package com.ruoyi.production.service.impl;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.ruoyi.basic.pojo.Product;
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import com.ruoyi.basic.pojo.ProductModel;
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import com.ruoyi.basic.service.IProductModelService;
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import com.ruoyi.basic.service.IProductService;
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import com.ruoyi.common.exception.ServiceException;
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import com.ruoyi.common.utils.StringUtils;
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import com.ruoyi.common.utils.poi.ExcelUtil;
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import com.ruoyi.framework.web.domain.AjaxResult;
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import com.ruoyi.production.dto.BomImportDto;
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import com.ruoyi.production.dto.ProductBomDto;
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import com.ruoyi.production.dto.ProductStructureDto;
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import com.ruoyi.production.mapper.ProductBomMapper;
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import com.ruoyi.production.pojo.ProductBom;
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import com.ruoyi.production.pojo.ProductProcess;
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import com.ruoyi.production.pojo.ProductStructure;
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import com.ruoyi.production.service.ProductBomService;
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import com.ruoyi.production.service.ProductProcessService;
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import com.ruoyi.production.service.ProductStructureService;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import org.springframework.web.multipart.MultipartFile;
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import javax.servlet.http.HttpServletResponse;
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import java.math.BigDecimal;
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import java.util.*;
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import java.util.stream.Collectors;
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/**
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* <p>
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* BOM主表 服务实现类
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* </p>
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*
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* @author 芯导软件（江苏）有限公司
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* @since 2026-01-15 09:59:27
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*/
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@Service
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public class ProductBomServiceImpl extends ServiceImpl<ProductBomMapper, ProductBom> implements ProductBomService {
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@Autowired
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private IProductService productService;
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@Autowired
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private ProductBomMapper productBomMapper;
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@Autowired
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private IProductModelService productModelService;
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@Autowired
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private ProductStructureService productStructureService;
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@Autowired
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private ProductProcessService productProcessService;
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@Override
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public IPage<ProductBomDto> listPage(Page page, ProductBomDto productBomDto) {
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return productBomMapper.listPage(page, productBomDto);
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public AjaxResult add(ProductBom productBom) {
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boolean save = productBomMapper.insert(productBom) > 0;
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if (save) {
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String no = "BM." + String.format("%05d", productBom.getId());
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productBom.setBomNo(no);
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productBomMapper.updateById(productBom);
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// 查询出产品模型信息
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if (productBom.getProductModelId() == null) {
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throw new ServiceException("请选择产品模型");
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}
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ProductModel productModel = productModelService.getById(productBom.getProductModelId());
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if (productModel == null) {
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throw new ServiceException("选择的产品模型不存在");
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}
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// 添加初始的产品结构
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ProductStructure productStructure = new ProductStructure();
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productStructure.setProductModelId(productBom.getProductModelId());
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productStructure.setUnit(productModel.getUnit());
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productStructure.setUnitQuantity(BigDecimal.valueOf(1));
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productStructure.setBomId(productBom.getId());
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productStructureService.save(productStructure);
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return AjaxResult.success();
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}
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return AjaxResult.error();
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public AjaxResult uploadBom(MultipartFile file) {
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ExcelUtil<BomImportDto> util = new ExcelUtil<>(BomImportDto.class);
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List<BomImportDto> list;
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try {
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list = util.importExcel(file.getInputStream());
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} catch (Exception e) {
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return AjaxResult.error("Excel解析失败");
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}
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if (list == null || list.isEmpty()) return AjaxResult.error("数据为空");
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// 处理工序
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list.forEach(dto -> {
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dto.setParentName(clean(dto.getParentName()));
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dto.setParentSpec(clean(dto.getParentSpec()));
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dto.setChildName(clean(dto.getChildName()));
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dto.setChildSpec(clean(dto.getChildSpec()));
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});
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handleProcess(list);
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Map<String, Long> processMap = productProcessService.list().stream()
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.collect(Collectors.toMap(ProductProcess::getName, ProductProcess::getId, (k1, k2) -> k1));
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// 创建 BOM 数据
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BomImportDto first = list.get(0);
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ProductModel rootModel = findModel(first.getParentName(), first.getParentSpec());
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ProductBom bom = new ProductBom();
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bom.setProductModelId(rootModel.getId());
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bom.setVersion("1.0");
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productBomMapper.insert(bom);
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bom.setBomNo("BM." + String.format("%05d", bom.getId()));
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productBomMapper.updateById(bom);
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// 记录已经插入结构的节点：Key = "名称+规格", Value = structure_id
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Map<String, Long> treePathMap = new HashMap<>();
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for (int i = 0; i < list.size(); i++) {
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BomImportDto dto = list.get(i);
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String parentKey = dto.getParentName() + "|" + dto.getParentSpec();
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String childKey = dto.getChildName() + "|" + dto.getChildSpec();
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//处理根节点,第一行且子项为空
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if (i == 0 && StringUtils.isBlank(dto.getChildName())) {
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ProductStructure rootNode = new ProductStructure();
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rootNode.setBomId(bom.getId());
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rootNode.setParentId(null); // 顶层没有父节点
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rootNode.setProductModelId(rootModel.getId());
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rootNode.setUnitQuantity(BigDecimal.ONE);
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rootNode.setUnit(rootModel.getUnit());
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productStructureService.save(rootNode);
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treePathMap.put(parentKey, rootNode.getId());
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continue;
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}
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// 处理子层级节点
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// 找到父节点在数据库里的 ID
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Long parentStructureId = treePathMap.get(parentKey);
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if (parentStructureId == null) {
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// 如果 Map 里找不到，说明 Excel 顺序乱了或者数据有误
