1 介绍
主要介绍索引请求的基础API操作，使用postman进行请求，接口请求的前缀地址统一为elasticsearch 部署IP地址+端口号（例如 http://192.168.51.4:9200 。
统一请求地址：
POST /search_demo/_doc/_search
2 term与match
2.1 term
term 是精确搜索，搜索的时候会将用户的搜索内容，比如"好的"作为一整个关键词去搜索，而不会对其进行分词后再搜索。
传递JSON数据
{
"query": {
"term": {
"desc": "好的"
}
},
"_source": [
"id",
"nickname",
"desc"
]
}
请求结果
{
"took": 10,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 2,
"relation": "eq"
},
"max_score": 1.8419956,
"hits": [
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1004",
"_score": 1.8419956,
"_source": {
"nickname": "红帽子",
"id": 1004,
"desc": "好的系统必须拥有稳定的系统结构"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1005",
"_score": 1.8419956,
"_source": {
"nickname": "switch游戏机",
"id": 1005,
"desc": "好的游戏，才会有人购买，比如塞尔达"
}
}
]
}
}
2.2 match基础
term 是非精确搜索，搜索的时候会将用户的搜索内容，比如"好的"作为一整个关键词去搜索，而不会对其进行分词后再搜索。
传递JSON数据
{
"query": {
"match": {
"desc": "好的"
}
},
"_source": [
"id",
"nickname",
"desc"
]
}
请求结果
{
"took": 85,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 9,
"relation": "eq"
},
"max_score": 3.1980762,
"hits": [
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1004",
"_score": 3.1980762,
"_source": {
"nickname": "红帽子",
"id": 1004,
"desc": "好的系统必须拥有稳定的系统结构"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1005",
"_score": 3.0979095,
"_source": {
"nickname": "switch游戏机",
"id": 1005,
"desc": "好的游戏，才会有人购买，比如塞尔达"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1003",
"_score": 0.37556386,
"_source": {
"nickname": "涡轮增压",
"id": 1003,
"desc": "极限的速度是需要涡轮增压的"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1012",
"_score": 0.36424035,
"_source": {
"nickname": "youzi",
"id": 1012,
"desc": "永远的神"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1002",
"_score": 0.35254776,
"_source": {
"nickname": "进击的巨人",
"id": 1002,
"desc": "艾伦是会变成真正的巨人的"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1011",
"_score": 0.27665582,
"_source": {
"nickname": "皮特",
"id": 1011,
"desc": "皮特的姓氏好像是彼得"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1007",
"_score": 0.2639615,
"_source": {
"nickname": "老男孩",
"id": 1007,
"desc": "确实是个很好的组合，筷子 筷子"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1009",
"_score": 0.252381,
"_source": {
"nickname": "露西",
"id": 1009,
"desc": "露西是一只很聪明的cat"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1001",
"_score": 0.18093815,
"_source": {
"nickname": "飞翔的荷兰号",
"id": 1001,
"desc": "我在p2pi网站解决项目中遇到的问题，学习到了很多知识"
}
}
]
}
}
使用
term查询好的命中记录2条使用
match查询好的命中记录9条
2.3 match扩展
operator
-
or：搜索内容分词后，只要存在一个词语匹配就展示结果
-
and：搜索分词后，要满足所有的词语匹配
{
"query": {
"match": {
"desc": "好的"
}
}
}
# 等同于下方
{
"query": {
"match": {
"desc": {
"query": "好的",
"operator": "and"
}
}
}
}
# 相当于 select * from search_demo where desc = 'aaa' or|and desc='bbb'
- minimum_should_match：最低匹配精度，至少有[分词后的词语个数] * 百分比，得出一个数据值取整。举个例子，当前属性设置为 70，如果一个用户查询检索内容分词后有10词语，那么匹配度按照 10 * 70% = 7，则desc中至少需要有7个词语匹配，就展示；若分词是8个，则8 * 70% = 5.6，则desc中至少有5个词语匹配，就展示
- minimum_should_match 也能设置具体的数字，表示个数
传递JSON数据
{
"query": {
"match": {
"desc": {
"query": "好的",
"minimum_should_match": "30%"
}
}
},
"_source": [
"id",
"nickname",
"desc"
]
}
请求结果
{
"took": 7,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 9,
"relation": "eq"
