md5,base64加密
import java.security.MessageDigest; import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.digest.DigestUtils;
public class MD5Util { /*** * MD5加密 生成md5码 * @param 待加密字符串 * @return 返回md5码 */ public static String md5Encode(String inStr) throws Exception { MessageDigest md5 = null; try { md5 = MessageDigest.getInstance("MD5"); } catch (Exception e) { System.out.println(e.toString()); e.printStackTrace(); return ""; } byte[] byteArray = inStr.getBytes("UTF-8"); byte[] md5Bytes = md5.digest(byteArray); StringBuffer hexValue = new StringBuffer(); for (int i = 0; i < md5Bytes.length; i++) { int val = ((int) md5Bytes[i]) & 0xff; if (val < 16) { hexValue.append("0"); } hexValue.append(Integer.toHexString(val)); } return hexValue.toString(); } /** * 测试主函数 * @param args * @throws Exception */ public static void main(String args[]) throws Exception { String appSecret = new String("12345678"); String str = appSecret+WriterOrReaderTxt.readTxt()+appSecret; String md5=md5Encode(str); System.out.println("MD5后:" + md5); System.out.println("Base64后:" +Base64.encodeBase64String(md5.getBytes("UTF-8")));
String result = new String(Base64.encodeBase64(DigestUtils.md5(str.getBytes("UTF-8"))),"UTF-8");
System.out.println(result);
}
}