import java.security.MessageDigest;

/**

 * 提供SHA加密

 */

public class SHAUtil {

   // 进行SHA-1加密

   public static String SHAEncode(String message) {

      String resultString = null;

      try {

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

         md.update(message.getBytes());

         resultString = bytes2HexString(md.digest());

      } catch (Exception e) {

         e.printStackTrace();

      }

      return resultString;

   }

   // 将Bytes数据转换成16进制字符串格式

   public static String bytes2HexString(byte[] bts) {

      String des = "";

      String tmp = null;

      for (int i = 0; i < bts.length; i++) {

         tmp = (Integer.toHexString(bts[i] & 0xFF));

         if (tmp.length() == 1) {

            des += "0";

         }

         des += tmp;

      }

      return des;

   }

}