Error message:
- execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-jar-plugin:2.3.1:jar (execution: default-jar, phase: process-classes)
多个子项目的pom.xml文件在eclipse下都有叉叉, 上面是error msg. 查阅网上资料, eclipse 读取pom.xml, 执行pom中的插件. 而m2e插件对pom中插件的不全部支持, eclipse就会提示pom.xml文件有错.
解决办法: 下载安装m2e-wtp插件, 可以在eclipse market中找到. 会解决大部分eclipse读取pom.xml的错误.
下面看看m2e-wtp插件的描述: 大概是加强eclipse中maven的支持, 依赖war/ejp/ear/rar.....
- Maven Integration for Eclipse WTP (a.k.a m2e-wtp) aims at providing a tight integration between Maven Integration for Eclipse (a.k.a m2e) and the Eclipse Web Tools Project (WTP) .
- m2e-wtp provides a set of m2e connectors used for the configuration of Java EE projects in WTP. It features :
- •Support for war projects : adds the Java and Dynamic Web Facets. Support war overlays and on-the-fly resource filtering
- •Support for ejb projects : adds the Java and EJB Facets.
- •Support for ear projects : adds the EAR Facet. Supports application.xml and jboss.xml file generation, resource filtering
- •Support for rar projects : adds the Java and Connector Facets.
- •Support for app-client projects : adds the Java and Application Client Facets. Supports deployment descriptor filtering.
- •Support for web-fragment projects : adds the Java and Web Fragment Facets if a web-fragment.xml file is detected in the resource folders.
- •Support for jar dependency projects : adds the Java and Utility Facets.
- Note that m2e-wtp requires m2e-wtp 1.0. You must make sure m2e's update site (http://download.eclipse.org/technology/m2e/releases/) is defined in :
- Window > Preferences > Install / Update > Available Software Sites
- Since m2e 1.0 is incompatible with previous versions, you may have to uninstall old m2e and m2e-wtp versions before proceeding with the installation.
再看看eclipse:
项目可以build了, delete后重新import, pom.xml和项目的叉叉都没了. 在打开pom.xml, 打开dependency hierarchy, 发现现在可以查看依赖关系了.
遗留问题1:
1. maven-dependency-plugin (goals "copy-dependencies", "unpack") is not supported by m2e.
- <!--My pom.xml segment-->
- ...................
- <plugin>
- <groupId>org.apache.maven.plugins</groupId>
- <artifactId>maven-dependency-plugin</artifactId>
- <executions>
- <execution>
- <id>copy-mar-dependencies</id>
- <phase>process-resources</phase>
- <goals>
- <goal>copy-dependencies</goal>
- </goals>
- <configuration>
- <includeTypes>mar</includeTypes>
- <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/modules</outputDirectory>
- </configuration>
- </execution>
- <execution>
- <id>copy-aar-dependencies</id>
- <phase>process-resources</phase>
- <goals>
- <goal>copy-dependencies</goal>
- </goals>
- <configuration>
- <includeTypes>aar</includeTypes>
- <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/services</outputDirectory>
- </configuration>
- </execution>
- </executions>
- </plugin>
- ......................
问题解决:
原因: 我用的两个eclipse，这个是由于用了M2E插件造成的，而在m2eclipse下就没有这个问题。当然，你可以用其他的打包插件，这个不是必须要用这个，所以，只是自己知道原因和解决就可以了。不一定是要换环境解决，你可以换一个plugin也可以。http://blog.csdn.net/sebatinsky/article/details/6273977
安装成功后, 有时项目会显示感叹号, 只要 update dependency, 感叹号变成叉叉, 再重新build就OK了. 项目就可以用eclipse编译, 替换jboss中class文件就可以了.
问题2: maven 提示找不到jdk. 没影响自己使用eclipse 中的maven.
warn info 贴上去, 答案遍地是. 我想说的是: 都试过, 不管用, 创建快捷方式,
添加: D:\tools\MVN+DE\eclipse\eclipse.exe -vm "C:\Program Files\Java\jdk1.6.0_30\bin\javaw.exe". 问题解决.