client【ElasticSearch】

1、client 

    @Bean
    public RestHighLevelClient client() {
        //client对象就是操作ES的对象
        RestHighLevelClient client =
                new RestHighLevelClient(RestClient.builder
                        (HttpHost.create("http://192.168.221.131:9200")));
        return client;
    }

2、注入

    @Resource
    private RestHighLevelClient client;