es语法 rest api 模拟根据歌手，歌名，歌词来搜索demo

#创建索引
songs_v1 PUT
{ -
"acknowledged": true,
"shards_acknowledged": true,
"index": "songs_v1"
}

#创建映射 高版本的没有type，可以使用默认的_doc,避免不同的type之间存在相同的字段名，但是字段类型不同的问题。
{ -
"error": "no handler found for uri [/songs_v1/mapping/popular] and method [PUT]"
}

_doc
{ -
"error": { -
"root_cause": [ -
{ -
"type": "illegal_argument_exception",
"reason": "Types cannot be provided in put mapping requests"
}
],
"type": "illegal_argument_exception",
"reason": "Types cannot be provided in put mapping requests"
},
"status": 400
}

songs_v1/_mapping/ PUT
songs_v2/_mappings PUT 也成功
{
"properties":{
"songName":{"type":"text"},
"singer":{"type":"text"},
"lyrics":{"type":"text"}
}
}
返回
{ -
"acknowledged": true
}

浏览器上面访问
http://IP:9200/songs_v1/_settings?pretty
http://IP:9200/songs_v1/_mappings?pretty

红色框的{}需要去掉。

索引数据
songs_v2/_doc POST
{
"songName":"tianyi",
"singer":"liudehua",
"lyrics":"shui zai hu wo de xin li you duo ku"
}
返回
{ -
"_index": "songs_v2",
"_id": "40nNMYEBLnSF9_D_lR0_",
"_version": 1,
"result": "created",
"_shards": { -
"total": 2,
"successful": 1,
"failed": 0
},
"_seq_no": 0,
"_primary_term": 1
}

查询，根据歌手查询
songs_v2/_search?q=singer:liudehua GET
根据歌词查询
songs_v2/_search?q=lyrics:duo GET
根据歌名来查询
songs_v2/_search?q=songName:wangqingshui

文本匹配不到问题
因ES分词处理导致匹配不到
不需要做模糊查询的字段，使用keyword代替text，避免创建索引的时候对这些词进行分词。

查询全部
songs_v2/_search
{
"query": {
"match_all": {
"boost": 1
}
}
}
根据歌名查询
songs_v2/_search
{
"from": 0,
"size": 5,
"timeout": "60s",
"query": {
"term": {
"songName": {
"value": "tianyi",
"boost": 1
}
}
}
}