基本Rest命令说明：
1.索引的基本操作
1.1.创建索引
PUT /索引名/~类型名~/文档id
{
请求体
}
##添加或者覆盖更新(会覆盖未选中字段)
PUT mine/user/3
{
"name":"wangwu3",
"age":12
}
{
"_index" : "mine",
"_type" : "user",
"_id" : "3",
"_version" : 1,
"result" : "created",
"_shards" : {
"total" : 2,
"successful" : 1,
"failed" : 0
},
"_seq_no" : 0,
"_primary_term" : 1
}
完成了自动增加索引
类型
- 字符串
text、keyword - 数值类型
long、integer、short、byte、dubble、float、half float、scaled float - 日期类型
date - te布尔值类型
boolean - 二进制类型
binary - ……
1.3.指定字段类型
##指定字段类型
PUT test_index
{
"mappings": {
"properties": {
"name":{
"type": "text"
},
"age":{
"type": "long"
},
"birth":{
"type": "date"
},
"desc":{
"type": "keyword"
}
}
}
}
{
"acknowledged" : true,
"shards_acknowledged" : true,
"index" : "test_index"
}
获取信息 ，通过GET请求获取我们需要的信息
GET test_index
{
"test_index" : {
"aliases" : { },
"mappings" : {
"properties" : {
"age" : {
"type" : "long"
},
"birth" : {
"type" : "date"
},
"desc" : {
"type" : "keyword"
},
"name" : {
"type" : "text"
}
}
},
"settings" : {
"index" : {
"creation_date" : "1622183843872",
"number_of_shards" : "1",
"number_of_replicas" : "1",
"uuid" : "rqoMjj0OQTejZLPp5o6WCw",
"version" : {
"created" : "7060199"
},
"provided_name" : "test_index"
}
}
}
}
1.4.查看默认信息
PUT test_01/_doc/1
{
"name":"李四",
"age":25,
"birth":"2020-05-27",
"desc":"654321"
}
GET test_01
{
"test_01" : {
"aliases" : { },
"mappings" : {
"properties" : {
"age" : {
"type" : "long"
},
"birth" : {
"type" : "date"
},
"desc" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"name" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
}
}
},
"settings" : {
"index" : {
"creation_date" : "1622184365053",
"number_of_shards" : "1",
"number_of_replicas" : "1",
"uuid" : "6N1-OU2KQ8q6DL6w_tes0g",
"version" : {
"created" : "7060199"
},
"provided_name" : "test_01"
}
}
}
}
如果不指定字段类型、那么es会默认指定数据类型
扩展：通过命令elasticSearch索引情况，通过get _cat/ 可以获得es的当前很多信息
##扩展：通过命令elasticSearch索引情况，通过get _cat/ 可以获得es的当前很多信息
GET _cat/indices?v
1.5.删除索引
##删除索引
DELETE test_index
{
"acknowledged" : true
}
2.文档的基本操作
2.1.添加数据
PUT /everyingo/user/1
{
"name":"张三",
"age":10,
"desc":"湖北人",
"tags":["技术宅","暖男","细心"]
}
PUT /everyingo/user/2
{
"name":"李四",
"age":20,
"desc":"湖南人",
"tags":["死肥宅","冷男","粗心"]
}
PUT /everyingo/user/3
{
"name":"王五",
"age":30,
"desc":"江西人",
"tags":["就是宅","暖女","小心"]
}
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "1",
"_version" : 1,
"result" : "created",
"_shards" : {
"total" : 2,
"successful" : 1,
"failed" : 0
},
"_seq_no" : 0,
"_primary_term" : 1
}
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "2",
"_version" : 1,
"result" : "created",
"_shards" : {
"total" : 2,
"successful" : 1,
"failed" : 0
},
"_seq_no" : 1,
"_primary_term" : 1
}
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "3",
"_version" : 1,
"result" : "created",
"_shards" : {
"total" : 2,
"successful" : 1,
"failed" : 0
},
"_seq_no" : 2,
"_primary_term" : 1
}
2.2.获取数据GET
GET /everyingo/user/3
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "3",
"_version" : 1,
"_seq_no" : 2,
"_primary_term" : 1,
"found" : true,
"_source" : {
"name" : "王五",
"age" : 30,
"desc" : "江西人",
"tags" : [
"就是宅",
"暖女",
"小心"
]
}
}
2.3.更新数据PUT(put如果不传值就会被覆盖)
PUT /everyingo/user/3
{
"name":"王五",
"age":30,
"desc":"江西人",
"tags":["就是宅","暖女","小心心"]
}
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "3",
"_version" : 2,
"result" : "updated",
"_shards" : {
"total" : 2,
"successful" : 1,
"failed" : 0
},
"_seq_no" : 3,
"_primary_term" : 1
}
2.4.POST更新，推荐使用这种方式(灵活性更好)
POST /everyingo/user/3/_update
{
"doc":{
"name":"王5"
}
}
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "3",
"_version" : 3,
"result" : "updated",
"_shards" : {
"total" : 2,
"successful" : 1,
"failed" : 0
},
"_seq_no" : 4,
"_primary_term" : 1
