[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] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/NoGoalSpecifiedException Build step 'Invoke top-level Maven targets' marked build as failure Finished: FAILURE
1.只要在pom文件中增加一行<defaultGoal>compile</defaultGoal>就行啦！
2.項目pom文件要放在jenkins的workspace下
3.pom文件中的標簽scope，scope為依賴范圍，若依賴范圍為test，則某個jar包只對測試有效。換句話說，測試代碼中import JUnit是有效的，但是在主代碼中import JUnit是無法通過編譯的；如果不聲明范圍的話，就是默認compile；
4.在maven執行測試之前，maven會自動執行項目主資源處理、主代碼編譯、測試資源處理、測試代碼編譯；