ElasticSearch入門3: 高級查詢
單字段 模糊匹配查詢與精準查詢
postman請求
POST 127.0.0.1:9200/book/_search
請求json：
{
"query":{
"match":{
"name":"曉明9"
}
}
}
注：match 模糊查詢的標識 ：查詢內容自動拆分紅分詞來查詢
若match 改成 match_phrase ：精準查詢 具體能夠查看 http://www.cnblogs.com/liuxiaoming123/p/8119217.html
響應結果：
{
"took": 51,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 4,
"max_score": 0.5753642,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "1",
"_score": 0.5753642,
"_source": {
"name": "曉明1",
"country": "china1",
"age": 26,
"date": "1992-08-08"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "5",
"_score": 0.28363907,
"_source": {
"name": "曉明",
"country": "china",
"age": 26,
"date": "1992-08-08"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "8",
"_score": 0.28363907,
"_source": {
"name": "曉明",
"country": "china",
"age": 26,
"date": "1992-08-08"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "9",
"_score": 0.23911436,
"_source": {
"name": "曉明9",
"country": "china9",
"age": 26,
"date": "1992-08-08"
}
}
]
}
}
多字段 模糊匹配查詢與精準查詢
postman請求URL：
POST 127.0.0.1:9200/book/_search
請求json字符串:
{
"query":{
"multi_match":{
"query":"曉明china",
"fields":["name","country"]
}
}
}
注：multi_match爲指定多字段匹配
響應結果：
{
"took": 42,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 4,
"max_score": 0.5753642,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "1",
"_score": 0.5753642,
"_source": {
"name": "曉明1",
"country": "china1",
"age": 26,
"date": "1992-08-08"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "5",
"_score": 0.47000363,
"_source": {
"name": "曉明",
"country": "china",
"age": 26,
"date": "1992-08-08"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "8",
"_score": 0.47000363,
"_source": {
"name": "曉明",
"country": "china",
"age": 26,
"date": "1992-08-08"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "9",
"_score": 0.23911436,
"_source": {
"name": "曉明9",
"country": "china9",
"age": 26,
"date": "1992-08-08"
}
}
]
}
}
語法查詢
未指定字段：
postman請求：
POST 127.0.0.1:9200/book/_search
請求json字符串：
{
"query":{
"query_string":{
"query":"(ElasticSearch AND 入門) OR SpringBoot"
}
}
}
返回結果：
{
"took": 21,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 2,
"max_score": 2.634553,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "9",
"_score": 2.634553,
"_source": {
"name": "ElasticSearch 入門",
"country": "china9",
"age": 26,
"date": "1992-08-08"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "1",
"_score": 0.2876821,
"_source": {
"name": "SpringBoot",
"country": "china1",
"age": 26,
"date": "1992-08-08"
}
}
]
}
}
語法查詢
指定字段：html
postman請求：
POST 127.0.0.1:9200/book/_search
請求json字符串：
{
"query":{
"query_string":{
"query":"SpringBoot OR 中國",
"fields":["name","country"]
}
}
}
響應結果：
{
"took": 11,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 0.8630463,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "1",
"_score": 0.8630463,
"_source": {
"name": "SpringBoot",
"country": "中國",
"age": 26,
"date": "1992-08-08"
}
}
]
}
}
（結構化數據的查詢）spring
指定字段查詢：（term）json
postman請求：
POST 127.0.0.1:9200/book/_search
請求json字符串：
{
"query" :
{
"term" : {"name" : "springboot"}
}
}
響應結果：
{
"took": 4,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 0.2876821,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "1",
"_score": 0.2876821,
"_source": {
"name": "SpringBoot",
"country": "中國",
"age": 26,
"date": "1992-08-08"
}
}
]
}
}
注：若查詢英文時 應全字母小寫 精確查詢springboot
若查詢中文時 應按單個字來查詢post
範圍查詢：spa
注：json請求字符串中部分字段的含義3d
range：範圍關鍵字code
gte 大於等於htm
lte 小於等於blog
gt 大於
lt 小於
now 當前時間
postman請求：
127.0.0.1:9200/book/_search
請求json字符串：
{
"query" :
{
"range" : {
"date" : {
"gte":"2017-01-01",
"lte":"now"
}
}
}
}
響應結果：
{
"took": 7,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 1,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "9",
"_score": 1,
"_source": {
"name": "ElasticSearch 入門",
"country": "china9",
"age": 28,
"date": "2017-08-08"
}
}
]
}
}
Filter Context(對數據進行過濾)
postman請求：
POST 127.0.0.1:9200/book/_search
請求json字符串：
{
"query" : {
"bool" : {
"filter" : {
"term":{
"age":20
}
}
}
}
}
響應結果：
{
"took": 24,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 1,
"max_score": 0,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "1",
"_score": 0,
"_source": {
"name": "SpringBoot",
"country": "中國",
"age": 20,
"date": "1992-08-08"
}
}
]
}
}
注： boost 固定響應結果分數的值
postman請求：
POST 127.0.0.1:9200/_search
請求json字符串：
{
"query" : {
"constant_score" : {
"filter" : {
"match":{
"name":"曉明"
}
},
"boost":2
}
}
}
響應結果：
{
"took": 11,
"timed_out": false,
"_shards": {
"total": 8,
"successful": 8,
"skipped": 0,
"failed": 0
},
"hits": {
"total": 2,
"max_score": 2,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "5",
"_score": 2,
"_source": {
"name": "曉明",
"country": "china",
"age": 26,
"date": "1992-08-08"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "8",
"_score": 2,
"_source": {
"name": "曉明8",
"country": "china",
"age": 26,
"date": "1992-08-08"
}
}
]
}
}
should關鍵詞：或的關係
若should改成must 關鍵詞則表示 和的關係
postman請求：
POST 127.0.0.1:9200/_search
請求json字符串：
1.shuld:
{
"query" : {
"bool" : {
"should" : [
{
"match":{"name":"springboot"}
},
{
"match":{"country":"中國"}
}
]
}
}
}
2.must: {
"query" : {
"bool" : {
"must" : [
{
"match":{"name":"springboot"}
},
{
"match":{"country":"中國"}
}
]
}
}
}
3.must filter: {
"query" : {
"bool" : {
"must" : [
{
"match":{"name":"springboot"}
},
{
"match":{"country":"中國"}
}
],
"filter":[
{
"term":{
"age":20
}
}
]
}
}
}
4.must_not:
{
"query" : {
"bool" : {
"must_not" : { "term":{"age":20} } } }}
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