diff --git a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/AddSnConfigParam.java b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/AddSnConfigParam.java
index 449b3a7..328113c 100644
--- a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/AddSnConfigParam.java
+++ b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/AddSnConfigParam.java
@@ -29,11 +29,6 @@ public class AddSnConfigParam implements Constrained {
     @NotBlank(message = "编码名称不能为空")
     private String sncode;
 
-    /**
-     * 示例
-     */
-    @NotBlank(message = "示例不能为空")
-    private String example;
     /**
      * 配置
      */
diff --git a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/IncSnService.java b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/IncSnService.java
index 484c3a6..0cf0485 100644
--- a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/IncSnService.java
+++ b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/IncSnService.java
@@ -84,6 +84,7 @@ public class IncSnService extends ServiceImpl<IncSnMapper, IncSnEntity> implemen
 
         if (val == maxVal) {
             Boolean allowOverflow = incCodeEntity.getAllowOverflow();
+            if (allowOverflow == null) allowOverflow = Boolean.TRUE;
             if (allowOverflow) {
                 newVal = incCodeEntity.getInitialVal();
             } else {
@@ -92,9 +93,13 @@ public class IncSnService extends ServiceImpl<IncSnMapper, IncSnEntity> implemen
         }
 
         RollbackMode rollback = incCodeEntity.getRollback();
+        if (rollback == null) rollback = RollbackMode.Wu;
 
         LocalDateTime now = LocalDateTime.now();
         LocalDateTime lastTime = incCodeEntity.getLastTime();
+        if (lastTime == null) {
+            lastTime = now;
+        }
 
         switch (rollback) {
             case Wu: {
@@ -181,9 +186,9 @@ public class IncSnService extends ServiceImpl<IncSnMapper, IncSnEntity> implemen
                 Assert.notBlank(pici, () -> Exceptions.exception("批次号不能为空"));
                 String lastPici = incCodeEntity.getLastPici();
                 if (pici.equals(lastPici)) {
-                    newVal = incCodeEntity.getInitialVal();
-                } else {
                     newVal = val + incCodeEntity.getStep();
+                } else {
+                    newVal = incCodeEntity.getInitialVal();
                 }
             }
             break;
diff --git a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/ModifySnConfigParam.java b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/ModifySnConfigParam.java
index 10c5377..dbcaddd 100644
--- a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/ModifySnConfigParam.java
+++ b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/ModifySnConfigParam.java
@@ -28,11 +28,6 @@ public class ModifySnConfigParam implements Constrained {
      * 编码名称
      */
     private String sncode;
-
-    /**
-     * 示例
-     */
-    private String example;
     /**
      * 配置
      */
diff --git a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/SnConfigController.java b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/SnConfigController.java
index ebb9ea3..1dd7e15 100644
--- a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/SnConfigController.java
+++ b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/SnConfigController.java
@@ -32,8 +32,15 @@ public class SnConfigController {
     }
 
     @GetMapping("/next")
-    public R<?> next(@RequestParam(required = false, defaultValue = "Default") String sncode) {
-        return R.success(SnUtil.next(sncode));
+    public R<?> next(@RequestParam(required = false, defaultValue = "Default") String sncode,
+                     @RequestParam(required = false) String pici) {
+        return R.success(SnUtil.next(sncode, pici));
+    }
+
+    @GetMapping("/reset")
+    public R<?> reset(@RequestParam("sncode") String sncode) {
+        snConfigService.reset(sncode);
+        return R.success();
     }
 
     /**
diff --git a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/SnConfigService.java b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/SnConfigService.java
index 512dc69..3ab6efa 100644
--- a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/SnConfigService.java
+++ b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/SnConfigService.java
@@ -53,11 +53,13 @@ public class SnConfigService extends ServiceImpl<SnConfigMapper, SnConfigEntity>
         List<HashMap<String, Object>> configList = addSnConfigParam.getConfig();
         Tuple2<List<SectionConfig>, List<IncSnEntity>> tuple2 = resolveConfig(configList);
 
