diff --git a/src/main/java/org/energy/modules/leger/entity/ToolInventoryRecord.java b/src/main/java/org/energy/modules/leger/entity/ToolInventoryRecord.java
index 476ea7e..7f40435 100644
--- a/src/main/java/org/energy/modules/leger/entity/ToolInventoryRecord.java
+++ b/src/main/java/org/energy/modules/leger/entity/ToolInventoryRecord.java
@@ -5,6 +5,7 @@ import com.dayu.daf.core.mp.base.BaseEntity;
 import java.io.Serializable;
 
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.databind.ser.std.NullSerializer;
 import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
@@ -99,6 +100,7 @@ public class ToolInventoryRecord extends BaseEntity {
     /**
      * 是否检验周期内
      */
+	@JsonSerialize(nullsUsing = NullSerializer.class)
     @ApiModelProperty(value = "是否检验周期内")
     private Integer isInspectionPeriod;
     /**