Basic Java Example Not Working for me

Elastic Stack Elasticsearch
1

Using the basic Java example, here: https://www.elastic.co/guide/en/elasticsearch/client/java-api/current/java-search.html

And having the following Maven dependencies installed:

 <dependency>
        <groupId>org.elasticsearch</groupId>
        <artifactId>elasticsearch</artifactId>
        <version>7.2.0</version>
    </dependency>

    <dependency>
        <groupId>org.elasticsearch.client</groupId>
        <artifactId>elasticsearch-rest-high-level-client</artifactId>
        <version>7.2.0</version>
    </dependency>

The code from the URL above:

SearchResponse response = client.**prepareSearch**("index1", "index2")
.setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
.setQuery(QueryBuilders.termQuery("multi", "test")) // Query
.setPostFilter(QueryBuilders.rangeQuery("age").from(12).to(18)) // Filter
.setFrom(0).setSize(60).setExplain(true)
.get();

Does not compile on the "perpareSearch" as you see bolded above and there does not seem to be another maven dependency the IDE can find (or me either...).

I am creating the client as instructed to in 7.2, like this:

    RestHighLevelClient client = new RestHighLevelClient(
            RestClient.builder(
                    new HttpHost("localhost", 9200, "http"),
                    new HttpHost("localhost", 9201, "http")));

If I use one of the older methods online, then the Client object itself has the compile problem.

I have these imports:

import org.apache.http.HttpHost;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.action.search.SearchType;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.index.query.MatchQueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;

Thus, I've yet to find a totally working simple example.

Thanks for any suggestions what's off here.

2

For the rest client read this documentation.
The example you read is for the deprecated TransportClient.

3

Yep, that's exactly the same area I got the code.

<dependency>
    <groupId>org.elasticsearch.client</groupId>
    <artifactId>elasticsearch-rest-high-level-client</artifactId>
    <version>7.2.0</version>
</dependency>

Is what I'm using and what's posted there.

Do you see/find a complete (small even) Java example? I see lots code snippets, but nothing with a complete example with output.

Thanks very much.

4

The link you pasted is coming from TransportClient documentation AFAIK.

Anyway here are some samples:

5

Thanks very much. :slight_smile: This is great info.

6

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