MD5加密

来源：互联网发布：中国邮政网络移动app 编辑：程序博客网时间：2024/05/29 14:55

import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;public class Str2MD5 {    public static void main(String[] args) {        MD5("sunzn");    }    private static String MD5(String sourceStr) {        String result = "";        try {            MessageDigest md = MessageDigest.getInstance("MD5");            md.update(sourceStr.getBytes());            byte b[] = md.digest();            int i;            StringBuffer buf = new StringBuffer("");            for (int offset = 0; offset < b.length; offset++) {                i = b[offset];                if (i < 0)                    i += 256;                if (i < 16)                    buf.append("0");                buf.append(Integer.toHexString(i));            }            result = buf.toString();            System.out.println("MD5(" + sourceStr + ",32) = " + result);            System.out.println("MD5(" + sourceStr + ",16) = " + buf.toString().substring(8, 24));        } catch (NoSuchAlgorithmException e) {            System.out.println(e);        }        return result;    }}

MD5(sunzn,32) = 40379db889f9124819228947faaeb1f7MD5(sunzn,16) = 89f9124819228947

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