为什么Maven（错误地？）将我的SNAPSHOT部署到版本库和快照库？

Question

我在尝试设置项目以部署到内部联系存储库时目前遇到问题。由于我对整个Maven都比较陌生，因此我认为在如何建立分销管理方面我并没有真正理解的东西。

基本问题是，当我执行“mvn deploy”时，工件已成功部署到快照存储库，但Maven也试图将其部署到发布存储库，因为它应该是失败的。我对当前配置的理解是，它不应该将其部署到发布存储库。

我已经包含了各种配置元素下方，但如果我其实应该是管理与配置文件中的部分，以便建立快照只定义，并发布版本只定义我想知道。

对此的任何帮助/澄清将不胜感激。

我在我的POM配电管理的以下内容：

<distributionManagement> 
<repository> 
    <id>internal-releases</id> 
    <name>Internal Releases</name> 
    <url>http://localhost:8081/nexus/content/repositories/releases</url> 
</repository> 
<snapshotRepository> 
    <id>internal-snapshots</id> 
    <name>Internal Snapshots</name> 
    <url>http://localhost:8081/nexus/content/repositories/snapshots</url> 
</snapshotRepository> 
</distributionManagement> 

其他地方我有以下设置为允许使用这些存储库中获得文物POM：

<repositories> 
<repository> 
    <id>internal-releases</id> 
    <url>http://localhost:8081/nexus/content/repositories/releases</url> 
    <snapshots><enabled>false</enabled></snapshots> 
</repository> 
<repository> 
    <id>internal-snapshots</id> 
    <url>http://localhost:8081/nexus/content/repositories/snapshots</url> 
    <snapshots><enabled>true</enabled></snapshots> 
</repository> 
<!-- other repos, etc, etc --> 
</repositories> 

我在我的settings.xml中有正确的设置来提供证书，以便能够发布到我的计算机上运行的此测试nexus实例，并且实际上它正在成功部署快照。

的问题是，它也试图部署快照释放存储库，它被配置为禁止快照。

从“MVN部署”输出包括以下内容：

[INFO] [deploy:deploy {execution: default-deploy}] 
[INFO] Retrieving previous build number from internal-snapshots 
Uploading: http://localhost:8081/nexus/content/repositories/snapshots/com/internal/service/1.0.0-SNAPSHOT/service-1.0.0-20101104.170338-8.war 
405K uploaded (service-1.0.0-20101104.170338-8.war) 
[INFO] Retrieving previous metadata from internal-snapshots 
[INFO] Uploading repository metadata for: 'snapshot com.internal:service:1.0.0-SNAPSHOT' 
[INFO] Retrieving previous metadata from internal-snapshots 
[INFO] Uploading repository metadata for: 'artifact com.internal:service' 
[INFO] Uploading project information for service 1.0.0-20101104.170338-8 
[INFO] [deploy:deploy-file {execution: default}] 
[INFO] Retrieving previous build number from remote-repository 
[INFO] repository metadata for: 'snapshot com.internal:service:1.0.0-SNAPSHOT' could not be found on repository: remote-repository, so will be created 
Uploading: http://localhost:8081/nexus/content/repositories/releases/com/internal/service/1.0.0-SNAPSHOT/service-1.0.0-20101104.170338-1.jar 
[INFO] ------------------------------------------------------------------------ 
[ERROR] BUILD ERROR 
[INFO] ------------------------------------------------------------------------ 
[INFO] Error deploying artifact: Failed to transfer file: http://localhost:8081/nexus/content/repositories/releases/com/internal/service/1.0.0-SNAPSHOT/service-1.0.0-20101104.170338-1.jar. Return code is: 400 

Nexus的日志包含以下（因为我希望它）：

jvm 1 | 2010-11-04 13:03:39 INFO [p-759477796-118] - o.s.n.p.m.m.M2Repos~   - Storing of item releases:/com/internal/service/1.0.0-SNAPSHOT/service-1.0.0-20101104.170338-1.jar is forbidden by Maven Repository policy. Because releases is a RELEASE repository 
jvm 1 | 2010-11-04 13:03:39 ERROR [p-759477796-118] - o.s.n.r.ContentPlex~   - Got exception during processing request "PUT http://localhost:8081/nexus/content/repositories/releases/com/internal/service/1.0.0-SNAPSHOT/service-1.0.0-20101104.170338-1.jar": Storing of item releases:/com/internal/service/1.0.0-SNAPSHOT/service-1.0.0-20101104.170338-1.jar is forbidden by Maven Repository policy. Because releases is a RELEASE repository 

Answer 1

所以最好的线索其实原来是正确的日志在我的眼前。我曾经想过的唯一的工件是由我正在使用的POM生成的.war，但是您会注意到在日志中，Maven试图部署到该版本的工件实际上是一个.jar。

这是不够的指针（即提供尖上有人Maven用户邮件列表）来寻找，最终发现有人列入部署阶段以下额外的配置。

<plugin> 
<groupId>org.apache.maven.plugins</groupId> 
<artifactId>maven-deploy-plugin</artifactId> 
<executions> 
<execution> 
    <phase>deploy</phase> 
    <goals> 
     <goal>deploy-file</goal> 
    </goals> 
    <configuration> 
     <packaging>jar</packaging> 
     <generatePom>true</generatePom> 
     <url>${project.distributionManagement.repository.url}</url> 
     <artifactId>${project.artifactId}</artifactId> 
     <groupId>${project.groupId}</groupId> 
     <version>${project.version}</version> 
     <file>${project.build.directory}/${project.build.finalName}.jar</file> 
    </configuration> 
    </execution> 
</executions> 
</plugin> 

请注意，这实际上是直接引用${project.distributionManagement.repository.url}。另外，这种配置有些误导，应该通过war插件的attachClasses属性来完成。

Answer 2

难道是因为神器版本没有-SNAPSHOT后缀？

Answer 3

1. 定义下列财产在你的POM Maven的部署，插件

   <deployFileUrl>${project.distributionManagement.snapshotRepository.url}</deployFileUrl> 
   

2. 更改配置如下：

   <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-deploy-plugin</artifactId> 
       <version>2.5</version> 
       <configuration> 
        <skip>true</skip> 
       </configuration> 
       <executions> 
        <execution> 
         <phase>deploy</phase> 
         <configuration> 
          <packaging>jar</packaging> 
          <generatePom>true</generatePom> 
          <url>${deployFileUrl}</url> 
          <artifactId>${project.artifactId}</artifactId> 
          <groupId>${project.groupId}</groupId> 
          <version>${project.version}</version> 
          <file>${project.build.directory}/${project.build.finalName}.jar</file> 
         </configuration> 
         <goals> 
          <goal>deploy-file</goal> 
         </goals> 
        </execution> 
       </executions> 
   </plugin> 
   

3. 添加以下配置文件设定与存储库中的deployFileUrl财产网址

   <profiles> 
       <profile> 
        <id>release-mode</id> 
        <properties> 
         <deployFileUrl>${project.distributionManagement.repository.url}</deployFileUrl> 
        </properties> 
       </profile> 
   </profiles> 
   

4. 最后调用此配置文件中的maven释放小插件

   <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-release-plugin</artifactId> 
       <version>2.0-beta-9</version> 
       <configuration> 
        <releaseProfiles>release-mode</releaseProfiles> 
       </configuration> 
   </plugin>