Storm本地啟動拓撲報錯：Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/storm/topology/IRichSpout

問題描述：

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/storm/topology/IRichSpout
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:123)
Caused by: java.lang.ClassNotFoundException: org.apache.storm.topology.IRichSpout
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 3 more

原因：

pom.xml中的依賴配置錯誤

解決方案：

<dependency>
   <groupId>org.apache.storm</groupId>
   <artifactId>storm-core</artifactId>
   <version>1.2.3</version>
   <scope>provided</scope>
</dependency>

本地運行時將<scope>provided</scope>去掉即可（打包時再加上）