diff --git a/src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.java b/src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.java
index 896d730e..f882766f 100644
--- a/src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.java
+++ b/src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.java
@@ -203,5 +203,19 @@ public interface DeviceChannelMapper {
     @Select("SELECT * FROM device_channel WHERE deviceId=#{deviceId} AND status=1")
     List<DeviceChannel> queryOnlineChannelsByDeviceId(String deviceId);
 
+    @Select(" SELECT\n" +
+            "        channelId,\n" +
+            "        channelId as id,\n" +
+            "        deviceId,\n" +
+            "        parentId,\n" +
+            "        status,\n" +
+            "        name as title,\n" +
+            "        channelId as \"value\",\n" +
+            "        channelId as \"key\",\n" +
+            "        channelId,\n" +
+            "        longitude,\n" +
+            "        latitude\n" +
+            "        from device_channel\n" +
+            "        where deviceId = #{deviceId}")
     List<DeviceChannelTree> tree(String deviceId);
 }
diff --git a/src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.xml b/src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.xml
deleted file mode 100644
index ce69d222..00000000
--- a/src/main/java/com/genersoft/iot/vmp/storager/dao/DeviceChannelMapper.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
-<mapper namespace="com.genersoft.iot.vmp.storager.dao.DeviceChannelMapper">
-
-    <!-- 通用查询映射结果 -->
-    <resultMap id="treeNodeResultMap" type="com.genersoft.iot.vmp.vmanager.bean.DeviceChannelTreeNode">
-        <id column="id" property="id"/>
-        <result column="parentId" property="parentId"/>
-        <result column="status" property="status"/>
-        <result column="title" property="title"/>
-        <result column="value" property="value"/>
-        <result column="key" property="key"/>
-        <result column="deviceId" property="deviceId"/>
-        <result column="channelId" property="channelId"/>
-        <result column="longitude" property="lng"/>
-        <result column="latitude" property="lat"/>
-    </resultMap>
-
-
-    <select id="tree" resultMap="treeNodeResultMap">
-        SELECT
-        channelId,
-        channelId as id,
-        deviceId,
-        parentId,
-        status,
-        name as title,
-        channelId as "value",
-        channelId as "key",
-        channelId,
-        longitude,
-        latitude
-        from device_channel
-        where deviceId = #{deviceId}
-    </select>
-
-</mapper>
diff --git a/src/main/java/com/genersoft/iot/vmp/vmanager/bean/DeviceChannelTree.java b/src/main/java/com/genersoft/iot/vmp/vmanager/bean/DeviceChannelTree.java
index b147a9e5..773f2c13 100644
--- a/src/main/java/com/genersoft/iot/vmp/vmanager/bean/DeviceChannelTree.java
+++ b/src/main/java/com/genersoft/iot/vmp/vmanager/bean/DeviceChannelTree.java
@@ -28,6 +28,12 @@ public class DeviceChannelTree extends DeviceChannel implements INode<DeviceChan
 
     private String parentName;
 
+    private String title;
+
+    private String key;
+
+    private String value;
+
     /**
      * 子孙节点
      */
@@ -47,4 +53,13 @@ public class DeviceChannelTree extends DeviceChannel implements INode<DeviceChan
         }
         return this.children;
     }
+
+    @Override
+    public Boolean getHasChildren() {
+        if (children.size() > 0) {
+            return true;
+        } else {
+            return this.hasChildren;
+        }
+    }
 }