laravel:访问es,索引和搜索(Laravel 11.15.0)

一，安装需要的库

1,包的地址:

https://packagist.org/packages/elasticsearch/elasticsearch

2,文档地址:

https://www.elastic.co/guide/en/elasticsearch/client/php-api/current/index.html

3,用composer从命令行安装

[lhdop@blog dignews]$ composer require elasticsearch/elasticsearch 

4,安装完成后查看所安装的版本:

[lhdop@blog dignews]$ composer show elasticsearch/elasticsearch
name     : elasticsearch/elasticsearch
descrip. : PHP Client for Elasticsearch
keywords : client, elastic, elasticsearch, search
versions : * v8.14.0
type     : library
license  : MIT License (MIT) (OSI approved) https://spdx.org/licenses/MIT.html#licenseText
homepage : 

二，添加controller和路由

1,添加controller

php artisan make:controller UserController

2,添加路由:routes/web.php

use App\Http\Controllers\UserController;

Route::controller(UserController::class)->group(function () {
    Route::get('/user/home', 'home');
    Route::get('/user/index', 'index');
    Route::get('/user/getone', 'getone');
    Route::get('/user/search', 'search');
});

三，索引功能/搜索功能

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use Elastic\Elasticsearch\ClientBuilder;

class UserController extends Controller
{

    //建立到es的连接
    private function _init_es()
    {
        $hosts = ['127.0.0.1:9200'];
        $client = ClientBuilder::create()->setHosts($hosts)->build();
        return $client;
    }
    
    //直接返回字符串
    public function home(){
         $rand_digit = rand(100,999);
         $msg = 'hello,随机数:'.$rand_digit;
        return 'Hello, World!'.$msg;
    }

     //索引
    public function index(){
     //初始化一个es
       $client = $this->_init_es();

          $id=1;
          $title = 'global world';
          $content = 'man,good,linux,python';

            $params = [
                'index' => 'article1',
                'id' => $id,
                'body' => [
                    'id' => $id,
                    'title' => $title,
                    'content' => $content,
                ],
            ];
            $rs = $client -> index($params);
          print_r($rs);
    }

    //查询
    public function getone() {
     //初始化一个es
       $client = $this->_init_es();

        $id=1;

        $params = [
            'index' => 'article1',
            //'type' => $type_name,
            'id' => $id
        ];
        $response = $client->get($params);
        //print_r($response);
        echo $response->getStatusCode(); // 200
        //echo (string) $response->getBody(); // Response body in JSON
        var_dump($response->asArray());  // response body content as array
    }

    //搜索
    public function search() {
        //初始化一个es
        $client = $this->_init_es();

       $params = [
           'index' => 'article1',
           'body'  => [
                 'query' => [
                      'match' => [
                           'content' => 'linux'
                       ]
                  ]
           ]
        ];
        $results = $client->search($params);
        //var_dump($results->asArray());  // response body content as array
        $ret = $results->asArray();
        echo json_encode($ret);
    }

}

四，测试效果

先索引后访问搜索地址的返回

五，查看laravel的版本:

[lhdop@blog dignews]$ php artisan --version
Laravel Framework 11.15.0