导入客户，时间为空时补null

src/main/java/com/qs/serve/modules/bms/entity/BmsSupplier.java

@@ -112,6 +112,7 @@ public class BmsSupplier implements Serializable {
     /** 闭户日期 */
     @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
     @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")
+    @TableField(updateStrategy = FieldStrategy.IGNORED)
     private LocalDateTime stopFlagDate;
 
     /** 所属账套 */
@@ -125,6 +126,7 @@ public class BmsSupplier implements Serializable {
     /** 暂不合作日期 */
     @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
     @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss",timezone = "GMT+8")
+    @TableField(updateStrategy = FieldStrategy.IGNORED)
     private LocalDateTime cooperatePauseFlagDate;
 
     /** 创建时间 */