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1 制造数据
新增索引POST /forum/article/_bulk{ "index": { "_id": 1 }}{ "articleID" : "XHDK-A-1293-#fJ3", "userID" : 1, "hidden": false, "postDate": "2017-01-01" }{ "index": { "_id": 2 }}{ "articleID" : "KDKE-B-9947-#kL5", "userID" : 1, "hidden": false, "postDate": "2017-01-02" }{ "index": { "_id": 3 }}{ "articleID" : "JODL-X-1937-#pV7", "userID" : 2, "hidden": false, "postDate": "2017-01-01" }{ "index": { "_id": 4 }}{ "articleID" : "QQPX-R-3956-#aD8", "userID" : 2, "hidden": true, "postDate": "2017-01-02" }追加新增字段POST /forum/article/_bulk{ "update": { "_id": "1"} }{ "doc" : { "tag" : ["java", "hadoop"]} }{ "update": { "_id": "2"} }{ "doc" : { "tag" : ["java"]} }{ "update": { "_id": "3"} }{ "doc" : { "tag" : ["hadoop"]} }{ "update": { "_id": "4"} }{ "doc" : { "tag" : ["java", "elasticsearch"]} }复制代码 2 多值搜索案例
- 搜索articleID为KDKE-B-9947-#kL5或QQPX-R-3956-#aD8的帖子，搜索tag中包含java的帖子
GET /forum/article/_search { "query": { "constant_score": { "filter": { "terms": { "articleID": [ "KDKE-B-9947-#kL5", "QQPX-R-3956-#aD8" ] } } } } } GET /forum/article/_search { "query" : { "constant_score" : { "filter" : { "terms" : { "tag" : ["java"] } } } } } "took": 2, "timed_out": false, "_shards": { "total": 5, "successful": 5, "failed": 0 }, "hits": { "total": 3, "max_score": 1, "hits": [ { "_index": "forum", "_type": "article", "_id": "2", "_score": 1, "_source": { "articleID": "KDKE-B-9947-#kL5", "userID": 1, "hidden": false, "postDate": "2017-01-02", "tag": [ "java" ] } }, { "_index": "forum", "_type": "article", "_id": "4", "_score": 1, "_source": { "articleID": "QQPX-R-3956-#aD8", "userID": 2, "hidden": true, "postDate": "2017-01-02", "tag": [ "java", "elasticsearch" ] } }, { "_index": "forum", "_type": "article", "_id": "1", "_score": 1, "_source": { "articleID": "XHDK-A-1293-#fJ3", "userID": 1, "hidden": false, "postDate": "2017-01-01", "tag": [ "java", "hadoop" ] } } ] }}优化搜索结果，仅仅搜索tag只包含java的帖子POST /forum/article/_bulk{ "update": { "_id": "1"} }{ "doc" : { "tag_cnt" : 2} }{ "update": { "_id": "2"} }{ "doc" : { "tag_cnt" : 1} }{ "update": { "_id": "3"} }{ "doc" : { "tag_cnt" : 1} }{ "update": { "_id": "4"} }{ "doc" : { "tag_cnt" : 2} }GET /forum/article/_search{ "query": { "constant_score": { "filter": { "bool": { "must": [ { "term": { "tag_cnt": 1 } }, { "terms": { "tag": ["java"] } } ] } } } }}复制代码 2 范围搜索案例
2.1 制造数据
POST /forum/article/_bulk{ "update": { "_id": "1"} }{ "doc" : { "view_cnt" : 30} }{ "update": { "_id": "2"} }{ "doc" : { "view_cnt" : 50} }{ "update": { "_id": "3"} }{ "doc" : { "view_cnt" : 100} }{ "update": { "_id": "4"} }{ "doc" : { "view_cnt" : 80} }复制代码 2.2 搜索浏览量在30~60之间的帖子
GET /forum/article/_search{ "query": { "constant_score": { "filter": { "range": { "view_cnt": { "gt": 30, "lt": 60 } } } } }}复制代码 2.3 搜索发帖日期在最近1个月的帖子
POST /forum/article/_bulk{ "index": { "_id": 5 }}{ "articleID" : "DHJK-B-1395-#Ky5", "userID" : 3, "hidden": false, "postDate": "2017-03-01", "tag": ["elasticsearch"], "tag_cnt": 1, "view_cnt": 10 }GET /forum/article/_search { "query": { "constant_score": { "filter": { "range": { "postDate": { "gt": "2017-03-10||-30d" } } } } }}GET /forum/article/_search { "query": { "constant_score": { "filter": { "range": { "postDate": { "gt": "now-30d" } } } } }}复制代码 3 总结
专注于大数据及容器云核心技术解密，可提供全栈的大数据+云原生平台咨询方案，请持续关注本套博客。QQ邮箱地址：1120746959@qq.com，如有任何学术交流，可随时联系。详情请关注《数据云技术社区》公众号。