java语言中实现文件传输的依赖：代码示例：运行

package com.xxx.ssh2;
import java.io.InputStream;
import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.SCPClient;
import ch.ethz.ssh2.Session;
public class SSH2App {
	private static final String host = "192.168.56.202";
	private static final String username = "root";
	private static final String password="root";
	private static final Connection conn = new Connection(host);
	
	private static boolean isAuthed(){
		try {
			return conn.authenticateWithPassword(username, password);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return false;
	}
	
	public static void putFile(String localFile,String remoteTargetDirectory){
		try {
			conn.connect();
			if(isAuthed()){
				SCPClient scpClient = conn.createSCPClient();
				scpClient.put(localFile, remoteTargetDirectory);
				System.out.println("upload file successfully.");
			}else{
				System.out.println("authentication fail.");
			}
		} catch (Exception e) {
			e.printStackTrace();
		}finally{
			conn.close();
		}
	}
	
	public static void exec(String command){
		try {
			conn.connect();
			if(isAuthed()){
				Session session = conn.openSession();
				session.execCommand(command);
				InputStream input = session.getStdout();
				byte[] data = new byte[1024];
				input.read(data);
				String result = new String(data,0,data.length);
				System.out.println(result);
			}else{
				System.out.println("authentication fail.");
			}
		} catch (Exception e) {
			e.printStackTrace();
		}finally{
			conn.close();
		}
	}
	
	public static void main(String[] args) {
		putFile("C:\Users\Administrator\Downloads\json.png", "/root/upload/");
		exec("ls /root/upload");
	}
}