使用Gradle在Kotlin服务器和客户端项目之间共享代码

我想使用一个单独的

shared

项目在服务器（JVM）和客户端（JS）之间共享一些代码。我见过一个使用Maven的项目，但我不知道如何将其转换为Gradle项目。此外，在本文档中没有任何共享项目的示例。那么，一个最小的

build.gradle

如何使用这样的设置呢？

构建一个依赖于另一个Kotlin项目的Kotlin2JS项目似乎需要以任何方式复制源代码。一种方法是将Kotlin项目源dirs添加到Kotlin2JS项目源集dirs

这可以通过

项目

范围中的以下行完成：

sourceSets {  
    main.kotlin.srcDirs += project(':shared').sourceSets.main.kotlin.srcDirs
}

请参见整个项目结构：

root/
  shared/
    src/main/kotlin
    build.gradle
  client/
    src/main/kotlin
  server/
    src/main/kotlin
  build.gradle
  settings.gradle

在

设置.gradle

中：

include 'shared', 'server', 'client'

group 'com.example.multiproject'
version '1.0-SNAPSHOT'

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.0.0-beta-4589"
    }
}

subprojects {
    repositories {
        mavenCentral()
    }
}

project(':client') {
    evaluationDependsOn(':shared')

    apply plugin: 'kotlin2js'
    compileKotlin2Js.kotlinOptions.sourceMap = true
    compileKotlin2Js.kotlinOptions.outputFile = "${projectDir}/web/js/app.js"
    compileKotlin2Js.kotlinOptions.suppressWarnings = true
    compileKotlin2Js.kotlinOptions.verbose = true

    sourceSets {
        main.kotlin.srcDirs += project(':shared').sourceSets.main.kotlin.srcDirs
    }
    dependencies {
        compile 'org.jetbrains.kotlin:kotlin-js-library:1.0.0-beta-4589'
    }
}

project(':server') {
    apply plugin: 'kotlin'
    dependencies {
        compile 'org.jetbrains.kotlin:kotlin-stdlib:1.0.0-beta-4589'
        compile project(':shared')
    }
}

buildscript {
  ext {
    kotlinVer = '1.0.0-beta-4589'
  }
  repositories {
    mavenCentral()
    maven {
      url 'http://oss.sonatype.org/content/repositories/snapshots'
    }
  }
  dependencies {
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVer"
  }
}

allprojects {
  apply plugin: 'idea'
  group = 'some.company'
  version = '0.0.1'

  ext {
    kotlinVer = '1.0.0-beta-4589'
    // Lib versions go there.
  }
  repositories {
    mavenLocal()
    mavenCentral()
    maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
    maven { url "https://oss.sonatype.org/content/repositories/releases/" }
  }
}

project('shared') {
  apply plugin: 'kotlin'
}

project('server') {
  apply plugin: 'kotlin'
  apply plugin: 'application'

  mainClassName = 'some.company.Main'
  dependencies {
    compile project(':shared')
  }
}

project('client') {
  apply plugin: 'kotlin2js'
  dependencies {
    compile project(':shared')
  }
}

apply plugin: 'kotlin2js'

compileKotlin2Js {
  kotlinOptions.outputFile = "server/src/main/resources/static/js/app.js"
  kotlinOptions.sourceMap = true
}

sourceSets {
  main.kotlin.srcDirs += '../shared/src/main/kotlin'
  // hotkey's solution:
  // main.kotlin.srcDirs += project(':shared').sourceSets.main.kotlin.srcDirs
}

dependencies {
  compile "org.jetbrains.kotlin:kotlin-js-library:$kotlinVer"
}

apply plugin: 'kotlin'

sourceCompatibility = 1.7
targetCompatibility = 1.7

dependencies {
  // Libs go there.
  compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlinVer"
  testCompile "org.jetbrains.kotlin:kotlin-test-junit:$kotlinVer"
}

在

build.gradle

中：

include 'shared', 'server', 'client'

group 'com.example.multiproject'
version '1.0-SNAPSHOT'