},
"max_score": 3.1980762,
"hits": [
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1004",
"_score": 3.1980762,
"_source": {
"nickname": "红帽子",
"id": 1004,
"desc": "好的系统必须拥有稳定的系统结构"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1005",
"_score": 3.0979095,
"_source": {
"nickname": "switch游戏机",
"id": 1005,
"desc": "好的游戏，才会有人购买，比如塞尔达"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1003",
"_score": 0.37556386,
"_source": {
"nickname": "涡轮增压",
"id": 1003,
"desc": "极限的速度是需要涡轮增压的"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1012",
"_score": 0.36424035,
"_source": {
"nickname": "youzi",
"id": 1012,
"desc": "永远的神"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1002",
"_score": 0.35254776,
"_source": {
"nickname": "进击的巨人",
"id": 1002,
"desc": "艾伦是会变成真正的巨人的"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1011",
"_score": 0.27665582,
"_source": {
"nickname": "皮特",
"id": 1011,
"desc": "皮特的姓氏好像是彼得"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1007",
"_score": 0.2639615,
"_source": {
"nickname": "老男孩",
"id": 1007,
"desc": "确实是个很好的组合，筷子 筷子"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1009",
"_score": 0.252381,
"_source": {
"nickname": "露西",
"id": 1009,
"desc": "露西是一只很聪明的cat"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1001",
"_score": 0.18093815,
"_source": {
"nickname": "飞翔的荷兰号",
"id": 1001,
"desc": "我在p2pi网站解决项目中遇到的问题，学习到了很多知识"
}
}
]
}
}
3 terms
terms 相当于tag标签查询比如有些数据因为业务需要，build被打上分类的标签，比如京东对商品，有零食、数码、衣服等等这样的标签，可以完全匹配做类似标签的查询。
{
"query": {
"terms": {
"desc": ["好","的"]
}
},
"_source": [
"id",
"nickname",
"desc"
]
}
4 match_phrase
match：分词后只要有匹配就返回
match_phrase：分词结果必须在text字段内容中都包含而且顺序必须相同，而且必须是连续的（搜索比较严格）
- slop：允许词语间跳过的数量
传递JSON数据
{
"query": {
"match_phrase": {
"desc": {
"query": "皮特 姓氏",
"slop": 1
}
}
},
"_source": [
"id",
"nickname",
"desc"
]
}
请求结果
{
"took": 14,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 1,
"relation": "eq"
},
"max_score": 4.7110896,
"hits": [
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1011",
"_score": 4.7110896,
"_source": {
"nickname": "皮特",
"id": 1011,
"desc": "皮特的姓氏好像是彼得"
}
}
]
}
}
5 ids
5.1 查询单个
GET /search_demo/_doc/1001
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1001",
"_version": 1,
"_seq_no": 0,
"_primary_term": 2,
"found": true,
"_source": {
"id": 1001,
"age": 18,
"username": "Tic",
"nickname": "飞翔的荷兰号",
"money": 88.8,
"desc": "我在p2pi网站解决项目中遇到的问题，学习到了很多知识",
"sex": 0,
"birthday": "1992-12-24",
"face": "http://www.p2pi.cn/static/img/1001_face.png"
}
}
5.2 查询多个
传递JSON数据
{
"query": {
"ids": {
"type": "_doc",
"values": ["1001","1005"]
}
},
"_source": [
"id",
"nickname",
"desc"
]
}
请求结果
{
"took": 9,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"skipped": 0,
"failed": 0
},
"hits": {
"total": {
"value": 2,
"relation": "eq"
},
"max_score": 1.0,
"hits": [
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1001",
"_score": 1.0,
"_source": {
"nickname": "飞翔的荷兰号",
"id": 1001,
"desc": "我在p2pi网站解决项目中遇到的问题，学习到了很多知识"
}
},
{
"_index": "search_demo",
"_type": "_doc",
"_id": "1005",
"_score": 1.0,
"_source": {
"nickname": "switch游戏机",
"id": 1005,
"desc": "好的游戏，才会有人购买，比如塞尔达"
}
}
]
}
}
6 相关信息
- 博文不易，辛苦各位猿友点个关注和赞，感谢