es

原创
2019/06/25 00:44
阅读数 177
package com.slm;

import com.alibaba.fastjson.JSON;
import com.carrotsearch.hppc.cursors.ObjectObjectCursor;
import com.slm.model.ShopModel;
import org.apache.http.HttpHost;
import org.elasticsearch.action.admin.indices.create.CreateIndexRequest;
import org.elasticsearch.action.admin.indices.create.CreateIndexResponse;
import org.elasticsearch.action.admin.indices.get.GetIndexRequest;
import org.elasticsearch.action.admin.indices.get.GetIndexResponse;
import org.elasticsearch.action.get.GetRequest;
import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.cluster.metadata.MappingMetaData;
import org.elasticsearch.common.collect.ImmutableOpenMap;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.common.xcontent.json.JsonXContent;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.SearchHits;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.io.IOException;
import java.util.*;

public class ElasticsearchDemo {

    public static final String host = "192.168.199.246";

    public static final int port = 9200;

    public static RestHighLevelClient client = null;

    public static String INDEX_NAME = "shop_test";

    public static String INDEX_TYPE = "shop_type";


    @Before
    public void init() {
        client = new
                RestHighLevelClient(RestClient.builder(new HttpHost(host, port)));
    }

    @After
    public void close() {
        if (client != null) {
            try {
                client.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {



        RestHighLevelClient client = new
                RestHighLevelClient(RestClient.builder(new HttpHost(host, port)));

        CreateIndexRequest request = new CreateIndexRequest("shop");
        Map<String, Object> publicMap = new HashMap<String, Object>();
        publicMap.put("name", "string");
        publicMap.put("address", "text");
//        publicMap.put("")
        request.mapping("public_shop", publicMap);
        request.settings(Settings.builder()
                .put("index.number_of_shards", 3)
                .put("index.number_of_replicas", 2));

        try {
            CreateIndexResponse createIndexResponse = client.indices().create(request, RequestOptions.DEFAULT);
            client.close();

            boolean acknowledged = createIndexResponse.isAcknowledged();
            boolean shardsAcknowledged = createIndexResponse.isShardsAcknowledged();
            System.out.println(acknowledged + ";" + shardsAcknowledged);

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Test
    public void testExistIndex() {

        GetIndexRequest request = new GetIndexRequest();
        request.indices("shop");
        try {
            boolean exists = client.indices().exists(request, RequestOptions.DEFAULT);
            System.out.println("index : " + exists);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Test
    public void testGetIndex() {
        GetIndexRequest request = new GetIndexRequest();
        request.indices("shop");
        try {
            GetIndexResponse getIndexResponse =
                    client.indices().get(request, RequestOptions.DEFAULT);
            ImmutableOpenMap<String, ImmutableOpenMap<String, MappingMetaData>> mappings =
                    getIndexResponse.getMappings();
            System.out.println("mapping:");

            Iterator<ObjectObjectCursor<String, ImmutableOpenMap<String, MappingMetaData>>> iterator = mappings.iterator();
            while (iterator.hasNext()) {
                ObjectObjectCursor<String, ImmutableOpenMap<String, MappingMetaData>> next = iterator.next();
                System.out.println(next.key);
                System.out.println(next.index);
                Iterator<ObjectObjectCursor<String, MappingMetaData>> iterator1 = next.value.iterator();
                while (iterator1.hasNext()) {
                    ObjectObjectCursor<String, MappingMetaData> next1 = iterator1.next();
                    MappingMetaData value = next1.value;
                    Map<String, Object> sourceAsMap = value.getSourceAsMap();
                    Collection<Object> values = sourceAsMap.values();
                    for (Object d : values) {
                        System.out.println(":" + d.toString());
                    }
                }
                //                String s = iterator.next().toString();
//                System.out.println(s);
                System.out.println();
            }