+        List<SectionConfig> configs = tuple2.get_0();
+        String example = configs.stream().map(SectionConfig::genExample).collect(Collectors.joining());
         this.save(new SnConfigEntity()
                 .setSnname(addSnConfigParam.getSnname())
                 .setSncode(sncode)
-                .setExample(addSnConfigParam.getExample())
-                .setConfig(tuple2.get_0())
+                .setExample(example)
+                .setConfig(configs)
                 .setMemo(addSnConfigParam.getMemo())
         );
 
@@ -125,12 +127,13 @@ public class SnConfigService extends ServiceImpl<SnConfigMapper, SnConfigEntity>
             oldIncSnEntityList = incSnService.list(Wrappers.lambdaQuery(IncSnEntity.class).in(IncSnEntity::getCode, oldIncSectionConfigCodeList));
         }
         modifyIncSnSectionConfig(oldIncSnEntityList, tuple2.get_1());
-
+        List<SectionConfig> configs = tuple2.get_0();
+        String example = configs.stream().map(SectionConfig::genExample).collect(Collectors.joining());
         this.updateById(new SnConfigEntity()
                 .setId(id)
                 .setSnname(modifySnConfigParam.getSnname())
                 .setSncode(modifySnConfigParam.getSncode())
-                .setExample(modifySnConfigParam.getExample())
+                .setExample(example)
                 .setConfig(tuple2.get_0())
                 .setMemo(modifySnConfigParam.getMemo())
         );
@@ -206,4 +209,27 @@ public class SnConfigService extends ServiceImpl<SnConfigMapper, SnConfigEntity>
         return PageResult.of(page.convert(it -> BeanUtil.copyProperties(it, SearchSnConfigResult.class)));
     }
 
+    @Transactional(rollbackFor = Exception.class)
+    public void reset(String sncode) {
+        SnConfigEntity configEntity = this.getOne(Wrappers.lambdaQuery(SnConfigEntity.class).eq(SnConfigEntity::getSncode, sncode));
+        Assert.notNull(configEntity, () -> Exceptions.clierr("规则不存在"));
+        List<SectionConfig> config = configEntity.getConfig();
+        List<String> codes = config.stream().filter(it -> it instanceof IncSectionConfig)
+                .map(it -> ((IncSectionConfig) it).getCode())
+                .collect(Collectors.toList());
+        if (CollUtil.isEmpty(codes)) return;
+
+        List<IncSnEntity> incSnEntityList = incSnService
+                .list(Wrappers.lambdaQuery(IncSnEntity.class).in(IncSnEntity::getCode, codes))
+                .stream().map(it -> BeanUtil.copyProperties(it, IncSnEntity.class)
+                        .setVal(it.getInitialVal())
+                        .setLastTime(null)
+                        .setLastPici(null)
+                )
+                .collect(Collectors.toList());
+
+        incSnService.remove(Wrappers.lambdaQuery(IncSnEntity.class).in(IncSnEntity::getCode, codes));
+
+        incSnService.saveBatch(incSnEntityList);
+    }
 }
diff --git a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/FixedSectionConfig.java b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/FixedSectionConfig.java
index 142a183..25e6cc3 100644
--- a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/FixedSectionConfig.java
+++ b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/FixedSectionConfig.java
@@ -21,6 +21,11 @@ public class FixedSectionConfig implements SectionConfig {
     private String value;
 
 
+    @Override
+    public String genExample() {
+        return value;
+    }
+
     @Override
     public ISnSection section() {
         return new FixedSection(value);
diff --git a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/IncSectionConfig.java b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/IncSectionConfig.java
index 1ccaa41..f9e3e56 100644
--- a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/IncSectionConfig.java
+++ b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/IncSectionConfig.java
@@ -2,6 +2,7 @@ package com.njzscloud.common.sn.support;
 
 import cn.hutool.core.lang.Assert;
 import cn.hutool.core.map.MapUtil;
+import cn.hutool.core.util.StrUtil;
 import com.njzscloud.common.core.ex.Exceptions;
 import com.njzscloud.common.core.ienum.Dict;
 import com.njzscloud.common.sn.contant.PadMode;
@@ -51,6 +52,13 @@ public class IncSectionConfig implements SectionConfig {
      */
     private Boolean allowOverflow;
 
