public class Ship {
    private String mmsi;
    private String utc;
   


    public String getMmsi() {
        return mmsi;
    }

    public void setMmsi(String mmsi) {
        this.mmsi = mmsi;
    }

    public String getUtc() {
        return utc;
    }

    public void setUtc(String utc) {
        this.utc = utc;
    }
}

public static void insertAllBulk(List<Ship> dataList,String indexName) {
        TransportClient client = null;
        try {
            client = connectionPool.getConnection();
            BulkRequestBuilder builder = client.prepareBulk();
            //請求命令數量
            int z = 0;
            long l2 = System.currentTimeMillis();
            int n = dataList.size();
            if (n != 0) {
                //遍歷列表，每條數據生成一條請求命令
                for (int i = 0; i < n; i++) {
                    Ship data = dataList.remove(0);
                    if (data != null) {
                        String utc = data.getUtc();
                        if (utc == null || utc.equals("")) {
                            continue;
                        } else {
                            IndexRequestBuilder request = client.prepareIndex(indexName, "_doc").setSource(
                                    XContentFactory.jsonBuilder()
                                            .startObject()
                                            .field("mmsi", data.getMmsi())
                                            .field("utc", utc)
                                            .endObject()
                            );
                            //添加到批量請求
                            builder.add(request);
                            z++;
                        }
                    }
                }
                //命令數不為零
                if (z != 0) {
                    long l3 = System.currentTimeMillis();
                    logger2.info("生成請求耗時：" + (l3 - l2));
                    //執行批量請求，獲取結果
                    BulkResponse bulkItemResponses = builder.get();
                    if (bulkItemResponses.hasFailures()) {
                        logger2.error(bulkItemResponses.buildFailureMessage());
                    }
                    long l4 = System.currentTimeMillis();
                    logger2.info("執行并返回結果耗時：" + (l4 - l3));
                    long millis = bulkItemResponses.getTook().getMillis();
                    dataList.clear();
                    logger2.info("船完成批量導入ES" + n + "個，耗時" + millis);
                }

            }
        } catch (Exception e) {
            e.printStackTrace();
            logger2.error("insertBulk 錯誤", e);
        } finally {
            connectionPool.releaseConnection(client);
        }
    }