maven - 为什么 Maven 会错误地上传快照以发布存储库？

Question

我正在尝试使用 maven-deploy-plugin 将发布和快照上传到 Nexus 存储库。但是我遇到了这个错误

[INFO] [deploy:deploy {execution: default-deploy}]
[INFO] Retrieving previous build number from nexus
Uploading: http://localhost:8081/nexus/content/repositories/snapshots/info/afilias/edr/edr-app/1.0.4-SNAPSHOT/edr-app-1.0.4-20120605.140242-20.jar
56K uploaded  (edr-app-1.0.4-20120605.140242-20.jar)
[INFO] Uploading project information for edr-app 1.0.4-20120605.140242-20
[INFO] Retrieving previous metadata from nexus
[INFO] Uploading repository metadata for: 'artifact info.afilias.edr:edr-app'
[INFO] Retrieving previous metadata from nexus
[INFO] Uploading repository metadata for: 'snapshot info.afilias.edr:edr-app:1.0.4-SNAPSHOT'
[INFO] Retrieving previous build number from nexus
Uploading: http://localhost:8081/nexus/content/repositories/snapshots/info/afilias/edr/edr-app/1.0.4-SNAPSHOT/edr-app-1.0.4-20120605.140242-20.tar.gz
4286K uploaded  (edr-app-1.0.4-20120605.140242-20.tar.gz)
[INFO] [deploy:deploy-file {execution: default}]
Uploading: http://localhost:8081/nexus/content/repositories/releases/info/afilias/edr/edr-app/1.0.4/edr-app-1.0.4.tar.gz
89530K uploaded  (edr-app-1.0.4.tar.gz)
[INFO] Uploading project information for edr-app 1.0.4
[INFO] Retrieving previous metadata from remote-repository
[INFO] Uploading repository metadata for: 'artifact info.afilias.edr:edr-app'
[INFO] Retrieving previous build number from remote-repository
[INFO] repository metadata for: 'snapshot info.afilias.edr:edr-app:1.0.4-SNAPSHOT' could not be found on repository: remote-repository, so will be created
Uploading: http://localhost:8081/nexus/content/repositories/releases/info/afilias/edr/edr-app/1.0.4-SNAPSHOT/edr-app-1.0.4-20120605.140242-20.tar.gz
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error deploying attached artifact /home/mren/trunk2/target/edr-app-1.0.4-SNAPSHOT.tar.gz: Error deploying artifact: Failed to transfer file: http://localhost:8081/nexus/content/repositories/releases/info/afilias/edr/edr-app/1.0.4-SNAPSHOT/edr-app-1.0.4-20120605.140242-20.tar.gz. Return code is: 400

这是我在 pom.xml 中的配置:

<project>
 ...
    <distributionManagement>
       <repository>
          <id>releases</id>
          <name>Releases</name>
          <url>http://localhost:8081/nexus/content/repositories/releases</url>
        </repository>
        <snapshotRepository>
          <id>snapshots</id>
          <name>Snapshots</name>
          <url>http://localhost:8081/nexus/content/repositories/snapshots</url>
        </snapshotRepository>
      </distributionManagement>
  ...
  <build>
   ...
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-deploy-plugin</artifactId>
        <version>2.7</version>
        <executions>
          <execution>
            <phase>deploy</phase>
            <goals>
              <goal>deploy-file</goal>
            </goals>
            <configuration>
              <file>target/edr-install-1.0.4-${revision}.tar.gz</file>
              <url>${project.distributionManagement.repository.url}</url>
              <packaging>tar.gz</packaging>
              <artifactId>artifactId</artifactId>
              <groupId>groupId</groupId>
              <version>1.0.4-${revision}</version>
            </configuration>
          </execution>
        </executions>
      </plugin>
   ...
  </build>
...
</project>

从我的 settings.xml 文件中:

<settings>
  <server>
      <id>releases</id>
      <username>admin</username>
      <password>admin123</password>
    </server>
    <server>
      <id>snapshots</id>
      <username>admin</username>
      <password>admin123</password>
    </server>
  </servers>
  <profiles>
    <profile>
      <id>nexus</id>
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
      <repositories>
        <repository>
          <id>releases</id>
          <name>Releases</name>
          <url>http://localhost:8081/nexus/content/repositories/releases</url>
          <releases>
            <enabled>true</enabled>
          </releases>
          <snapshots>
            <enabled>false</enabled>
          </snapshots>
        </repository>
        <repository>
          <id>snapshots</id>
          <name>Snapshots</name>
          <url>http://localhost:8081/nexus/content/repositories/snapshots</url>
          <releases>
            <enabled>false</enabled>
          </releases>
          <snapshots>
            <enabled>true</enabled>
          </snapshots>
        </repository>
      </repositories>
      </profile>
  </profiles>
</settings>

我确定此配置曾经有效，但现在它吐出一个错误。不确定哪里出了问题。

nexus 日志告诉我它正在尝试将快照上传到发布存储库

jvm 1    | 2012-06-04 14:16:31 INFO  [tp1706427008-35] - org.sonatype.nexus.proxy.maven.maven2.M2Repository - Storing of item releases:/info/afilias/edr/edr-app/1.0.4-SNAPSHOT/edr-app-1.0.4-20120604.181534-1.tar.gz is forbidden by Maven Repository policy. Because releases is a RELEASE repository
jvm 1    | 2012-06-04 14:16:31 ERROR [tp1706427008-35] - org.sonatype.nexus.rest.ContentPlexusResource - Got exception during processing request "PUT http://localhost:8081/nexus/content/repositories/releases/info/afilias/edr/edr-app/1.0.4-SNAPSHOT/edr-app-1.0.4-20120604.181534-1.tar.gz": Storing of item releases:/info/afilias/edr/edr-app/1.0.4-SNAPSHOT/edr-app-1.0.4-20120604.181534-1.tar.gz is forbidden by Maven Repository policy. Because releases is a RELEASE repository

Answer 1

您的 settings.xml 不正确。请配置 Maven 以使用 Nexus correctly following the book chapter.具体使用镜像设置和其中的 url，而不是存储库和 pluginRepository 的特定 url。

它会干扰您正确的 Maven pom，并最终尝试将快照部署到发布存储库中，这是不正确的。

此外，使用正确的目标/命令也很重要。不要直接使用 deploy-file 目标。

直接运行命令

mvn clean deploy

正在构建中。

还有一个澄清。 Maven 将部署根据版本确定的任何内容。如果它以 -SNASPHOT 结尾，则它是一个开发版本并被发布到快照存储库(并将允许重新部署增加版本号)，如果不是，则它被认为是一个发布并将部署到发布存储库。一个项目不能同时是快照和发布。这是一个或另一个。

不要混淆release和snapshot这两个概念!

在部署额外的 Artifact 方面，如果它们没有关联，或者如果它们正在查看构建助手插件的附加 Artifact 目标，我会将它们拉出到一个单独的项目/模块中。