java 字符串按大小（占字节数）切分

工作中可能会遇到字符串按照占字节数大小进行切分的需求，写了一个方法，用于实现这个功能
public static List<String> splitBySize(String value, int length) {
char[] cs = value.toCharArray();
StringBuilder result = new StringBuilder();
List<String> resultList = new ArrayList<String>();
int index = 0;
for (char c: cs){
index += String.valueOf(c).getBytes().length;
if (index > length){
resultList.add(result.toString());
result.delete(0,index-1);
index = 0;
}else {
result.append(c);
}
}
return resultList;
}