不可解析的父POM:构建Maven 3项目站点时

Question

我正在尝试构建网站时,我目前面临与Maven 3的以下问题.我将非常感谢你的帮助.

mvn清洁网站

..........
[INFO] Reactor Summary:
[INFO] 
[INFO] Project A ......................................... SUCCESS [15.383s]
[INFO] Project B ......................................... SUCCESS [2.232s]
[INFO] My Site ........................................... FAILURE [0.105s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 24.769s
[INFO] Finished at: Fri Jun 29 14:26:04 AMT 2012
[INFO] Final Memory: 18M/150M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.1:site (default-site) on project site: SiteToolException: Unable to read local module-POM: 1 problem was encountered while building the effective model for my.com:projA:0.1-SNAPSHOT
[ERROR] [FATAL] Non-resolvable parent POM: Could not find artifact my.com:parent-pom:pom:0.1-SNAPSHOT and 'parent.relativePath' points at no local POM @ line 12, column 13
[ERROR] for project my.com:projA:0.1-SNAPSHOT
.............

首先是配置:

Apache Maven 3.0.4 (r1232337; 2012-01-17 12:44:56+0400)
Java version: 1.7.0_04, vendor: Oracle Corporation
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.7.4", arch: "x86_64", family: "mac"
Nexus repository: 2.0.6

父母POM:

<modelVersion>4.0.0</modelVersion>

<name>Parent POM</name>
<groupId>my.com</groupId>
<artifactId>parent-pom</artifactId>
<version>0.1-SNAPSHOT</version>
<packaging>pom</packaging>

<build>                         
    <pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-site-plugin</artifactId>
                <version>3.1</version>  
                <configuration>
                    <reportPlugins>
                        <plugin>
                            <groupId>org.apache.maven.plugins</groupId>
                            <artifactId>maven-project-info-reports-plugin</artifactId>
                            <version>2.4</version>
                        </plugin>            
                    </reportPlugins>
                </configuration>
            </plugin>              
        </plugins>
    </pluginManagement>      
</build>

聚合项目pom:

<modelVersion>4.0.0</modelVersion>

<name>My Site</name>
<groupId>my.com</groupId>
<artifactId>site</artifactId>
<version>0.1-SNAPSHOT</version>
<packaging>pom</packaging>

<parent>
    <groupId>my.com</groupId>
    <artifactId>parent-pom</artifactId>
    <version>0.1-SNAPSHOT</version>
    <relativePath/>
</parent>

<modules>

    <module>projA</module>
    <module>projB</module>

</modules> 

项目A的pom:

<modelVersion>4.0.0</modelVersion>

<name>Project A</name>
<groupId>my.com</groupId>
<artifactId>projA</artifactId>
<version>0.1-SNAPSHOT</version>

<parent>
    <groupId>my.com</groupId>
    <artifactId>parent-pom</artifactId>
    <version>0.1-SNAPSHOT</version>
    <relativePath/>        
</parent>

项目B的pom:

4.0.0

<name>Project B</name>
<groupId>my.com</groupId>
<artifactId>projB</artifactId>
<version>0.1-SNAPSHOT</version>

<parent>
    <groupId>my.com</groupId>
    <artifactId>parent-pom</artifactId>
    <version>0.1-SNAPSHOT</version>
    <relativePath/>        
</parent> 

这是我运行"mvn clean site"的文件夹的结构:

./pom.xml  (aggregation project)
./projA/pom.xml (Project A)
./projB/pom.xml (Project B)

在执行mvn clean site以下命令之前,parent-pom已成功部署到NEXUS存储库mvn deploy -DaltDeploymentRepository=snapshots::default::http://MyServer:8081/nexus/content/repositories/snapshots

最后问题本身:

当我mvn clean site成功构建父-pom站点部署后立即运行.如果我从本地存储库(〜/ .m2/repository)删除文件夹(及其内容)"my"(它包含parent-pom),然后尝试构建网站,mvn clean site我收到了开头描述的错误.实际上Maven从NEXUS下载了父pom.我已经比较了部署后生成的下载文件和文件,并且已经意识到很少丢失,例如maven-metadata-local.xml靠近"0.1-SNAPSHOT"文件夹.

因此,当我尝试从Jenkins运行网站构建作业时,我收到上述错误,因为没有从Jenkins运行的机器部署父pom.

我怎么能想出这个问题或者我做错了什么？

谢谢.

Answer 1

问题不在你的 pom 文件中。当我构建你的aggregation-pom时，Maven通常从远程仓库下载parent-pom（在我从本地仓库删除之后）。

尝试这个：

mvn -U clean install site dependency:purge-local-repository

此外，您可以进行一些清理：

• <relativePath/>从所有这些中删除
• 从 projA 和 ProjB 中删除<version>0.1-SNAPSHOT</version>和<groupId>my.com</groupId>（它们是从父级继承的）