fix

haoban-manage3-api/src/main/java/com/gic/haoban/manage/api/dto/MaterialCategoryDTO.java

 package com.gic.haoban.manage.api.dto;
 
+import java.io.Serializable;
 import java.util.Date;
 
-public class MaterialCategoryDTO {
+public class MaterialCategoryDTO implements Serializable{
 	
 	private String categoryId;
 

haoban-manage3-api/src/main/java/com/gic/haoban/manage/api/dto/MaterialDTO.java

 package com.gic.haoban.manage.api.dto;
 
+import java.io.Serializable;
 import java.util.Date;
 
-public class MaterialDTO {
+public class MaterialDTO implements Serializable{
 	
 	private String materialId;