（21）ElasticSearch java项目中matchmultimathtermterms以及范围前缀通配符模糊类型ids等查询示例

Posted 2020-11-23 明月之诗

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　　1、查询index1中content字段包含工厂的文档

@Test
    public void testMatch() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象
        QueryBuilder qb = QueryBuilders.matchQuery("content","工厂");
        //执行查询
        SearchResponse sr = client.prepareSearch("index1")
                                  .setQuery(qb)
                                  .setSize(3)//查询出3个
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

　　2、查询index1中title字段或者content字段包含设计的文档

@Test
    public void testMultiMatch() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象，查询title或者content包含设计的
        QueryBuilder qb = QueryBuilders.multiMatchQuery("设计","title","content");
        //执行查询
        SearchResponse sr = client.prepareSearch("index1")
                                  .setQuery(qb)
                                  .setSize(3)//查询出3个
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

　　3、查询index1中title字段包含设计的

@Test
    public void testTermQuery() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象，查询title包含设计的
        QueryBuilder qb = QueryBuilders.termQuery("title","设计");
        //执行查询
        SearchResponse sr = client.prepareSearch("index1")
                                  .setQuery(qb)
                                  .setSize(3)//查询出3个
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

　　4、在index1中查询title字段包含设计或者静态工厂的

@Test
    public void testTermsQuery() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象，查询title包含设计或者静态工厂的
        QueryBuilder qb = QueryBuilders.termsQuery("title","设计","静态工厂");
        //执行查询
        SearchResponse sr = client.prepareSearch("index1")
                                  .setQuery(qb)
                                  .setSize(3)//查询出3个
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

　　5、在index1中查询postdate的范围在2018-05-20到2018-05-21之间的

@Test
    public void testRangeQuery() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象，查询postdate的范围在2018-05-20到2018-05-21之间的
        QueryBuilder qb = QueryBuilders.rangeQuery("postdate").from("2018-05-20").to("2018-05-21").format("yyyy-MM-dd");
        //执行查询
        SearchResponse sr = client.prepareSearch("index1")
                                  .setQuery(qb)
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

　　6、在index1中查询url字段以csdn开头的文档

@Test
    public void testPrefixQuery() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象，查询url以csdn开头的文档
        QueryBuilder qb = QueryBuilders.prefixQuery("url","csdn");
        //执行查询
        SearchResponse sr = client.prepareSearch("index1")
                                  .setQuery(qb)
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

　　7、在index1中查询url字段以csdn开头的文档

@Test
    public void testWildcardQuery() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象，查询url以csdn开头的文档
        QueryBuilder qb = QueryBuilders.wildcardQuery("url","csdn*");
        //执行查询
        SearchResponse sr = client.prepareSearch("index1")
                                  .setQuery(qb)
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

　　8、在index1中模糊查询interests字段中包含changge的文档

@Test
    public void testFuzzyQuery() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象，查询interests字段中包含changge的文档，（"interests":"xi huan tingyinyue,changge,tiaowu"）
        QueryBuilder qb = QueryBuilders.fuzzyQuery("interests","chagge");//即使changge写成chagge也能模糊查询出来
        //执行查询
        SearchResponse sr = client.prepareSearch("lib3")
                                  .setQuery(qb)
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

　　9、在index1中查询类型是blog的文档

@Test
    public void testTypeQuery() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象，查询类型是blog的
        QueryBuilder qb = QueryBuilders.typeQuery("blog");
        //执行查询
        SearchResponse sr = client.prepareSearch("index1")//索引是index1的
                                  .setQuery(qb)
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

　　10、在索引lib3中查询name是zhangsan的文档（类似于GET lib3/user/_search?q=name:zhangsan）

@Test
    public void testCommonTermsQuery() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象,查询name是zhangsan的
        QueryBuilder qb = QueryBuilders.commonTermsQuery("name","zhangsan");
        //执行查询
        SearchResponse sr = client.prepareSearch("lib3")
                                  .setQuery(qb)
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

　　11、在索引lib3中查询name字段是zhangsan的文档（不计算分数查询）　

@Test
    public void testConstantScoreQuery() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象,查询name字段是zhangsan的文档,不计算分数查询
        QueryBuilder qb = QueryBuilders.constantScoreQuery(QueryBuilders.termQuery("name","zhangsan"));
        //执行查询
        SearchResponse sr = client.prepareSearch("lib3")
                                  .setQuery(qb)
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

　　12、在index1中查询id是4、8的文档

@Test
    public void testIdsQuery() throws IOException, InterruptedException, ExecutionException {
        //指定集群
        Settings settings = Settings.builder().put("cluster.name","my-application").build(); 
        //创建客户端
        TransportClient client = new PreBuiltTransportClient(settings)
                                .addTransportAddress(new TransportAddress(InetAddress.getByName("192.168.43.151"),9300));
        //创建查询对象，查询id是4、8的
        QueryBuilder qb = QueryBuilders.idsQuery().addIds("4","8");
        //执行查询
        SearchResponse sr = client.prepareSearch("index1")//索引是index1
                                  .setQuery(qb)
                                  .get();
        //获取结果
        SearchHits hits = sr.getHits();
        for(SearchHit hit:hits) {
            //输出json
            System.out.println(hit.getSourceAsString());
            //输出json的key与value
            Map<String, Object> map = hit.getSourceAsMap();
            for(String key:map.keySet()) {
                System.out.println(key+"="+map.get(key));
            }
        }
        client.close();
   }

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