Maven 3:Maven在5分钟内"mvn archetype:generate ..."命令不工作

Question

我第一次安装了Maven 3.1.1.在"Maven in 5 Minutes"入门指南中

http://maven.apache.org/guides/getting-started/maven-in-five-minutes.html

它说要验证安装

mvn --version

我收到了预期的回复:

Apache Maven 3.1.1 (0728685237757ffbf44136acec0402957f723d9a; 2013-09-17 11:22:22-0400)
Maven home: C:\applications\programming\apache-maven-3.1.1
Java version: 1.6.0_17, vendor: Sun Microsystems Inc.
Java home: C:\applications\programming\java_6_17\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "x86", family: "windows"

在下一步中,在"创建项目"下,它表示要创建一个新目录,在该目录中打开命令提示符,然后执行

mvn archetype:generate -DgroupId=com.mycompany.app -DartifactId=my-app -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

我创建了一个名为的目录xjmaven,在其中运行命令,但它无效.这是回应:

[R:\jeffy\programming\sandbox\xjmaven]mvn archetype:generate -DgroupId=xbnjava -DartifactId=XBN-Java -Darchetype ArtifactId=maven-archetype-quickstart -DinteractiveMode=false
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.251s
[INFO] Finished at: Sat Nov 23 12:11:56 EST 2013
[INFO] Final Memory: 2M/4M
[INFO] ------------------------------------------------------------------------
[ERROR] The goal you specified requires a project to execute but there is no POM in this directory (R:\jeffy\programming\sandbox\xjmaven). Please verify you invoked Maven from the correct directory. -> [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/MissingProjectException

我查看了参数groupId,artifactId并archetypeArtifactId尝试了一些不同的值(如上所示),但我仍然得到相同的BUILD FAILURE响应.

我手动将pom.xml文件(来自同一网页)放在xjmaven目录中,然后再次运行.它下载了一堆东西(虽然没有xjmaven),但后来失败了这条消息:

[INFO] Generating project in Interactive mode
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/archetypes/true/1.0/true-1.0.jar
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Skipping Maven Quick Start Archetype
[INFO] This project has been banned from the build due to previous failures.
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 45.047s
[INFO] Finished at: Sat Nov 23 12:04:01 EST 2013
[INFO] Final Memory: 7M/17M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-archetype-plugin:2.2:generate (default-cli) on project XBN-Java: The desired archetype does not exist (org.apache.maven.archetypes:true:1.0) -> [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/MojoFailureException

重复该命令会给出以下响应:

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Quick Start Archetype 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> maven-archetype-plugin:2.2:generate (default-cli) @ XBN-Java >>>
[INFO]
[INFO] <<< maven-archetype-plugin:2.2:generate (default-cli) @ XBN-Java <<<
[INFO]
[INFO] --- maven-archetype-plugin:2.2:generate (default-cli) @ XBN-Java ---
[INFO] Generating project in Interactive mode
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Skipping Maven Quick Start Archetype
[INFO] This project has been banned from the build due to previous failures.
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.444s
[INFO] Finished at: Sat Nov 23 12:04:32 EST 2013
[INFO] Final Memory: 8M/14M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-archetype-plugin:2.2:generate (default-cli) on project XBN-Java: The desired archetype does not exist (org.apache.maven.archetypes:true:1.0) -> [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/MojoFailureException

我删除了pom.xml(它是目录中唯一的文件......它下载的东西不在那里),并重新开始.在我上面写的时候,一切都发生了(很糟糕).

---

我记得几年前尝试过Maven,也可能无法超越入门阶段.

如果有人对如何通过这个有一些建议,我们将不胜感激.真的很沮丧.

Answer 1

也许您使用的是Windows PowerShell？

如果是这样,您需要在参数定义周围加上引号:

mvn archetype:generate "-DarchetypeGroupId=org.apache.maven.archetypes" "-DgroupId=com.mycompany.app" "-DartifactId=my-app"

Answer 2

在执行目标时出现一些语法错误generate。此外，您不需要创建 pom.xml 或任何目录结构。您会注意到generate目标创建了一个与artifactId 具有相同名称的目录。

例如，您缺少像 com.company.app 这样的约定-DgroupId（虽然不是一个大问题），在 中有空间-Darchetype ArtifactId等。

我刚刚尝试了下面并且成功了：

mvn archetype:generate -DgroupId=com.mycompany.app -DartifactId=my-app -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false