diff --git a/broker/src/main/java/com/xiaoleilu/loServer/LoServer.java b/broker/src/main/java/com/xiaoleilu/loServer/LoServer.java
index 0d3145a9..ad29eca7 100755
--- a/broker/src/main/java/com/xiaoleilu/loServer/LoServer.java
+++ b/broker/src/main/java/com/xiaoleilu/loServer/LoServer.java
@@ -21,6 +21,7 @@ import io.netty.handler.codec.http.HttpResponseEncoder;
 import io.netty.handler.stream.ChunkedWriteHandler;
 import com.xiaoleilu.loServer.action.ClassUtil;
 import org.slf4j.LoggerFactory;
+import win.liyufan.im.Utility;
 
 import java.io.IOException;
 
@@ -141,6 +142,7 @@ public class LoServer {
             }
         } catch (IOException e) {
             e.printStackTrace();
+            Utility.printExecption(Logger, e);
         } catch (ClassNotFoundException e) {
             e.printStackTrace();
         }
diff --git a/broker/src/main/java/com/xiaoleilu/loServer/action/admin/AdminAction.java b/broker/src/main/java/com/xiaoleilu/loServer/action/admin/AdminAction.java
index 79977868..18ea3f90 100644
--- a/broker/src/main/java/com/xiaoleilu/loServer/action/admin/AdminAction.java
+++ b/broker/src/main/java/com/xiaoleilu/loServer/action/admin/AdminAction.java
@@ -9,6 +9,7 @@
 package com.xiaoleilu.loServer.action.admin;
 
 import com.google.gson.Gson;
+import com.xiaoleilu.loServer.LoServer;
 import com.xiaoleilu.loServer.RestResult;
 import com.xiaoleilu.loServer.action.Action;
 import com.xiaoleilu.loServer.handler.Request;
@@ -17,9 +18,12 @@ import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.util.internal.StringUtil;
 import org.apache.commons.codec.digest.DigestUtils;
 import cn.wildfirechat.common.ErrorCode;
+import org.slf4j.LoggerFactory;
 import win.liyufan.im.RateLimiter;
+import win.liyufan.im.Utility;
 
 abstract public class AdminAction extends Action {
+    private static final org.slf4j.Logger LOG = LoggerFactory.getLogger(AdminAction.class);
     private static String SECRET_KEY = "123456";
     private static boolean NO_CHECK_TIME = false;
     private final RateLimiter mLimitCounter = new RateLimiter(10, 500);
@@ -52,6 +56,7 @@ abstract public class AdminAction extends Action {
             ts = Long.parseLong(timestamp);
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
             return ErrorCode.INVALID_PARAMETER;
         }
 
diff --git a/broker/src/main/java/com/xiaoleilu/loServer/action/admin/CreateRobotAction.java b/broker/src/main/java/com/xiaoleilu/loServer/action/admin/CreateRobotAction.java
index 1b7ed360..827185b7 100755
--- a/broker/src/main/java/com/xiaoleilu/loServer/action/admin/CreateRobotAction.java
+++ b/broker/src/main/java/com/xiaoleilu/loServer/action/admin/CreateRobotAction.java
@@ -22,11 +22,15 @@ import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.util.internal.StringUtil;
 import cn.wildfirechat.common.ErrorCode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import win.liyufan.im.UUIDGenerator;
+import win.liyufan.im.Utility;
 
 @Route(APIPath.Create_Robot)
 @HttpMethod("POST")
 public class CreateRobotAction extends AdminAction {
+    private static final Logger LOG = LoggerFactory.getLogger(CreateRobotAction.class);
 
     @Override
     public boolean isTransactionAction() {
@@ -59,6 +63,7 @@ public class CreateRobotAction extends AdminAction {
                     messagesStore.addUserInfo(newUser, inputCreateRobot.getPassword());
                 } catch (Exception e) {
                     e.printStackTrace();
+                    Utility.printExecption(LOG, e);
                     response.setStatus(HttpResponseStatus.OK);
                     RestResult result = RestResult.resultOf(ErrorCode.ERROR_CODE_SERVER_ERROR, e.getMessage());
                     response.setContent(new Gson().toJson(result));
diff --git a/broker/src/main/java/com/xiaoleilu/loServer/action/admin/CreateUserAction.java b/broker/src/main/java/com/xiaoleilu/loServer/action/admin/CreateUserAction.java
index a288d641..a9860b88 100755
--- a/broker/src/main/java/com/xiaoleilu/loServer/action/admin/CreateUserAction.java
+++ b/broker/src/main/java/com/xiaoleilu/loServer/action/admin/CreateUserAction.java
@@ -22,11 +22,16 @@ import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.util.internal.StringUtil;
 import cn.wildfirechat.common.ErrorCode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import win.liyufan.im.DBUtil;
 import win.liyufan.im.UUIDGenerator;
+import win.liyufan.im.Utility;
 