}
3.简单的搜索
3.1获取数据GET
GET /everyingo/user/3
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "3",
"_version" : 3,
"_seq_no" : 4,
"_primary_term" : 1,
"found" : true,
"_source" : {
"name" : "王5",
"age" : 30,
"desc" : "江西人",
"tags" : [
"就是宅",
"暖女",
"小心心"
]
}
}
3.2.简单的条件搜索，可以根据默认的映射规则，产生基本的查询
GET /everyingo/user/_search?q=name:张
{
"took" : 123,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 1,
"relation" : "eq"
},
"max_score" : 1.3862942,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "1",
"_score" : 1.3862942,
"_source" : {
"name" : "张三",
"age" : 10,
"desc" : "湖北人",
"tags" : [
"技术宅",
"暖男",
"细心"
]
}
}
]
}
}
4.复杂操作搜索select(排序，分页，高亮，模糊查询，精准查询)
4.1.查询的参数使用Json构造
GET /everyingo/user/_search
{
"query": {
"match": {
"desc": "湖"
}
}
}
{
"took" : 2,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : 0.87546873,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "1",
"_score" : 0.87546873,
"_source" : {
"name" : "张三",
"age" : 10,
"desc" : "湖北人",
"tags" : [
"技术宅",
"暖男",
"细心"
]
}
},
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "2",
"_score" : 0.87546873,
"_source" : {
"name" : "李四",
"age" : 20,
"desc" : "湖南人",
"tags" : [
"死肥宅",
"冷男",
"粗心"
]
}
}
]
}
}
4.2.输出结果不想要那么多,指定字段返回(类似select field1,field2 from table_name)
GET /everyingo/user/_search
{
"query": {
"match": {
"desc": "湖"
}
}
, "_source": ["name","desc"]
}
{
"took" : 1,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : 0.87546873,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "1",
"_score" : 0.87546873,
"_source" : {
"name" : "张三",
"desc" : "湖北人"
}
},
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "2",
"_score" : 0.87546873,
"_source" : {
"name" : "李四",
"desc" : "湖南人"
}
}
]
}
}
4.3.排序
GET /everyingo/user/_search
{
"query": {
"match": {
"desc": "湖"
}
},
"sort": [
{
"age": {
"order": "desc"
}
}
]
}
#! Deprecation: [types removal] Specifying types in search requests is deprecated.
{
"took" : 1,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : null,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "2",
"_score" : null,
"_source" : {
"name" : "李四",
"age" : 20,
"desc" : "湖南人",
"tags" : [
"死肥宅",
"冷男",
"粗心"
]
},
"sort" : [
20
]
},
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "1",
"_score" : null,
"_source" : {
"name" : "张三",
"age" : 10,
"desc" : "湖北人",
"tags" : [
"技术宅",
"暖男",
"细心"
]
},
"sort" : [
10
]
}
]
}
}
4.4.分页查询(from:从第几个数据开始，size:返回多少条数据即pageSize)
GET /everyingo/user/_search
{
"query": {
"match": {
"desc": "湖"
}
},
"sort": [
{
"age": {
"order": "desc"
}
}
],
"from": 0,
"size": 1
}
#! Deprecation: [types removal] Specifying types in search requests is deprecated.
{
"took" : 2,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : null,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "2",
"_score" : null,
"_source" : {
"name" : "李四",
"age" : 20,
"desc" : "湖南人",
"tags" : [
"死肥宅",
"冷男",
"粗心"
]
},
"sort" : [
20
]
}
]
}
}
4.5.布尔值查询
- must(and),所有的条件都要符合 where id=1 and name=xxx
GET /everyingo/user/_search
{
"query": {
"bool": {
"must": [
{
"match": {
"desc": "湖"
}
},
{
"match": {
"age": "20"
}
}
]
}
}
}
#! Deprecation: [types removal] Specifying types in search requests is deprecated.
{
"took" : 4,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 1,
"relation" : "eq"
},
"max_score" : 1.4700036,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "2",
"_score" : 1.4700036,
"_source" : {
"name" : "李四",
"age" : 20,
"desc" : "湖南人",
"tags" : [
"死肥宅",
"冷男",
"粗心"
]
}
}
]
}
}
- should(or),符合其中一个条件 where id=1 or name=xxx
GET /everyingo/user/_search
{
"query": {
"bool": {
"should": [
{
"match": {
"desc": "湖"
}
},
{
"match": {
"age": 30
}
}
]
}
}
}
#! Deprecation: [types removal] Specifying types in search requests is deprecated.
