From 252766e40f844145579317509cf5136a8e6d2de4 Mon Sep 17 00:00:00 2001
From: buhuazhen <hua100783@gmail.com>
Date: 星期三, 22 四月 2026 12:00:13 +0800
Subject: [PATCH] fix(service): 修复空列表处理避免空指针异常

---
 src/main/java/com/ruoyi/sales/service/impl/SalesLedgerProductServiceImpl.java |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/main/java/com/ruoyi/sales/service/impl/SalesLedgerProductServiceImpl.java b/src/main/java/com/ruoyi/sales/service/impl/SalesLedgerProductServiceImpl.java
index 8b84e12..da110dc 100644
--- a/src/main/java/com/ruoyi/sales/service/impl/SalesLedgerProductServiceImpl.java
+++ b/src/main/java/com/ruoyi/sales/service/impl/SalesLedgerProductServiceImpl.java
@@ -1,5 +1,6 @@
 package com.ruoyi.sales.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.mapper.BaseMapper;
@@ -286,11 +287,14 @@
             //鏂板鐢熶骇璁㈠崟宸ヨ壓璺嚎瀛愯〃
             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));
 
+            }
             for (ProcessRouteItem processRouteItem : processRouteItems) {
                 ProductProcessRouteItem productProcessRouteItem = new ProductProcessRouteItem();
                 productProcessRouteItem.setProductModelId(processRouteItem.getProductModelId());

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