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.0.0-beta-4589"
    }
}

subprojects {
    repositories {
        mavenCentral()
    }
}

project(':client') {
    evaluationDependsOn(':shared')

    apply plugin: 'kotlin2js'
    compileKotlin2Js.kotlinOptions.sourceMap = true
    compileKotlin2Js.kotlinOptions.outputFile = "${projectDir}/web/js/app.js"
    compileKotlin2Js.kotlinOptions.suppressWarnings = true
    compileKotlin2Js.kotlinOptions.verbose = true

    sourceSets {
        main.kotlin.srcDirs += project(':shared').sourceSets.main.kotlin.srcDirs
    }
    dependencies {
        compile 'org.jetbrains.kotlin:kotlin-js-library:1.0.0-beta-4589'
    }
}

project(':server') {
    apply plugin: 'kotlin'
    dependencies {
        compile 'org.jetbrains.kotlin:kotlin-stdlib:1.0.0-beta-4589'
        compile project(':shared')
    }
}

buildscript {
  ext {
    kotlinVer = '1.0.0-beta-4589'
  }
  repositories {
    mavenCentral()
    maven {
      url 'http://oss.sonatype.org/content/repositories/snapshots'
    }
  }
  dependencies {
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVer"
  }
}

allprojects {
  apply plugin: 'idea'
  group = 'some.company'
  version = '0.0.1'

  ext {
    kotlinVer = '1.0.0-beta-4589'
    // Lib versions go there.
  }
  repositories {
    mavenLocal()
    mavenCentral()
    maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
    maven { url "https://oss.sonatype.org/content/repositories/releases/" }
  }
}

project('shared') {
  apply plugin: 'kotlin'
}

project('server') {
  apply plugin: 'kotlin'
  apply plugin: 'application'

  mainClassName = 'some.company.Main'
  dependencies {
    compile project(':shared')
  }
}

project('client') {
  apply plugin: 'kotlin2js'
  dependencies {
    compile project(':shared')
  }
}

apply plugin: 'kotlin2js'

compileKotlin2Js {
  kotlinOptions.outputFile = "server/src/main/resources/static/js/app.js"
  kotlinOptions.sourceMap = true
}

sourceSets {
  main.kotlin.srcDirs += '../shared/src/main/kotlin'
  // hotkey's solution:
  // main.kotlin.srcDirs += project(':shared').sourceSets.main.kotlin.srcDirs
}

dependencies {
  compile "org.jetbrains.kotlin:kotlin-js-library:$kotlinVer"
}

apply plugin: 'kotlin'

sourceCompatibility = 1.7
targetCompatibility = 1.7

dependencies {
  // Libs go there.
  compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlinVer"
  testCompile "org.jetbrains.kotlin:kotlin-test-junit:$kotlinVer"
}

---

请注意，

shared

项目应该包含自己的

build.gradle

为了完整性，这是我几乎与热键同时创建的设置：

主

设置。渐变
：
包括“共享”、“客户端”、“服务器”

Main
build.gradle
：

include 'shared', 'server', 'client'

group 'com.example.multiproject'
version '1.0-SNAPSHOT'

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.0.0-beta-4589"
    }
}

subprojects {
    repositories {
        mavenCentral()
    }
}

project(':client') {
    evaluationDependsOn(':shared')

    apply plugin: 'kotlin2js'
    compileKotlin2Js.kotlinOptions.sourceMap = true
    compileKotlin2Js.kotlinOptions.outputFile = "${projectDir}/web/js/app.js"
    compileKotlin2Js.kotlinOptions.suppressWarnings = true
    compileKotlin2Js.kotlinOptions.verbose = true

    sourceSets {
        main.kotlin.srcDirs += project(':shared').sourceSets.main.kotlin.srcDirs
    }
    dependencies {
        compile 'org.jetbrains.kotlin:kotlin-js-library:1.0.0-beta-4589'
    }
}

project(':server') {
    apply plugin: 'kotlin'
    dependencies {
        compile 'org.jetbrains.kotlin:kotlin-stdlib:1.0.0-beta-4589'
        compile project(':shared')
    }
}

buildscript {
  ext {
    kotlinVer = '1.0.0-beta-4589'
  }
  repositories {
    mavenCentral()
    maven {
      url 'http://oss.sonatype.org/content/repositories/snapshots'
    }
  }
  dependencies {
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVer"
  }
}

allprojects {
  apply plugin: 'idea'
  group = 'some.company'
  version = '0.0.1'

  ext {
    kotlinVer = '1.0.0-beta-4589'
    // Lib versions go there.
  }
  repositories {
    mavenLocal()
    mavenCentral()
    maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
    maven { url "https://oss.sonatype.org/content/repositories/releases/" }
  }
}

project('shared') {
  apply plugin: 'kotlin'
}

project('server') {
  apply plugin: 'kotlin'
  apply plugin: 'application'

  mainClassName = 'some.company.Main'
  dependencies {
    compile project(':shared')
  }
}