{
"took" : 2,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 3,
"relation" : "eq"
},
"max_score" : 1.0,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "3",
"_score" : 1.0,
"_source" : {
"name" : "王5",
"age" : 30,
"desc" : "江西人",
"tags" : [
"就是宅",
"暖女",
"小心心"
]
}
},
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "1",
"_score" : 0.4700036,
"_source" : {
"name" : "张三",
"age" : 10,
"desc" : "湖北人",
"tags" : [
"技术宅",
"暖男",
"细心"
]
}
},
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "2",
"_score" : 0.4700036,
"_source" : {
"name" : "李四",
"age" : 20,
"desc" : "湖南人",
"tags" : [
"死肥宅",
"冷男",
"粗心"
]
}
}
]
}
}
- must_not(not) where id!=xxx
GET /everyingo/user/_search
{
"query": {
"bool": {
"must_not": [
{
"match": {
"age": 20
}
}
]
}
}
}
#! Deprecation: [types removal] Specifying types in search requests is deprecated.
{
"took" : 137,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : 0.0,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "1",
"_score" : 0.0,
"_source" : {
"name" : "张三",
"age" : 10,
"desc" : "湖北人",
"tags" : [
"技术宅",
"暖男",
"细心"
]
}
},
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "3",
"_score" : 0.0,
"_source" : {
"name" : "王5",
"age" : 30,
"desc" : "江西人",
"tags" : [
"就是宅",
"暖女",
"小心心"
]
}
}
]
}
}
4.6.过滤器filter
# gt 大于
# gte 大于等于
# lt 小于
# lte 小于等于
GET /everyingo/user/_search
{
"query": {
"bool": {
"must": [
{
"match": {
"desc": "湖"
}
}
],
"filter": {
"range": {
"age": {
"gte": 10,
"lte": 15
}
}
}
}
}
}
#! Deprecation: [types removal] Specifying types in search requests is deprecated.
{
"took" : 1,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 1,
"relation" : "eq"
},
"max_score" : 0.4700036,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "1",
"_score" : 0.4700036,
"_source" : {
"name" : "张三",
"age" : 10,
"desc" : "湖北人",
"tags" : [
"技术宅",
"暖男",
"细心"
]
}
}
]
}
}
4.7.匹配多个条件(多个条件使用空格隔开,只要满足其中一个结果就可以被查出,这个时候可以通过分值基本的判断)
GET /everyingo/user/_search
{
"query": {
"match": {
"tags": "技术 女"
}
}
}
#! Deprecation: [types removal] Specifying types in search requests is deprecated.
{
"took" : 0,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : 1.9988267,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "1",
"_score" : 1.9988267,
"_source" : {
"name" : "张三",
"age" : 10,
"desc" : "湖北人",
"tags" : [
"技术宅",
"暖男",
"细心"
]
}
},
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "3",
"_score" : 0.94566,
"_source" : {
"name" : "王5",
"age" : 30,
"desc" : "江西人",
"tags" : [
"就是宅",
"暖女",
"小心心"
]
}
}
]
}
}
4.8.精确查询
term查询是直接通过倒排索引指定的词条进行精准查找的
关于分词：
- term：直接查询精确的
- match：会使用分词器解析(先分析文档，然后再通过分析的文档进行查询)
两个类型
- text 会被分词器解析
- keyword 不会被分词器解析
没有被拆分:
#没有被拆分
GET _analyze
{
"analyzer": "keyword",
"text": "武汉说Java name"
}
{
"tokens" : [
{
"token" : "武汉说Java name",
"start_offset" : 0,
"end_offset" : 12,
"type" : "word",
"position" : 0
}
]
}
可以看到被拆分:
#可以看到被拆分
GET _analyze
{
"analyzer": "standard",
"text": "武汉说Java name"
}
{
"tokens" : [
{
"token" : "武",
"start_offset" : 0,
"end_offset" : 1,
"type" : "<IDEOGRAPHIC>",
"position" : 0
},
{
"token" : "汉",
"start_offset" : 1,
"end_offset" : 2,
"type" : "<IDEOGRAPHIC>",
"position" : 1
},
{
"token" : "说",
"start_offset" : 2,
"end_offset" : 3,
"type" : "<IDEOGRAPHIC>",
"position" : 2
},
{
"token" : "java",
"start_offset" : 3,
"end_offset" : 7,
"type" : "<ALPHANUM>",
"position" : 3
},
{
"token" : "name",
"start_offset" : 8,
"end_offset" : 12,
"type" : "<ALPHANUM>",
"position" : 4
}
]
}
text 和 keyword 区别
PUT testdb
{
"mappings": {
"properties": {
"name":{
"type": "text"
},
"desc":{
"type": "keyword"
}
}
}
}
#
PUT /testdb/_doc/1
{
"name":"武汉说Java name",
