import org.apache.curator.ensemble.exhibitor.DefaultExhibitorRestClient; //导入依赖的package包/类
private CuratorFramework makeCurator(final String connectString, int baseSleepTimeMs, int maxRetries, int exhibitorPort, String exhibitorRestPath, int pollingMs)
{
    List<String>    hostnames = Lists.newArrayList();
    String[]        parts = connectString.split(",");
    for ( String spec : parts )
    {
        String[]        subParts = spec.split(":");
        try
        {
            if ( subParts.length != 2 )
            {
                log.error("Bad connection string: " + connectString);
                return null;
            }
        }
        catch ( NumberFormatException e )
        {
            log.error("Bad connection string: " + connectString);
            return null;
        }

        hostnames.add(subParts[0]);
    }

    ExponentialBackoffRetry retryPolicy = new ExponentialBackoffRetry(baseSleepTimeMs, maxRetries);
    Exhibitors.BackupConnectionStringProvider   backupConnectionStringProvider = new Exhibitors.BackupConnectionStringProvider()
    {
        @Override
        public String getBackupConnectionString() throws Exception
        {
            return connectString;
        }
    };

    CuratorFrameworkFactory.Builder builder = CuratorFrameworkFactory
        .builder()
        .connectString(connectString)
        .retryPolicy(retryPolicy);
    if ( exhibitorPort > 0 )
    {
        Exhibitors                  exhibitors = new Exhibitors(hostnames, exhibitorPort, backupConnectionStringProvider);
        ExhibitorEnsembleProvider   ensembleProvider = new ExhibitorEnsembleProvider(exhibitors, new DefaultExhibitorRestClient(), exhibitorRestPath + "exhibitor/v1/cluster/list", pollingMs, retryPolicy);
        builder = builder.ensembleProvider(ensembleProvider);
    }
    else
    {
        log.warn("Exhibitor on the shared ZooKeeper config ensemble is not being used.");
    }
    return builder.build();
}