对象实现序列化

 package com.yoho.search.models;
 
-public class RecommendPromotionAggVO {
+import java.io.Serializable;
+
+public class RecommendPromotionAggVO implements Serializable{
+
+	private static final long serialVersionUID = -1688953172852093071L;
 
 	private int promotion_info_id;