List对象属性去重JDK8

一：javabean如下，

public class Student { String name; int age; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } @Override public String toString() { return "Student [name=" + name + ", age=" + age + "]"; } public Student(String name, int age) { super(); this.name = name; this.age = age; } public Student() { super(); } }

二：方法如下，

public static void main(String[] args) { Student p1 = new Student("lisi", 11); Student p2 = new Student("lishishi", 11); Student p3 = new Student("lisi", 11); List<Student> persons = Arrays.asList(p1, p2, p3); List<Student> unique = persons.stream().collect(Collectors.collectingAndThen( Collectors.toCollection(() -> new TreeSet<>(Comparator.comparing(Student::getName))), ArrayList::new)); unique.forEach(p -> System.out.println(p)); }

 三：运行结果如下，