From f1d49fb78f0aae9cad9c45909b21fdef560b29e3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=8A=93=E8=9B=99=E5=B8=88?= <770492966@qq.com>
Date: Sat, 16 Jul 2022 13:44:49 +0800
Subject: [PATCH] =?UTF-8?q?StreamUtils=E4=BC=98=E5=8C=96=E5=88=86=E7=BB=84?=
 =?UTF-8?q?=E6=96=B9=E6=B3=95=E8=BF=94=E5=9B=9E=E7=94=B1HashMap=E6=97=A0?=
 =?UTF-8?q?=E5=BA=8F=E8=BD=AC=E4=B8=BALinkedHashMap=E6=9C=89=E5=BA=8F?=
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Content-Transfer-Encoding: 8bit

---
 .../main/java/com/ruoyi/common/utils/StreamUtils.java  | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/StreamUtils.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/StreamUtils.java
index 0de2784a0..99d58979f 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/StreamUtils.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/StreamUtils.java
@@ -124,8 +124,8 @@ public class StreamUtils {
             return MapUtil.newHashMap();
         }
         return collection
-            .stream()
-            .collect(Collectors.groupingBy(key, Collectors.toList()));
+                .stream()
+                .collect(Collectors.groupingBy(key, LinkedHashMap::new, Collectors.toList()));
     }
 
     /**
@@ -146,7 +146,8 @@ public class StreamUtils {
         }
         return collection
             .stream()
-            .collect(Collectors.groupingBy(key1, Collectors.groupingBy(key2, Collectors.toList())));
+            .collect(Collectors.groupingBy(key1, LinkedHashMap::new,
+                    Collectors.groupingBy(key2, LinkedHashMap::new, Collectors.toList())));
     }
 
     /**
@@ -167,7 +168,8 @@ public class StreamUtils {
         }
         return collection
             .stream()
-            .collect(Collectors.groupingBy(key1, Collectors.toMap(key2, Function.identity(), (l, r) -> l)));
+            .collect(Collectors.groupingBy(key1, LinkedHashMap::new,
+                    Collectors.toMap(key2, Function.identity(), (l, r) -> l)));
     }
 
     /**