lambda對實體的某個屬性進行去重

實體類：

@Data
class People {
    private String name;
    private int age;
    private String detail;

    public People(String name, int age) {
        this.name = name;
        this.age = age;
    }
}
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經過lambda語法某個屬性去重：

peopleList = peopleList.stream().collect(Collectors.collectingAndThen(
                Collectors.toCollection(() ->
                        new TreeSet<>(Comparator.comparing(People::getName))
                ), ArrayList::new)
);
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