使用Kotlin配置Gradle [英] Configuring Gradle with Kotlin

问题描述

我正在尝试使用kotlin和gradle，但我无法使用Intellij Idea 15成功创建项目。

I am trying to use kotlin with gradle, but I am unable to succesfully create a project with Intellij Idea 15.

我用两个模块创建了简单的项目 hello-java 和 hello-kotlin 。

I've create simple project with two modules hello-java and hello-kotlin.

hello-java 是普通的java项目，它正在编译并且运行得很好。

hello-java is plain java project and it is compiling and running perfectly fine.

hello-kotlin 是简单的kotin模块，只有一个* .kt文件和 build.gradle file。

以下是来源：

hello-kotlin is simple kotin module, with just one *.kt file and build.gradle file.
Here are the sources:

build.gradle

build.gradle

group 'pl.fzymek.kotlin'
version '1.0-SNAPSHOT'

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:0.10.4"
    }
}

apply plugin: 'kotlin'
apply plugin: 'application'

mainClassName = 'HelloKotlinKt'

repositories {
    mavenCentral()
}

jar {
    manifest {
        attributes 'Main-Class': mainClassName
    }
}

dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib:0.10.4"
}

HelloKotlin.kt

HelloKotlin.kt

fun main(args: Array<String>) {
    println("Hello, Kotlin!")
}

主模块settings.gradle

main module settings.gradle

include 'hello-java'
include 'hello-kotlin'

运行 gradlew clean build 所有项目都已成功编译，但在运行 java -jar时hello-kotlin-1.0-SNAPSHOT.jar 我收到以下错误：

When running gradlew clean build all projects are compiled successfully, but when running java -jar hello-kotlin-1.0-SNAPSHOT.jar I get following error:

Exception in thread "main" java.lang.NoClassDefFoundError: kotlin/jvm/internal/Intrinsics
        at HelloKotlinKt.main(HelloKotlin.kt)
Caused by: java.lang.ClassNotFoundException: kotlin.jvm.internal.Intrinsics
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        ... 1 more

更重要的是，Intellij似乎没有认识到ize src / main / kotlin 目录作为源目录（它没有标记为蓝色），编辑HelloKotlin.kt文件时无法使用自动完成功能。

What is more, Intellij seems not to recognize src/main/kotlin directory as source directory (it's not marked in blue) and I am not able to use auto-complete feature when editing HelloKotlin.kt file.

这是我在Intellij项目窗口中的项目结构

Here's my project structure in Intellij project window

我尝试使用Intellij选项配置Kotlin模块（工具 - > Kotlin->使用Kotlin配置项目），但是它给了我错误所有带有kotlin文件的模块都已配置

I've tried using Intellij option to configure modules with Kotlin(Tools->Kotlin->Configure project with Kotlin), but it gives me error that "All modules with kotlin files are configured"

帮助我stackoverflow，你是我唯一的帮助。

Help me stackoverflow, you are my only help.

推荐答案

运行gradlew clean build时，所有项目都编译成功，但运行java -jar时你好-kotlin-1.0-SNAPSHOT.jar我收到以下错误...

When running gradlew clean build all projects are compiled successfully, but when running java -jar hello-kotlin-1.0-SNAPSHOT.jar I get following error...

jar {
    manifest {
        attributes 'Main-Class': 'HelloKotlinKt'
    }

    from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
}

什么更多的是，Intellij似乎没有将src / main / kotlin目录识别为源目录（它没有标记为蓝色）......

What is more, Intellij seems not to recognize src/main/kotlin directory as source directory (it's not marked in blue)...

sourceSets {
    main.java.srcDirs += 'src/main/kotlin'
}

可以在这里找到文档和有用的资源和那里。

这篇关于使用Kotlin配置Gradle的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！