使用elasticsearch实现全文检索-优快云博客

本文链接：https://blog.youkuaiyun.com/weixin_53395484/article/details/116770860

该博客介绍了如何在PHP环境中配置和使用Elasticsearch进行全文检索。首先，通过Composer安装了Elasticsearch和Collision扩展。接着，创建了一个名为'my_index'的索引，并设置了分片和副本数量。然后，添加了一条数据到索引中，包含字段'title'。最后，展示了如何搜索索引，特别是针对'明'这个关键字进行高亮显示的查询操作。

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使用elasticsearch实现全文检索

运行环境，解压es文件，开启终端到bin目录下，运行es环境

1.框架安装全文索引扩展

composer require elasticsearch/elasticsearch

2.框架安装高亮显示扩展

composer require nunomaduro/collision

创建索引

public function index()
    {
        $client = ClientBuilder::create()->setHosts(['127.0.0.1:9200'])->build();
        $params = [
            'index' => 'my_index',
            'body' => [
                'settings' => [
                    'number_of_shards' => 5,
                    'number_of_replicas' => 1
                ],
                'mappings' => [
                    'properties' => [
                        'title' => [
                            'type' => 'text',
                            //   'analyzer' => 'ik_max_word',
                            //   'search_analyzer' => 'ik_max_word'
                        ]
                    ]
                ]
            ]
        ];
        $response = $client->indices()->create($params);
    }

添加数据

public function add()
    {
        $client = ClientBuilder::create()->setHosts(['127.0.0.1:9200'])->build();
        $params = [
            'index' => 'my_index',
            // 'id'    => 'my_id',
            'body'  => ['title' => '明天考试']
        ];

        $response = $client->index($params);
        print_r($response);
    }

查询数据

public function search()
    {
        $client = ClientBuilder::create()->setHosts(['127.0.0.1:9200'])->build();
        $params = [
            'index' => 'my_index',
            'body'  => [
                'query' => [
                    'multi_match' => [
                        'query' => '明',
                        'fields' => ['title']
                    ]
                ],
                'highlight' => [
                    'fields' => [
                        '*' => new Highlighter()
                    ]
                ]
            ]
        ];

        $response = $client->search($params);
        print_r($response);
    }