diff --git a/lib/chat/group_chat_view.dart b/lib/chat/group_chat_view.dart
index 41aec0e..a33f2b9 100644
--- a/lib/chat/group_chat_view.dart
+++ b/lib/chat/group_chat_view.dart
@@ -521,7 +521,7 @@ class _GroupChatPageState extends State<GroupChatPage> {
     var lastMsgTime;
 
     if (index < msgList.length - 1) {
-      lastMsgTime = msgList[index].time;
+      lastMsgTime = msgList[index+1].time;
     }
 
     MsgModel msg = msgList[index];
diff --git a/lib/data/chat_data_mgr.dart b/lib/data/chat_data_mgr.dart
index 0000f3f..f36f894 100644
--- a/lib/data/chat_data_mgr.dart
+++ b/lib/data/chat_data_mgr.dart
@@ -127,19 +127,22 @@ class ChatDataMgr {
 
     int curIndex = 0;
     if (record != null && record.length > 0) {
+      print('#### 有历史聊天记录 条数 ${record.length}');
       for (var i = 0; i < record.length; i++) {
         if (record[i].time == msgModel.time) {
           curIndex = i;
           break;
         }
       }
+    }else{
+      print('#### 没有聊天记录');
     }
 
-    int maxLen = min(curIndex + 1, record.length);
-
+    int maxLen = min(curIndex + 4, record.length);
+      print('curIndex:$curIndex maxLen:$maxLen}');
     for (var i = curIndex + 1; i < maxLen; i++) {
       var shortDesc = record[i].shortRecordForTranslator();
-      print(shortDesc);
+//      print('shortDesc'+shortDesc['Content']);
       res.add(shortDesc);
     }
 
diff --git a/lib/models/ChatMsg.dart b/lib/models/ChatMsg.dart
index 70dd2ac..bcd307a 100644
--- a/lib/models/ChatMsg.dart
+++ b/lib/models/ChatMsg.dart
@@ -283,8 +283,8 @@ class MsgModel {
 
     return {
       'SendTime': DateUtils()
-          .getFormartData(timeSamp: time, format: 'yyyy:MM:dd hh:mm:ss'),
-      'Content': desc,
+          .getFormartData(timeSamp: time, format: 'yyyy-MM-dd hh:mm:ss'),
+      'Content': base64Encode(utf8.encode(desc)),
       'UserId': from
     };
   }
diff --git a/lib/utils/HttpUtil.dart b/lib/utils/HttpUtil.dart
index 34e190e..1f35c0c 100644
--- a/lib/utils/HttpUtil.dart
+++ b/lib/utils/HttpUtil.dart
@@ -171,7 +171,7 @@ class HttpUtil {
       if (CancelToken.isCancel(e)) {
         print('post请求取消! ' + e.message);
       }
-      print('post请求发生错误：$e');
+      print('post请求发生错误  url:$url  参数:$data 错误:$e');
       if (isShowLoading) LoadingManage().closeLoading();
       showToast(I18n.of(Constants.getCurrentContext()).server_error_tips);
       if (failback != null) failback();