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  • (23)ElasticSearch java项目中查询所有字段筛选文档——queryStringQuery和simpleQueryStringQuery

      1、查询所有字段中含有changge且不含有hejiu的文档

    @Test
        public void testQueryStringQuery() 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,查询所有字段中含有changge且不含有hejiu的文档
            QueryBuilder qb = QueryBuilders.queryStringQuery("+changge -hejiu");
            //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();
       }

      2、查询所有字段中含有changge或者不含有hejiu的文档

    @Test
        public void testSimpleQueryStringQuery() 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,查询所有字段中含有changge或者不含有hejiu的文档
            QueryBuilder qb = QueryBuilders.simpleQueryStringQuery("+changge -hejiu");
            //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();
       }
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  • 原文地址:https://www.cnblogs.com/javasl/p/12081805.html
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