"desc":"武汉说Java desc"
}
#
PUT /testdb/_doc/2
{
"name":"武汉说Java name2",
"desc":"武汉说Java desc2"
}
GET /testdb
{
"testdb" : {
"aliases" : { },
"mappings" : {
"properties" : {
"desc" : {
"type" : "keyword"
},
"name" : {
"type" : "text"
}
}
},
"settings" : {
"index" : {
"creation_date" : "1622185788983",
"number_of_shards" : "1",
"number_of_replicas" : "1",
"uuid" : "3xfyB2M6QYCuV0vIc6CtPA",
"version" : {
"created" : "7060199"
},
"provided_name" : "testdb"
}
}
}
}
GET /testdb/_search
{
"query": {
"term": {
"name":"java"
}
}
}
#result
{
"took" : 3,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : 0.18232156,
"hits" : [
{
"_index" : "testdb",
"_type" : "_doc",
"_id" : "1",
"_score" : 0.18232156,
"_source" : {
"name" : "武汉说Java name",
"desc" : "武汉说Java desc"
}
},
{
"_index" : "testdb",
"_type" : "_doc",
"_id" : "2",
"_score" : 0.18232156,
"_source" : {
"name" : "武汉说Java name2",
"desc" : "武汉说Java desc2"
}
}
]
}
}
#keyword字段类型不会被分词器解析
GET /testdb/_search
{
"query": {
"term": {
"desc":"武汉说Java desc"
}
}
}
#result
{
"took" : 0,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 1,
"relation" : "eq"
},
"max_score" : 0.6931471,
"hits" : [
{
"_index" : "testdb",
"_type" : "_doc",
"_id" : "1",
"_score" : 0.6931471,
"_source" : {
"name" : "武汉说Java name",
"desc" : "武汉说Java desc"
}
}
]
}
}
4.9.多个值匹配精确查询
##多个值匹配精确查询
GET /everyingo/user/_search
{
"query": {
"bool": {
"should": [
{
"term": {
"desc": "江"
}
},
{
"term": {
"age": 20
}
}
]
}
}
}
#! Deprecation: [types removal] Specifying types in search requests is deprecated.
{
"took" : 0,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : 1.0,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "2",
"_score" : 1.0,
"_source" : {
"name" : "李四",
"age" : 20,
"desc" : "湖南人",
"tags" : [
"死肥宅",
"冷男",
"粗心"
]
}
},
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "3",
"_score" : 0.9808291,
"_source" : {
"name" : "王5",
"age" : 30,
"desc" : "江西人",
"tags" : [
"就是宅",
"暖女",
"小心心"
]
}
}
]
}
}
4.10.高亮查询
##高亮查询
GET /everyingo/user/_search
{
"query": {
"match": {
"desc": "湖"
}
},
"highlight": {
"fields": {
"desc": {}
}
}
}
#! Deprecation: [types removal] Specifying types in search requests is deprecated.
{
"took" : 131,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : 0.4700036,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "1",
"_score" : 0.4700036,
"_source" : {
"name" : "张三",
"age" : 10,
"desc" : "湖北人",
"tags" : [
"技术宅",
"暖男",
"细心"
]
},
"highlight" : {
"desc" : [
"<em>湖</em>北人"
]
}
},
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "2",
"_score" : 0.4700036,
"_source" : {
"name" : "李四",
"age" : 20,
"desc" : "湖南人",
"tags" : [
"死肥宅",
"冷男",
"粗心"
]
},
"highlight" : {
"desc" : [
"<em>湖</em>南人"
]
}
}
]
}
}
4.11.自定义搜索高亮条件
##自定义搜索高亮条件
GET /everyingo/user/_search
{
"query": {
"match": {
"desc": "湖"
}
},
"highlight": {
"pre_tags": "<p class='key' style='color:red'>",
"post_tags": "</p>",
"fields": {
"desc": {}
}
}
}
#! Deprecation: [types removal] Specifying types in search requests is deprecated.
{
"took" : 1,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : 0.4700036,
"hits" : [
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "1",
"_score" : 0.4700036,
"_source" : {
"name" : "张三",
"age" : 10,
"desc" : "湖北人",
"tags" : [
"技术宅",
"暖男",
"细心"
]
},
"highlight" : {
"desc" : [
"<p class='key' style='color:red'>湖</p>北人"
]
}
},
{
"_index" : "everyingo",
"_type" : "user",
"_id" : "2",
"_score" : 0.4700036,
"_source" : {
"name" : "李四",
"age" : 20,
"desc" : "湖南人",
"tags" : [
"死肥宅",
"冷男",
"粗心"
]
},
"highlight" : {
"desc" : [
"<p class='key' style='color:red'>湖</p>南人"
]
}
}
]
}
}