springboot引入elasticsearch依赖冲突问题记录

背景：项目要同时引入<dependency><groupId>org.elasticsearch</groupId><artifactId>elasticsearch</artifactId></dependency><dependency><groupId>org.elasticsearch.clie

嗯哼哈吼嘻

3216人浏览 · 2021-11-22 17:48:08

嗯哼哈吼嘻 · 2021-11-22 17:48:08 发布

背景：项目要同时引入

<dependency>
       <groupId>org.elasticsearch</groupId>
       <artifactId>elasticsearch</artifactId>
</dependency>
<dependency>
       <groupId>org.elasticsearch.client</groupId>
       <artifactId>elasticsearch-rest-high-level-client</artifactId>
</dependency>

需要用到elasticsearch低版本依赖（高版本该类过时）的TransportClient类，来获取索引的数据量大小（elasticsearch-rest-high-level-client依赖没有这个api），

同时因为之前代码都使用elasticsearch-rest-high-level-client依赖进行写，所以尽可能不改动。

问题：高版本elasticsearch依赖过时，elasticsearch-rest-high-level-client又没有获取索引的数据量大小的api，且elasticsearch-rest-high-level-client内部自带elasticsearch，所以需要依赖包版本都一致。

方法：因此将es依赖包版本都降低，尽可能的新，同时TransportClient类不过时。

最终版本定为6.8.15，

<dependency>
        <groupId>org.elasticsearch</groupId>
        <artifactId>elasticsearch</artifactId>
        <version>6.8.15</version>
</dependency>
<dependency>
        <groupId>org.elasticsearch.client</groupId>
        <artifactId>elasticsearch-rest-high-level-client</artifactId>
        <version>6.8.15</version>
</dependency>

然后进行es获取索引数据量大小，

@Override
    public List<StoragePO> syncStorage(DatabasePO databasePO) {
        List<StoragePO> storagePOList = new ArrayList<>();
        ConnectionPO connectionPO = connectionDao.selectById(databasePO.getConnectionId());

        RestHighLevelClient restHighLevelClient = init(databasePO, new ArrayList<>());
        try {
            //连接数据库
            Settings settings = Settings.builder().put("cluster.name", "elasticsearch")
                    .put("client.transport.sniff", true)
                    .build();
            TransportClient client = new PreBuiltTransportClient(settings);
            TransportAddress address = new TransportAddress(InetAddress.getByName(connectionPO.getIp()), connectionPO.getPort());
            client.addTransportAddress(address);

            //获取所有表
            GetIndexRequest request = new GetIndexRequest("*");
            GetIndexResponse response = restHighLevelClient.indices().get(request, RequestOptions.DEFAULT);
            // 获取所有的索引
            String[] indices = response.getIndices();
            for (String index : indices) {
                StoragePO storagePO = storageService.genarateStorage(databasePO, index);
                IndicesStatsResponse indicesStatsResponse = client.admin().indices().prepareStats(index).all().execute().actionGet();
                CommonStats total = indicesStatsResponse.getTotal();
                storagePO.setCapacity((int) (total.getStore().getSizeInBytes() / 2.0));
                storagePOList.add(storagePO);
            }
        } catch (Exception e) {
            e.printStackTrace();
            log.error("同步存在错误：" + e.getMessage());
        }
        return storagePOList;
    }