全文搜索ElasticSearch（一）数据的增删改查
ElasticSearch采用Java编写，提供简单易用的RESTFul API。我们可以直接通过API接口进行操作。 笔者使用的ElasticSearch版本：elasticsearch-6.3.0
API基本格式 http://
# 索引创建
# 非结构化创建
使用Head插件直接点击添加索引创建。 直接请求创建 $ curl -XPUT http://localhost:9200/book
# 结构化创建
方式1：首先创建book索引
PUT http://localhost:9200/book。
1
再添加novel类型以及定义结构。
POST http://localhost:9200/book/novel/_mappings
{
"novel": {
"properties": {
"title": {
"type": "text"
}
}
}
}
1
2
3
4
5
6
7
8
9
10
2
3
4
5
6
7
8
9
10
方式2：直接创建people结构化索引指定配置信息已经数据结构。
// 创建
PUT http://localhost:9200/people
{
"settings":{
"number_of_shards": 3,
"number_of_replicas": 1
},
"mappings":{
"man":{
"properties":{
"name":{
"type":"text"
},
"country":{
"type":"keyword"
},
"age":{
"type":"integer"
},
"date":{
"type":"date",
"format":"yyyy-MM-dd HH:mm:ss || yyyy-MM-dd || epoch_millis"
}
}
},
"woman":{
}
}
}
// 响应
{
"acknowledged": true,
"shards_acknowledged": true
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
# 查看索引信息
查询一个索引是否为结构化索引，我们只需要查询索引信息，然后查看mappings属性是否有值，如果为空，则为非结构化索引，如果有相关的属性值，则是结构化索引。下面查看book索引信息：
GET http://localhost:9200/book?pretty=true
{
"book": {
"aliases": {},
"mappings": {
"novel": {
"properties": {
"title": {
"type": "text"
}
}
}
},
"settings": {
"index": {
"creation_date": "1523851142335",
"number_of_shards": "5",
"number_of_replicas": "1",
"uuid": "nbQPVXqqR--eRy_1S3OZqw",
"version": {
"created": "5050199"
},
"provided_name": "book"
}
}
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
# 数据插入
# 根据文档ID插入
直接POST请求 http://
POST http://localhost:9200/people/man/1
{
"name":"达西",
"conuntry":"China",
"age":24,
"date":"1994-11-01"
}
// 响应
{
"_index": "people",
"_type": "man",
"_id": "1",
"_version": 1,
"result": "created",
"_shards": {
"total": 2,
"successful": 1,
"failed": 0
},
"created": true
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
# 自动生成文档ID插入
在发起POST请求的时候，不指定ID的值，ES会自动生成一个ID值。
POST http://localhost:9200/people/man
{
"name":"超级玛丽",
"conuntry":"China",
"age":24,
"date":"1994-11-01"
}
// 响应
{
"_index": "people",
"_type": "man",
"_id": "AWLNIi3-QcKhhHA2xN6t", // 自动生成的ID值
"_version": 1,
"result": "created",
"_shards": {
"total": 2,
"successful": 1,
"failed": 0
},
"created": true
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
# 数据修改
# 直接修改
修改people索引中类型为man的ID为1的文档的name字段值为“曹操”
POST http://localhost:9200/people/man/1/_update
{
"doc":{
"name":"曹操"
}
}
// 响应
{
"_index": "people",
"_type": "man",
"_id": "1",
"_version": 5,
"result": "updated",
"_shards": {
"total": 2,
"successful": 1,
"failed": 0
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
# 脚本修改
修改people索引中类型为man的ID为1的文档的age字段值为自增10。
POST http://localhost:9200/people/man/1/_update
{
"script":{
"lang":"painless",
"inline":"ctx._source.age+=10"
}
}
// 响应
{
"_index": "people",
"_type": "man",
"_id": "1",
"_version": 9,
"result": "updated",
"_shards": {
"total": 2,
"successful": 1,
"failed": 0
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
另外一种方式
POST http://localhost:9200/people/man/1/_update
{
"script":{
"lang":"painless",
"inline":"ctx._source.age=params.age",
"params":{
"age":900
}
}
}
// 响应
{
"_index": "people",
"_type": "man",
"_id": "1",
"_version": 10,
"result": "updated",
"_shards": {
"total": 2,
"successful": 1,
"failed": 0
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
# 删除
# 文档删除
删除people索引中类型为man，ID为1的文档。
DELETE http://localhost:9200/people/man/1
// 响应
{
"found": true,
"_index": "people",
"_type": "man",
"_id": "1",
"_version": 11,
"result": "deleted",
"_shards": {
"total": 2,
"successful": 1,
"failed": 0
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
# 索引删除
删除people索引
DELETE http://localhost:9200/people
// 响应
{
"acknowledged": true
}
1
2
3
4
5
6
2
3
4
5
6
# 基本查询
# 数据准备
创建book索引，设置结构：