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throw new ServiceException("导入失败: 父项[" + dto.getParentName() + "]必须在其子项之前定义");
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}
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// 获取子项模型信息
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ProductModel childModel = findModel(dto.getChildName(), dto.getChildSpec());
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// 插入结构表
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ProductStructure node = new ProductStructure();
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node.setBomId(bom.getId());
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node.setParentId(parentStructureId); // 父节点ID
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node.setProductModelId(childModel.getId());
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node.setUnitQuantity(dto.getUnitQty());
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node.setUnit(childModel.getUnit());
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if (processMap.containsKey(dto.getProcess())) {
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node.setProcessId(processMap.get(dto.getProcess()));
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}
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productStructureService.save(node);
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// 把当前子项记录到 Map,作为以后更深层级的父项查找依据
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// 同一父项下的同名子项不需要重复记录
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treePathMap.put(childKey, node.getId());
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}
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return AjaxResult.success("BOM导入成功");
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}
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@Override
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public void exportBom(HttpServletResponse response, Integer bomId) {
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if (bomId == null) {
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return;
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}
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List<ProductStructureDto> treeData = productStructureService.listBybomId(bomId);
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if (treeData == null || treeData.isEmpty()) {
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return;
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}
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// 将树形结构扁平化 使用 BFS算法 导出,按层级顺序
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List<BomImportDto> exportList = new ArrayList<>();
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// Map<ID, Node> idMap 用于查找父节点
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Map<Long, ProductStructureDto> idMap = new HashMap<>();
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populateMap(treeData, idMap);
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// treeData 的第一个是根节点
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for (ProductStructureDto root : treeData) {
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// 添加根节点
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BomImportDto rootRow = new BomImportDto();
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rootRow.setParentName(root.getProductName());
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rootRow.setParentSpec(root.getModel());
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rootRow.setUnitQty(root.getUnitQuantity());
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rootRow.setRemark("");
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exportList.add(rootRow);
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// BFS 遍历-队列
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Queue<ProductStructureDto> queue = new LinkedList<>();
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if (root.getChildren() != null) {
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queue.addAll(root.getChildren());
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}
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while (!queue.isEmpty()) {
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ProductStructureDto child = queue.poll();
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// 查找父节点
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ProductStructureDto parent = idMap.get(child.getParentId());
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if (parent == null) {
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// 除了最外层节点,其他节点的父类肯定是不会为空的
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continue;
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}
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BomImportDto row = new BomImportDto();
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// 父类信息
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row.setParentName(parent.getProductName());
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row.setParentSpec(parent.getModel());
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// 子类信息
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row.setChildName(child.getProductName());
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row.setChildSpec(child.getModel());
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row.setUnitQty(child.getUnitQuantity());
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row.setProcess(child.getProcessName());
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exportList.add(row);
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// 将子节点的子节点加入队列-下一层
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if (child.getChildren() != null && !child.getChildren().isEmpty()) {
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queue.addAll(child.getChildren());
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}
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}
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}
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ExcelUtil<BomImportDto> util = new ExcelUtil<>(BomImportDto.class);
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util.exportExcel(response, exportList, "BOM结构导出");
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}
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private void populateMap(List<ProductStructureDto> nodes, Map<Long, ProductStructureDto> map) {
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if (nodes == null || nodes.isEmpty()) {
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return;
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}
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for (ProductStructureDto node : nodes) {
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map.put(node.getId(), node);
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populateMap(node.getChildren(), map);
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}
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}
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private ProductModel findModel(String name, String spec) {
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Product product = productService.getOne(new LambdaQueryWrapper<Product>()
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.eq(Product::getProductName, name).last("limit 1"));
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if (product == null) throw new ServiceException("产品未维护：" + name);
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ProductModel model = productModelService.getOne(new LambdaQueryWrapper<ProductModel>()
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.eq(ProductModel::getProductId, product.getId())
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.eq(ProductModel::getModel, spec).last("limit 1"));
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if (model == null) throw new ServiceException("规格未维护：" + name + "[" + spec + "]");
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return model;
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}
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private void handleProcess(List<BomImportDto> list) {
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Set<String> processNames = list.stream()
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.map(BomImportDto::getProcess)
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.filter(StringUtils::isNotBlank)
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.collect(Collectors.toSet());
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if (processNames.isEmpty()) {
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return;
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}
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List<ProductProcess> exists = productProcessService.list(
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new LambdaQueryWrapper<ProductProcess>().in(ProductProcess::getName, processNames)
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);
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Set<String> existNames = exists.stream()
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.map(ProductProcess::getName)
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.collect(Collectors.toSet());
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List<ProductProcess> needSave = processNames.stream()
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.filter(n -> !existNames.contains(n))
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.map(n -> {
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ProductProcess p = new ProductProcess();
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p.setName(n);
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return p;
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})
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.collect(Collectors.toList());
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if (!needSave.isEmpty()) {
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productProcessService.saveBatch(needSave);
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needSave.forEach(p -> p.setNo("GX" + String.format("%08d", p.getId())));
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productProcessService.updateBatchById(needSave);
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}
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}
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private String clean(String s) {
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if (s == null) return null;
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return s.replaceAll("[\\u00A0\\u3000]", "").trim();
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}
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}
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