工单处理结果属性类型更改

src/main/java/org/energy/modules/smart/entity/WorkOrder.java

@@ -116,8 +116,9 @@ public class WorkOrder extends BaseEntity {
     /**
      * 处理结果
      */
+	@JsonSerialize(nullsUsing = NullSerializer.class)
     @ApiModelProperty(value = "处理结果")
-    private String handlingResult;
+    private Integer handlingResult;
     /**
      * 审核状态
      */