java - 使用Maven构建storm-starter

Question

我按照storm-starter中的步骤进行操作，并尝试使用命令“mvncompileexec:java -Dstorm.topology=storm.starter.WordCountTopology”从storm-starter构建一个项目。但出现了以下错误。谁能告诉我为什么会发生这种情况以及我需要做什么来解决这个问题？

[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.017 s
[INFO] Finished at: 2014-05-26T11:23:54-06:00
[INFO] Final Memory: 20M/159M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.3:java (default-cli) on project storm: The parameters 'mainClass' for goal org.codehaus.mojo:exec-maven-plugin:1.3:java are missing or invalid -> [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/PluginParameterException

Answer 1

我也遇到了同样的问题。经过一番尝试和错误后，这行得通:

mvn -X compile exec:java -Dstorm.topology=storm.starter.WordCountTopology -Dexec.mainClass="WordCountTopology"