1. public class SaltUtils {
    2.     /**
    3.      * 生成salt的静态方法
    4.      * @param n
    5.      * @return
    6.      */
    7.     public static String getSalt(int n){
    8.         char[] chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*()".toCharArray();
    10.         StringBuffer stringBuffer = new StringBuffer();
    11.         for(int i = 0;i < n;i++){
    12.             char aChar = chars[new Random().nextInt(chars.length)];
    13.             stringBuffer.append(aChar);
    14.         }
    15.         return stringBuffer.toString();
    16.     }
    18.     public static void main(String[] args) {
    19.         String salt = getSalt(8);
    20.         System.out.println(salt);
    22.     }
    23. }