fix(wms): 简化库存余额并发补行处理

库存变更时，缺失库存余额行改为逐条插入；遇到唯一键冲突时回查并复用已有库存行，避免批量插入异常包装导致并发补行失败。

fix(wms): 简化库存余额并发补行处理
库存变更时，缺失库存余额行改为逐条插入；遇到唯一键冲突时回查并复用已有库存行，避免批量插入异常包装导致并发补行失败。
YunaiV
1 parent 4749a1e2
Showing 2 changed files with 49 additions and 15 deletions
yudao-module-wms/src/main/java/cn/iocoder/yudao/module/wms/service/inventory/WmsInventoryServiceImpl.java
yudao-module-wms/src/test/java/cn/iocoder/yudao/module/wms/service/inventory/WmsInventoryServiceImplTest.java
@@ -149,20 +149,6 @@ public class WmsInventoryServiceImpl implements WmsInventoryService {
     }
     private List<WmsInventoryDO> createMissingInventoryList(List<WmsInventoryDO> missingInventories) {
-        // 优先批量插入缺失库存行；并发唯一键冲突时，再逐个插入并回查冲突行。
-        List<WmsInventoryDO> newInventories = convertList(missingInventories, missingInventory ->
-                new WmsInventoryDO().setSkuId(missingInventory.getSkuId()).setWarehouseId(missingInventory.getWarehouseId())
-                        .setQuantity(BigDecimal.ZERO));
-        try {
-            inventoryMapper.insertBatch(newInventories);
-            return newInventories;
-        } catch (DuplicateKeyException ex) {
-            // 并发事务可能已经补齐部分库存行，降级为逐个插入并回查唯一键冲突的行。
-            log.warn("[createMissingInventoryList][missingInventories({}) 批量插入库存行冲突，降级为逐个插入]",
-                    missingInventories, ex);
-        }
-
-        // 批量插入失败后逐条补齐；单条唯一键冲突时，回查并使用并发事务创建的库存行。
         List<WmsInventoryDO> createdInventories = new ArrayList<>(missingInventories.size());
         for (WmsInventoryDO missingInventory : missingInventories) {
             WmsInventoryDO inventory = new WmsInventoryDO().setSkuId(missingInventory.getSkuId())
@@ -173,7 +159,7 @@ public class WmsInventoryServiceImpl implements WmsInventoryService {
             } catch (DuplicateKeyException ex) {
                 inventory = inventoryMapper.selectBySkuIdAndWarehouseId(
                         missingInventory.getSkuId(), missingInventory.getWarehouseId());
-                log.warn("[createMissingInventoryList][missingInventory({}) 插入库存行冲突，回查已有库存行]", missingInventory, ex);
+                log.warn("[createMissingInventoryList][missingInventory({}) 插入库存行冲突，回查已有库存行]", missingInventory);
                 if (inventory == null) {
                     throw ex;
                 }
@@ -25,10 +25,16 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
 import static cn.iocoder.yudao.framework.test.core.util.AssertUtils.assertServiceException;
 import static cn.iocoder.yudao.module.wms.enums.ErrorCodeConstants.INVENTORY_QUANTITY_NOT_ENOUGH;
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.mockito.Mockito.when;
@@ -220,6 +226,48 @@ public class WmsInventoryServiceImplTest extends BaseDbUnitTest {
     }
     @Test
+    public void testChangeInventory_concurrentCreateSameInventoryOnlyOneBalance() throws Exception {
+        // mock 数据
+        WmsItemDO item = createItem("ITEM-001", "红富士苹果");
+        WmsItemSkuDO sku = createSku(item.getId(), "SKU-001", "10kg 箱装");
+        int threadCount = 4;
+        CountDownLatch readyLatch = new CountDownLatch(threadCount);
+        CountDownLatch startLatch = new CountDownLatch(1);
+        ExecutorService executorService = Executors.newFixedThreadPool(threadCount);
+        List<Future<?>> futures = new ArrayList<>(threadCount);
+        for (int i = 0; i < threadCount; i++) {
+            futures.add(executorService.submit(() -> {
+                readyLatch.countDown();
+                try {
+                    startLatch.await();
+                } catch (InterruptedException ex) {
+                    Thread.currentThread().interrupt();
+                    throw new IllegalStateException(ex);
+                }
+                inventoryService.changeInventory(createChangeReq(sku.getId(), 100L, "1.00"));
+            }));
+        }
+
+        try {
+            // 调用
+            assertTrue(readyLatch.await(5, TimeUnit.SECONDS));
+            startLatch.countDown();
+            for (Future<?> future : futures) {
+                future.get(10, TimeUnit.SECONDS);
+            }
+        } finally {
+            executorService.shutdownNow();
+        }
+
+        // 断言：并发补行后仍只有一条库存余额，数量累计正确
+        List<WmsInventoryDO> inventories = inventoryMapper.selectListByKeys(Collections.singletonList(
+                new WmsInventoryDO().setSkuId(sku.getId()).setWarehouseId(100L)));
+        assertEquals(1, inventories.size());
+        assertEquals(0, new BigDecimal("4.00").compareTo(inventories.get(0).getQuantity()));
+        assertEquals(threadCount, inventoryHistoryMapper.selectCount());
+    }
+
+    @Test
     public void testChangeInventory_quantityNotEnough() {
         // mock 数据
         WmsItemDO item = createItem("ITEM-001", "红富士苹果");