解决:Could not parse response code.Server Reply: SSH-2.0-OpenSSH_5.3
[摘要:办理:org.apache.commons.net.MalformedServerReplyException: Could not parse response code.Server Reply: SSH-2.0-OpenSSH_5.3 当应用org.apache.commons.net.ftp.]
解决:org.apache.commons.net.MalformedServerReplyException: Could not parse response code.Server Reply: SSH-2.0-OpenSSH_5.3
当使用org.apache.commons.net.ftp.FTPClient通过协议SSH2进行SFTP连接时报如上错误,原因是它不支持这种方式的连接(使用FTPSClient的SSL也是不行的)。
示例代码:
package com.jerval.test; import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List; import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; public class FtpFileList { private static final Logger LOG = LoggerFactory.getLogger(FtpFileList.class); public static void main(String[] args) {
printList();
} private static void printList() {
List<String> list = listFileNames("fca-vm-rds-prod1", "applog", "aaa", "/webapp/myrds1/lib");
for (String fileName:list) {
System.out.println(fileName);
}
} private static List<String> listFileNames(String host, String user, String password, String dir) {
List<String> list = new ArrayList<String>();
FTPClient ftpClient = new FTPClient();
try {
ftpClient.connect(host, 22);
int reply = ftpClient.getReplyCode();
if (FTPReply.isPositiveCompletion(reply)) {
ftpClient.login(user, password);
// ftpClient.changeWorkingDirectory(dir);
String[] names = ftpClient.listNames(dir);
list.addAll(Arrays.asList(names));
}
} catch (IOException e) {
LOG.error("ERROR!", e);
} finally {
close(ftpClient);
} return list;
} private static void close(FTPClient ftpClient) {
if (null != ftpClient && ftpClient.isConnected()) {
try {
ftpClient.logout();// 退出FTP服务器
} catch (IOException e) {
e.printStackTrace();
System.out.println("退出FTP服务器异常!");
System.out.println(e.getMessage());
} finally {
try {
ftpClient.disconnect();// 关闭FTP服务器的连接
System.out.println("退出并关闭FTP服务器的连接");
} catch (IOException e) {
e.printStackTrace();
System.out.println("关闭FTP服务器的连接异常!");
System.out.println(e.getMessage());
}
}
}
}
}
错误信息:
3 [main] ERROR com.jerval.test.FtpFileList - ERROR!
org.apache.commons.net.MalformedServerReplyException: Could not parse response code.
Server Reply: SSH-2.0-OpenSSH_5.3
at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:333)
at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:290)
at org.apache.commons.net.ftp.FTP._connectAction_(FTP.java:396)
at org.apache.commons.net.ftp.FTPClient._connectAction_(FTPClient.java:796)
at org.apache.commons.net.SocketClient.connect(SocketClient.java:172)
at org.apache.commons.net.SocketClient.connect(SocketClient.java:192)
at com.jerval.test.FtpFileList.listFileNames(FtpFileList.java:32)
at com.jerval.test.FtpFileList.printList(FtpFileList.java:22)
at com.jerval.test.FtpFileList.main(FtpFileList.java:18)
org.apache.commons.net.MalformedServerReplyException: Could not parse response code.
Server Reply: Protocol mismatch.
解决方法:
使用com.jcraft.jsch.JSch提供的SSH解决方法。代码如下:
package org.jerval.test.ftp; import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import java.util.Vector; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.ChannelSftp.LsEntry;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session; public class FtpsFileList {
private static final Logger LOG = LoggerFactory.getLogger(FtpsFileList.class); public static void main(String[] args) {
listFileNames("fca-vm-rds-prod1.xxx.org", 22, "applog", "xxx", "/webapp/myrds1/lib");
} private static List<String> listFileNames(String host, int port, String username, final String password, String dir) {
List<String> list = new ArrayList<String>();
ChannelSftp sftp = null;
Channel channel = null;
Session sshSession = null;
try {
JSch jsch = new JSch();
jsch.getSession(username, host, port);
sshSession = jsch.getSession(username, host, port);
sshSession.setPassword(password);
Properties sshConfig = new Properties();
sshConfig.put("StrictHostKeyChecking", "no");
sshSession.setConfig(sshConfig);
sshSession.connect();
LOG.debug("Session connected!");
channel = sshSession.openChannel("sftp");
channel.connect();
LOG.debug("Channel connected!");
sftp = (ChannelSftp) channel;
Vector<?> vector = sftp.ls(dir);
for (Object item:vector) {
LsEntry entry = (LsEntry) item;
System.out.println(entry.getFilename());
}
} catch (Exception e) {
e.printStackTrace();
} finally {
closeChannel(sftp);
closeChannel(channel);
closeSession(sshSession);
}
return list;
} private static void closeChannel(Channel channel) {
if (channel != null) {
if (channel.isConnected()) {
channel.disconnect();
}
}
} private static void closeSession(Session session) {
if (session != null) {
if (session.isConnected()) {
session.disconnect();
}
}
}
}
Maven依赖:
<dependency>
<groupId>com.jcraft</groupId>
<artifactId>jsch</artifactId>
<version>0.1.49</version>
</dependency>
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