maven报错处理No goals have been specified for this build.

项目场景：

学习Spring期间构建maven项目遇到报错

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问题描述：

构建Maven项目出现以下报错：

[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. -> \[Help 1\]

如图

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解决方案：

在pom.xml中的build标签下添加上这一行即可

<defaultGoal>compile</defaultGoal>

如图