Dropwizard+Gradle fatJar用于带有子项目的项目拉入gradle-api-5.4.1.jar deps

Question

我有一个Gradle项目，作为一个简单的示例，它看起来类似于以下内容：

root
|
|build.gradle.kts
|settings.gradle.kts
|config.yaml
|web/
    |build.gradle.kts
    |src/
        |main/
             |java....(etc)

web项目是一个纯粹的Dropwizard应用程序，它只做声明一个配置和一个使用它的应用程序，以便服务器能够启动。

在我的root路径中，我已经在settings.gradle.kts文件中定义了我的子项目（在本例中为:web)。在我的rootbuild.gradle.kts中，我声明了一个实现（project（“：web”）)依赖项。

我有一个run任务和一个fatjar任务来运行/构建这个应用程序。

val run by tasks.getting(JavaExec::class) {
    args("server", "config.yaml")
}

val fatJar = task("fatJar", type = Jar::class) {
    manifest {
        attributes["Implementation-Title"] = "Some API"
        attributes["Main-Class"] = "my.package.web.HelloWorldApplication"
    }
    from(configurations.runtimeClasspath.get().map({ if (it.isDirectory) it else zipTree(it) }))
    with(tasks.jar.get() as CopySpec)
}

tasks {
    "build" {
        dependsOn(fatJar)
    }
}

我可以构建fatJar，它包含了我所期望的所有类（根的依赖项、web的依赖项、它们的传递依赖项，等等）。

但是，当我运行./gradlew run时，由于在类路径上发现多个日志绑定，启动Dropwizard应用程序时出错。下面是错误：

./gradlew run
Starting a Gradle Daemon, 1 busy and 1 incompatible and 3 stopped Daemons could not be reused, use --status for details

> Task :run
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/Users/me/.gradle/caches/5.4.1/generated-gradle-jars/gradle-api-5.4.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/Users/me/.gradle/caches/modules-2/files-2.1/ch.qos.logback/logback-classic/1.2.3/7c4f3c474fb2c041d8028740440937705ebb473a/logback-classic-1.2.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.gradle.internal.logging.slf4j.OutputEventListenerBackedLoggerContext]
Exception in thread "main" java.lang.IllegalStateException: Unable to acquire the logger context
        at io.dropwizard.logging.LoggingUtil.getLoggerContext(LoggingUtil.java:46)
        at io.dropwizard.logging.BootstrapLogging.bootstrap(BootstrapLogging.java:52)
        at io.dropwizard.logging.BootstrapLogging.bootstrap(BootstrapLogging.java:41)
        at io.dropwizard.Application.bootstrapLogging(Application.java:38)
        at io.dropwizard.Application.<init>(Application.java:26)
        at my.package.web.HelloWorldApplication.<init>(HelloWorldApplication.java:15)
        at my.package.web.HelloWorldApplication.main(HelloWorldApplication.java:17)

> Task :run FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':run'.
> Process 'command '/Library/Java/JavaVirtualMachines/jdk-12.0.1.jdk/Contents/Home/bin/java'' finished with non-zero exit value 1

* 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

BUILD FAILED in 25s
13 actionable tasks: 1 executed, 12 up-to-date

我知道我可以从Dropwizard中删除logback，但我更想弄清楚为什么gradle-api-5.4.1.jar被绑定到我的应用程序中。我一辈子都弄不明白，也不明白为什么它会被拉进来。

任何指示都将不胜感激。

谢谢

Answer 1

因此，我在问这个问题和我正在做的事情时犯的错误是，我没有提到或意识到我在意外事件的根脚本中应用了kotlin-dsl插件。一旦我移除这个，一切都如我所愿。