fix：生产工单中的物料需求功能开发

ktg-mes/src/main/java/com/ktg/mes/pro/controller/ProWorkorderController.java

@@ -25,9 +25,8 @@ import org.springframework.web.bind.annotation.*;
 
 import javax.servlet.http.HttpServletResponse;
 import java.math.BigDecimal;
-import java.util.ArrayList;
+import java.util.*;
-import java.util.Iterator;
+import java.util.stream.Collectors;
-import java.util.List;
 
 /**
  * 生产工单Controller
@@ -228,7 +227,25 @@ public class ProWorkorderController extends BaseController
                 result.addAll(getBoms(theBom,bom.getQuantity(),0));
             }
         }
-        return getDataTable(result);
+        TableDataInfo dataTable = getDataTable(result);
+        List<MdProductBom> rows = (List<MdProductBom>) dataTable.getRows();
+        // 使用Map来合并对象
+        Map<String, MdProductBom> map = new HashMap<>();
+        for (MdProductBom bom : rows) {
+            String bomItemCode = bom.getBomItemCode();
+            if (map.containsKey(bomItemCode)) {
+                MdProductBom existingObj = map.get(bomItemCode);
+                existingObj.setQuantity(existingObj.getQuantity().add(bom.getQuantity()) );
+            } else {
+                map.put(bomItemCode, bom);
+            }
+        }
+        // 从Map中获取去重且合并后的对象集合
+        Collection<MdProductBom> mergedCollection = map.values();
+        // （可选）将结果转换回List
+        List<MdProductBom> mergedList = mergedCollection.stream().collect(Collectors.toList());
+        dataTable.setRows(mergedList);
+        return dataTable;
     }
 
     private List<MdProductBom> getBoms(MdProductBom item,BigDecimal quantity,int count){