Java MD5加密

public class MD5Util { public static void main(String[] args) { String string = "0006410822李仕文园区/李仕文大厦/1单元/1层/大门12017-07-03 12:16:352017-07-04 00:00:002017-07-04 23:59:59"; String s = getMD5(string); System.out.println(s); } public static String getMD5(String plainText) { try { MessageDigest md = MessageDigest.getInstance("MD5");//获取MD5实例 md.update(plainText.getBytes("utf-8"));//此处传入要加密的byte类型值 byte[] digest = md.digest();//此处得到的是md5加密后的byte类型值 int i; StringBuilder sb = new StringBuilder(); for (int offset = 0; offset < digest.length; offset++) { i = digest[offset]; if (i < 0){ i += 256; } if (i < 16){ sb.append(0); } sb.append(Integer.toHexString(i).toUpperCase());//通过Integer.toHexString方法把值变为16进制 } return sb.toString();//从下标0开始，length目的是截取多少长度的值 } catch (NoSuchAlgorithmException | UnsupportedEncodingException e) { e.printStackTrace(); return null; } } }