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我在将文件从 VM 发送到另一台机器时遇到问题。就我而言，我可以在执行 java 文件时通过 SFTP 传输文件。

But when I am creating a .jar (executable) file and then trying to run that .jar (executable) file by using "java -jar filename.jar" 
then I am getting a exception.

平均 java 文件工作正常，文件也成功传输，但是当我创建 .jar 文件并通过 .jar 文件时出现异常

**Java Source Code**

package com.arcanainfo.whatsapp.reportSFTP;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPConnectionClosedException;

import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.SftpException;

public class WhatsappReport {
    public static void main(String[] args) throws IOException {
        System.out.println("flow start...");
        FTPClient client = new FTPClient();
        FileInputStream fis = null;
        boolean result;
        try {
            client.connect("IP");
            result = client.login("UserName", "Password");

            if (result == true) {
                System.out.println("Successfully logged in!");
            } else {
                System.out.println("Login Fail!");
                return;
            }
            File file = new File("C:\\eclipseWorkSpace\\test123.txt");
            String testName = file.getName();
            fis = new FileInputStream(file);

            // Upload file to the ftp server
            result = client.storeFile(testName, fis);

            if (result == true) {
                System.out.println("File is uploaded successfully");
            } else {
                System.out.println("File uploading failed");
            }
            client.logout();
            client.disconnect();
        } catch (FTPConnectionClosedException e) {
            System.out.println("FTPConnectionClosedException : ");
            e.printStackTrace();
        } finally {
            try {
                client.disconnect();
            } catch (FTPConnectionClosedException e) {
                System.out.println("FTPConnectionClosedException : "+e);
            }
        }
    }
}




**POM.xml**


<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>whatsapp_report_SFTP</groupId>
    <artifactId>whatsapp_report_SFTP</artifactId>
    <version>0.0.1</version>

    <dependencies>
        <!-- https://mvnrepository.com/artifact/com.jcraft/jsch -->
        <dependency>
            <groupId>com.jcraft</groupId>
            <artifactId>jsch</artifactId>
            <version>0.1.54</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/commons-net/commons-net -->
        <dependency>
            <groupId>commons-net</groupId>
            <artifactId>commons-net</artifactId>
            <version>3.6</version>
        </dependency>

    </dependencies>

    <build>
        <sourceDirectory>src</sourceDirectory>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.3</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>


            <!-- creating runable jar file -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                    <archive>
                        <manifest>
                            <addClasspath>true</addClasspath>
                            <mainClass>com.arcanainfo.whatsapp.reportSFTP.WhatsappReport</mainClass>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>

        </plugins>
    </build>
</project>





**ERROR**

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/net/ftp/FTPConnectionClosedException
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
        at java.lang.Class.getMethod0(Unknown Source)
        at java.lang.Class.getMethod(Unknown Source)
        at sun.launcher.LauncherHelper.validateMainClass(Unknown Source)
        at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.net.ftp.FTPConnectionClosedException
        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)
        ... 6 more

提前致谢

4

0 回答 0