search-recommend/RestHighLevelClientDemo.md

	/**
	*该实例代码包括了自定义评分function_score(用script评分)，以及精确匹配（包含script筛选），已经用script排序
	*/
	public List<GoodsDto> searchByKey(String key) {
		/**
		 * 自定义评分计算
		 */
		BoolQueryBuilder boolQueryBuilder = new BoolQueryBuilder();
		// 混合查询
		boolQueryBuilder.must(QueryBuilders.multiMatchQuery("飞利浦", "title", "short_title", "goods_description")
				.minimumShouldMatch("1").type(Type.BEST_FIELDS).tieBreaker(0.3f));
		//根据当前价格（有活动价的取活动价，没有活动价取当前价）筛选
		Map<String, Object> params = new HashMap<String, Object>();
		params.put("lprice", 100.0);
		params.put("hprice", 200.0);
		Script script = new Script(ScriptType.INLINE, "painless",
				"if(doc['goods_price_activity'].size()>0){doc['goods_price_activity'].value>params['lprice'] && doc['goods_price_activity'].value<params['hprice']} else {doc['goods_price_now'].value>params['lprice'] && doc['goods_price_now'].value<params['hprice']}",
				params);
		boolQueryBuilder.must(
				QueryBuilders.scriptQuery(script)
				);
		// 精确匹配查询
		Map<String, Object> parameters = new HashMap<String, Object>();
		parameters.put("ntime", System.currentTimeMillis());
		Script inline = new Script(ScriptType.INLINE, "painless",
				"doc['begin_time'].size()>0 && doc['end_time'].size()>0 && doc['begin_time'].value.toInstant().toEpochMilli() < params['ntime'] && doc['end_time'].value.toInstant().toEpochMilli() > params['ntime'] ? doc['goods_price_activity'].value:doc['goods_price_now'].value",
				parameters);
		ScriptScoreFunctionBuilder scriptFunction = ScoreFunctionBuilders.scriptFunction(inline);
//		FunctionScoreQueryBuilder.FilterFunctionBuilder[] filterFunctionBuilders = new FunctionScoreQueryBuilder.FilterFunctionBuilder[] {
//				filterFunctionBuilder2 };
		FunctionScoreQueryBuilder query = QueryBuilders.functionScoreQuery(boolQueryBuilder, scriptFunction);
		
		SearchSourceBuilder builder = new SearchSourceBuilder();
		builder.size(10).query(boolQueryBuilder);
		builder.query(query);
		builder.sort("_score", SortOrder.DESC);
		
		Script script2 = new Script(
				"doc['goods_price_activity'].size()>0? doc['goods_price_activity'].value:doc['goods_price_now'].value");
		ScriptSortBuilder scriptSortBuilder = new ScriptSortBuilder(script2,ScriptSortType.NUMBER);
		builder.sort(scriptSortBuilder.order(SortOrder.DESC));
		return esUtil.search("goods_list", builder, GoodsDto.class);
	}
	
	kibana的rest请求写法：
	GET goods_list/_search
	{
      "query": {
        "bool": {
          "must": [
           {"multi_match": {
            "query": "",
            "type": "best_fields",
            "fields": ["title","short_title","goods_description"],
            "tie_breaker": 0.3
            
              } 
            
            },
            {
              "script": {
                "script": {
                  "lang":"painless",
                  "source": "if(doc['goods_price_activity'].size()>0){doc['goods_price_activity'].value>params['lprice'] && doc['goods_price_activity'].value<params['hprice']} else {doc['goods_price_now'].value>params['lprice'] && doc['goods_price_now'].value<params['hprice']}",
                  "params": {
                    "lprice":100.0,
                    "hprice":200.0
                  }
                }
              }
            }
          ],
          "filter": [
            {"term": {
              "terminal_code": "6"
            }}
          ]
        }
      },
      "sort": [
    	{
    "_script" : {
      "script" : {
        "source" : "doc['goods_price_activity'].size()>0? doc['goods_price_activity'].value:doc['goods_price_now'].value"
      },
      "type" : "number",
      "order" : "desc"
    }
    } 
    ],
    "from": 0,
    "size": 100
	}
	
	
	//最接近生产使用的rest调用示例：
	GET goods_list/_search
	{
      "query": {
        "bool": {
          "must": [
           {"multi_match": {
            "query": "摩飞冷暖风机",
            "type": "best_fields",
            "fields": ["title","short_title","goods_description"],
            "tie_breaker": 0.3
            
              } 
            
            },
            {
              "script": {
                "script": {
                  "lang":"painless",
                  "source": "if(doc['goods_price_activity'].size()>0){doc['goods_price_activity'].value>params['lprice'] && doc['goods_price_activity'].value<params['hprice']} else {doc['goods_price_now'].value>params['lprice'] && doc['goods_price_now'].value<params['hprice']}",
                  "params": {
                    "lprice":100.0,
                    "hprice":200.0
                  }
                }
              }
            }
          ],
          "filter": [
            {"term": {
              "terminal_code": "6"
              }
            },
            {
              "term": {
                "terminal_code": "7"
              }
            },
            {
              "term": {
                "terminal_code": "8"
              }
            }
          ]
        }
      },
      "sort": [
    {
      "sale_time": {
        "order": "desc"
      }
    }
    ],
    "from": 0,
    "size": 100
	}