我目前有一个问题,实现jsch库来从ZyXel开关中获取信息。程序本身会抓取一些信息来确认交换机的类型,然后上传正确的固件和配置。使用jsch时缓冲区问题
我的问题,对我来说,似乎是一个缓冲区问题。我没有问题发送命令,但当我发送它时,根据我运行它的时间或频率,我要么获得一半的信息,我应该得到或全部。我认为这是因为有时缓冲区并不会全部进入ByteArrayInputStream中,而是在这个时候我处于迷路状态。我想知道是否有人可以指出我正确的方向对我的错误。我认为这是一个基本的InputStream或JSF文档问题误解
谢谢!..我的代码如下。
package ssh;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import com.jcraft.jsch.*;
public class ssh {
private static String user = "admin";
private static String host = "192.168.1.1";
private static String password = "1234";
private static String command = "";
public static void startAutomation() {
JSch jsch = new JSch();
Session session = null;
OutputStream output = null;
Channel channel = null;
try {
session = jsch.getSession(user,host,22);
session.setPassword(password);
session.setConfig("StrictHostKeyChecking","no");
session.connect();
channel = session.openChannel("shell");
command = "show system-information\n";
output = runCommand(command, session, channel);
String test = "NOTHING";
if (output.toString().contains("ES-2024A")) {
test = "true";
command = "show run\n";
output = runCommand(command,session,channel);
} else {
test = "false";
}
System.out.println(test + " This is a 2024A");
} catch (JSchException | InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
channel.disconnect();
session.disconnect();
}
}
public static OutputStream runCommand(String c,Session session,Channel channel) throws InterruptedException, JSchException{
InputStream is = new ByteArrayInputStream(c.getBytes());
channel.setInputStream(is);
OutputStream outputInfo = new ByteArrayOutputStream();
channel.setOutputStream(outputInfo);
channel.connect(15*1000);
try {
is.close();
outputInfo.flush();
outputInfo.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return outputInfo;
}
}