java类是编译但不能在debian中运行

时间:2014-12-26 14:11:59

标签: java exception jar noclassdeffounderror

我有下一个问题。我在Windows中使用MinGW。这里java很棒。我试图在debian中运行java程序并得到不可预知的结果。这是我的代码:

import java.io.IOException;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
public class FTPConnectAndLoginDemo {

    public static void main(String[] args) {
        String server = "192.168.253.130";
        int port = 21;
        String user = "ovod88";
        String pass = "taon88";
        FTPClient ftpClient = new FTPClient();
        try {
            ftpClient.connect(server, port);
            showServerReply(ftpClient);
            // int replyCode = ftpClient.getReplyCode();
            // if (!FTPReply.isPositiveCompletion(replyCode)) {
            //     System.out.println("Operation failed. Server reply code: " + replyCode);
            //     return;
            // }
            // boolean success = ftpClient.login(user, pass);
            // showServerReply(ftpClient);
            // if (!success) {
            //     System.out.println("Could not login to the server");
            //     return;
            // } else {
            //     System.out.println("LOGGED IN SERVER");
            // }
    } catch (IOException ex) {
            System.out.println("Oops! Something wrong happened");
            ex.printStackTrace();
        }
    }

    private static void showServerReply(FTPClient ftpClient) {
        String[] replies = ftpClient.getReplyStrings();
        if (replies != null && replies.length > 0) {
            for (String aReply : replies) {
                System.out.println("SERVER: " + aReply);
            }
        }
    }            
}

这个程序编译成这样(需要jar在我的主目录中):

javac -cp /home/ovod88/commons-net-3.1.jar FTPConnectAndLoginDemo.java

但它没有运行((我在这个站点和许多其他解决方案中找到了,比如添加-classpath。或-cp。来运行命令,如:

java -cp /home/ovod88/commons-net-3.1.jar FTPConnectAndLoginDemo

java -cp . FTPConnectAndLoginDemo

java -classpath .  FTPConnectAndLoginDemo

无效(((它的组合也没有用)((错误是:

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/net/ftp/FTPClient
        at FTPConnectAndLoginDemo.main(FTPConnectAndLoginDemo.java:11)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.net.ftp.FTPClient
        at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
        ... 1 more

0 个答案:

没有答案