Maven：No goals have been specified for this build

[INFO] Total time: 0.109s[INFO] Finished at: Wed Apr 13 11:04:20 CST 2011[INFO] Final Memory: 1M/4M[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-site, site, post-site, site-deploy,

pre-clean, clean, post-clean. -> [Help 1]

eclipse安装的maven插件是m2eclipse，在控制台使用命令mvn compile并未报错。后在pom.xml文件<build>标签后面加上<defaultGoal>compile</defaultGoal>即可。