@Test
public void testSignHeaders2() {

  WSParams params = WSParams.create();
  //params.api("api");
  //params.version("1.0.0");
  //params.nonce(true);
  params.accessKey("ak");
  params.secretKey("sk");
  params.fingerPrinter("wiseking");
  params.timestamp(false);
  Map<String, String> headers = WSClientSDK.generateSignHeaders(params);
  System.out.println(headers);
  Assert.assertTrue("can not include api", !headers.containsKey(CsbSDKConstants.API_NAME_KEY));
}