如何使Maven解析器为Shrinkwrap工作？

Question

我有这样的代码：

@Deployment(name = "default")
public static WebArchive getTestArchive() {
    File[] file = Maven.resolver().loadPomFromFile("../pom.xml")
            .importCompileAndRuntimeDependencies()
            .resolve("org.restlet.gae:org.restlet").withTransitivity().asFile();
    System.out.println("FILE>>>>>>>>" + file.toString());
    return ShrinkWrap.create(WebArchive.class, "simple.war")
            .addClass(org.restlet.ext.servlet.ServerServlet.class)
            .setWebXML("web.xml")
            .addAsWebInfResource("appengine-web.xml")
            .addAsWebInfResource("logging.properties");
}

但是，当测试运行时，它会抛出以下错误：

Caused by: org.jboss.shrinkwrap.resolver.api.ResolutionException: Unable to get version for dependency specified by org.restlet.gae:org.restlet:compile, it was not provided in neither <dependencyManagement> nor <dependencies> sections.
    at org.jboss.shrinkwrap.resolver.impl.maven.task.ResolveVersionFromMetadataTask.execute(ResolveVersionFromMetadataTask.java:91)
    at org.jboss.shrinkwrap.resolver.impl.maven.PomEquippedResolveStageBaseImpl.resolveVersion(PomEquippedResolveStageBaseImpl.java:85)
    at org.jboss.shrinkwrap.resolver.impl.maven.ResolveStageBaseImpl.resolveDependency(ResolveStageBaseImpl.java:189)
    at org.jboss.shrinkwrap.resolver.impl.maven.ResolveStageBaseImpl.resolveDependency(ResolveStageBaseImpl.java:184)
    at org.jboss.shrinkwrap.resolver.impl.maven.ResolveStageBaseImpl.resolve(ResolveStageBaseImpl.java:78)
    at org.jboss.shrinkwrap.resolver.impl.maven.ResolveStageBaseImpl.resolve(ResolveStageBaseImpl.java:43)
    ... 58 more

我的目标是解决POM的所有依赖关系，因此(希望) Restlet测试能够工作。

Answer 1

你的错误背后的原因似乎很明显。您的代码缺少restlet工件的版本号。

看起来应该是：

 File[] file = Maven.resolver().loadPomFromFile("../pom.xml")
            .importCompileAndRuntimeDependencies()
            .resolve("org.restlet.gae:org.restlet:2.3.0")  // Notice version number
            .withTransitivity().asFile();

或者，您可以在<dependencyManagement>部分中指定版本，但是您的错误消息告诉您，您也忘记了它。