Java8 Stream List<T> 转 Array 数组 Long[]

Java8 Stream List<T> 转 Array 数组 Long[]

List<FaAdmin> list = Lists.newArrayList();
list.add(new FaAdmin(100L, "a"));
list.add(new FaAdmin(101L, "b"));
list.add(new FaAdmin(102L, "c"));
list.add(new FaAdmin(100L, "a"));

Long[] ids = list.stream().map(FaAdmin::getId).toArray(Long[]::new);

System.out.println(ids);