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当时下面的教程在这里:http://sparkjava.com/的ClassNotFoundException:在命令行中运行时spark.Request
我下载spark-core
然后编译这个类:
import static spark.Spark.*;
public class Main {
public static void main(String[] args) {
get("/hello", (req, res) -> "hello world");
}
}
$ javac -classpath ~/Downloads/spark-core-2.6.0.jar Main.java
和运行时:
$ java -cp "~/Downloads/spark-core-2.6.0.jar:." Main
Exception in thread "main" java.lang.BootstrapMethodError: java.lang.NoClassDefFoundError: spark/Request
at Main.main(Main.java:5)
Caused by: java.lang.NoClassDefFoundError: spark/Request
... 1 more
Caused by: java.lang.ClassNotFoundException: spark.Request
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 1 more
什么我做错了吗?
将类路径周围的引号留下:'$ java -cp〜/ Downloads/spark-core-2.6.0.jar :. Main'。但是它会抱怨缺少'org/slf4j/LoggerFactory',它确实会丢失,除非你下载它并将它包含在类路径中。 – cello
谢谢。这确实是报价! – Jas
@cello任何机会发布此作为答案,以便我可以接受它。谢谢。 – Jas