操作票（张同朕）

src/main/java/org/energy/modules/smart/entity/OperationTicket.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;
@@ -164,6 +165,7 @@ public class OperationTicket extends BaseEntity {
     /**
      * 是否合格
      */
+	@JsonSerialize(nullsUsing = NullSerializer.class)
     @ApiModelProperty(value = "是否合格")
     private Integer isQuakified;
     /**