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update 优化 StreamUtils 分组返回有序 Map 性能不变

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疯狂的狮子Li
2022-07-16 22:51:10 +08:00
parent a19a59697f
commit a28f0a28e1
1 changed files with 3 additions and 3 deletions
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6
ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/StreamUtils.java
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@@ -126,7 +126,7 @@ public class StreamUtils {
} }
return collection return collection
.stream() .stream()
.collect(Collectors.groupingBy(key, Collectors.toList())); .collect(Collectors.groupingBy(key, LinkedHashMap::new, Collectors.toList()));
} }
/** /**
@@ -147,7 +147,7 @@ public class StreamUtils {
} }
return collection return collection
.stream() .stream()
.collect(Collectors.groupingBy(key1, Collectors.groupingBy(key2, Collectors.toList()))); .collect(Collectors.groupingBy(key1, LinkedHashMap::new, Collectors.groupingBy(key2, LinkedHashMap::new, Collectors.toList())));
} }
/** /**
@@ -168,7 +168,7 @@ public class StreamUtils {
} }
return collection return collection
.stream() .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)));
} }
/** /**