POST http://localhost:9200/book/novel/_mappings
{
"novel":{
"properties":{
"title":{
"type":"text"
},
"author":{
"type":"text"
},
"word_count":{
"type":"integer"
},
"publish_date":{
"type":"date",
"format":"yyyy-MM-dd HH:mm:ss || yyyy-MM-dd || epoch_millis"
}
}
}
}
// 响应
{
"acknowledged": true
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
录入用于测试的数据：
{"title":"超级玛丽秘籍","author":"王五","word_count":5000,"publish_date":"1994-11-01"}
{"title":"三国志","author":"陈寿","word_count":30000,"publish_date":"1995-11-01"}
{"title":"三国演绎","author":"罗贯中","word_count":30000,"publish_date":"1994-03-01"}
{"title":"玛丽与管道工","author":"玛丽","word_count":10000,"publish_date":"1994-03-01"}
{"title":"史记","author":"司马迁","word_count":20000,"publish_date":"1994-08-01"}
{"title":"如何蹦的更高","author":"玛丽","word_count":20000,"publish_date":"1994-08-01"}
1
2
3
4
5
6
2
3
4
5
6
# 查询
# 全部查询
查询book索引中类型为novel的所有文档信息。
GET localhost:9200/book/novel/_search?pretty=true
// 响应
{
"took" : 80, // 花费时间
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits" : {
"total" : 5, //总条数
"max_score" : 1.0,
"hits" : [
{
"_index" : "book",
"_type" : "novel",
"_id" : "AWLOAAZzQcKhhHA2xN6z",
"_score" : 1.0, //评分
"_source" : {
"title" : "超级玛丽秘籍",
"author" : "王五",
"word_count" : 5000,
"publish_date" : "1994-11-01"
}
},
{
"_index" : "book",
"_type" : "novel",
"_id" : "AWLOAEe5QcKhhHA2xN62",
"_score" : 1.0,
"_source" : {
"title" : "玛丽与管道工",
"author" : "陈寿",
"word_count" : 10000,
"publish_date" : "1994-03-01"
}
},
{
"_index" : "book",
"_type" : "novel",
"_id" : "AWLOAB8bQcKhhHA2xN60",
"_score" : 1.0,
"_source" : {
"title" : "三国志",
"author" : "陈寿",
"word_count" : 30000,
"publish_date" : "1995-11-01"
}
},
{
"_index" : "book",
"_type" : "novel",
"_id" : "AWLOADU4QcKhhHA2xN61",
"_score" : 1.0,
"_source" : {
"title" : "三国演绎",
"author" : "罗贯中",
"word_count" : 30000,
"publish_date" : "1994-03-01"
}
},
{
"_index" : "book",
"_type" : "novel",
"_id" : "AWLOAFiZQcKhhHA2xN63",
"_score" : 1.0,
"_source" : {
"title" : "史记",
"author" : "司马迁",
"word_count" : 20000,
"publish_date" : "1994-08-01"
}
}
]
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
# 精确查询
查询book索引中类型为novel的ID为AWLOAFiZQcKhhHA2xN63的文档信息。
GET localhost:9200/book/novel/AWLOAFiZQcKhhHA2xN63?pretty=true
// 响应
{
"_index" : "book",
"_type" : "novel",
"_id" : "AWLOAFiZQcKhhHA2xN63",
"_version" : 1,
"found" : true,
"_source" : {
"title" : "史记",
"author" : "司马迁",
"word_count" : 20000,
"publish_date" : "1994-08-01"
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
# 限制查询条数
搜索从第一条开始的1条数据。
POST http://localhost:9200/book/novel/_search
{
"query":{
"match_all":{}
},
"from":1,
"size":1
}
// 响应
{
"took": 37,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 5,
"max_score": 1,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "AWLOAEe5QcKhhHA2xN62",
"_score": 1,
"_source": {
"title": "玛丽与管道工",
"author": "陈寿",
"word_count": 10000,
"publish_date": "1994-03-01"
}
}
]
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
# 关键词排序查询
查询标题里含有“三国”的书籍，并且按出版日期降序排列。
POST http://localhost:9200/book/novel/_search
{
"query":{
"match":{
"title":"三国"
}
},
"sort":[
{
"publish_date":{"order":"desc"}
}
]
}
// 响应
{
"took": 200,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 2,
"max_score": 0.34450945,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "AWLOAB8bQcKhhHA2xN60",
"_score": 0.34450945,
"_source": {
"title": "三国志",
"author": "陈寿",
"word_count": 30000,
"publish_date": "1995-11-01"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "AWLOADU4QcKhhHA2xN61",
"_score": 0.34450945,
"_source": {
"title": "三国演绎",
"author": "罗贯中",
"word_count": 30000,
"publish_date": "1994-03-01"
}
}
]
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
