你可以这样做。

这样就去掉了空白和用逗号分隔的地方，你不需要担心空白。

    String myString= "A, B, C, D";

    //Remove whitespace and split by comma 
    List<String> finalString= Arrays.asList(myString.split("\\s*,\\s*"));

    System.out.println(finalString);

在Java 8中将集合转换为逗号分隔的字符串

listOfString对象包含["A"，"B"，"C"，"D"]个元素-

listOfString.stream().map(ele->"'"+ele+"'").collect(Collectors.joining(","))

输出结果为:- ' A ', ' B ', ' C ', ' D '

和转换字符串数组到列表在Java 8

    String string[] ={"A","B","C","D"};
    List<String> listOfString = Stream.of(string).collect(Collectors.toList());

List<String> items = Arrays.asList(s.split("[,\\s]+"));

Java 9引入了List.of():

String commaSeparated = "item1 , item2 , item3";
List<String> items = List.of(commaSeparated.split(" , "));

两个步骤:

String [] = commaSeparated.split项目(“\ \ s * \ \ s *”); List<String> container = Arrays.asList(items);

List<String> items= Stream.of(commaSeparated.split(","))
     .map(String::trim)
     .collect(Collectors.toList());