code: private static void initEncryptCert() {
  		LogUtil.writeLog("加载敏感信息加密证书==>"+SDKConfig.getConfig().getEncryptCertPath());
  		if (!isEmpty(SDKConfig.getConfig().getEncryptCertPath())) {
  			encryptCert = initCert(SDKConfig.getConfig().getEncryptCertPath());
  			LogUtil.writeLog("Load EncryptCert Successful");
  		} else {
  			LogUtil.writeLog("WARN: acpsdk.encryptCert.path is empty");
  		}
  	}
docs: 用配置文件acp_sdk.properties配置路径 加载银联公钥上级证书（中级证书）