# 聚合查询
类似于数据库中的分组查询，下面的例子演示按照书籍字数统计数据，按照发布时间统计数量。
POST http://localhost:9200/book/novel/_search
{
"aggs":{
"group_by_word_count":{
"terms":{
"field":"word_count"
}
},
"group_by_author":{
"terms":{
"field":"publish_date"
}
}
}
}
// 响应
{
"took": 4,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 5,
"max_score": 1,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "AWLOAAZzQcKhhHA2xN6z",
"_score": 1,
"_source": {
"title": "超级玛丽秘籍",
"author": "王五",
"word_count": 5000,
"publish_date": "1994-11-01"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "AWLOAEe5QcKhhHA2xN62",
"_score": 1,
"_source": {
"title": "玛丽与管道工",
"author": "陈寿",
"word_count": 10000,
"publish_date": "1994-03-01"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "AWLOAB8bQcKhhHA2xN60",
"_score": 1,
"_source": {
"title": "三国志",
"author": "陈寿",
"word_count": 30000,
"publish_date": "1995-11-01"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "AWLOADU4QcKhhHA2xN61",
"_score": 1,
"_source": {
"title": "三国演绎",
"author": "罗贯中",
"word_count": 30000,
"publish_date": "1994-03-01"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "AWLOAFiZQcKhhHA2xN63",
"_score": 1,
"_source": {
"title": "史记",
"author": "司马迁",
"word_count": 20000,
"publish_date": "1994-08-01"
}
}
]
},
"aggregations": {
"group_by_word_count": {
"doc_count_error_upper_bound": 0,
"sum_other_doc_count": 0,
"buckets": [
{
"key": 30000,
"doc_count": 2
},
{
"key": 5000,
"doc_count": 1
},
{
"key": 10000,
"doc_count": 1
},
{
"key": 20000,
"doc_count": 1
}
]
},
"group_by_author": {
"doc_count_error_upper_bound": 0,
"sum_other_doc_count": 0,
"buckets": [
{
"key": 762480000000,
"key_as_string": "1994-03-01 00:00:00",
"doc_count": 2
},
{
"key": 775699200000,
"key_as_string": "1994-08-01 00:00:00",
"doc_count": 1
},
{
"key": 783648000000,
"key_as_string": "1994-11-01 00:00:00",
"doc_count": 1
},
{
"key": 815184000000,
"key_as_string": "1995-11-01 00:00:00",
"doc_count": 1
}
]
}
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
# 统计查询
聚合查询也可以用于查询统计信息，下面的例子演示统计书籍字数信息，统计书籍字数最小的字数信息。
POST http://localhost:9200/book/novel/_search
{
"aggs":{
"grades_word_count":{
"stats":{
"field":"word_count"
}
},
"min_word_count":{
"min":{
"field":"word_count"
}
}
}
}
// 响应
{
"took": 44,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 5,
"max_score": 1,
"hits": [
{
"_index": "book",
"_type": "novel",
"_id": "AWLOAAZzQcKhhHA2xN6z",
"_score": 1,
"_source": {
"title": "超级玛丽秘籍",
"author": "王五",
"word_count": 5000,
"publish_date": "1994-11-01"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "AWLOAEe5QcKhhHA2xN62",
"_score": 1,
"_source": {
"title": "玛丽与管道工",
"author": "陈寿",
"word_count": 10000,
"publish_date": "1994-03-01"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "AWLOAB8bQcKhhHA2xN60",
"_score": 1,
"_source": {
"title": "三国志",
"author": "陈寿",
"word_count": 30000,
"publish_date": "1995-11-01"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "AWLOADU4QcKhhHA2xN61",
"_score": 1,
"_source": {
"title": "三国演绎",
"author": "罗贯中",
"word_count": 30000,
"publish_date": "1994-03-01"
}
},
{
"_index": "book",
"_type": "novel",
"_id": "AWLOAFiZQcKhhHA2xN63",
"_score": 1,
"_source": {
"title": "史记",
"author": "司马迁",
"word_count": 20000,
"publish_date": "1994-08-01"
}
}
]
},
"aggregations": {
"grades_word_count": {
"count": 5,
"min": 5000,
"max": 30000,
"avg": 19000,
"sum": 95000
},
"min_word_count": {
"value": 5000
}
}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
# 参考资料
Elasticsearch Reference (opens new window) Elasticsearch: 权威指南 (opens new window) (低版本)
文章作者： 程序猿阿朗
版权声明：本博客所有文章除特别声明外，均采用 CC BY-NC-SA 4.0
许可协议。转载请注明来自 未读代码！
在 GitHub 上编辑 (opens new window)
上次更新: 2021/12/08, 10:23:32
提示：评论前请刷新页面，否则评论的可能不是当前文章。