Exception in thread "main" java.lang.UnsupportedClassVersionError: kafka/Kafka :

kafaka启动时报错日志

Exception in thread "main" java.lang.UnsupportedClassVersionError: kafka/Kafka :
 Unsupported major.minor version 52.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:14
2)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
        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)
        at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)


D:\javaRJ\kafka_2.12-1.1.1>

解决:出现52.0这是因为与jdk的版本不一致,我们需要改我们的系统的jdk的环境变量为1.8的,我前面是1.7,但改为1.8后,再运行kafaka就可以了.不过记得更改jdk的环境变量后,记得zookeeper也记得要重启.