            String[] indices = getIndexResponse.getIndices();
            System.out.println(Arrays.toString(indices));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Test
    public void insertDoc() throws IOException {
        Map<String, Object> jsonMap = new HashMap<String, Object>();
        jsonMap.put("title", "商家1");
        jsonMap.put("address", "广东省广州市天河区天河东路111");
        jsonMap.put("createTime", new Date());
        jsonMap.put("name", "alias name");

        for (int i = 0; i < 10; i++) {
            ShopModel shopModel = new ShopModel();
            shopModel.setAddress("海外天地" +i);
            shopModel.setAddTime(new Date());
            shopModel.setContent("可就是咖啡机啊" + i);
            shopModel.setId(i+1);
            shopModel.setShopId(i + 2);
            ArrayList<Double> objects = new ArrayList<Double>();
            double tmp = i * 0.01;
            objects.add(47.432D + tmp);
            objects.add(127.223D + tmp);
            shopModel.setLocation(objects);
            shopModel.setTitle("酷酷酷酷酷" + i);
            IndexRequest request = new IndexRequest(INDEX_NAME, INDEX_TYPE, String.valueOf(shopModel.getId()))
                    .source(JSON.toJSON(shopModel), XContentType.JSON);
            IndexResponse index = client.index(request, RequestOptions.DEFAULT);
            System.out.println(index.getId() + ": status:" + index.status().getStatus());

        }

    }

    @Test
    public void testGetDoc() throws Exception {
        GetRequest request = new GetRequest(INDEX_NAME, INDEX_TYPE , "1");
        GetResponse documentFields = client.get(request, RequestOptions.DEFAULT);

        System.out.println(documentFields.getSourceAsString());
    }

    @Test
    public void searchDoc() throws Exception {
        SearchRequest request = new SearchRequest();
        request.indices(INDEX_NAME);
        request.types(INDEX_TYPE);
        SearchSourceBuilder builder = new SearchSourceBuilder();
        builder.query(QueryBuilders.matchQuery("content", "咖啡"));
        request.source(builder);
        //排序
        SearchResponse search = client.search(request, RequestOptions.DEFAULT);
        SearchHits hits = search.getHits();
        SearchHit[] hits1 = hits.getHits();
        System.out.println(Arrays.toString(hits1));
    }

    @Test
    public void testExist() throws IOException {
        GetIndexRequest request = new GetIndexRequest();
        request.indices(INDEX_NAME);
        request.types(INDEX_TYPE);
        boolean exists = client.indices().exists(request, RequestOptions.DEFAULT);
        System.out.println(exists);
    }

    public void testGetIdnex() throws Exception {
        GetIndexRequest request = new GetIndexRequest();
        request.indices(INDEX_NAME);
        request.types(INDEX_TYPE);
        GetIndexResponse getIndexResponse = client.indices().get(request, RequestOptions.DEFAULT);
        ImmutableOpenMap<String, ImmutableOpenMap<String, MappingMetaData>> mappings =
                getIndexResponse.getMappings();
        Iterator<ObjectObjectCursor<String, ImmutableOpenMap<String, MappingMetaData>>> iterator =
                mappings.iterator();
    }

    @Test
    public void testCreateIndex() throws IOException {
        CreateIndexRequest request = new CreateIndexRequest(INDEX_NAME);
        request.settings(Settings.builder()
                .put("number_of_shards", 2)
                .put("number_of_replicas", 1));
        XContentBuilder builder = JsonXContent.contentBuilder()
                .startObject().
                        startObject("mappings")
                            .startObject(INDEX_TYPE)
                                .startObject("properties")
                                    .startObject("title")
                                        .field("type", "keyword")
                                    .endObject()
                                    .startObject("content")
                                        .field("type", "text")
                                    .endObject()
                                    .startObject("addTime")
                                        .field("type", "date")
                                    .endObject()
                                    .startObject("location")
                                        .field("type", "geo_point")
                                    .endObject()
                                    .startObject("shopId")
                                        .field("type", "integer")
                                    .endObject()
                                .endObject()
                            .endObject()
                        .endObject()
                .endObject();
        request.source(builder);

        CreateIndexResponse createIndexResponse = client.indices().create(request, RequestOptions.DEFAULT);
        System.out.println(createIndexResponse.isAcknowledged());
    }


}

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