前面简单的使用过term查询过，这里进行加深的学习。
1.说明
单词级别查询 这些查询通常⽤于结构化的数据，⽐如：number, date, keyword等，⽽不是对text。
也就是说，全⽂本查询之前要先对⽂本内容进⾏分词，⽽单词级别的查询直接在相应字段的
反向索引中精确查找，单词级别的查询⼀般⽤于数值、⽇期等类型的字段上
2.准备数据
删除索引
添加索引
批量导入数据
DELETE /nba
PUT /nba
{
"mappings": {
"properties": {
"birthDay": {
"type": "date"
},
"birthDayStr": {
"type": "keyword"
},
"age": {
"type": "integer"
},
"code": {
"type": "text"
},
"country": {
"type": "text"
},
"countryEn": {
"type": "text"
},
"displayAffiliation": {
"type": "text"
},
"displayName": {
"type": "text"
},
"displayNameEn": {
"type": "text"
},
"draft": {
"type": "long"
},
"heightValue": {
"type": "float"
},
"jerseyNo": {
"type": "text"
},
"playYear": {
"type": "long"
},
"playerId": {
"type": "keyword"
},
"position": {
"type": "text"
},
"schoolType": {
"type": "text"
},
"teamCity": {
"type": "text"
},
"teamCityEn": {
"type": "text"
},
"teamConference": {
"type": "keyword"
},
"teamConferenceEn": {
"type": "keyword"
},
"teamName": {
"type": "keyword"
},
"teamNameEn": {
"type": "keyword"
},
"weight": {
"type": "text"
}
}
}
}
3.Term query 精准匹配查询(查找号码为23的球员)
POST nba/_search
{
"query": {
"term": {
"jerseyNo": "23"
}
}
}
4.Exsit Query 在特定的字段中查找⾮空值的⽂档(查找队名⾮空的球员)
POST nba/_search
{
"query": {
"exists": {
"field": "teamNameEn"
}
}
}
5.Prefix Query 查找包含带有指定前缀term的⽂档(查找队名以Rock开头的球员)
POST nba/_search
{
"query": {
"prefix": {
"teamNameEn": "Rock"
}
}
}
6.Wildcard Query ⽀持通配符查询，*表示任意字符，?表示任意单个字符(查找⽕箭队的球员)
POST nba/_search
{
"query": {
"wildcard": {
"teamNameEn": "Ro*s"
}
}
}
7.Regexp Query 正则表达式查询(查找⽕箭队的球员)
POST nba/_search
{
"query": {
"regexp": {
"teamNameEn": "Ro.*s"
}
}
}
8.Ids Query(查找id为1和2的球员)
POST nba/_search
{
"query": {
"ids": {
"values": [1, 2]
}
}
}
结果：
{
"took" : 1,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : 1.0,
"hits" : [
{
"_index" : "nba",
"_type" : "_doc",
"_id" : "1",
"_score" : 1.0,
"_source" : {
"countryEn" : "United States",
"teamName" : "老鹰",
"birthDay" : 831182400000,
"country" : "美国",
"teamCityEn" : "Atlanta",
"code" : "jaylen_adams",
"displayAffiliation" : "United States",
"displayName" : "杰伦 亚当斯",
"schoolType" : "College",
"teamConference" : "东部",
"teamConferenceEn" : "Eastern",
"weight" : "86.2 公斤",
"teamCity" : "亚特兰大",
"playYear" : 1,
"jerseyNo" : "10",
"teamNameEn" : "Hawks",
"draft" : 2018,
"displayNameEn" : "Jaylen Adams",
"heightValue" : 1.88,
"birthDayStr" : "1996-05-04",
"position" : "后卫",
"age" : 23,
"playerId" : "1629121"
}
},
{
"_index" : "nba",
"_type" : "_doc",
"_id" : "2",
"_score" : 1.0,
"_source" : {
"countryEn" : "New Zealand",
"teamName" : "雷霆",
"birthDay" : 743140800000,
"country" : "新西兰",
"teamCityEn" : "Oklahoma City",
"code" : "steven_adams",
"displayAffiliation" : "Pittsburgh/New Zealand",
"displayName" : "斯蒂文 亚当斯",
"schoolType" : "College",
"teamConference" : "西部",
"teamConferenceEn" : "Western",
"weight" : "120.2 公斤",
"teamCity" : "俄克拉荷马城",
"playYear" : 6,
"jerseyNo" : "12",
"teamNameEn" : "Thunder",
"draft" : 2013,
"displayNameEn" : "Steven Adams",
"heightValue" : 2.13,
"birthDayStr" : "1993-07-20",
"position" : "中锋",
"age" : 26,
"playerId" : "203500"
}
}
]
}
}