如何使用 Gradle Kotlin-DSL 添加本地资源

Question

我正在尝试使用 kotlin DSL 测试 gradle 5。

我创建了一个库，并将其构建如下：

Hasans-Air:blogiclib h_ajsf$ gradle init --type=kotlin-library

Starting a Gradle Daemon, 1 busy Daemon could not be reused, use --status for details

Select build script DSL:

1: groovy

2: kotlin

Enter selection (default: kotlin) [1..2] 2

Project name (default: blogiclib): 

Source package (default: blogiclib): 

**BUILD SUCCESSFUL** in 16s

2 actionable tasks: 2 executed

Hasans-Air:blogiclib h_ajsf$ ls

build.gradle.kts gradlew settings.gradle.kts

gradle gradlew.bat src

Hasans-Air:blogiclib h_ajsf$ code .

Hasans-Air:blogiclib h_ajsf$ gradle build

然后我得到了生成的输出文件： build\libs\blogiclib.jar

Library.kt生成的文件是：

package blogiclib

class Library {
    fun someLibraryMethod(): Boolean {
        return true
    }
}

而build.gradle.kts产生的：

plugins {
    id("org.jetbrains.kotlin.jvm").version("1.3.10")
}

repositories {
    jcenter()
}

dependencies {
    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
    testImplementation("org.jetbrains.kotlin:kotlin-test")
    testImplementation("org.jetbrains.kotlin:kotlin-test-junit")
}

然后我生成了一个 kotlin 应用程序并进行了如下测试：

Hasans-Air:gradle h_ajsf$ gradle init --type=kotlin-application

Starting a Gradle Daemon (subsequent builds will be faster)

Select build script DSL:

1: groovy

2: kotlin

Enter selection (default: kotlin) [1..2] 2

Project name (default: gradle): blogic

Source package (default: blogic): 

**BUILD SUCCESSFUL** in 25s

2 actionable tasks: 2 executed

Hasans-Air:gradle h_ajsf$ ls

build.gradle.kts gradlew settings.gradle.kts

gradle gradlew.bat src

Hasans-Air:gradle h_ajsf$ code .

Hasans-Air:gradle h_ajsf$ gradle run
**BUILD SUCCESSFUL** in 6m 4s

3 actionable tasks: 3 executed

Hasans-Air:gradle h_ajsf$ gradle run

**> Task :run**

Hello world.

然后我将之前生成的lib添加blogiclib.jar到文件夹中：main\resources

并将我的App.kt文件设为：

package blogic

import blogiclib.LibraryKt

class App {
    val greeting: String
        get() {
            return "Hello world."
        }
}

fun main(args: Array<String>) {
    println("${App().greeting} = someLibraryMethod()")
}

它build.gradle.kts基于我从这里的理解为：

plugins {
    id("org.jetbrains.kotlin.jvm").version("1.3.10")
    application
}

repositories {
    jcenter()
}

dependencies {
    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
    testImplementation("org.jetbrains.kotlin:kotlin-test")
    testImplementation("org.jetbrains.kotlin:kotlin-test-junit")

}

application {
    mainClassName = "blogic.AppKt"
}

task<JavaCompile>("compile") {
    source = fileTree(file("src/main/resources/blogiclib.jar"))
}

但是在编译时出现以下错误：

Hasans-Air:gradle h_ajsf$ gradle run

e: /Users/h_ajsf/Documents/gradle/src/main/kotlin/blogic/App.kt: (6, 8): Unresolved reference: blogiclib

**> Task :compileKotlin** FAILED

FAILURE: Build failed with an exception.

* What went wrong:

Execution failed for task ':compileKotlin'.

> Compilation error. See log for more details

* Try:

Run with **--stacktrace** option to get the stack trace. Run with **--info** or **--debug** option to get more log output. Run with **--scan** to get full insights.

* Get more help at **https://help.gradle.org**

Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.

Use '--warning-mode all' to show the individual deprecation warnings.

See https://docs.gradle.org/5.0/userguide/command_line_interface.html#sec:command_line_warnings

**BUILD FAILED** in 1s

2 actionable tasks: 2 executed

更新

根据收到的评论，我做了以下工作：

1. 将库文件移动到文件夹src/main/libs：

2. 将以下代码添加到build.gradle.kts：

   配置{创建（“externalLibs”）}

   依赖关系{“externalLibs”（文件（“src/main/libs/blogiclib.jar”））}

代替：

task<JavaCompile>("compile") {
    source = fileTree(file("src/main/resources/blogiclib.jar"))
}

但仍然得到同样的错误:(

Answer 1

您可以将所有 jar 文件包含在某些文件夹中，如下所示：

dependencies {
    implementation(fileTree("libs/compile"))
    compileOnly(fileTree("libs/provided"))
}

或者，选择特定文件：

repositories {
    flatDir {
        dirs("libs/compile")
        dirs("libs/provided")
    }
}

dependencies {
    implementation(":gson-2.8.5")
    compileOnly(":javaee-api-8.0")
}