parallelStream

filter.add(word));"> filter.add(word));"> filter.add(word));">

List<String> array = Arrays.asList(content.split(","));

array.parallelStream().forEach(word -> filter.add(word));

要看filter是不是是不是线程安全的，ArrayList是线程不安全的，使用CopyOnWriteArrayList即可

数组转CopyOnWriteArrayList

*CopyOnWriteArrayList<String> array = new CopyOnWriteArrayList<>(content.split(","));*