无法使用Gradle将工件发布到Nexus maven存储库

Question

我是Gradle、nexus和Maven的新手，并尝试使用Gradle'publish'任务将Maven工件从Jenkins发布到一个新的nexus存储库。Jenkins作业在发布时失败，出现以下错误。我已经在作业中为Nexus提供了用户名和密码。

:common-test:publishMavenJavaPublicationToMavenRepositoryCould not find metadata 
com.xx.audit:common-test:1.0.3-SNAPSHOT/maven-metadata.xml in
 remote (https://nexus.xx.com:8443/content/repositories/snapshots)

Upload https://nexus.xx.com:8443/content/repositories/snapshots/yy/audit/common-test/1.0.3-SNAPSHOT/common-test-1.0.3-20151102.120123-1.jar
Could not transfer artifact com.xx.audit:common-test:jar:1.0.3-20151102.120123-1 
from/to remote (https://nexus.xx.com:8443/content/repositories/snapshots):
 Could not write to resource 'yy/audit/common-test/1.0.3-SNAPSHOT/common-test-1.0.3-20151102.120123-1.jar'

在第一次发布之前，我们需要在nexus maven存储库中创建文件夹结构吗？并添加maven-metadata.xml？如何生成*.pom.sha和*.pom.md5。请帮帮我。

Build.Gradle配置：

  apply plugin: "maven-publish"

    //* New Gradle task to jar source
    task sourcesJar(type: Jar, dependsOn: classes) {
        classifier = 'sources'
        from sourceSets.main.allSource
    }

    //* New Gradle task to jar javadoc
    task javadocJar(type: Jar, dependsOn: javadoc) {
        classifier = 'javadoc'
        from javadoc.destinationDir
    }

    publishing {
        publications {
            mavenJava(MavenPublication) {
                from components.java

                artifact sourcesJar {
                    classifier "sources"
                }
            }
        }
    }

    publishing {
        repositories {
            maven {
                credentials {
                    username nexusUsername
                    password nexusPassword
                }   
                if (project.version.endsWith('-SNAPSHOT')) {
                    url nexusSnapshotRepoURL
                } else {
                    url nexusReleaseRepoURL
                }   
            }   
        }
    }

Answer 1

我不知道maven-publish Gradle插件。通常使用uploadArchives任务。在Nexus book examples项目中提供了其用法的完整示例。请将其用作测试凭据和安装程序的参考。