PHP+laravel之ES搜索

1. 检查电脑有没有Java SE环境（CMD中输入java -version），如果没有的话，没有的话请移步Java Archive | Oracle 下载JAVA SE，下载完成之后配置环境变量。不会配环境的移步

https://note.youdao.com/ynoteshare/index.html?id=5d588e37d757a264e269cba4e694a697&type=note&_time=1637629414584

2.下载ES与Kibana  移步 下载 Elastic 产品 | Elastic

3.下载ik分词器  移步 https://github.com/medcl/elasticsearch-analysis-ik/releases

4.ES  KIBANA  IK 分词器下载的版本要一致   如 ES使用7.1.0  kibana也要7.1.0  ik分词也要7.1.0

5.下载完IK分词器后，解压到这个目录下并将文件夹名改为ik

6.启动ES 与 KIBANA 

启动ES   

 启动KIBANA  

启动完之后，到浏览器检查是否启动成功 ES:（http://localhost:9200）KIBANA(http://localhost:5601)，例 ES启动成功

例  KIBANA启动成功：

7. 框架内执行composer require elasticsearch/elasticsearch 安装扩展。

各种准备工作结束，接下来上代码

1. 创建索引

  public function createIndex(){
        // 创建索引
        $client = ClientBuilder::create()->setHosts(['127.0.0.1:9200'])->build();
        $params = [
            'index' => 'news',
            'body' => [
                'settings' => [
                    'number_of_shards' => 3,
                    'number_of_replicas' => 2
                ],
                'mappings' => [
                    '_source' => [
                        'enabled' => true
                    ],
                    'properties' => [
                        //  ‘title’ 字段
                        'title' => [
                            'type' => 'text',
                            "analyzer" => "ik_max_word",
                            "search_analyzer" => "ik_max_word"
                        ],
                        'author' => [
                            'type' => 'text',
                            "analyzer" => "ik_max_word",
                            "search_analyzer" => "ik_max_word"
                        ]
                    ]
                ]
            ]
        ];
        // Create the index with mappings and settings now
        $response = $client->indices()->create($params);
        return $response;
    }

2. 第二步，将数据同步到ES  （这里看你的逻辑是什么）

 //封装一个同步的方法，到时候直接调用该方法
public function  pushEsNews($data){
        $client = ClientBuilder::create()->setHosts(['127.0.0.1:9200'])->build();
            $params = [
                'index' => 'news',
                'type' => '_doc',
                'body' => $data
            ];
            $response = $client->index($params);
        return $response;
    }

 //我这边用的采集，你可以换成正常的添加数据。
public function queryList(){
        //数据采集
        $ql =  QueryList::get("http://www.rz-tea.com/");
        $data['author'] =  $ql->find('.topic a')->texts();
        $data['title'] =  $ql->find('.article-title a')->texts();
        $data['src'] =  $ql->find('.article-image img')->attrs('src');
        $data['issue_date'] =  $ql->find('.article-meta .publish')->texts();
        $data['intro'] =  $ql->find('.article-digest')->texts();
        $data['info_src'] =  $ql->find('.article-image a')->attrs('href');
        foreach ($data['author'] as $key=>$val){
            unset($newData);
            $newData['author'] = $val;
            $newData['title'] = $data['title'][$key];
            $newData['src'] = $data['src'][$key];
            $newData['issue_date'] = $data['issue_date'][$key];
            $newData['info_src'] = $data['info_src'][$key];
            $newData['intro'] = $data['intro'][$key];
            $id  =  News::insertGetId($newData);
            //将数据同步到ES
            $newData['id'] = $id;
            $this->pushEsNews($newData);
        }
    }

3.搜索后高亮显示

  public function show(request $request){
        //搜索的值
        $seach = $request['seach'];
        $res = News::get()->toArray();
        //判断用户是否搜索，如果没有则跳过
        if($seach!=""){
            $client = ClientBuilder::create()->setHosts(['127.0.0.1:9200'])->build();
            $params = [
                'index' => 'news',
                'type' => '_doc',
                'body' => [
                    'query' => [
                        'bool' => [
                            'should' => [
                                [
                                    'match' => [
                                        'title' => "$seach",
                                    ]
                                ]
                            ]
                        ]
                    ],
                    'highlight' => [
                        'pre_tags' => [""],
                        'post_tags' => [""],
                        'fields' => [
                            "title" => new stdClass()
                        ]
                    ]
                ]
            ];
            $response = $client->search($params);
            $data = $response['hits']['hits'];
            $res = [];
            foreach ($data as $v) {
                if (!empty($v['highlight']['title'][0])) {
                    $v['_source']['title'] = $v['highlight']['title'][0];
                }
                array_push($res, $v['_source']);
            }
        }
        return view('news_show',compact('res','seach'));
    }

4.前台展示HTML

    

        
            
             搜新闻
        
    
      批量删除  添加管理员 共有数据：54 条 
    
        @foreach($res as $key=>$val)
            
        @endforeach
        

        

        

            
员工列表
        
        

            

            
ID
            
发布作者
            
新闻标题
            
新闻简介
            
新闻封面
            
发布时间
            
是否启用
            
操作
        
        
        

                

                
{{$val['id']}}
                
{{$val['author']}}
                
{!!$val['title']!!}
                
{{$val['intro']}}
                
{$val['src']}}" alt="" width="100%" height="100%">
                
{{$val['issue_date']}}
                
已启用
                
  
            
    

最终效果：

结束！