mvn eclipse:eclipse 

但maven提示：

$ mvn eclipse:eclipse
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building AppFuse Struts 2 Application
[INFO]    task-segment: [eclipse:eclipse]
[INFO] ------------------------------------------------------------------------
[INFO] Preparing eclipse:eclipse
[INFO] [aspectj:compile {execution: default}]
[INFO] [native2ascii:native2ascii {execution: native2ascii-utf8}]
[INFO] [native2ascii:native2ascii {execution: native2ascii-8859_1}]
[INFO] [eclipse:eclipse {execution: default-cli}]
[INFO] Adding support for WTP version 1.5.
[INFO] Using Eclipse Workspace: null
[INFO] Adding default classpath container: org.eclipse.jdt.launching.JRE_CONTAINER
[INFO] Resource directory's path matches an existing source directory. Resources will be merged with the source directory src/main/resources
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Request to merge when 'filtering' is not identical. Original=resource src/main/resources: output=target/classes, include=[], exclude=[ApplicationResources_de.properties|ApplicationResources_fr.properties|ApplicationResources_ko.properties|ApplicationResources_nl.properties|ApplicationResources_no.properties|ApplicationResources_pt*.properties|ApplicationResources_tr.properties|ApplicationResources_zh*.properties|applicationContext-resources.xml|struts.xml|**/*.java], test=false, filtering=true, merging with=resource src/main/resources: output=target/classes, include=[applicationContext-resources.xml|struts.xml], exclude=[**/*.java], test=false, filtering=false
[INFO] ------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 10 seconds
[INFO] Finished at: Tue Jan 19 13:10:19 CST 2010
[INFO] Final Memory: 28M/50M
[INFO] ------------------------------------------------------------------------ 

在网上搜了一下，似乎是maven的2.7版本eclipse插件的问题，使用下面的命令可以解决此问题：

mvn org.apache.maven.plugins:maven-eclipse-plugin:2.6:eclipse 

上面的命令会调用maven eclipse插件的2.6版本来生成eclipse项目文件，可以build正常。

更多内容，请阅读Easwy的博客上的其它文章。

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