maven - Artifact 已下载，但未从我的单个 Nexus 服务器使用

Question

我是 Nexus 新手，正在尝试针对我的单个 Nexus 服务器运行 Maven 项目。在运行项目时(已知可以正确构建和运行的 Spring Roo 示例)，除了两个里程碑 jar 之外，其他所有 jar 都已加载。我的答案(也许不是最好的)是找到并直接(使用 POM)将 jar 上传到我的 Nexus 服务器(托管 repo)中，然后我将其放在公共(public)组中。

重新运行 mvn 项目时(使用 mvn package tomcat:run)，这 2 个文件似乎从服务器下载(见下面的控制台输出)，但 mvn 项目仍然找不到。为什么该项目显然会调用它们但不使用它们？谢谢。

这是控制台输出，显示正在下载，但没有被项目使用，还有我的 settings.xml(有问题的 jar 是 aspectjrt-1.6.11.M1 和 aspectjweaver-1.6.11.M1):

Last login: Mon Nov 14 06:03:25 on console
Macintosh-2:~ wlaprise$ cd coursemanager/
Macintosh-2:coursemanager wlaprise$ mvn package tomcat:run
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Course Manager Chapter 4 0.1.0.BUILD-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public/org/aspectj/aspectjrt/1.6.11.M1/aspectjrt-1.6.11.M1.pom
Downloaded: http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public/org/aspectj/aspectjrt/1.6.11.M1/aspectjrt-1.6.11.M1.pom (909 B at 0.5 KB/sec)
Downloading: http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public/org/aspectj/aspectjweaver/1.6.11.M1/aspectjweaver-1.6.11.M1.pom
Downloaded: http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public/org/aspectj/aspectjweaver/1.6.11.M1/aspectjweaver-1.6.11.M1.pom (912 B at 1.0 KB/sec)
Downloading: http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public/org/springframework/roo/org.springframework.roo.annotations/1.2.0.BUILD-SNAPSHOT/maven-metadata.xml
Downloading: http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public/org/springframework/roo/org.springframework.roo.osgi.bundle/1.2.0.BUILD-SNAPSHOT/maven-metadata.xml
Downloading: http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public/org/springframework/roo/org.springframework.roo.root/1.2.0.BUILD-SNAPSHOT/maven-metadata.xml
Downloading: http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public/org/aspectj/aspectjrt/1.6.11.M1/aspectjrt-1.6.11.M1.jar
Downloading: http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public/org/aspectj/aspectjweaver/1.6.11.M1/aspectjweaver-1.6.11.M1.jar
Downloaded: http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public/org/aspectj/aspectjrt/1.6.11.M1/aspectjrt-1.6.11.M1.jar (1640 KB at 689.5 KB/sec)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 13.607s
[INFO] Finished at: Mon Nov 14 06:17:42 CST 2011
[INFO] Final Memory: 5M/81M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project course-manager-chapter-04: Could not resolve dependencies for project org.rooinaction.coursemanager:course-manager-chapter-04:war:0.1.0.BUILD-SNAPSHOT: Could not find artifact org.aspectj:aspectjweaver:jar:1.6.11.M1 in nexus (http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public) -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
Macintosh-2:coursemanager wlaprise$ 

设置.xml -

<settings>
    <mirrors>
        <mirror>
            <!--This sends everything else to /public -->
            <id>nexus</id>
            <mirrorOf>*</mirrorOf>
            <url>http://www.c3works.com:8081/nexus-webapp-1.9.1.1/content/repositories/public</url>
        </mirror>
    </mirrors>
    <profiles>
        <profile>
            <id>nexus</id>
            <!--all requests to nexus via the mirror -->
            <repositories>
                <repository>
                    <id>central</id>
                    <url>http://central</url>
                    <releases><enabled>true</enabled></releases>
                    <snapshots><enabled>true</enabled></snapshots>
                </repository>
            </repositories>
            <pluginRepositories>
                <pluginRepository>
                    <id>central</id>
                    <url>http://central</url>
                    <releases><enabled>true</enabled></releases>
                    <snapshots><enabled>true</enabled></snapshots>
                </pluginRepository>
            </pluginRepositories>
        </profile>
    </profiles>
    <activeProfiles>
        <activeProfile>nexus</activeProfile>
    </activeProfiles>
    <pluginGroups>
        <pluginGroup>com.sonatype.maven.plugins</pluginGroup>
        <pluginGroup>org.sonatype.plugins</pluginGroup>
    </pluginGroups>
</settings>

Answer 1

首先是网址 http://central很好。它是一个从未使用过的虚拟占位符，因为您定义了镜像。

但是，您使用的镜像 url 很可能是错误的。通常，Nexus 中的存储库是托管或代理的，然后聚合到一个公共(public)“组”中。

公共(public)组的 url 默认 url 是 http://localhost:8081/nexus/content/groups/public/
如果您在 apache 后面进行代理或在端口 80 上运行，则将 localhost 替换为您的服务器并省略端口。

无论如何..重点是网址是/content/GROUPS/public ..您的网址很可能是错误的。测试只需在浏览器中尝试镜像中的 url。

当然，您希望在公共(public)组中可用的所有存储库都必须添加到其中。