我是节点js + express中弹性搜索的新手,我很难在弹性搜索中获得建议。
下面我已经完成了对es建议的请求。
1)我创建了es index(name-“movies”)和type(“movie”)以及index的映射。
索引是:
return elasticClient.indices.create({
index:"movies",
body : {
"settings" : {
"index" : {
"number_of_shards" : 5,
"number_of_replicas" : 2
}
}
}
});
}
映射是:
createMovieMapping:function(){
return elasticClient.indices.putMapping({
index:"movies",
type:"movie",
body:{
properties:{
movieName : {type:"string"},
suggest:{
type:"completion",
analyzer:"simple",
search_analyzer:"simple",
payloads:true
}
}
}
})
}
2)将我的数据库中的一些数据推送到es索引类型为“movie”的“电影”。
在索引中添加数据的功能:
addDataToMovieEsIndex:function(document){
return elasticClient.index({
index:"movies",
type:"movie",
id:document._id, // for preventing duplicate insertion
body:{
movieName:document.movie_name,
suggest:{
input : document.movie_name.split(" "),
output : document.movie_name,
payload : document
}
}
})
}
3)现在我正在尝试使用以下创建的函数获得建议结果 -
getMovieSuggestion: function(input){
elasticClient.suggest({
index:"movies",
type:"movie",
body : {
moviesuggest:{
text: input,
completion:{
field : "suggest",
fuzzy : true
}
}
}
},function(err,resp){
if(resp){
console.log('response ',resp)
}
if(err){
console.log('error ',err);
}
})
}
但是我在获取获取电影结果建议的请求时遇到了错误。
{ Error: [illegal_argument_exception] request [/movies/_suggest] contains unrecognized parameter: [type]
at respond (/Users/siyaram.malav/malav/my_apps/movie-info-app/node_modules/elasticsearch/src/lib/transport.js:307:15)
at checkRespForFailure (/Users/siyaram.malav/malav/my_apps/movie-info-app/node_modules/elasticsearch/src/lib/transport.js:266:7)
at HttpConnector.<anonymous> (/Users/siyaram.malav/malav/my_apps/movie-info-app/node_modules/elasticsearch/src/lib/connectors/http.js:159:7)
at IncomingMessage.bound (/Users/siyaram.malav/malav/my_apps/movie-info-app/node_modules/lodash/dist/lodash.js:729:21)
at emitNone (events.js:91:20)
at IncomingMessage.emit (events.js:185:7)
at endReadableNT (_stream_readable.js:974:12)
at _combinedTickCallback (internal/process/next_tick.js:80:11)
at process._tickCallback (internal/process/next_tick.js:104:9)
status: 400,
displayName: 'BadRequest',
message: '[illegal_argument_exception] request [/movies/_suggest] contains unrecognized parameter: [type]',
path: '/movies/_suggest',
query: { type: 'movie' },
body: '{"moviesuggest":{"text":"Sultan","completion":{"field":"suggest","fuzzy":true}}}',
注意:我尝试从getMovieSuggestion函数中删除类型:“movie”,然后它会出现以下错误:
Error: [illegal_argument_exception] no mapping found for field [suggest]
任何帮助将不胜感激。 感谢。
答案 0 :(得分:1)
你不应该使用
import seaborn
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-1-085c0287ecb5> in <module>()
----> 1 import seaborn
ImportError: No module named seaborn
在对elasticClient.suggest的调用中。
应该是:
type:"movie"
此外,根据OP使用ES 5.5,ES JS API仍然使用_suggest端点,该端点已弃用。使用带有适当参数的_search端点的工作方式如注释中所示。