diff --git a/cloud-common/src/main/java/com/cm/common/pojo/dtos/ZTreeDTO.java b/cloud-common/src/main/java/com/cm/common/pojo/dtos/ZTreeDTO.java
index bd63554..90f94f7 100644
--- a/cloud-common/src/main/java/com/cm/common/pojo/dtos/ZTreeDTO.java
+++ b/cloud-common/src/main/java/com/cm/common/pojo/dtos/ZTreeDTO.java
@@ -13,7 +13,7 @@ import java.io.Serializable;
  * @Version: 1.0
  **/
 @ApiModel
-public class ZTreeDTO implements Serializable {
+public class ZTreeDTO implements Cloneable, Serializable {
 
     private static final long serialVersionUID = 1972916766961693525L;
     @ApiModelProperty(name = "id", value = "ID")
@@ -107,6 +107,17 @@ public class ZTreeDTO implements Serializable {
         this.title = title;
     }
 
+    @Override
+    public Object clone() {
+        ZTreeDTO zTreeDTO = null;
+        try{
+            zTreeDTO = (ZTreeDTO) super.clone();
+        }catch (CloneNotSupportedException e) {
+            e.printStackTrace();
+        }
+        return zTreeDTO;
+    }
+
     @Override
     public String toString() {
         final StringBuilder sb = new StringBuilder("{");
diff --git a/cloud-common/src/main/java/com/cm/common/utils/ArrayListUtil.java b/cloud-common/src/main/java/com/cm/common/utils/ArrayListUtil.java
new file mode 100644
index 0000000..26f10d5
--- /dev/null
+++ b/cloud-common/src/main/java/com/cm/common/utils/ArrayListUtil.java
@@ -0,0 +1,36 @@
+package com.cm.common.utils;
+
+import java.io.*;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * When you feel like quitting. Think about why you started
+ * 当你想要放弃的时候，想想当初你为何开始
+ *
+ * @ClassName: ArrayListUtil
+ * @Description: 列表工具
+ * @Author: WangGeng
+ * @Date: 2020/8/24 17:25
+ * @Version: 1.0
+ **/
+public class ArrayListUtil {
+
+    public static <T extends Serializable> List<T> deepClone(List<? extends Serializable> sourceList, Class<T> clazz) {
+        ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
+        try {
+            ObjectOutputStream out = new ObjectOutputStream(byteOut);
+            out.writeObject(sourceList);
+            ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray());
+            ObjectInputStream inStream = new ObjectInputStream(byteIn);
+            List<T> destList = (List<T>) inStream.readObject();
+            return destList;
+        } catch (IOException e) {
+            e.printStackTrace();
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+}