在跑storm-kafka的例子中，报出

java.lang.NoClassDefFoundError: storm/kafka/BrokerHosts

Exception in thread "main" java.lang.NoClassDefFoundError: storm/kafka/BrokerHosts
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2570)
    at java.lang.Class.getMethod0(Class.java:2813)
    at java.lang.Class.getMethod(Class.java:1663)
    at sun.launcher.LauncherHelper.getMainMethod(LauncherHelper.java:494)
    at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:486)
Caused by: java.lang.ClassNotFoundException: storm.kafka.BrokerHosts
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)

原因: Storm的Server端的lib包中缺少jar包
把maven本地库中的 storm-kafka-0.9.3.jar 复制到 $STORM_HOME/lib下

 

 

原因: Storm的Server端的lib包中缺少jar包
把maven本地库中的 kafka-clients-0.10.2.1.jar 复制到 $STORM_HOME/lib下

 

 

 

原文链接：https://www.jianshu.com/p/70c3a7f5638

                  https://blog.csdn.net/w1014074794/article/details/50938886