Java 9引入了List.of():

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

这段代码会有帮助，

String myStr = "item1,item2,item3";
List myList = Arrays.asList(myStr.split(","));

此方法将字符串转换为一个数组，并接受两个参数:要转换的字符串和分隔字符串中的值的字符。它转换它，然后返回转换后的数组。

private String[] convertStringToArray(String stringIn, String separators){
    
    // separate string into list depending on separators
    List<String> tempList = Arrays.asList(stringIn.split(separators));
    
    // create a new pre-populated array based on the size of the list
    String[] itemsArray = new String[tempList.size()];
    
    // convert the list to an array
    itemsArray = tempList.toArray(itemsArray);
    
    return itemsArray;
}

使用Java 8流的另外两个扩展版本如下所示

List<String> stringList1 = Arrays.stream(commaSeparated.split(",")).map(String::trim).collect(Collectors.toList());
List<String> stringList2 = Stream.of(commaSeparated.split(",")).map(String::trim).collect(Collectors.toList());

两个步骤:

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

我通常使用预编译模式的列表。而且这也更通用一些，因为它可以考虑一些listToString表达式后面的括号。

private static final Pattern listAsString = Pattern.compile("^\\[?([^\\[\\]]*)\\]?$");

private List<String> getList(String value) {
  Matcher matcher = listAsString.matcher((String) value);
  if (matcher.matches()) {
    String[] split = matcher.group(matcher.groupCount()).split("\\s*,\\s*");
    return new ArrayList<>(Arrays.asList(split));
  }
  return Collections.emptyList();