使用java连接到SFTP

问题描述

我需要帮助连接到SFTP服务器？有没有人有工作代码？

I need help with connection to SFTP server? Does anybody have working code?

我发现这样的东西

package test.JSch;

import com.jcraft.jsch.*;

public class TestJSch {
public static void main(String args[]) {
    JSch jsch = new JSch();
    Session session = null;
    try {
        session = jsch.getSession("USSERNAME", "HOST", 22);
        //session.setConfig("StrictHostKeyChecking", "no");
        session.setPassword("PASSWORD");
        System.out.println("1");
        session.connect();
        System.out.println("2");

        Channel channel = session.openChannel("sftp");
        System.out.println("3");
        channel.connect();
        System.out.println("4");
        ChannelSftp sftpChannel = (ChannelSftp) channel;
        sftpChannel.get("remotefile.txt", "localfile.txt");
        sftpChannel.exit();
        session.disconnect();
    } catch (JSchException e) {
        e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
    } catch (SftpException e) {
        e.printStackTrace();
    }
    }
}

但这是输出

com.jcraft.jsch.JSchException: java.net.ConnectException: Connection timed out: connect
    at com.jcraft.jsch.Util.createSocket(Util.java:258)
    at com.jcraft.jsch.Session.connect(Session.java:186)
    at com.jcraft.jsch.Session.connect(Session.java:145)
    at test.JSch.TestJSch.main(TestJSch.java:17)
Caused by: java.net.ConnectException: Connection timed out: connect
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.PlainSocketImpl.doConnect(Unknown Source)
    at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
    at java.net.PlainSocketImpl.connect(Unknown Source)
    at java.net.SocksSocketImpl.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at java.net.Socket.<init>(Unknown Source)
    at java.net.Socket.<init>(Unknown Source)
    at com.jcraft.jsch.Util.createSocket(Util.java:252)
    ... 3 more

此代码有什么问题？

推荐答案

你可以尝试增加Jsch Framework的超时。

You can try increasing the timeout on Jsch Framework.

session.connect(int Timeout)

session.connect(30000);

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