java - sshj 0.9.0 抛出 NoClassDefFoundError : net/schmizz/sshj/SSHClient

Question

我下面的代码抛出以下错误，我只能在 Google 上找到涉及日志记录错误的信息，但没有任何内容看起来像我的。我已经尝试安装中央 Maven 存储库所需的依赖项，但问题仍然存在。有谁知道为什么我上课没有发现异常？

import java.io.IOException;
import java.util.concurrent.TimeUnit;

import net.schmizz.sshj.SSHClient;
import net.schmizz.sshj.common.IOUtils;
import net.schmizz.sshj.connection.channel.direct.Session;
import net.schmizz.sshj.connection.channel.direct.Session.Command;

public class ConnectSSH {

public void connecting() throws IOException {

    @SuppressWarnings("resource")
    final SSHClient ssh = new SSHClient();

    ssh.loadKnownHosts();
    ssh.connect("*******");

    try {
        ssh.authPassword("*****", "*****");
        final Session session = ssh.startSession();
        try {
            final Command cmd = session.exec("*****");
            System.out.print(IOUtils.readFully(cmd.getInputStream()));
            cmd.join(5, TimeUnit.SECONDS);
            System.out.print("\n** exit status: " + cmd.getExitStatus());
        } finally {
            session.close();
        }
    } finally {
        ssh.disconnect();

    }

}

}

<小时/>

运行时抛出以下错误:

Exception in thread "main" java.lang.NoClassDefFoundError: net/schmizz/sshj/SSHClient
    at ssh.liq_con.stats.ConnectSSH.connecting(ConnectSSH.java:16)
    at ssh.liq_con.stats.App.main(App.java:8)
Caused by: java.lang.ClassNotFoundException: net.schmizz.sshj.SSHClient
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 2 more

<小时/>

注意我有:

<dependency>
            <groupId>net.schmizz</groupId>
            <artifactId>sshj</artifactId>
            <version>0.9.0</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.5</version>
        </dependency>
        <dependency>
            <groupId>org.apache.sshd</groupId>
            <artifactId>sshd-core</artifactId>
            <version>0.9.0</version>
        </dependency>
        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcpkix-jdk15on</artifactId>
            <version>1.49</version>
        </dependency>
        <dependency>
            <groupId>com.jcraft</groupId>
            <artifactId>jzlib</artifactId>
            <version>1.1.3</version>
        </dependency>

Answer 1

您实际上不需要安装依赖项 - 它们是由 Maven 自动获取的。这可能是您的类路径的问题，您可以尝试添加为 public static void main(String[]):

的第一行

System.out.println(System.getProperty("java.class.path"));

确保类路径中有 sshj-0.9.0.jar。