我正在尝试通过 Elastic4s 连接到 ES 集群。我正在使用 github repo 中给出的示例：
import com.sksamuel.elastic4s.ElasticClient
import com.sksamuel.elastic4s.ElasticDsl._
object Test extends App {
val client = ElasticClient.transport(ElasticsearchClientUri(host, port))
// await is a helper method to make this operation synchronous instead of async
// You would normally avoid doing this in a real program as it will block your thread
client.execute { index into "bands" / "artists" fields "name"->"coldplay" }.await
// we need to wait until the index operation has been flushed by the server.
// this is an important point - when the index future completes, that doesn't mean that the doc
// is necessarily searchable. It simply means the server has processed your request and the doc is
// queued to be flushed to the indexes. Elasticsearch is eventually consistent.
// For this demo, we'll simply wait for 2 seconds (default refresh interval is 1 second).
Thread.sleep(2000)
// now we can search for the document we indexed earlier
val resp = client.execute { search in "bands" / "artists" query "coldplay" }.await
println(resp)
}
客户端接受 9434 上的连接，如此处所述 - https://www.elastic.co/guide/en/cloud/current/security.html#security-transport
此外，它会根据选择的构造方式查找 a 或附加elasticsearch:\\到主机和端口。
在运行初始化客户端的行时，我得到Exception in thread "main" java.lang.NoSuchMethodError: scala.Predef$.refArrayOps([Ljava/lang/Object;)[Ljava/lang/Object;
显然我误解了一些东西。请让我知道我做错了什么。
编辑：
作为验证，我有一个 .Net 客户端到 ES，它使用常规的 http 连接。
var node = new Uri(url);
var connectionSettings = new ConnectionSettings(node);
connectionSettings.BasicAuthentication(settings.username,settings.password);
client = new ElasticClient(connectionSettings);
我的目标是实现同样的目标。