 @Route(APIPath.Create_User)
 @HttpMethod("POST")
 public class CreateUserAction extends AdminAction {
+    private static final Logger LOG = LoggerFactory.getLogger(CreateUserAction.class);
 
     @Override
     public boolean isTransactionAction() {
@@ -80,6 +85,7 @@ public class CreateUserAction extends AdminAction {
                     messagesStore.addUserInfo(newUserBuilder.build(), inputCreateUser.getPassword());
                 } catch (Exception e) {
                     e.printStackTrace();
+                    Utility.printExecption(LOG, e);
                     response.setStatus(HttpResponseStatus.OK);
                     RestResult result = RestResult.resultOf(ErrorCode.ERROR_CODE_SERVER_ERROR, e.getMessage());
                     response.setContent(new Gson().toJson(result));
diff --git a/broker/src/main/java/com/xiaoleilu/loServer/action/channel/ChannelAction.java b/broker/src/main/java/com/xiaoleilu/loServer/action/channel/ChannelAction.java
index 477738be..043602ee 100644
--- a/broker/src/main/java/com/xiaoleilu/loServer/action/channel/ChannelAction.java
+++ b/broker/src/main/java/com/xiaoleilu/loServer/action/channel/ChannelAction.java
@@ -12,6 +12,7 @@ import cn.wildfirechat.proto.WFCMessage;
 import com.google.gson.Gson;
 import com.xiaoleilu.loServer.RestResult;
 import com.xiaoleilu.loServer.action.Action;
+import com.xiaoleilu.loServer.action.admin.AdminAction;
 import com.xiaoleilu.loServer.handler.Request;
 import com.xiaoleilu.loServer.handler.Response;
 import io.moquette.spi.impl.Utils;
@@ -21,9 +22,12 @@ import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.util.internal.StringUtil;
 import org.apache.commons.codec.digest.DigestUtils;
 import cn.wildfirechat.common.ErrorCode;
+import org.slf4j.LoggerFactory;
 import win.liyufan.im.RateLimiter;
+import win.liyufan.im.Utility;
 
 abstract public class ChannelAction extends Action {
+    private static final org.slf4j.Logger LOG = LoggerFactory.getLogger(ChannelAction.class);
     private final RateLimiter mLimitCounter = new RateLimiter(10, 200);
     protected WFCMessage.ChannelInfo channelInfo;
 
@@ -47,6 +51,7 @@ abstract public class ChannelAction extends Action {
             ts = Long.parseLong(timestamp);
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
             return ErrorCode.INVALID_PARAMETER;
         }
 
diff --git a/broker/src/main/java/com/xiaoleilu/loServer/action/robot/RobotAction.java b/broker/src/main/java/com/xiaoleilu/loServer/action/robot/RobotAction.java
index 3b568b7a..b285c0bd 100644
--- a/broker/src/main/java/com/xiaoleilu/loServer/action/robot/RobotAction.java
+++ b/broker/src/main/java/com/xiaoleilu/loServer/action/robot/RobotAction.java
@@ -14,6 +14,7 @@ import com.xiaoleilu.loServer.RestResult;
 import com.xiaoleilu.loServer.action.Action;
 import com.xiaoleilu.loServer.handler.Request;
 import com.xiaoleilu.loServer.handler.Response;
+import io.moquette.imhandler.IMHandler;
 import io.moquette.spi.impl.Utils;
 import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpRequest;
@@ -21,11 +22,15 @@ import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.util.internal.StringUtil;
 import org.apache.commons.codec.digest.DigestUtils;
 import cn.wildfirechat.common.ErrorCode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import win.liyufan.im.RateLimiter;
+import win.liyufan.im.Utility;
 
 import java.io.UnsupportedEncodingException;
 
 abstract public class RobotAction extends Action {
+    protected static final Logger LOG = LoggerFactory.getLogger(RobotAction.class);
     private final RateLimiter mLimitCounter = new RateLimiter(10, 1000);
 
     protected WFCMessage.Robot robot;
@@ -49,6 +54,7 @@ abstract public class RobotAction extends Action {
             ts = Long.parseLong(timestamp);
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
             return ErrorCode.INVALID_PARAMETER;
         }
 