project('client') {
  apply plugin: 'kotlin2js'
  dependencies {
    compile project(':shared')
  }
}

apply plugin: 'kotlin2js'

compileKotlin2Js {
  kotlinOptions.outputFile = "server/src/main/resources/static/js/app.js"
  kotlinOptions.sourceMap = true
}

sourceSets {
  main.kotlin.srcDirs += '../shared/src/main/kotlin'
  // hotkey's solution:
  // main.kotlin.srcDirs += project(':shared').sourceSets.main.kotlin.srcDirs
}

dependencies {
  compile "org.jetbrains.kotlin:kotlin-js-library:$kotlinVer"
}

apply plugin: 'kotlin'

sourceCompatibility = 1.7
targetCompatibility = 1.7

dependencies {
  // Libs go there.
  compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlinVer"
  testCompile "org.jetbrains.kotlin:kotlin-test-junit:$kotlinVer"
}

客户端
build.gradle
：

include 'shared', 'server', 'client'

group 'com.example.multiproject'
version '1.0-SNAPSHOT'

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.0.0-beta-4589"
    }
}

subprojects {
    repositories {
        mavenCentral()
    }
}

project(':client') {
    evaluationDependsOn(':shared')

    apply plugin: 'kotlin2js'
    compileKotlin2Js.kotlinOptions.sourceMap = true
    compileKotlin2Js.kotlinOptions.outputFile = "${projectDir}/web/js/app.js"
    compileKotlin2Js.kotlinOptions.suppressWarnings = true
    compileKotlin2Js.kotlinOptions.verbose = true

    sourceSets {
        main.kotlin.srcDirs += project(':shared').sourceSets.main.kotlin.srcDirs
    }
    dependencies {
        compile 'org.jetbrains.kotlin:kotlin-js-library:1.0.0-beta-4589'
    }
}

project(':server') {
    apply plugin: 'kotlin'
    dependencies {
        compile 'org.jetbrains.kotlin:kotlin-stdlib:1.0.0-beta-4589'
        compile project(':shared')
    }
}

buildscript {
  ext {
    kotlinVer = '1.0.0-beta-4589'
  }
  repositories {
    mavenCentral()
    maven {
      url 'http://oss.sonatype.org/content/repositories/snapshots'
    }
  }
  dependencies {
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVer"
  }
}

allprojects {
  apply plugin: 'idea'
  group = 'some.company'
  version = '0.0.1'

  ext {
    kotlinVer = '1.0.0-beta-4589'
    // Lib versions go there.
  }
  repositories {
    mavenLocal()
    mavenCentral()
    maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
    maven { url "https://oss.sonatype.org/content/repositories/releases/" }
  }
}

project('shared') {
  apply plugin: 'kotlin'
}

project('server') {
  apply plugin: 'kotlin'
  apply plugin: 'application'

  mainClassName = 'some.company.Main'
  dependencies {
    compile project(':shared')
  }
}

project('client') {
  apply plugin: 'kotlin2js'
  dependencies {
    compile project(':shared')
  }
}

apply plugin: 'kotlin2js'

compileKotlin2Js {
  kotlinOptions.outputFile = "server/src/main/resources/static/js/app.js"
  kotlinOptions.sourceMap = true
}

sourceSets {
  main.kotlin.srcDirs += '../shared/src/main/kotlin'
  // hotkey's solution:
  // main.kotlin.srcDirs += project(':shared').sourceSets.main.kotlin.srcDirs
}

dependencies {
  compile "org.jetbrains.kotlin:kotlin-js-library:$kotlinVer"
}

apply plugin: 'kotlin'

sourceCompatibility = 1.7
targetCompatibility = 1.7

dependencies {
  // Libs go there.
  compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlinVer"
  testCompile "org.jetbrains.kotlin:kotlin-test-junit:$kotlinVer"
}

服务器
build.gradle
：

include 'shared', 'server', 'client'

group 'com.example.multiproject'
version '1.0-SNAPSHOT'

