How to write a string to a file located in remote server (linux)

问题

I was trying to build an small code where I want to create some string and transfer that string to a file (that should be created in runtime) located in remote server. In my case the remote server is Linux.

Can someone help me here? I was using a JSCH and ChannelSftp but unable to do the thing. Below is my code:

JSch jsch = new JSch();
session = jsch.getSession(SFTPUSER, MachineIP, SFTPPORT);
String str = "Hello";
session.setPassword(SFTPPASS);
System.out.println(SFTPPASS);
java.util.Properties config = new java.util.Properties();

System.out.println("Config done");
config.put("StrictHostKeyChecking", "no");
session.setConfig(config);
System.out.println("Config set");

session.connect();
System.out.println("Session connected");
channel = session.openChannel("sftp");
channel.connect();

System.out.println("Connection Opened\n");
channelSftp = (ChannelSftp) channel;
channelSftp.cd(SFTPWORKINGDIR);
File f=new File("Test.txt");
//unable to do anything beyond this.

Sorry if you find this stupid but I am very new to it.

回答1:

ChannelSftp has versions of the put method which accept a filename on the remote system and which return an OutputStream. Anything written to the OutputStream is written to the file on the remote system. You can write binary data to an OutputStream, or convert it to a Writer if you want to write text to it:

try (OutputStream out = channelSftp.put("/some/remote/file")) {
    OutputStreamWriter writer = new OutputStreamWriter(out);
    writer.write("some text");
} catch (IOException e) {
    ....
}

回答2:

@Kenster answer doesn't work for me (get a 0 bytes file), so I gets another solution:

String content = "some text";
InputStream stream = new ByteArrayInputStream (content.getBytes ());

sftpChannel.put (stream, "/some/remote/file");

Hope it'll help somebody...

来源：https://stackoverflow.com/questions/40590372/how-to-write-a-string-to-a-file-located-in-remote-server-linux

标签

java

jsch