+    @Override
+    public String genExample() {
+        return padMode == PadMode.Zuo ? StrUtil.padPre(initialVal.toString(), padLen, padVal) :
+                padMode == PadMode.You ? StrUtil.padAfter(initialVal.toString(), padLen, padVal) :
+                        initialVal.toString();
+    }
+
     @Override
     public ISnSection section() {
         return new IncSection(code, step, initialVal, padMode, padVal, padLen);
@@ -61,6 +69,9 @@ public class IncSectionConfig implements SectionConfig {
         code = MapUtil.getStr(config, "code");
         step = MapUtil.getInt(config, "step");
         initialVal = MapUtil.getInt(config, "initialVal");
+        rollback = Dict.parse(MapUtil.getStr(config, "rollback"), RollbackMode.values());
+        if (rollback == null) rollback = RollbackMode.Wu;
+        allowOverflow = MapUtil.getBool(config, "allowOverflow", Boolean.TRUE);
         padMode = Dict.parse(MapUtil.getStr(config, "padMode"), PadMode.values());
         if (padMode == null) padMode = PadMode.Wu;
         padVal = MapUtil.getStr(config, "padVal");
diff --git a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/RandomSectionConfig.java b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/RandomSectionConfig.java
index 7a0157c..8d019f7 100644
--- a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/RandomSectionConfig.java
+++ b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/RandomSectionConfig.java
@@ -2,6 +2,7 @@ package com.njzscloud.common.sn.support;
 
 import cn.hutool.core.lang.Assert;
 import cn.hutool.core.map.MapUtil;
+import cn.hutool.core.util.IdUtil;
 import com.njzscloud.common.core.ex.Exceptions;
 import com.njzscloud.common.core.ienum.Dict;
 import com.njzscloud.common.sn.contant.RandomMode;
@@ -34,6 +35,18 @@ public class RandomSectionConfig implements SectionConfig {
      */
     private Integer nanoIdSize;
 
+    @Override
+    public String genExample() {
+        switch (randomMode) {
+            case UUID:
+                return IdUtil.simpleUUID();
+            case NanoId:
+                return nanoIdSize == null ? IdUtil.nanoId() : IdUtil.nanoId(nanoIdSize);
+            default:
+                return workerId == null || datacenterId == null ? IdUtil.getSnowflakeNextIdStr() : IdUtil.getSnowflake(workerId, datacenterId).nextIdStr();
+        }
+    }
+
     @Override
     public ISnSection section() {
         return new RandomSection(randomMode, workerId, datacenterId, nanoIdSize);
diff --git a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/SectionConfig.java b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/SectionConfig.java
index de6a54c..0dcf599 100644
--- a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/SectionConfig.java
+++ b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/SectionConfig.java
@@ -12,6 +12,8 @@ public interface SectionConfig {
      */
     SnSection getSectionName();
 
+    String genExample();
+
     /**
      * 编码段实例
      */
diff --git a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/SnUtil.java b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/SnUtil.java
index 26d2987..e769203 100644
--- a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/SnUtil.java
+++ b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/SnUtil.java
@@ -40,8 +40,12 @@ public final class SnUtil {
         return next("Default");
     }
 
-    public static synchronized String next(String sncode) {
+    public static String next(String sncode) {
+        return next(sncode, null);
+    }
+
+    public static synchronized String next(String sncode, String pici) {
         Assert.notBlank(sncode, () -> Exceptions.clierr("未指定编码规则"));
-        return SN_CONFIG_SERVICE.getSn(sncode).next();
+        return SN_CONFIG_SERVICE.getSn(sncode).next(pici);
     }
 }
diff --git a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/TimeSectionConfig.java b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/TimeSectionConfig.java
index c7de64e..e1a31a3 100644
--- a/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/TimeSectionConfig.java
+++ b/njzscloud-common/njzscloud-common-sn/src/main/java/com/njzscloud/common/sn/support/TimeSectionConfig.java
@@ -1,5 +1,6 @@
 package com.njzscloud.common.sn.support;
 
