只要最高分

src/main/java/com/viontech/match/service/PersonService.java

@@ -269,7 +269,9 @@ public class PersonService {
             matchResultSize = size;
         }
 
-        Stream<Person> stream = matchResult.stream().sorted(Comparator.comparingDouble(Person::getScore).reversed());
+        Map<String, Person> collect = matchResult.stream().collect(Collectors.toMap(Person::getPersonId, x -> x, (a, b) -> a.getScore() >= b.getScore() ? a : b));
+
+        Stream<Person> stream = collect.values().stream().sorted(Comparator.comparingDouble(Person::getScore).reversed());
         if (matchResult.size() > matchResultSize) {
             stream = stream.limit(matchResultSize);
         }