string 转化成 string数组

public static String[] stringInArrays(String fields) {
 String[] field = null;
 if (fields != null && fields.length() > 0) {
 field = fields.split(",");
 String first = field[0];
 field[0] = first.substring(first.indexOf("[") + 1);
 String last = field[field.length - 1];
 field[field.length - 1] = last.substring(0, last.indexOf("]"));


 }
 return field;
}