Java Maven没有'；t下载依赖项："；存储库系统处于脱机状态”；

我对Maven感到不舒服，但我设法让它在Netbeans上工作了一段时间。但突然间，Maven拒绝下载新的依赖项：

org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal on project matheos: Could not resolve dependencies for project lecoleopensource:matheos:jar:1.4.4-SNAPSHOT: The repository system is offline but the artifact org.docx4j:docx4j-ImportXHTML:jar:3.2.2 is not available in the local repository.
    at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:210)
    at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resolveProjectDependencies(LifecycleDependencyResolver.java:117)
    at org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved(MojoExecutor.java:258)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:201)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
    at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
    at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
    at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
    at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
    at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.project.DependencyResolutionException: Could not resolve dependencies for project lecoleopensource:matheos:jar:1.4.4-SNAPSHOT: The repository system is offline but the artifact org.docx4j:docx4j-ImportXHTML:jar:3.2.2 is not available in the local repository.
    at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:189)
    at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:185)
    ... 22 more
Caused by: org.sonatype.aether.resolution.DependencyResolutionException: The repository system is offline but the artifact org.docx4j:docx4j-ImportXHTML:jar:3.2.2 is not available in the local repository.
    at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:375)
    at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:183)
    ... 23 more
Caused by: org.sonatype.aether.resolution.ArtifactResolutionException: The repository system is offline but the artifact org.docx4j:docx4j-ImportXHTML:jar:3.2.2 is not available in the local repository.
    at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:538)
    at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:216)
    at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:358)
    ... 24 more
Caused by: org.sonatype.aether.transfer.ArtifactNotFoundException: The repository system is offline but the artifact org.docx4j:docx4j-ImportXHTML:jar:3.2.2 is not available in the local repository.
    at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:348)
    ... 26 more

有些东西显然是离线的，但我不明白为什么以及如何解决这个问题

以下是我的pom文件的一部分：

    <dependencies>
        <!-- docx4j : converts html to docx -->
        <dependency>
                <groupId>org.docx4j</groupId>
                <artifactId>docx4j</artifactId>
                <version>3.2.2</version>
        </dependency>

        <!-- pdf2dom : converts pdf to html -->
        <!--dependency>
                <groupId>net.sf.cssbox</groupId>
                <artifactId>pdf2dom</artifactId>
                <version>1.3</version>
        </dependency-->


    </dependencies>

org.docx4j
docx4j
3.2.2

我不明白的是直到现在它还可以正常工作

我不太了解Maven，所以告诉我是否应该提供其他细节。谢谢大家!

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编辑：我删除了存储库部分，仍然是原来的部分。我将artefactID编辑为docx4j，仍然是一样的。

只需删除您定义的存储库部分。您不需要定义本地存储库，因为它仍然在settings.xml Maven配置中定义，也不需要将项目依赖项放在src/main/resources下

更新

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可能是你在“离线模式”下运行Maven吗？如果有“-o”，请查看您的Netbeans首选项->Java->Maven和您的运行配置参数。

查看此消息

，原因是：org.apache.maven.project.DependencyResolutionException:无法解析project lecoleopensource:matheos:jar:1.4.4-SNAPSHOT:存储库系统脱机，但工件org.docx4j:docx4j ImportXHTML:jar:3.2.2在本地存储库中不可用。

。Maven尝试下载org.docx4j的依赖项，但无法下载，并尝试在本地repo中查找org.docx4j。这是@Rafael Osipov：我或多或少理解这个问题。我不明白的是，为什么maven会像你说的那样“做不到”…好吧，我删除了它，但它并没有解决我的问题。。。我这样做是因为我有一个“not Maven”依赖项，我不知道把它放在哪里，所以我把它放在src/main/resources中……可以通过将范围设置为“system”来附加这些依赖项。