code: public static String getCertIdByKeyStoreMap(String certPath, String certPwd) {
  		if (!keyStoreMap.containsKey(certPath)) {
  			// 缓存中未查询到,则加载RSA证书
  			loadSignCert(certPath, certPwd);
  		}
  		return getCertIdIdByStore(keyStoreMap.get(certPath));
  	}
docs: 通过签名私钥证书路径，密码获取私钥证书certId
  @param certPath
  @param certPwd
  @return