package com.smartor.common;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import java.util.function.Function;
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import java.util.stream.Collectors;
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/**
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* 去重工具类
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*/
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public class DistinctByProperty {
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// 创建去重工具方法，根据集合中上属性
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public static <T> List<T> distinctByProperty(
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List<T> list,
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Function<? super T, ?> keyExtractor) {
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Set<Object> seen = new HashSet<>();
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return list.stream()
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.filter(item -> seen.add(keyExtractor.apply(item)))
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.collect(Collectors.toList());
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}
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}
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