gongchunyi
2 天以前 2a4b95fd5718712ab08f63db49702dbbab2a158d
src/main/java/com/ruoyi/basic/service/impl/ProductServiceImpl.java
@@ -13,19 +13,25 @@
import com.ruoyi.basic.pojo.ProductModel;
import com.ruoyi.basic.service.IProductService;
import com.ruoyi.basic.vo.ProductModelVo;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.bean.BeanUtils;
import com.ruoyi.common.utils.poi.ExcelUtil;
import com.ruoyi.framework.web.domain.AjaxResult;
import jakarta.servlet.http.HttpServletResponse;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
@Service
@AllArgsConstructor
@Slf4j
public class ProductServiceImpl extends ServiceImpl<ProductMapper, Product> implements IProductService {
    private ProductMapper productMapper;
@@ -94,17 +100,18 @@
        if (ObjectUtils.isEmpty(productDto.getParentId())) {
            throw new IllegalArgumentException("请选择父节点");
        }
        String productName = StringUtils.trim(productDto.getProductName());
        if (StringUtils.isEmpty(productName)) {
            throw new IllegalArgumentException("产品名称不能为空");
        }
        productDto.setProductName(productName);
        checkProductNameUnique(productDto.getParentId(), productName, productDto.getId());
        if (productDto.getId() == null) {
            // 新增产品逻辑
            if (productDto.getParentId() == null) {
                // 若未指定父节点,默认为根节点(parentId 设为 null)
                productDto.setParentId(null);
            } else {
                // 检查父节点是否存在(可选,根据业务需求)
                Product parent = productMapper.selectById(productDto.getParentId());
                if (parent == null) {
                    throw new IllegalArgumentException("父节点不存在,无法添加子产品");
                }
            // 检查父节点是否存在(可选,根据业务需求)
            Product parent = productMapper.selectById(productDto.getParentId());
            if (parent == null) {
                throw new IllegalArgumentException("父节点不存在,无法添加子产品");
            }
            return productMapper.insert(productDto);
        } else {
@@ -118,17 +125,53 @@
        }
    }
    private void checkProductNameUnique(Long parentId, String productName, Long currentId) {
        LambdaQueryWrapper<Product> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Product::getParentId, parentId)
                .eq(Product::getProductName, productName)
                .ne(currentId != null, Product::getId, currentId)
                .last("limit 1");
        Product duplicateProduct = productMapper.selectOne(queryWrapper);
        if (duplicateProduct != null) {
            throw new IllegalArgumentException("对应的" + productName + "已经存在");
        }
    }
    @Override
    public void exportImportTemplate(HttpServletResponse response) {
        String templatePath = "static/产品导入模板.xlsx";
        try (InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream(templatePath)) {
            if (inputStream == null) {
                throw new FileNotFoundException("模板文件不存在:" + templatePath);
            }
            response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
            response.setCharacterEncoding("utf-8");
            String fileName = URLEncoder.encode("产品导入模板.xlsx", "utf-8").replaceAll("\\+", "%20");
            response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName);
            try (OutputStream outputStream = response.getOutputStream()) {
                byte[] buffer = new byte[1024];
                int len;
                while ((len = inputStream.read(buffer)) > 0) {
                    outputStream.write(buffer, 0, len);
                }
                outputStream.flush();
            }
        } catch (IOException e) {
            log.error("导出产品导入模板失败", e);
            try {
                response.getWriter().write("模板导出失败:" + e.getMessage());
            } catch (IOException ex) {
                log.error("响应输出错误", ex);
            }
        }
    }
    @Override
    public int delProductByIds(Long[] ids) {
        // 1. 删除子表 product_model 中关联的数据
        LambdaQueryWrapper<ProductModel> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.in(ProductModel::getProductId, ids);
        productModelMapper.delete(queryWrapper);
        // 2. 删除主表 product 数据
        int deleteCount = productMapper.deleteBatchIds(Arrays.asList(ids));
        return deleteCount;
        return productMapper.deleteBatchIds(Arrays.asList(ids));
    }
}