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어제부터 Scala를 배우면서 MongoDB 인덱스 (작동)와 상호 작용하는 프로젝트를 만들고 다른 프로젝트에서 ScalaJS를 사용하여 동일한 작업을 수행했습니다.ScalaJS 및 MongoDB 드라이버 : 존재하지 않는 클래스 참조
enablePlugins(ScalaJSPlugin)
name := "demographics"
version := "1.0"
scalaVersion := "2.12.1"
libraryDependencies += "org.mongodb.scala" %% "mongo-scala-driver" % "1.2.1"
libraryDependencies += "be.doeraene" %%% "scalajs-jquery" % "0.9.1"
libraryDependencies += "org.scala-js" %%% "scalajs-dom" % "0.9.1"
skip in packageJSDependencies := false
jsDependencies +=
"org.webjars" % "jquery" % "3.1.1"/"3.1.1/jquery.js"
내 주요 파일 :
package demographics.webapp
import org.mongodb.scala._
import scala.scalajs.js.JSApp
object DemographicsApp extends JSApp {
def main(): Unit = {
// connect to the bdd
val mongoClient: MongoClient = MongoClient()
val database: MongoDatabase = mongoClient.getDatabase("demographics")
val collection: MongoCollection[Document] = database.getCollection("demographics")
}
}
아주 기본이 : 그냥 컬렉션에 연결
여기 내 build.sbt입니다. 나는 SBT 쉘에 "fastOptJS"를 시작할 때
슬프게도, 다음과 같은 오류 메시지가 나타납니다
[info] Compiling 1 Scala source to C:\...\target\scala-2.12\classes...
[info] Fast optimizing C:\...\target\scala-2.12\untitled1-fastopt.js
[error] Referring to non-existent class org.mongodb.scala.bson.DefaultHelper$DefaultsTo$
[error] called from demographics.webapp.DemographicsApp$.main()scala.Unit
[error] called from scala.scalajs.js.JSApp.$$js$exported$meth$main()java.lang.Object
[error] called from demographics.webapp.PrenomApp$.$$js$exported$meth$main()java.lang.Object
[error] called from demographics.webapp.DemographicsApp$.main
[error] exported to JavaScript with @JSExport
[error] involving instantiated classes:
[error] demographics.webapp.PrenomApp$
[error] Referring to non-existent class org.mongodb.scala.MongoClient$
[error] called from demographics.webapp.DemographicsApp$.main()scala.Unit
[error] called from scala.scalajs.js.JSApp.$$js$exported$meth$main()java.lang.Object
[error] called from demographics.webapp.PrenomApp$.$$js$exported$meth$main()java.lang.Object
[error] called from demographics.webapp.DemographicsApp$.main
[error] exported to JavaScript with @JSExport
[error] involving instantiated classes:
[error] demographics.webapp.DemographicsApp$
[error] Referring to non-existent class org.mongodb.scala.bson.collection.immutable.Document
[error] called from demographics.webapp.DemographicsApp$.main()scala.Unit
[error] called from scala.scalajs.js.JSApp.$$js$exported$meth$main()java.lang.Object
[error] called from demographics.webapp.PrenomApp$.$$js$exported$meth$main()java.lang.Object
[error] called from demographics.webapp.DemographicsApp$.main
[error] exported to JavaScript with @JSExport
[error] involving instantiated classes:
[error] demographics.webapp.DemographicsApp$
[error] Referring to non-existent method org.mongodb.scala.bson.DefaultHelper$DefaultsTo$.$default()org.mongodb.scala.bson.DefaultHelper$DefaultsTo
[error] called from demographics.webapp.DemographicsApp$.main()scala.Unit
[error] called from scala.scalajs.js.JSApp.$$js$exported$meth$main()java.lang.Object
[error] called from demographics.webapp.PrenomApp$.$$js$exported$meth$main()java.lang.Object
[error] called from demographics.webapp.DemographicsApp$.main
[error] exported to JavaScript with @JSExport
[error] involving instantiated classes:
[error] demographics.webapp.DemographicsApp$
[error] Referring to non-existent method org.mongodb.scala.MongoClient$.apply()org.mongodb.scala.MongoClient
[error] called from demographics.webapp.DemographicsApp$.main()scala.Unit
[error] called from scala.scalajs.js.JSApp.$$js$exported$meth$main()java.lang.Object
[error] called from demographics.webapp.PrenomApp$.$$js$exported$meth$main()java.lang.Object
[error] called from demographics.webapp.DemographicsApp$.main
[error] exported to JavaScript with @JSExport
[error] involving instantiated classes:
[error] demographics.webapp.DemographicsApp$
[trace] Stack trace suppressed: run last compile:fastOptJS for the full output.
[error] (compile:fastOptJS) There were linking errors
(주 파일의 적응과) 동일한 코드를 바닐라 스칼라 프로젝트, 왜에 노력하고 있습니다 이 오류가 나타 납니까?