fix(service): 修复空列表处理避免空指针异常

buhuazhen

2026-04-22 252766e40f844145579317509cf5136a8e6d2de4

 src/main/java/com/ruoyi/production/service/impl/ProductOrderServiceImpl.java

@@ -1,5 +1,6 @@
package com.ruoyi.production.service.impl;

import cn.hutool.core.collection.CollUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
@@ -23,6 +24,7 @@
import java.math.BigDecimal;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
@@ -75,11 +77,14 @@
        productProcessRouteMapper.insert(productProcessRoute);
        //新增生产订单下的工艺路线子表
        List<ProcessRouteItem> processRouteItems = processRouteItemMapper.selectList(new QueryWrapper<ProcessRouteItem>().lambda().eq(ProcessRouteItem::getRouteId, processRoute.getId()));
        Map<Long, ProductProcess> productProcessMap = productProcessService
                .list(new LambdaQueryWrapper<ProductProcess>().in(ProductProcess::getId, processRouteItems.stream().map(ProcessRouteItem::getProcessId).collect(Collectors.toList())))
                .stream()
                .collect(Collectors.toMap(ProductProcess::getId, productProcess -> productProcess));
        Map<Long, ProductProcess> productProcessMap = new HashMap<>();
        if(CollUtil.isNotEmpty(processRouteItems)){
            productProcessMap = productProcessService
                    .list(new LambdaQueryWrapper<ProductProcess>().in(ProductProcess::getId, processRouteItems.stream().map(ProcessRouteItem::getProcessId).collect(Collectors.toList())))
                    .stream()
                    .collect(Collectors.toMap(ProductProcess::getId, productProcess -> productProcess));

        }
        // 生成当前日期的前缀：年月日
        for (ProcessRouteItem processRouteItem : processRouteItems) {
            ProductProcessRouteItem productProcessRouteItem = new ProductProcessRouteItem();