📅  最后修改于: 2022-03-11 14:52:23.010000             🧑  作者: Mango
String emptyString = new String();
result = StringUtils.defaultIfEmpty(emptyString, "default");
System.out.println(result);
String nullString = null;
result = StringUtils.defaultIfEmpty(nullString, "default");
System.out.println(result);