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.0.0-beta-4589"
    }
}

subprojects {
    repositories {
        mavenCentral()
    }
}

project(':client') {
    evaluationDependsOn(':shared')

    apply plugin: 'kotlin2js'
    compileKotlin2Js.kotlinOptions.sourceMap = true
    compileKotlin2Js.kotlinOptions.outputFile = "${projectDir}/web/js/app.js"
    compileKotlin2Js.kotlinOptions.suppressWarnings = true
    compileKotlin2Js.kotlinOptions.verbose = true

    sourceSets {
        main.kotlin.srcDirs += project(':shared').sourceSets.main.kotlin.srcDirs
    }
    dependencies {
        compile 'org.jetbrains.kotlin:kotlin-js-library:1.0.0-beta-4589'
    }
}

project(':server') {
    apply plugin: 'kotlin'
    dependencies {
        compile 'org.jetbrains.kotlin:kotlin-stdlib:1.0.0-beta-4589'
        compile project(':shared')
    }
}

buildscript {
  ext {
    kotlinVer = '1.0.0-beta-4589'
  }
  repositories {
    mavenCentral()
    maven {
      url 'http://oss.sonatype.org/content/repositories/snapshots'
    }
  }
  dependencies {
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVer"
  }
}

allprojects {
  apply plugin: 'idea'
  group = 'some.company'
  version = '0.0.1'

  ext {
    kotlinVer = '1.0.0-beta-4589'
    // Lib versions go there.
  }
  repositories {
    mavenLocal()
    mavenCentral()
    maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
    maven { url "https://oss.sonatype.org/content/repositories/releases/" }
  }
}

project('shared') {
  apply plugin: 'kotlin'
}

project('server') {
  apply plugin: 'kotlin'
  apply plugin: 'application'

  mainClassName = 'some.company.Main'
  dependencies {
    compile project(':shared')
  }
}

project('client') {
  apply plugin: 'kotlin2js'
  dependencies {
    compile project(':shared')
  }
}

apply plugin: 'kotlin2js'

compileKotlin2Js {
  kotlinOptions.outputFile = "server/src/main/resources/static/js/app.js"
  kotlinOptions.sourceMap = true
}

sourceSets {
  main.kotlin.srcDirs += '../shared/src/main/kotlin'
  // hotkey's solution:
  // main.kotlin.srcDirs += project(':shared').sourceSets.main.kotlin.srcDirs
}

dependencies {
  compile "org.jetbrains.kotlin:kotlin-js-library:$kotlinVer"
}

apply plugin: 'kotlin'

sourceCompatibility = 1.7
targetCompatibility = 1.7

dependencies {
  // Libs go there.
  compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlinVer"
  testCompile "org.jetbrains.kotlin:kotlin-test-junit:$kotlinVer"
}

共享项目的
build.gradle
只包含
apply插件：“kotlin”
，而且，我不确定使用共享库是否简单（或者在许多情况下是必要的），所以我猜它甚至可能保持为空

gradleclient:build
在服务器的静态资源文件夹中生成JavaScript文件
gradle idea
生成具有正确链接的依赖项和源文件夹的IntelliJ项目（只要使用默认名称-
src/main/kotlin
等；有关自定义源目录，请参阅官方kotlin gradle手册）。
您尝试过使用此设置吗？我已经知道如何创建多项目设置，但问题是——服务器和客户端似乎都依赖于不同的插件和库。如果我是正确的，Kotlin客户端项目应该使用
kotlin2js
插件和
Kotlin js库
，而不是
Kotlin
插件和
Kotlin stdlib
。我目前正在尝试多项目方法，但是：A）当使用
idea
插件时，IntelliJ看不到源文件夹，因此有很多手动设置；B）如果导入为Gradle项目，则外部依赖项不会链接。当我完全陷入困境时，我会上传我的脚本。@JustACluelessNewbie，我同意，我错过了JS时刻。你能为我提供一个构建脚本的kotlin2js插件依赖项吗？我认为它将类似于我所写的，只是在不同的项目中使用不同的插件，而不是在
子项目中使用一个插件，我已经更新了答案。这个构建脚本是在我这边配置的，看起来是正确的，但我不知道如何检查
client
构建是否正确。请检查项目中的当前版本。然而，
client
和
server
都可以使用
shared
中的类。如果你想让客户端真正看到共享的源代码，JS插件是不够的，这是我开始的
gradle客户端：生成
无法使用共享项目中的类编译客户端代码。而且，我认为，
kotlin stdlib
只是JVM。在JS编译之前，我一直在努力完成一项附加共享源代码目录的任务，但我认为解决方案可以简单得多。我问这个问题是想看看是否有人已经找到了一个有效的解决方案——我不是一个完全的Gradle初学者。@JustACluelessNewbie，好吧，我试过并得到了同样的答案，所以现在删除这个答案。请注意，这是一个非常老的问题，虽然答案可能仍然适用，但今天你应该研究一下。