+import cn.hutool.core.date.DateUtil;
 import cn.hutool.core.lang.Assert;
 import cn.hutool.core.map.MapUtil;
 import cn.hutool.core.util.StrUtil;
@@ -10,6 +11,7 @@ import lombok.Setter;
 import lombok.ToString;
 import lombok.experimental.Accessors;
 
+import java.util.Date;
 import java.util.Map;
 
 @Getter
@@ -31,6 +33,11 @@ public class TimeSectionConfig implements SectionConfig {
      */
     private Integer unit;
 
+    @Override
+    public String genExample() {
+        return timestamp ? new Date().getTime() / unit + "" : DateUtil.format(new Date(), pattern);
+    }
+
     @Override
     public ISnSection section() {
         return new TimeSection(pattern, timestamp, unit);
diff --git a/njzscloud-svr/src/main/java/com/njzscloud/supervisory/order/controller/OrderInfoController.java b/njzscloud-svr/src/main/java/com/njzscloud/supervisory/order/controller/OrderInfoController.java
index 7de5bfe..05c4580 100644
--- a/njzscloud-svr/src/main/java/com/njzscloud/supervisory/order/controller/OrderInfoController.java
+++ b/njzscloud-svr/src/main/java/com/njzscloud/supervisory/order/controller/OrderInfoController.java
@@ -34,7 +34,7 @@ public class OrderInfoController {
      * 新增
      */
     @PostMapping("/add")
-    public R<?> add(@RequestBody AddOrderInfoParam addOrderInfoParam) {
+    public synchronized R<?> add(@RequestBody AddOrderInfoParam addOrderInfoParam) {
         OrderCategory orderCategory = addOrderInfoParam.getOrderCategory();
         Assert.isTrue(orderCategory == OrderCategory.PuTong
                         || orderCategory == OrderCategory.DuanBoChu
diff --git a/njzscloud-svr/src/main/java/com/njzscloud/supervisory/order/service/OrderInfoService.java b/njzscloud-svr/src/main/java/com/njzscloud/supervisory/order/service/OrderInfoService.java
index 400476f..7269490 100644
--- a/njzscloud-svr/src/main/java/com/njzscloud/supervisory/order/service/OrderInfoService.java
+++ b/njzscloud-svr/src/main/java/com/njzscloud/supervisory/order/service/OrderInfoService.java
@@ -109,6 +109,7 @@ public class OrderInfoService extends ServiceImpl<OrderInfoMapper, OrderInfoEnti
      * 新增
      */
     public void add(AddOrderInfoParam addOrderInfoParam, String orderSn) {
+        Assert.isFalse(this.exists(Wrappers.<OrderInfoEntity>lambdaQuery().eq(OrderInfoEntity::getSn, addOrderInfoParam.getSn())), () -> Exceptions.exception("订单创建失败，订单号重复"));
         AddOrderCargoPlaceParam cargoPlace = addOrderInfoParam.getCargoPlace();
         long cargoPlaceId = orderCargoPlaceService.add(cargoPlace);
         Long userId = SecurityUtil.currentUserId();
@@ -1090,7 +1091,7 @@ public class OrderInfoService extends ServiceImpl<OrderInfoMapper, OrderInfoEnti
     /**
      * 计算付费项的总金额
      * 根据计费类型（弹性计费/固定计费）选择不同的计算策略
-     * 
+     *
      * @param item 付费项实体
      * @return 总金额
      */
@@ -1103,13 +1104,13 @@ public class OrderInfoService extends ServiceImpl<OrderInfoMapper, OrderInfoEnti
             // 1. 将数量（公斤）转换为吨
             BigDecimal actualWeight = new BigDecimal(item.getQuantity() == null ? 0 : item.getQuantity())
                     .divide(new BigDecimal("1000"), 6, BigDecimal.ROUND_HALF_UP);
-            
+
             // 2. 获取弹性计费参数
             BigDecimal basicWeight = item.getBasicWeight();
             BigDecimal basicPrice = item.getBasicPrice();
             BigDecimal everyWeight = item.getEveryWeight();
             BigDecimal everyPrice = item.getEveryPrice();
-            
+
             // 3. 计算总金额
             if (actualWeight.compareTo(basicWeight) <= 0) {
                 // 实际重量小于等于基础磅重，使用基础价格
@@ -1135,33 +1136,33 @@ public class OrderInfoService extends ServiceImpl<OrderInfoMapper, OrderInfoEnti
 
