (_is_udp) {
+        onRtpPacket(data->data(), data->size());
+        return;
     }
+    RtpSplitter::input(data->data(), data->size());
 }
 
 void RtpSession::onError(const SockException &err) {
diff --git a/src/Rtsp/RtspSession.cpp b/src/Rtsp/RtspSession.cpp
index 07b7607e..af1cd266 100644
--- a/src/Rtsp/RtspSession.cpp
+++ b/src/Rtsp/RtspSession.cpp
@@ -125,46 +125,36 @@ void RtspSession::onRecv(const Buffer::Ptr &buf) {
 void RtspSession::onWholeRtspPacket(Parser &parser) {
     string method = parser.Method(); //提取出请求命令字
     _cseq = atoi(parser["CSeq"].data());
-    if(_content_base.empty() && method != "GET"){
+    if (_content_base.empty() && method != "GET") {
         _content_base = parser.Url();
         _media_info.parse(parser.FullUrl());
         _media_info._schema = RTSP_SCHEMA;
     }
 
-    typedef void (RtspSession::*rtsp_request_handler)(const Parser &parser);
+    using rtsp_request_handler = void (RtspSession::*)(const Parser &parser);
     static unordered_map<string, rtsp_request_handler> s_cmd_functions;
-    static onceToken token( []() {
-        s_cmd_functions.emplace("OPTIONS",&RtspSession::handleReq_Options);
-        s_cmd_functions.emplace("DESCRIBE",&RtspSession::handleReq_Describe);
-        s_cmd_functions.emplace("ANNOUNCE",&RtspSession::handleReq_ANNOUNCE);
-        s_cmd_functions.emplace("RECORD",&RtspSession::handleReq_RECORD);
-        s_cmd_functions.emplace("SETUP",&RtspSession::handleReq_Setup);
-        s_cmd_functions.emplace("PLAY",&RtspSession::handleReq_Play);
-        s_cmd_functions.emplace("PAUSE",&RtspSession::handleReq_Pause);
-        s_cmd_functions.emplace("TEARDOWN",&RtspSession::handleReq_Teardown);
-        s_cmd_functions.emplace("GET",&RtspSession::handleReq_Get);
-        s_cmd_functions.emplace("POST",&RtspSession::handleReq_Post);
-        s_cmd_functions.emplace("SET_PARAMETER",&RtspSession::handleReq_SET_PARAMETER);
-        s_cmd_functions.emplace("GET_PARAMETER",&RtspSession::handleReq_SET_PARAMETER);
-    }, []() {});
+    static onceToken token([]() {
+        s_cmd_functions.emplace("OPTIONS", &RtspSession::handleReq_Options);
+        s_cmd_functions.emplace("DESCRIBE", &RtspSession::handleReq_Describe);
+        s_cmd_functions.emplace("ANNOUNCE", &RtspSession::handleReq_ANNOUNCE);
+        s_cmd_functions.emplace("RECORD", &RtspSession::handleReq_RECORD);
+        s_cmd_functions.emplace("SETUP", &RtspSession::handleReq_Setup);
+        s_cmd_functions.emplace("PLAY", &RtspSession::handleReq_Play);
+        s_cmd_functions.emplace("PAUSE", &RtspSession::handleReq_Pause);
+        s_cmd_functions.emplace("TEARDOWN", &RtspSession::handleReq_Teardown);
+        s_cmd_functions.emplace("GET", &RtspSession::handleReq_Get);
+        s_cmd_functions.emplace("POST", &RtspSession::handleReq_Post);
+        s_cmd_functions.emplace("SET_PARAMETER", &RtspSession::handleReq_SET_PARAMETER);
+        s_cmd_functions.emplace("GET_PARAMETER", &RtspSession::handleReq_SET_PARAMETER);
+    });
 
     auto it = s_cmd_functions.find(method);
     if (it == s_cmd_functions.end()) {
         sendRtspResponse("403 Forbidden");
-        shutdown(SockException(Err_shutdown,StrPrinter << "403 Forbidden:" << method));
-        return;
+        throw SockException(Err_shutdown, StrPrinter << "403 Forbidden:" << method);
     }
 
-    auto &fun = it->second;
-    try {
-        (this->*fun)(parser);
-    }catch (SockException &ex){
-        if(ex){
-            shutdown(ex);
-        }
-    }catch (exception &ex){
-        shutdown(SockException(Err_shutdown,ex.what()));
-    }
+    (this->*(it->second))(parser);
     parser.Clear();
 }
 
@@ -979,7 +969,13 @@ void RtspSession::startListenPeerUdpData(int track_idx) {
             if (!strongSelf) {
                 return;
             }
-            strongSelf->onRcvPeerUdpData(interleaved, buf, addr);
+            try {
+                strongSelf->onRcvPeerUdpData(interleaved, buf, addr);
+            } catch (SockException &ex) {
+                strongSelf->shutdown(ex);
+            } catch (std::exception &ex) {
+                strongSelf->shutdown(SockException(Err_other, ex.what()));
+            }
         });
         return true;
     };
diff --git a/webrtc/WebRtcSession.cpp b/webrtc/WebRtcSession.cpp
index 1ba5235e..1443269b 100644
--- a/webrtc/WebRtcSession.cpp
+++ b/webrtc/WebRtcSession.cpp
@@ -51,14 +51,6 @@ WebRtcSession::~WebRtcSession() {
 }
 
 void WebRtcSession::onRecv(const Buffer::Ptr &buffer) {
-    try {
-        onRecv_l(buffer);
-    } catch (std::exception &ex) {
-        shutdown(SockException(Err_shutdown, ex.what()));
-    }
-}
-
-void WebRtcSession::onRecv_l(const Buffer::Ptr &buffer) {
     if (_find_transport) {
         //只允许寻找一次transport
         _find_transport = false;
diff --git a/webrtc/WebRtcSession.h b/webrtc/WebRtcSession.h
index 02ec9d9a..eb141f25 100644
--- a/webrtc/WebRtcSession.h
+++ b/webrtc/WebRtcSession.h
@@ -30,9 +30,6 @@ public:
 
     static EventPoller::Ptr queryPoller(const Buffer::Ptr &buffer);
 
-private:
-    void onRecv_l(const Buffer::Ptr &);
-
 private:
     std::string _identifier;
     bool _find_transport = true;