轻量级的搜索引擎 Meilisearch 快速入门

轻量级的搜索引擎 Meilisearch

1、安装

cd /opt

mkdir meili_data

docker run -itd  -p 7700:7700 -e MEILI_ENV='development' -e MEILI_MASTER_KEY='xxx'  -v $(pwd)/meili_data:/meili_data getmeili/meilisearch:v1.0

使用 MASTER_KEY 设定 Meilisearch 的连接密码。

2、引入 Java SDK 依赖

官方提供了主流语言的 SDK，或者使用 HTTP 的方式访问 Meilisearch。我用的是 Java SDK。

github.com/meilisearch…

<dependency>
    <groupId>com.meilisearch.sdk</groupId>
    <artifactId>meilisearch-java</artifactId>
    <version>0.11.0</version>
</dependency>

<dependency>
    <groupId>com.squareup.okhttp3</groupId>
    <artifactId>okhttp</artifactId>
    <version>4.10.0</version>
</dependency>

3、建立连接插入数据

import cn.hutool.json.JSONArray;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.meilisearch.sdk.Client;
import com.meilisearch.sdk.Config;
import com.meilisearch.sdk.Index;
import com.meilisearch.sdk.exceptions.MeilisearchException;
import com.meilisearch.sdk.model.TaskInfo;

import java.util.ArrayList;
import java.util.List;


public class demo01 {

    public static void main(String[] args) throws  MeilisearchException {
        JSONObject j1 = new JSONObject().put("id", "1").put("title", "Carol").put("genre", new JSONArray("["Romance","Drama"]"));
        JSONObject j2 =   new JSONObject().put("id", "2").put("title", "Wonder Woman").put("genres",new JSONArray("["Action","Adventure"]"));
        JSONObject j3 =  new JSONObject().put("id", "3").put("title", "Life of Pi").put("genres",new JSONArray("["Adventure","Drama"]"));
        JSONObject j4 =  new JSONObject().put("id", "4").put("title", "Mad Max: Fury Road").put("genres",new JSONArray("["Adventure","Science Fiction"]"));
        JSONObject j5 = new JSONObject().put("id", "5").put("title", "Moana").put("genres",new JSONArray("["Fantasy","Action"]"));
        JSONObject j6 =   new JSONObject().put("id", "6").put("title", "Philadelphia").put("genres",new JSONArray("["Drama"]"));


        List<JSONObject> jsonObjects = new ArrayList<>();
        jsonObjects.add(j1);
        jsonObjects.add(j2);
        jsonObjects.add(j3);
        jsonObjects.add(j4);
        jsonObjects.add(j5);
        jsonObjects.add(j6);
        Client client = new Client(new Config("http://192.168.161.239:7700", "sqlark"));

// An index is where the documents are stored.
        Index index = client.index("movies");

// If the index 'movies' does not exist, MeiliSearch creates it when you first add the documents.
        for (JSONObject jsonObject : jsonObjects) {
            String documents = JSONUtil.toJsonStr(jsonObject);
            TaskInfo taskInfo = index.addDocuments(documents,"id");
            System.out.println(taskInfo.getStatus());
        }
    }

}

插入成功如下图所示：

4、搜索

由于其自身搜索会导致 高亮等传入的是 String[] 数组，导致查询时候，转成json 直接取的其hash 值。所以进行了改造。

@Data
@Component("SearchUtil")
@Slf4j
public class SearchUtil {

    @Value("${custom.meilisearch.host}")
    private String hostUrl;

    @Value("${custom.meilisearch.ApiKey}")
    private String apiKey;

    public SearchResultPaginated searchData(String indexName, SearchRequest searchRequest) {
        Client client = new Client(new Config(hostUrl, apiKey));
        Index index = null;
        try {
            index = client.index(indexName);
        } catch (Exception e) {
            log.error(e.getMessage());
        }
        JSONObject searchObject = JSONUtil.parseObj(searchRequest);
        GsonJsonHandler jsonGson = new GsonJsonHandler();
        String requestQuery = "/indexes/" + index.getUid() + "/search";
        String url = index.getConfig().getHostUrl() + requestQuery;
        HttpRequest httpRequest = HttpUtil.createRequest(Method.POST, url);
        httpRequest.header("Authorization",  "Bearer "+ index.getConfig().getApiKey());
        httpRequest.body(JSONUtil.toJsonStr(searchObject));
        HttpResponse httpResponse = httpRequest.execute();
        if (isSuccess(httpResponse)) {
            JSONObject jsonObject = JSONUtil.parseObj(httpResponse.body());
            SearchResultPaginated searchResult = null;
            try {
                searchResult = jsonGson.decode(JSONUtil.toJsonStr(jsonObject), SearchResultPaginated.class);
            } catch (Exception e) {
                log.error(e.getMessage());
            }
            return searchResult;

        } else {
            throw new RuntimeException("从Meilisearch获取信息失败");
        }
      }
    }