     /**
      * 计算并设置付费项的金额（总金额、结算金额）
-     * 
+     *
      * @param item 付费项实体
      */
     private void calculateAndSetItemMoney(OrderExpenseItemsEntity item) {
         // 计算总金额
         BigDecimal totalMoney = calculateItemTotalMoney(item);
-        
+
         // settle_money = total_money + discount_money + revise_money（discount、revise 可为正负）
         BigDecimal discount = item.getDiscountMoney() == null ? BigDecimal.ZERO : item.getDiscountMoney();
         BigDecimal revise = item.getReviseMoney() == null ? BigDecimal.ZERO : item.getReviseMoney();
         BigDecimal settle = totalMoney.add(discount).add(revise);
-        
+
         item.setTotalMoney(totalMoney).setSettleMoney(settle);
     }
 
     /**
      * 根据付费项列表更新订单汇总金额
-     * 
+     *
      * @param orderId 订单ID
-     * @param items 付费项列表（已经计算好金额）
+     * @param items   付费项列表（已经计算好金额）
      */
     private void updateOrderTotalMoney(Long orderId, List<OrderExpenseItemsEntity> items) {
         BigDecimal totalDiscountMoney = BigDecimal.ZERO;
         BigDecimal totalReviseMoney = BigDecimal.ZERO;
         BigDecimal totalSettleMoney = BigDecimal.ZERO;
         BigDecimal totalTotalMoney = BigDecimal.ZERO;
-        
+
         // 汇总各项金额
         for (OrderExpenseItemsEntity item : items) {
             BigDecimal discount = item.getDiscountMoney() == null ? BigDecimal.ZERO : item.getDiscountMoney();
@@ -1185,16 +1186,16 @@ public class OrderInfoService extends ServiceImpl<OrderInfoMapper, OrderInfoEnti
 
     /**
      * 计算付费项列表的金额并更新订单汇总金额
-     * 
+     *
      * @param orderId 订单ID
-     * @param items 付费项列表
+     * @param items   付费项列表
      */
     private void calculateItemsAndUpdateOrder(Long orderId, List<OrderExpenseItemsEntity> items) {
         // 计算各付费项金额
         for (OrderExpenseItemsEntity item : items) {
             calculateAndSetItemMoney(item);
         }
-        
+
         // 更新订单汇总金额
         updateOrderTotalMoney(orderId, items);
     }
@@ -1203,14 +1204,14 @@ public class OrderInfoService extends ServiceImpl<OrderInfoMapper, OrderInfoEnti
         List<OrderExpenseItemsEntity> extraItems = orderExpenseItemsService.list(Wrappers.lambdaQuery(OrderExpenseItemsEntity.class)
                 .eq(OrderExpenseItemsEntity::getOrderId, orderId)
                 .eq(OrderExpenseItemsEntity::getDeleted, Boolean.FALSE));
-        
+
         // 更新数量：按车计费数量=1，否则=称重数量
         for (OrderExpenseItemsEntity item : extraItems) {
             item.setQuantity(MoneyStrategy.Che.getVal().equals(item.getMoneyStrategy()) ? 1 : settleWeight);
             // 重新计算金额（totalMoney、settleMoney）
             calculateAndSetItemMoney(item);
         }
-        
+
         // 批量更新付费项（包含quantity和所有金额字段）
         orderExpenseItemsService.updateBatchById(extraItems);