update 全局map

jsowell-common/src/main/java/com/jsowell/common/enums/ykc/PileChannelEntity.java

@@ -3,13 +3,17 @@ package com.jsowell.common.enums.ykc;
 import io.netty.channel.Channel;
 
 import java.util.HashMap;
+import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * 桩编号和channel的关联关系处理 entity
  */
 public class PileChannelEntity {
 
-    private static HashMap<String, Channel> manager = new HashMap<>();
+    /**
+     * 管理一个全局map，保存连接进服务端的通道数量
+     */
+    private static final ConcurrentHashMap<String, Channel> manager = new ConcurrentHashMap<>();
  
     public static void put(String pileSn, Channel channel) {
         manager.put(pileSn, channel);