@@ -89,6 +95,7 @@ abstract public class RobotAction extends Action {
                 return t;
             } catch (UnsupportedEncodingException e) {
                 e.printStackTrace();
+                Utility.printExecption(LOG, e);
             }
         }
         return null;
diff --git a/broker/src/main/java/com/xiaoleilu/loServer/handler/ActionHandler.java b/broker/src/main/java/com/xiaoleilu/loServer/handler/ActionHandler.java
index 6f24d6ec..9815df55 100755
--- a/broker/src/main/java/com/xiaoleilu/loServer/handler/ActionHandler.java
+++ b/broker/src/main/java/com/xiaoleilu/loServer/handler/ActionHandler.java
@@ -21,6 +21,7 @@ import io.netty.handler.codec.http.FullHttpRequest;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import win.liyufan.im.Utility;
 
 /**
  * Action处理单元
@@ -52,6 +53,7 @@ abstract public class ActionHandler extends SimpleChannelInboundHandler<FullHttp
 			}
 		} catch (Exception e) {
 		    e.printStackTrace();
+            Utility.printExecption(Logger, e);
 			Action errorAction = ServerSetting.getErrorAction(ServerSetting.MAPPING_ERROR);
 			request.putParam(UnknownErrorAction.ERROR_PARAM_NAME, e);
 			response.setContent(e.toString());
diff --git a/broker/src/main/java/com/xiaoleilu/loServer/handler/IMActionHandler.java b/broker/src/main/java/com/xiaoleilu/loServer/handler/IMActionHandler.java
index a17939dc..1af9b110 100755
--- a/broker/src/main/java/com/xiaoleilu/loServer/handler/IMActionHandler.java
+++ b/broker/src/main/java/com/xiaoleilu/loServer/handler/IMActionHandler.java
@@ -20,6 +20,7 @@ import io.netty.channel.Channel;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.SimpleChannelInboundHandler;
 import io.netty.handler.codec.http.FullHttpRequest;
+import io.netty.util.internal.StringUtil;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -37,7 +38,7 @@ public class IMActionHandler extends ActionHandler {
 
     @Override
     boolean isValidePath(String path) {
-        if (!path.startsWith("/admin")) {
+        if (!StringUtil.isNullOrEmpty(path) && !path.startsWith("/admin")) {
             return true;
         }
         return false;
diff --git a/broker/src/main/java/io/moquette/imhandler/ModifyMyInfoHandler.java b/broker/src/main/java/io/moquette/imhandler/ModifyMyInfoHandler.java
index c4437e6e..b0440031 100644
--- a/broker/src/main/java/io/moquette/imhandler/ModifyMyInfoHandler.java
+++ b/broker/src/main/java/io/moquette/imhandler/ModifyMyInfoHandler.java
@@ -13,6 +13,7 @@ import io.moquette.spi.impl.Qos1PublishHandler;
 import io.netty.buffer.ByteBuf;
 import cn.wildfirechat.common.ErrorCode;
 import win.liyufan.im.IMTopic;
+import win.liyufan.im.Utility;
 
 @Handler(IMTopic.ModifyMyInfoTopic)
 public class ModifyMyInfoHandler extends IMHandler<WFCMessage.ModifyMyInfoRequest> {
@@ -22,6 +23,7 @@ public class ModifyMyInfoHandler extends IMHandler<WFCMessage.ModifyMyInfoReques
             return m_messagesStore.modifyUserInfo(fromUser, request);
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
             return ErrorCode.ERROR_CODE_SERVER_ERROR;
         }
     }
diff --git a/broker/src/main/java/io/moquette/imhandler/SendMessageHandler.java b/broker/src/main/java/io/moquette/imhandler/SendMessageHandler.java
index 1507419f..23aa1680 100644
--- a/broker/src/main/java/io/moquette/imhandler/SendMessageHandler.java
+++ b/broker/src/main/java/io/moquette/imhandler/SendMessageHandler.java
@@ -17,6 +17,7 @@ import io.netty.buffer.ByteBuf;
 import cn.wildfirechat.common.ErrorCode;
 import win.liyufan.im.IMTopic;
 import win.liyufan.im.MessageShardingUtil;
+import win.liyufan.im.Utility;
 
 import java.util.Set;
 
