生成随机字符串工具示例
public class SaltUtils { /** * 生成salt的静态方法 * @param n * @return */ public static String getSalt(int n){ char[] chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567890!@#$%^&*()".toCharArray(); StringBuilder sb = new StringBuilder(); for (int i = 0; i < n; i++) { char aChar = chars[new Random().nextInt(chars.length)]; sb.append(aChar); } return sb.toString(); } }