使用Maven Relelase插件准备发布阶段时出错

Question

我是Maven的新手，正在尝试使用maven-release-plugin执行发布。运行mvn Release：Prepare后，我在控制台中收到以下信息：

null

我POM文件看起来像：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.mayacomp</groupId>
  <artifactId>feeder</artifactId>
  <version>1.0.3-SNAPSHOT</version>
  <packaging>jar</packaging>


  <url>http://maven.apache.org</url>


  <scm>
   <developerConnection>scm:svn:http://svn01/svn/DEV/Maya/Code/feeder/tag/feeder-1.0.3</developerConnection>
   <url>scm:svn:http://svn01/svn/DEV/Maya/Code/feeder/tag/feeder-1.0.3</url>
 </scm>

  <properties>

    <java.version>1.8</java.version>
    <jdk.version>1.8</jdk.version>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>

   <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>


<dependency>
    <groupId>net.sf.opencsv</groupId>
    <artifactId>opencsv</artifactId>
    <version>2.3</version>
</dependency>


 <dependency>
    <groupId>org.apache.maven.shared</groupId>
    <artifactId>maven-shared-utils</artifactId>
    <version>0.7</version>
</dependency>

  <dependency>
    <groupId>org.apache.maven</groupId>
    <artifactId>maven-archiver</artifactId>
    <version>2.6</version>
</dependency>

<dependency>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-assembly-plugin</artifactId>
    <version>2.5.3</version>
</dependency>

<dependency>
    <groupId>org.apache.maven.shared</groupId>
    <artifactId>maven-common-artifact-filters</artifactId>
    <version>1.4</version>
</dependency>

  <dependency>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-release-plugin</artifactId>
          <version>2.5.2</version>
</dependency>

</dependencies>


  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.3</version>
        <configuration>
            <source>${jdk.version}</source>
            <target>${jdk.version}</target>
        </configuration>
      </plugin>

      <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-jar-plugin</artifactId>
          <version>2.6</version>
          <configuration>
            <archive>
                <manifest>
                    <mainClass>com.mayacomp.feeder.App</mainClass>
                </manifest>
            </archive>
          </configuration>
      </plugin>



    <plugin>
      <artifactId>maven-assembly-plugin</artifactId>
      <configuration>
        <archive>
          <manifest>
            <mainClass>com.mayacomp.feeder.App</mainClass>
          </manifest>
        </archive>
        <descriptorRefs>
          <descriptorRef>jar-with-dependencies</descriptorRef>
        </descriptorRefs>
      </configuration>
    </plugin>

     <plugin>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-release-plugin</artifactId>
       <version>2.5.2</version>
        <configuration>
                    <tagBase>http://svn01/svn/DEV/Maya/Code/feeder/tag</tagBase>
                    <branchBase>http://svn01/svn/DEV/Maya/Code/feeder/branches</branchBase>
                    <preparationGoals>clean install</preparationGoals>
                    <goal>deploy</goal>
                   <autoVersionSubmodules>true</autoVersionSubmodules>
          </configuration>
     </plugin>


    </plugins>
  </build>


<distributionManagement>
 <repository>
    <id>com-mayacomp-retail-release</id>
    <url>http://192.168.0.17::8080/nexus-webapp-2.11.0-02/content/repositories/com-mayacomp-retail-release</url>
  </repository>
   <snapshotRepository>
    <id>com-mayacomp-retail-snapshot</id>
    <url>http://192.168.0.17::8080/nexus-webapp-2.11.0-02/content/repositories/com-mayacomp-retail-snapshot</url>
  </snapshotRepository>
 </distributionManagement>

</project>

POM中的固定scm元素：

<scm> <developerConnection>scm:svn:http://svn01/svn/DEV/Maya/Code/Feeder/trunk</developerConnection>
<url>scm:svn:http://svn01/svn/DEV/Maya/Code/Feeder/trunk</url>
</scm>

Answer 1

不要将maven-assembly-plugin、maven-shared-utils、maven-common-artifact-filters、maven-release-plugin定义为依赖项。这些插件不需要定义为依赖项。它们与您的生产代码没有任何关联。此外，您不需要在maven-release-plugin配置中定义tagbase、branchbase和preparationgoals和goal，因为它看起来在svn存储库中有一个默认的文件夹布局。

最重要的部分是，您需要更改scm条目以表示主干，而不是标记，如果您正在处理快照，这是默认的。