1.es介绍10个点
2.安装
-jdk :java开发环境
# 索引操作---》数据库操作---》新增,删除,修改,查询 # 1 新增索引: PUT lqz2 # lqz2就是索引名字 { "settings": { "index":{ "number_of_shards":5, "number_of_replicas":1 } } } # 2 查询索引 GET lqz2/_settings 返回结果 { "lqz2" : { "settings" : { "index" : { "creation_date" : "1588822389842", "number_of_shards" : "1", "number_of_replicas" : "1", "uuid" : "NBXIeVdHQ26vCuPn8_6uew", "version" : { "created" : "7050099" }, "provided_name" : "lqz2" } } } } # 3 更新索引 PUT lqz2/_settings { "number_of_replicas": 2 } #4 删除lqz2索引 DELETE lqz2
#1 新增文档 POST lqz2/_doc/1 { "title":"红楼梦", "price":12, "publish_addr":{ "province":"黑龙江", "city":"鹤岗" }, "publish_date":"2013-11-11", "read_num":199, "tag":["古典","名著"] } POST lqz2/_doc/2 { "title":"西游记", "price":22, "publish_addr":{ "province":"上海", "city":"上海" }, "publish_date":"2013-11-11", "read_num":66, "tag":["古典","小说"] } # 2 查询文档(更详细的查找,后面讲) GET lqz2/_doc/2 # 3 修改文档 -覆盖式(原来的字段就没有了) PUT lqz/_doc/1 { "title":"xxxx", "price":333, "publish_addr":{ "province":"黑龙江", "city":"福州" } } -增量式(只修改某个字段)一定要注意包在doc中 POST lqz2/_doc/1/_update { "doc":{ "title":"xx" } } # 4 删除文档 DELETE lqz/_doc/1 # 5 批量获取 GET _mget { "docs":[ { "_index":"lqz2", "_type":"_doc", "_id":2 }, { "_index":"lqz2", "_type":"_doc", "_id":1 } ] } # 6 批量插入 PUT test/_doc/2/_create { "field1" : "value22" } POST _bulk { "index" : { "_index" : "test", "_id" : "1" } } { "field1" : "value1" } { "delete" : { "_index" : "test", "_id" : "2" } } { "create" : { "_index" : "test", "_id" : "3" } } { "field1" : "value3" } { "update" : {"_id" : "1", "_index" : "test"} } { "doc" : {"field2" : "value2"} }
# 测试数据 PUT lqz/doc/1 { "name":"顾老二", "age":30, "from": "gu", "desc": "皮肤黑、武器长、性格直", "tags": ["黑", "长", "直"] } PUT lqz/doc/2 { "name":"大娘子", "age":18, "from":"sheng", "desc":"肤白貌美,娇憨可爱", "tags":["白", "富","美"] } PUT lqz/doc/3 { "name":"龙套偏房", "age":22, "from":"gu", "desc":"mmp,没怎么看,不知道怎么形容", "tags":["造数据", "真","难"] } # 两种方式 -第一种(字符串查询) GET lqz/doc/_search?q=from:gu GET lqz/doc/_search?q=age:22 -查询的第二种方式(结构化) GET lqz/doc/_search { "query": { "match": { "from": "gu" } } } GET lqz/doc/_search { "query": { "match": { "age": 22 } } } GET lqz/doc/_search { "query": { "match": { "desc": "形容" } } } GET lqz/doc/_search { "query": { "match": { "tags": "造数据" } } }