diff --git a/libraries/mogo-adas/src/main/java/com/zhidao/support/adas/high/common/MessageIdGenerator.java b/libraries/mogo-adas/src/main/java/com/zhidao/support/adas/high/common/MessageIdGenerator.java
index 7e7f4a2e89..fa3f35885c 100644
--- a/libraries/mogo-adas/src/main/java/com/zhidao/support/adas/high/common/MessageIdGenerator.java
+++ b/libraries/mogo-adas/src/main/java/com/zhidao/support/adas/high/common/MessageIdGenerator.java
@@ -17,11 +17,11 @@ import mogo.telematics.pad.MessagePad;
 public class MessageIdGenerator {
     private static final String TAG = "MessageIdGenerator";
     private static volatile MessageIdGenerator INSTANCE;
-    private final static int DEFAULT_COUNT = 30;//默认保留数量
-    private final static String KEY_NAME = "send_message_id";//序列化名称
+    private static final int DEFAULT_COUNT = 30;//默认保留数量
+    private static final String KEY_NAME = "send_message_id";//序列化名称
 
     private final Adas.MessageIdInfo.Builder messageIdInfoBuilder;
-    private Adas.LastMessage lastMessage = null;
+    private Adas.LastMessage lastMessage;
     private final long data;//日期long值
 
 
@@ -45,25 +45,22 @@ public class MessageIdGenerator {
         calendar.set(Calendar.MILLISECOND, 0);
         data = calendar.getTimeInMillis();
 
-        Adas.MessageIdInfo messageIdInfo = null;
+        Adas.MessageIdInfo.Builder builder = Adas.MessageIdInfo.newBuilder();
         byte[] bytes = MMKVUtils.getInstance().getBytes(KEY_NAME);
         if (bytes != null) {
             try {
-                messageIdInfo = Adas.MessageIdInfo.parseFrom(bytes);
+                Adas.MessageIdInfo parsed = Adas.MessageIdInfo.parseFrom(bytes);
+                builder.putAllLastMessages(parsed.getLastMessagesMap());
             } catch (InvalidProtocolBufferException e) {
                 e.printStackTrace();
             }
         }
-        if (messageIdInfo == null) {
-            messageIdInfoBuilder = Adas.MessageIdInfo.newBuilder();
-        } else {
-            messageIdInfoBuilder = messageIdInfo.toBuilder();
-            if (messageIdInfoBuilder.getLastMessagesCount() >= DEFAULT_COUNT) {
-                long minValue = Collections.min(messageIdInfoBuilder.getLastMessagesMap().keySet());
-                messageIdInfoBuilder.removeLastMessages(minValue);
-                save();
-            }
+        // 修剪过期数据（如果超出默认保留数量）
+        if (builder.getLastMessagesCount() >= DEFAULT_COUNT) {
+            long minKey = Collections.min(builder.getLastMessagesMap().keySet());
+            builder.removeLastMessages(minKey);
         }
+        messageIdInfoBuilder = builder;
         initLastMessageData();
     }
 
@@ -108,19 +105,24 @@ public class MessageIdGenerator {
     }
 
     /**
+     * 获取当前消息ID，并进行自增与保存
      * TODO 10000次存储平均耗时=0.2036132830000002毫秒
      *
-     * @param timestamp
-     * @param type
-     * @return
+     * @param timestamp 当前时间
+     * @param type      消息类型
+     * @return 自增后的消息ID
      */
     public long getId(long timestamp, MessagePad.MessageType type) {
-        long id = lastMessage.getMsgID() + 1;
-        CupidLogUtils.i(TAG, "自增ID=" + id);
-        lastMessage = lastMessage.toBuilder().setTimestamp(timestamp).setMsgType(type).setMsgID(id).build();
-        messageIdInfoBuilder.putLastMessages(data, lastMessage);
-        save();
+        long newId = lastMessage.getMsgID() + 1;
+        CupidLogUtils.i(TAG, "自增ID=" + newId);
+        try {
+            lastMessage = lastMessage.toBuilder().setMsgID(newId).setTimestamp(timestamp).setMsgType(type).build();
+            messageIdInfoBuilder.putLastMessages(data, lastMessage);
+            save();
 //        test();
-        return id;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return newId;
     }
 }