Eclipse 中使用 Maven

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原文：使用 Eclipse 构建 Maven 项目 (step-by-step)

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1. 安装 m2eclipse 插件时出错：

   Cannot complete the install because one or more required items could not be found.
    Software being installed: m2e - Maven Integration for Eclipse (includes Incubating components) 1.7.0.20160603-1933 (org.eclipse.m2e.feature.feature.group 1.7.0.20160603-1933)
    Missing requirement: Maven Integration for Eclipse 1.7.0.20160603-1933 (org.eclipse.m2e.core 1.7.0.20160603-1933) requires 'bundle org.eclipse.osgi 3.10.0' but it could not be found
    Cannot satisfy dependency:
     From: Maven Integration for Eclipse (Editors) 1.7.0.20160603-1933 (org.eclipse.m2e.editor 1.7.0.20160603-1933)
     To: bundle org.eclipse.m2e.core [1.7.0,1.8.0)
    Cannot satisfy dependency:
     From: m2e - Maven Integration for Eclipse (includes Incubating components) 1.7.0.20160603-1933 (org.eclipse.m2e.feature.feature.group 1.7.0.20160603-1933)
     To: org.eclipse.m2e.editor [1.7.0.20160603-1933]

   根据 Maven in Eclipse: step by step installation 里的回答，好像是因为 Eclipse 不支持最新版本的 m2e 导致的，试了下 1.4-最新的 1.7 都不行，就先安装了 1.0 版的 (http://download.eclipse.org/technology/m2e/milestones/1.0).

2. Eclipse 使用 Maven 创建 Web 时错误：Could not resolve archetype org.apache.maven.archetypes:maven-archetype-webap

3. Maven build 时出错（-Dmaven.multiModuleProjectDirectory system propery is not set. Check $M2_HOME environment variable and mvn script match.）

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   原文：http://fxb4632242.iteye.com/blog/2193945

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   在 Window->Preference->Java->Installed JREs->Edit 的 Default VM arguments 中设置

   -Dmaven.multiModuleProjectDirectory=$M2_HOME

4. Plugin org.apache.maven.plugins:maven-clean-plugin:2.5 or one of its depende

   好像是以为之前配的 setting.xml 里的 mirror 里没有对应的插件导致的。把 mirror 删掉就好了。

5. 运行 Maven 是报错：

   No goals have been specified for this build

   pom.xml 文件 <build> 标签后面加上 <defaultGoal>compile</defaultGoal> 即可