JSch 0.1.53 session.connect() 抛出“IO 流读取结束”

Question

我下载了新的 JSch 0.1.53 库，JSch (sftp) 下载任务不再有效。此版本在 session.connect() 函数上失败并抛出错误 Session.connect: java.io.IOException: End of IO Stream Read 。

我的旧 jsch.jar(2011-10-06) 在同一台主机上工作正常，也许我缺少新的配置道具？

 Session session=null;
ChannelSftp channel=null;
try {
    JSch.setLogger(SSHUtil.createJschLogger());

    JSch jsch=new JSch();
    session=jsch.getSession("myuser", "11.22.33.44", 22);
    session.setConfig("StrictHostKeyChecking", "no");
    session.setPassword("mypwd");
    session.connect(2000); // <-- FAILS HERE
    channel = (ChannelSftp)session.openChannel("sftp");
    channel.connect(2000);
    ...

这是一个广泛的 JSch 日志记录，指示发生了什么。

 INFO : Connecting to 11.22.33.44 port 22
INFO : Connection established
INFO : Remote version string: SSH-2.0-OpenSSH_6.6.1
INFO : Local version string: SSH-2.0-JSCH-0.1.53
INFO : CheckCiphers: aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256
INFO : aes256-ctr is not available.
INFO : aes192-ctr is not available.
INFO : aes256-cbc is not available.
INFO : aes192-cbc is not available.
INFO : CheckKexes: diffie-hellman-group14-sha1,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521
INFO : diffie-hellman-group14-sha1 is not available.
INFO : ecdh-sha2-nistp256 is not available.
INFO : ecdh-sha2-nistp384 is not available.
INFO : ecdh-sha2-nistp521 is not available.
INFO : CheckSignatures: ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
INFO : ecdsa-sha2-nistp256 is not available.
INFO : ecdsa-sha2-nistp384 is not available.
INFO : ecdsa-sha2-nistp521 is not available.
INFO : SSH_MSG_KEXINIT sent
INFO : SSH_MSG_KEXINIT received
INFO : kex: server: [e-mail],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
INFO : kex: server: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519
INFO : kex: server: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[e-mail],[e-mail],[e-mail],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[e-mail]
INFO : kex: server: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[e-mail],[e-mail],[e-mail],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[e-mail]
INFO : kex: server: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-md5,hmac-sha1,[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[e-mail],hmac-sha1-96,hmac-md5-96
INFO : kex: server: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-md5,hmac-sha1,[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[e-mail],hmac-sha1-96,hmac-md5-96
INFO : kex: server: none,[e-mail]
INFO : kex: server: none,[e-mail]
INFO : kex: server:
INFO : kex: server:
INFO : kex: client: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
INFO : kex: client: ssh-rsa,ssh-dss
INFO : kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO : kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO : kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO : kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO : kex: client: none
INFO : kex: client: none
INFO : kex: client:
INFO : kex: client:
INFO : kex: server->client aes128-ctr hmac-md5 none
INFO : kex: client->server aes128-ctr hmac-md5 none
INFO : SSH_MSG_KEX_DH_GEX_REQUEST(1024<1024<1024) sent
INFO : expecting SSH_MSG_KEX_DH_GEX_GROUP
INFO : Disconnecting from 11.22.33.44 port 22
Exception in thread "main" com.jcraft.jsch.JSchException: Session.connect: java.io.IOException: End of IO Stream Read
        at com.jcraft.jsch.Session.connect(Session.java:558)
        at com.jcraft.jsch.Session.connect(Session.java:183)
        at my.test.DownloadSFTP.main(DownloadSFTP.java:37)
Caused by: java.io.IOException: End of IO Stream Read
        at com.jcraft.jsch.IO.getByte(IO.java:84)
        at com.jcraft.jsch.Session.read(Session.java:918)
        at com.jcraft.jsch.Session.connect(Session.java:323)

我还有一个非常旧的 Jsch.jar (2011-10-06)，下载任务工作正常，这是一个日志。我想升级的一个原因是传输文件的速度非常慢。我读过的新版本应该做得更好。

 INFO : Connecting to 11.22.33.44 port 22
INFO : Connection established
INFO : Remote version string: SSH-2.0-OpenSSH_6.6.1
INFO : Local version string: SSH-2.0-JSCH-0.1.44
INFO : CheckCiphers: aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256
INFO : aes256-ctr is not available.
INFO : aes192-ctr is not available.
INFO : aes256-cbc is not available.
INFO : aes192-cbc is not available.
INFO : arcfour256 is not available.
INFO : SSH_MSG_KEXINIT sent
INFO : SSH_MSG_KEXINIT received
INFO : kex: server->client aes128-ctr hmac-md5 none
INFO : kex: client->server aes128-ctr hmac-md5 none
INFO : SSH_MSG_KEXDH_INIT sent
INFO : expecting SSH_MSG_KEXDH_REPLY
INFO : ssh_rsa_verify: signature true
WARN : Permanently added '11.22.33.44' (RSA) to the list of known hosts.
INFO : SSH_MSG_NEWKEYS sent
INFO : SSH_MSG_NEWKEYS received
INFO : SSH_MSG_SERVICE_REQUEST sent
INFO : SSH_MSG_SERVICE_ACCEPT received
INFO : Authentications that can continue: publickey,keyboard-interactive,password
INFO : Next authentication method: publickey
INFO : Authentications that can continue: keyboard-interactive,password
INFO : Next authentication method: keyboard-interactive
INFO : Authentication succeeded (keyboard-interactive).
INFO : Disconnecting from 11.22.33.44 port 22
INFO : Caught an exception, leaving main loop due to socket closed

