1. 创建索引库：

 //创建索引库
    @Test
    void createHotelIndex() throws IOException {
        //1.创建Request对象
        CreateIndexRequest request = new CreateIndexRequest("hotel");
        //2.准备请求的参数：DSL语句
        request.source(MAPPING_TEMPLATE, XContentType.JSON);
        //3.发送请求
        client.indices().create(request,RequestOptions.DEFAULT);
    }

public static final String MAPPING_TEMPLATE = "{\n" +
            "  "mappings": {\n" +
            "    "properties": {\n" +
            "      "id":{\n" +
            "        "type":"keyword"\n" +
            "      },\n" +
            "      "name":{\n" +
            "        "type":"text",\n" +
            "        "analyzer": "ik_max_word",\n" +
            "        "copy_to": "all"\n" +
            "      },\n" +
            "      "address":{\n" +
            "        "type":"keyword",\n" +
            "        "index":"false"\n" +
            "      },\n" +
            "      "price":{\n" +
            "        "type":"integer"\n" +
            "      },\n" +
            "      "score":{\n" +
            "        "type":"integer"\n" +
            "      },\n" +
            "      "brand":{\n" +
            "        "type":"keyword",\n" +
            "        "copy_to": "all"\n" +
            "      },\n" +
            "      "city":{\n" +
            "        "type":"keyword"\n" +
            "      },\n" +
            "      "starName":{\n" +
            "        "type":"keyword"\n" +
            "      },\n" +
            "      "business":{\n" +
            "        "type":"keyword",\n" +
            "        "copy_to": "all"\n" +
            "      },\n" +
            "      "location":{\n" +
            "        "type":"geo_point"\n" +
            "      },\n" +
            "      "pic":{\n" +
            "        "type":"keyword",\n" +
            "        "index":false\n" +
            "      },\n" +
            "      "all":{\n" +
            "        "type":"text",\n" +
            "        "analyzer": "ik_max_word"\n" +
            "      }\n" +
            "    }\n" +
            "  }\n" +
            "}";

编辑

2. 删除索引库：

//删除索引库
    @Test
    void textDeleteHotelIndex() throws IOException {
        //1.创建Request对象
        DeleteIndexRequest request = new DeleteIndexRequest("hotel");
​
        //2.发送请求
        client.indices().delete(request,RequestOptions.DEFAULT);
    }

3. 旁段是否存在索引库：

 //判断是否存在索引库
    @Test
    void textExistsHotelIndex() throws IOException {
        //1.创建Request对象
        GetIndexRequest request = new GetIndexRequest("hotel");
​
        //2.发送请求
        boolean exists = client.indices().exists(request,RequestOptions.DEFAULT);
        System.out.println(exists ? "索引库已经存在！" : "索引库不存在！");
    }

4. 修改文档

//修改文档
    @Test
    void testUpdateDocument() throws IOException {
        //1.准备Request
        UpdateRequest request = new UpdateRequest("hotel","61083");
​
        //2.准备请求参数
        request.doc(
                "price","952",
                "starName","四钻"
        );
​
        //3.发送请求
        client.update(request,RequestOptions.DEFAULT);
    }

5. 查询文档

 //根据id查询
    @Test
    void testAddDocumentById() throws IOException {
​
        //1.准备好request
        GetRequest request = new GetRequest("hotel","61083");
        //2.发送请求 ，得到响应
        GetResponse response = client.get(request,RequestOptions.DEFAULT);
        //3.解析响应结果
        String json = response.getSourceAsString();
​
        HotelDoc hotelDoc= JSON.parseObject(json,HotelDoc.class);
        System.out.println(hotelDoc);
    }

6. 批量添加文档

//批量添加
    @Test
    void testBulkRequest() throws IOException {
        //批量查询酒店的数量
        List<Hotel> hotels = new hotelService.list();
​
        for(Hotel hotel : hotels){
            HotelDoc hotelDoc = new HotelDoc(hotel);
        }
​
        //1.创建Request
        BulkRequest request = new BulkRequest();
        //2.准备参数，添加多个新增的Request
        for(Hotel hotel : hotels){
            //转换为文档类型的HotelDoc
            HotelDoc hotelDoc = new HotelDoc(hotel);
            //创建新增文档的Request对象
            request.add(new IndexRequest("hotel")
                    .id(hotelDoc.getId().toString())
                    .source(JSON.toJSONString(hotelDoc),XContentType.JSON));
        }
​
        //3.发送请求
        client.bulk(request,RequestOptions.DEFAULT);
    }