面向多模块项目的Maven配置

Question

我正在学习本教程https://spring.io/guides/gs/multi-module/#scratch

在根目录中，我创建了3个目录:moduleA、moduleB和moduleC

我运行了mvn-n io.takari:maven:wrapper

MacBook-Pro-de-calzada:multi-module-project-example nunito$ sudo ./mvnw
/Users/nunito/Development/J2EE/workspace-sts-3.8.4.RELEASE/multi-module-project-example
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.066 s
[INFO] Finished at: 2017-04-24T20:03:37+02:00
[INFO] Final Memory: 7M/245M
[INFO] ------------------------------------------------------------------------
[ERROR] No goals have been specified for this build. You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>. Available lifecycle phases are: validate, initialize, generate-sources, process-sources, generate-resources, process-resources, compile, process-classes, generate-test-sources, process-test-sources, generate-test-resources, process-test-resources, test-compile, process-test-classes, test, prepare-package, package, pre-integration-test, integration-test, post-integration-test, verify, install, deploy, pre-clean, clean, post-clean, pre-site, site, post-site, site-deploy. -> [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/NoGoalSpecifiedException
MacBook-Pro-de-calzada:multi-module-project-example nunito$ 

/Users/calzada/Development/J2EE/workspace-sts-3.8.4.RELEASE/multi-module-project-example
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.062 s
[INFO] Finished at: 2017-04-24T22:38:20+02:00
[INFO] Final Memory: 8M/309M
[INFO] ------------------------------------------------------------------------
[ERROR] The goal you specified requires a project to execute but there is no POM in this directory (/Users/calzada/Development/J2EE/workspace-sts-3.8.4.RELEASE/multi-module-project-example). 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
MacBook-Pro-de-calzada:multi-module-project-example nunito$ 

Answer 1

您需要一个pom.xml文件才能运行./mvnw clean install。

[ERROR]您指定的目标需要执行一个项目，但该目录中没有POM(/users/calzada/development/j2ee/workspace-sts-3.8.4.release/multi-module-project-example)。

在本教程中，您可以了解用于多模块项目的Maven配置和用于库的Maven配置。在那里您将找到必要的pom.xml文件。