编辑 我有一个想法在 Maven 存储库 中回溯发布，实际上这是这个非常新的版本无法正常工作。以前的 jsch-0.1.52.jar 版本工作正常。我尝试联系图书馆开发人员。

这是工作 0.1.52 版本的日志。

 INFO : Connecting to 11.22.33.44 port 22
INFO : Connection established
INFO : Remote version string: SSH-2.0-OpenSSH_6.6.1
INFO : Local version string: SSH-2.0-JSCH-0.1.52
INFO : CheckCiphers: aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256
INFO : aes256-ctr is not available.
INFO : aes192-ctr is not available.
INFO : aes256-cbc is not available.
INFO : aes192-cbc is not available.
INFO : CheckKexes: diffie-hellman-group14-sha1,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521
INFO : diffie-hellman-group14-sha1 is not available.
INFO : ecdh-sha2-nistp256 is not available.
INFO : ecdh-sha2-nistp384 is not available.
INFO : ecdh-sha2-nistp521 is not available.
INFO : CheckSignatures: ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
INFO : ecdsa-sha2-nistp256 is not available.
INFO : ecdsa-sha2-nistp384 is not available.
INFO : ecdsa-sha2-nistp521 is not available.
INFO : SSH_MSG_KEXINIT sent
INFO : SSH_MSG_KEXINIT received
INFO : kex: server: [e-mail],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
INFO : kex: server: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ssh-ed25519
INFO : kex: server: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[e-mail],[e-mail],[e-mail],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[e-mail]
INFO : kex: server: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,[e-mail],[e-mail],[e-mail],aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[e-mail]
INFO : kex: server: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-md5,hmac-sha1,[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[e-mail],hmac-sha1-96,hmac-md5-96
INFO : kex: server: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-md5,hmac-sha1,[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,[e-mail],hmac-sha1-96,hmac-md5-96
INFO : kex: server: none,[e-mail]
INFO : kex: server: none,[e-mail]
INFO : kex: server:
INFO : kex: server:
INFO : kex: client: diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchange-sha256
INFO : kex: client: ssh-rsa,ssh-dss
INFO : kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO : kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO : kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO : kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO : kex: client: none
INFO : kex: client: none
INFO : kex: client:
INFO : kex: client:
INFO : kex: server->client aes128-ctr hmac-md5 none
INFO : kex: client->server aes128-ctr hmac-md5 none
INFO : SSH_MSG_KEXDH_INIT sent
INFO : expecting SSH_MSG_KEXDH_REPLY
INFO : ssh_rsa_verify: signature true
WARN : Permanently added '11.22.33.44' (RSA) to the list of known hosts.
INFO : SSH_MSG_NEWKEYS sent
INFO : SSH_MSG_NEWKEYS received
INFO : SSH_MSG_SERVICE_REQUEST sent
INFO : SSH_MSG_SERVICE_ACCEPT received
INFO : Authentications that can continue: publickey,keyboard-interactive,password
INFO : Next authentication method: publickey
INFO : Authentications that can continue: keyboard-interactive,password
INFO : Next authentication method: keyboard-interactive
INFO : Authentication succeeded (keyboard-interactive).

原文由 Whome 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

JSch 0.1.53 支持（并且更喜欢） diffie-hellman-group-exchange-sha256 KEX，服务器声称也支持，因此 JSch 尝试使用它。

由于某种原因，服务器之后会断开你的连接。

要解决这个问题，强制 JSch 使用 diffie-hellman-group1-sha1 KEX，JSch 0.1.52 更喜欢：

 session.setConfig("kex", "diffie-hellman-group1-sha1");

原文由 Martin Prikryl 发布，翻译遵循 CC BY-SA 3.0 许可协议

Answer 2

我遇到了同样的问题，我只是将 jsch 版本更改为 0.1.54 并得到解决

将此添加到您的 pom.xml

 <dependency>
   <groupId>com.jcraft</groupId>
   <artifactId>jsch</artifactId>
   <version>0.1.54</version>
</dependency>

原文由 pooja patil 发布，翻译遵循 CC BY-SA 3.0 许可协议