@@ -39,12 +40,14 @@ public class SendMessageHandler extends IMHandler<WFCMessage.Message> {
             mSensitiveType = Integer.parseInt(mServer.getConfig().getProperty(BrokerConstants.SENSITIVE_Filter_Type));
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
         }
 
         try {
             mBlacklistStrategy = Integer.parseInt(mServer.getConfig().getProperty(BrokerConstants.MESSAGE_Blacklist_Strategy));
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
         }
     }
 
diff --git a/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java b/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
index a9b2eed2..952ab0fd 100755
--- a/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
+++ b/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
@@ -138,30 +138,35 @@ public class MemoryMessagesStore implements IMessagesStore {
             mDisableStrangerChat = Boolean.parseBoolean(m_Server.getConfig().getProperty(BrokerConstants.MESSAGE_Disable_Stranger_Chat));
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
         }
 
         try {
             mFriendRequestDuration = Long.parseLong(m_Server.getConfig().getProperty(FRIEND_Repeat_Request_Duration));
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
         }
 
         try {
             mFriendRejectDuration = Long.parseLong(m_Server.getConfig().getProperty(FRIEND_Reject_Request_Duration));
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
         }
 
         try {
             mChatroomRejoinWhenActive = Boolean.parseBoolean(m_Server.getConfig().getProperty(BrokerConstants.CHATROOM_Rejoin_When_Active));
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
         }
 
         try {
             mChatroomParticipantIdleTime = Long.parseLong(m_Server.getConfig().getProperty(CHATROOM_Participant_Idle_Time, "900000"));
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
         }
     }
 
@@ -1545,6 +1550,7 @@ public class MemoryMessagesStore implements IMessagesStore {
                 databaseStore.updateUser(us);
             } catch (Exception e) {
                 e.printStackTrace();
+                Utility.printExecption(LOG, e);
             }
             mUserMap.put(userId, us);
         }
@@ -2296,6 +2302,7 @@ public class MemoryMessagesStore implements IMessagesStore {
                                 }
                             } catch (Exception e) {
                                 e.printStackTrace();
+                                Utility.printExecption(LOG, e);
                             }
 
                         }
@@ -2506,6 +2513,7 @@ public class MemoryMessagesStore implements IMessagesStore {
                 newInfoBuilder.setAutomatic(Integer.parseInt(value));
             } catch (Exception e) {
                 e.printStackTrace();
+                Utility.printExecption(LOG, e);
             }
         }
 
diff --git a/broker/src/main/java/io/moquette/persistence/MemorySessionStore.java b/broker/src/main/java/io/moquette/persistence/MemorySessionStore.java
index ac88d27f..080d189c 100755
--- a/broker/src/main/java/io/moquette/persistence/MemorySessionStore.java
+++ b/broker/src/main/java/io/moquette/persistence/MemorySessionStore.java
@@ -29,6 +29,7 @@ import io.moquette.spi.IMessagesStore.StoredMessage;
 import io.netty.handler.codec.mqtt.MqttVersion;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import win.liyufan.im.Utility;
 
 import java.util.*;
 import java.util.concurrent.*;
@@ -272,6 +273,7 @@ public class MemorySessionStore implements ISessionsStore {
             supportMultiEndpoint = Boolean.parseBoolean(server.getConfig().getProperty(BrokerConstants.SERVER_MULTI_ENDPOINT));
         } catch (Exception e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
         }
     }
 
diff --git a/broker/src/main/java/io/moquette/spi/impl/MessagesPublisher.java b/broker/src/main/java/io/moquette/spi/impl/MessagesPublisher.java
index c791646c..b06bfaf3 100755
--- a/broker/src/main/java/io/moquette/spi/impl/MessagesPublisher.java
+++ b/broker/src/main/java/io/moquette/spi/impl/MessagesPublisher.java
@@ -87,6 +87,7 @@ public class MessagesPublisher {
             Thread.sleep(1000);
         } catch (InterruptedException e) {
             e.printStackTrace();
+            Utility.printExecption(LOG, e);
         }
         chatroomScheduler.shutdown();
     }
diff --git a/broker/src/main/java/io/moquette/spi/impl/Qos1PublishHandler.java b/broker/src/main/java/io/moquette/spi/impl/Qos1PublishHandler.java
index 19806b42..9c55965b 100755
--- a/broker/src/main/java/io/moquette/spi/impl/Qos1PublishHandler.java
+++ b/broker/src/main/java/io/moquette/spi/impl/Qos1PublishHandler.java
@@ -187,6 +187,7 @@ public class Qos1PublishHandler extends QosPublishHandler {
                                         gzip.close();
                                     } catch (Exception e) {
                                         e.printStackTrace();
+                                        Utility.printExecption(LOG, e);
                                     }
                                     data = out.toByteArray();
                                     code = (byte)ErrorCode.ERROR_CODE_SUCCESS_GZIPED.code;