import java.security.MessageDigest;

import java.math.BigInteger;

import java.security.NoSuchAlgorithmException;

import java.util.regex.Pattern;

import java.util.List;

import java.util.ArrayList;

import java.util.regex.Matcher;public class Utils

{

/**

* 对字符串md5加密

*

* @param str

* @return

*/

public static String getMD5(String str) throws NoSuchAlgorithmException, NoSuchAlgorithmException

{

// 生成一个MD5加密计算摘要

MessageDigest md = MessageDigest.getInstance("MD5");

// 计算md5函数

md.update(str.getBytes());

// digest()最后确定返回md5 hash值，返回值为8为字符串。因为md5 hash值是16位的hex值，实际上就是8位的字符

// BigInteger函数则将8位的字符串转换成16位hex值，用字符串来表示；得到字符串形式的hash值

return new BigInteger(1, md.digest()).toString(16);

}

public static List<Integer> string2Numbers(String inString)

{

List<Integer> resultList = new ArrayList<Integer>();

String regex = "\\d*";

Pattern p = Pattern.compile(regex);

Matcher m = p.matcher(inString);

while (m.find()) {

if (!"".equals(m.group()))

{

resultList.add(Integer.parseInt( m.group()));

}

}

return resultList;

}

private static void print99X()

{

int x = 9;

int y = 1;

for (int i = 1;i <= x;i++)

{

for (int j = 1; j <= y ;j++)

{

System.out.print(j + "×" + i + "＝" + i * j + " ");

}

System.out.println();

y++;

}

}

}