带有java库的Gradle平台依赖项

我们有两个公共库，它们使用java库Gradle插件，并通过平台依赖于Micronaut的BOM来依赖Micronaut。两个项目都使用Gradle 6.6.1，这是撰写本文时的最新版本

库

build.gradle

plugins {
    id "java-library"
}

repositories {
    mavenLocal()
    mavenCentral()
}

dependencies {

    annotationProcessor (
        platform("io.micronaut:micronaut-bom:$micronautVersion"),
        "io.micronaut:micronaut-inject-java"
    )

    implementation(
        platform("io.micronaut:micronaut-bom:$micronautVersion"),
        "io.micronaut:micronaut-inject"
    )

    testAnnotationProcessor(
        enforcedPlatform("io.micronaut:micronaut-bom:$micronautVersion"),
        "io.micronaut:micronaut-inject-java"
    )

    testImplementation(
        enforcedPlatform("io.micronaut:micronaut-bom:$micronautVersion"),
        "io.micronaut:micronaut-runtime",
        "io.micronaut:micronaut-http-server-netty",
        "io.micronaut:micronaut-http-client"
    )
}

plugins {
    id "application"
    id "java"
}

repositories {
    mavenLocal()
    mavenCentral()
}

dependencies {
    implementation(
        "my.group:library:${libraryVersion}",
    
        platform("io.micronaut:micronaut-bom:${micronautVersion}"),
        "io.micronaut:micronaut-http-client",
        "io.micronaut:micronaut-http-server-netty",
        "io.micronaut:micronaut-inject",
        "io.micronaut:micronaut-management",
        "io.micronaut:micronaut-runtime",
        "io.micronaut:micronaut-validation"
    )
}

当我尝试在应用程序中使用我的库时，它使用应用程序Gradle插件，并且对Micronaut的BOM表具有平台依赖性，我收到一个错误，说它无法解析库使用的Micronaut BOM表。但它永远无法解决这种依赖关系，因为它是一个BOM表，而不是一个库

应用程序

build.gradle

plugins {
    id "java-library"
}

repositories {
    mavenLocal()
    mavenCentral()
}

dependencies {

    annotationProcessor (
        platform("io.micronaut:micronaut-bom:$micronautVersion"),
        "io.micronaut:micronaut-inject-java"
    )

    implementation(
        platform("io.micronaut:micronaut-bom:$micronautVersion"),
        "io.micronaut:micronaut-inject"
    )

    testAnnotationProcessor(
        enforcedPlatform("io.micronaut:micronaut-bom:$micronautVersion"),
        "io.micronaut:micronaut-inject-java"
    )

    testImplementation(
        enforcedPlatform("io.micronaut:micronaut-bom:$micronautVersion"),
        "io.micronaut:micronaut-runtime",
        "io.micronaut:micronaut-http-server-netty",
        "io.micronaut:micronaut-http-client"
    )
}

plugins {
    id "application"
    id "java"
}

repositories {
    mavenLocal()
    mavenCentral()
}

dependencies {
    implementation(
        "my.group:library:${libraryVersion}",
    
        platform("io.micronaut:micronaut-bom:${micronautVersion}"),
        "io.micronaut:micronaut-http-client",
        "io.micronaut:micronaut-http-server-netty",
        "io.micronaut:micronaut-inject",
        "io.micronaut:micronaut-management",
        "io.micronaut:micronaut-runtime",
        "io.micronaut:micronaut-validation"
    )
}

然后我得到以下错误

Caused by: org.gradle.internal.resolve.ModuleVersionResolveException: Could not resolve io.micronaut:micronaut-bom:2.0.1.
Required by:
    project : > my.group:library:11.0.0-SNAPSHOT
Caused by: org.gradle.internal.component.NoMatchingConfigurationSelectionException: No matching variant of io.micronaut:micronaut-bom:2.0.1 was found. The consumer was configured to find a runtime of a library compatible with Java 14, packaged as a jar, and its dependencies declared externally but:
  - Variant 'apiElements' capability io.micronaut:micronaut-bom:2.0.1:
      - Incompatible because this component declares an API of a platform and the consumer needed a runtime of a library
      - Other compatible attributes:
          - Doesn't say anything about how its dependencies are found (required its dependencies declared externally)
          - Doesn't say anything about its target Java version (required compatibility with Java 14)
          - Doesn't say anything about its elements (required them packaged as a jar)

---

我试图阅读Gradle文档中关于变体选择的内容，但这对我来说真的没有多大意义。有人知道我需要如何声明依赖项才能实现这一点吗？这似乎是一件非常琐碎的事情，但我没有发现任何关于这方面的东西…

看看`实现（enforcedPlatform（“io.micronaut:micronaut bom:$micronautVersion”））是否在主项目中起作用。我尝试了

enforcedPlatform

，但这似乎没有任何区别。我认为它只是允许您覆盖BOM提供的库的一个版本。@npskirk您能解决这个问题吗？我最终解决了症状而不是根本原因。类似这样：

实现（“org.elasticsearch.client:elasticsearch rest高级客户端：${elasticsearchVersion}”）{force=true，因为“Micronaut 2 BOM引入了与运行6的集群不兼容的elasticsearch 7”}

@333我还没有重新访问它。对不起，没有消息。