Mac上Elasticsearch 安装及PHP使用

今天药忘吃喽~ 2022-12-11 12:13 188阅读 0赞

# **ElasticSearch需要基于Java下运行，故首先保证已安装java** #

--------------------

此处 mac 使用brew

brew cask install java

**安装ElasticSearch**

brew 安装

brew install ElasticSearch

终端输入`elasticsearch` 运行， 浏览器访问127.0.0.1:9200，出现下图，OK安装完成

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L21laW1laWVlZQ_size_16_color_FFFFFF_t_70][]

**composer 安装引用 elasticsearch**

composer.json  require中 加入

"elasticsearch/elasticsearch": "~6.0"

**PHP 实现elasticsearch基本操作类**

<?php
    use Elasticsearch\ClientBuilder;
    class ES {
        private $client;
        public function __construct(){
            $ci = get_instance();
            $params = array(
                '127.0.0.1:9200'
            );
            $this->client = ClientBuilder::create()->setHosts($params)->build();
        }
    
        //创建索引
        function createIndex($index_name = 'aki'){
            $params = [
                'index' => $index_name,
                'body' => [
                    'settings' => [
                        'number_of_shards' => 5,
                        'number_of_replicas' => 0
                    ]
                ]
            ];
            return $this->client->indices()->create($params);
        }
    
        // 删除索引
        public function delIndex($index_name = 'aki') {
            $params = ['index' => $index_name];
            return $this->client->indices()->delete($params);
        }
    
        // 添加文档
        public function addDoc($id,$doc,$index_name = 'aki',$type_name = 'form') {
            $params = [
                'index' => $index_name,
                'type' => $type_name,
                'id' => $id,
                'body' => $doc
            ];
            return $this->client->index($params);
        }
    
        // 判断文档存在
        public function existsDoc($id = 1,$index_name = 'aki',$type_name = 'form') {
            $params = [
                'index' => $index_name,
                'type' => $type_name,
                'id' => $id
            ];
    
            return $this->client->exists($params);
        }
    
        // 获取文档
        public function getDoc($id = 1,$index_name = 'aki',$type_name = 'form') {
            $params = [
                'index' => $index_name,
                'type' => $type_name,
                'id' => $id
            ];
    
            return $this->client->get($params);
    
        }
    
        // 更新文档
        public function updateDoc($id,$doc,$index_name = 'aki',$type_name = 'form') {
            // 可以灵活添加新字段,最好不要乱添加
            $params = [
                'index' => $index_name,
                'type' => $type_name,
                'id' => $id,
                'body' => [
                    'doc' =>$doc
                ]
            ];
    
            return $this->client->update($params);
        }
    
        // 删除文档
        public function delDoc($id,$index_name = 'aki',$type_name = 'form') {
            $params = [
                'index' => $index_name,
                'type' => $type_name,
                'id' => $id
            ];
    
            return $this->client->delete($params);
        }// 查询文档 (分页，排序，权重，过滤)
        public function searchDoc($keywords = "竞赛",$index_name = "aki",$type_name = "form",$sort = [],$from = 0,$size = 10) {
            $params = [
                'index' => $index_name,
                'type' => $type_name,
                'body' => [
                    'query' => [
                        'bool' => [
                            'should' => [
                                [ 'match' => [ 'title' => [
                                    'query' => $keywords,
                                    'boost' => 3, // 权重大
                                ]]],
                                [ 'match' => [ 'content' => [
                                    'query' => $keywords,
                                    'boost' => 2,
                                ]]],
                            ],
                        ],
                    ],
                    'sort' => ['price'=>['order'=>'desc']]
                    , 'from' => $from, 'size' => $size
                ]
            ];
    
            $results = $this->client->search($params);
    //        $maxScore  = $results['hits']['max_score'];
    //        $score = $results['hits']['hits'][0]['_score'];
    //        $doc   = $results['hits']['hits'][0]['_source'];
            return $results['hits']['hits'];
        }
    }

测试使用：

ll('es');//加载ES类
    
            $r = $this->es->delIndex();
            $r = $this->es->createIndex();
            print_r($r);
    
            $docs = [];
            $docs[] = ['id'=>1,'title'=>'李白','content'=>'酒仙刺客','price'=>100];
            $docs[] = ['id'=>2,'title'=>'孙悟空','content'=>'腾云驾雾的辜负了紫霞的刺客。','price'=>300];
            $docs[] = ['id'=>3,'title'=>'胡歌','content'=>'尽职励志，不错哦。','price'=>1000000];
            $docs[] = ['id'=>4,'title'=>'王者荣耀','content'=>'游戏就玩王者荣耀。','price'=>998];
            $docs[] = ['id'=>5,'title'=>'鲁班','content'=>'小短腿，谁都想灭。','price'=>98];
            $docs[] = ['id'=>6,'title'=>'妲己','content'=>'祸国殃民。','price'=>998];
            $docs[] = ['id'=>7,'title'=>'吕布','content'=>'方天画戟，后手放大','price'=>2998];
            $docs[] = ['id'=>8,'title'=>'水晶','content'=>'保护我方水晶，进攻地方水晶。','price'=>19999];
    
            foreach ($docs as $k => $v) {
                $this->es->addDoc($v['id'],$v);
            }　　　　　
    　　　　 $r = $this->es->searchDoc("李白 歌 水");　　　　
    　　　　 echo "<pre>";　　　　 print_r($r);

输出结果：

![fd28215069a38572bb735c3a130828a6.png][]

### linux `java jdk:` ###

yum install java-1.8.0-openjdk-devel.x86_64

安装 es  [https://www.jianshu.com/p/1bf398735dd4][https_www.jianshu.com_p_1bf398735dd4]

注意修改  /etc/security/limits.conf，追加以下内容；

* soft nofile 65536
    * hard nofile 65536 后退出终端重新登录

守护进程启动  加  -d

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L21laW1laWVlZQ_size_16_color_FFFFFF_t_70]: /images/20221123/39e3898951744a23a70ee79de5798a57.png
[fd28215069a38572bb735c3a130828a6.png]: /images/20221123/3ab2da4766364410a1c1f6a8e7c9b4d8.png
[https_www.jianshu.com_p_1bf398735dd4]: https://www.jianshu.com/p/1bf398735dd4