package RemoteShell;
import java.io.*;
import java.nio.charset.Charset;
import org.apache.commons.io.IOUtils;
import ch.ethz.ssh2.ChannelCondition;
import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.Session;
import ch.ethz.ssh2.StreamGobbler;
* Created by Chant on 2017/5/27.
* 远程调用脚本重启服务
*/
public class RemoteShellExecutor {
private Connection conn;
private String ip;
private String osUsername;
private String password;
private String charset = Charset.defaultCharset().toString();
private static final int TIME_OUT = 1000 * 5 * 60;
* 构造函数
* @param ip
* @param usr
* @param pasword
*/
public RemoteShellExecutor(String ip, String usr, String pasword) {
this.ip = ip;
this.osUsername = usr;
this.password = pasword;
}
* 登录
* @return
* @throws IOException
*/
private boolean login() throws IOException {
conn = new Connection(ip);
conn.connect();
return conn.authenticateWithPassword(osUsername, password);
}
* 执行脚本
*
* @param cmds
* @return
* @throws Exception
*/
public int exec(String cmds) throws Exception {
InputStream stdOut = null;
InputStream stdErr = null;
String outStr = "";
String outErr = "";
int ret = -1;
try {
if (login()) {
Session session = conn.openSession();
session.execCommand(cmds);
stdOut = new StreamGobbler(session.getStdout());
outStr = processStream(stdOut, charset);
stdErr = new StreamGobbler(session.getStderr());
outErr = processStream(stdErr, charset);
session.waitForCondition(ChannelCondition.EXIT_STATUS, TIME_OUT);
System.out.println("outStr=" +"\n"+ outStr);
System.out.println("outErr=" +"\n"+ outErr);
ret = session.getExitStatus();
} else {
throw new Exception("登录远程机器失败" + ip);
}
} finally {
if (conn != null) {
conn.close();
}
IOUtils.closeQuietly(stdOut);
IOUtils.closeQuietly(stdErr);
}
return ret;
}
* @param in
* @param charset
* @return
* @throws IOException
* @throws UnsupportedEncodingException
*/
private String processStream(InputStream in, String charset)throws Exception {
StringBuilder sb = new StringBuilder();
BufferedReader bufr = new BufferedReader(new InputStreamReader(in,charset));
String line = null;
while((line = bufr.readLine()) != null){
sb.append(line);
sb.append("\n");
}
return sb.toString();
}
}