SmallFileSeq执行报错

按照老师的代码执行报错如下：

"C:\Program Files\Java\jdk1.8.0_301\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2021.3.1\lib\idea_rt.jar=59152:C:\Program Files\JetBrains\IntelliJ IDEA 2021.3.1\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_301\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_301\jre\lib\rt.jar;C:\Users\weilei\IdeaProjects\db_hadoop\target\classes;C:\Users\weilei\.m2\repository\com\google\code\findbugs\jsr305\3.0.0\jsr305-3.0.0.jar;C:\Users\weilei\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.5\jackson-annotations-2.9.5.jar;C:\Users\weilei\.m2\repository\log4j\log4j\1.2.17\log4j-1.2.17.jar;C:\Users\weilei\.m2\repository\org\apache\hadoop\hadoop-hdfs\3.2.0\hadoop-hdfs-3.2.0.jar;C:\Users\weilei\.m2\repository\com\google\guava\guava\11.0.2\guava-11.0.2.jar;C:\Users\weilei\.m2\repository\org\eclipse\jetty\jetty-server\9.3.24.v20180605\jetty-server-9.3.24.v20180605.jar;C:\Users\weilei\.m2\repository\org\eclipse\jetty\jetty-http\9.3.24.v20180605\jetty-http-9.3.24.v20180605.jar;C:\Users\weilei\.m2\repository\org\eclipse\jetty\jetty-io\9.3.24.v20180605\jetty-io-9.3.24.v20180605.jar;C:\Users\weilei\.m2\repository\org\eclipse\jetty\jetty-util\9.3.24.v20180605\jetty-util-9.3.24.v20180605.jar;C:\Users\weilei\.m2\repository\org\eclipse\jetty\jetty-util-ajax\9.3.24.v20180605\jetty-util-ajax-9.3.24.v20180605.jar;C:\Users\weilei\.m2\repository\com\sun\jersey\jersey-core\1.19\jersey-core-1.19.jar;C:\Users\weilei\.m2\repository\javax\ws\rs\jsr311-api\1.1.1\jsr311-api-1.1.1.jar;C:\Users\weilei\.m2\repository\com\sun\jersey\jersey-server\1.19\jersey-server-1.19.jar;C:\Users\weilei\.m2\repository\commons-cli\commons-cli\1.2\commons-cli-1.2.jar;C:\Users\weilei\.m2\repository\commons-codec\commons-codec\1.11\commons-codec-1.11.jar;C:\Users\weilei\.m2\repository\commons-io\commons-io\2.5\commons-io-2.5.jar;C:\Users\weilei\.m2\repository\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar;C:\Users\weilei\.m2\repository\commons-daemon\commons-daemon\1.0.13\commons-daemon-1.0.13.jar;C:\Users\weilei\.m2\repository\com\google\protobuf\protobuf-java\2.5.0\protobuf-java-2.5.0.jar;C:\Users\weilei\.m2\repository\javax\servlet\javax.servlet-api\3.1.0\javax.servlet-api-3.1.0.jar;C:\Users\weilei\.m2\repository\io\netty\netty\3.10.5.Final\netty-3.10.5.Final.jar;C:\Users\weilei\.m2\repository\io\netty\netty-all\4.0.52.Final\netty-all-4.0.52.Final.jar;C:\Users\weilei\.m2\repository\org\apache\htrace\htrace-core4\4.1.0-incubating\htrace-core4-4.1.0-incubating.jar;C:\Users\weilei\.m2\repository\org\fusesource\leveldbjni\leveldbjni-all\1.8\leveldbjni-all-1.8.jar;C:\Users\weilei\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.9.5\jackson-databind-2.9.5.jar;C:\Users\weilei\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.9.5\jackson-core-2.9.5.jar" com.imooc.mr.SmallFileSeq

Error: A JNI error has occurred, please check your installation and try again

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/io/Writable

at java.lang.Class.getDeclaredMethods0(Native Method)

at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)

at java.lang.Class.privateGetMethodRecursive(Class.java:3048)

at java.lang.Class.getMethod0(Class.java:3018)

at java.lang.Class.getMethod(Class.java:1784)

at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:650)

at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:632)

Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.io.Writable

at java.net.URLClassLoader.findClass(URLClassLoader.java:382)

at java.lang.ClassLoader.loadClass(ClassLoader.java:418)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)

at java.lang.ClassLoader.loadClass(ClassLoader.java:351)

... 7 more