用于 Micronaut Kotlin 项目的 IntelliJ 中缺少 javax.inject 导入

Question

I wanted to get started with Micronaut using Kotlin in IntelliJ. I can setup this exmaple project from github . Running the project with gradle works just fine. Still IntelliJ will not let me import any annotation from javax.inject . The editor will always display import javax.inject.Singleton as compilation error (eg red font). Mouse over displays

Unresolved reference: Singleton

Browsing External Libraries in the project tree shows a dependency javax.inject:javax.inject:1 that should contain said annotations but it is displayed as empty folder.

Since IntelliJ is using gradle for building the build works without compilation error. As mentioned in the docs: annotation processing is enabled in IntelliJ.

Am I missing something or is this broken in IntelliJ (Build #IU-202.6397.94, built on July 27, 2020, Kotlin plugin 1.4.0)

Answer 1

Micronaut 3 M2 Released

This should answer your question. Adding this below to dependencies should help if you prefer using javax

implementation("javax.inject:javax.inject:1")

Answer 2

Since Micronaut 3.0, micronaut Gradle plugin adds new jakarta.inejct artifact automatically. No need add it explicitly.

Try to build the project by command line( ./gradlew build ) in Intellij IDEA terminal windows, then refresh the project in the Gradle pane.

Check my example to demo Kotlin and Kotlin Coroutines .