HMACSHA1加密

import java.security.InvalidKeyException;import java.security.NoSuchAlgorithmException;import javax.crypto.Mac;import javax.crypto.spec.SecretKeySpec;public class HMACSHA1 {public static String getHMACSHA1(String base, String key) {String result = "";String type = "HmacSHA1";SecretKeySpec secret = new SecretKeySpec(key.getBytes(), type);try {Mac mac = Mac.getInstance(type);mac.init(secret);byte[] digest = mac.doFinal(base.getBytes());StringBuilder sb=new StringBuilder();  for(byte b:digest){  sb.append(byteToString(b));  }result = sb.toString();} catch (InvalidKeyException e) {e.printStackTrace();} catch (NoSuchAlgorithmException e) {e.printStackTrace();}return result;}private static String byteToString(byte ib){  char[] Digit={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};  char[] ob=new char[2];  ob[0]=Digit[(ib>>>4)& 0X0f];  ob[1]=Digit[ib & 0X0F];  String s=new String(ob);  return s;           }  }