jsch通过SSH2执行linux命令

public class SSHUtils { ???private Channel channel; ???private Session session = null; ???private int timeout = 60000; ???public SSHUtils(final String ipAddress, final String username, final String password) throws Exception { ???????JSch jsch = new JSch(); ???????this.session = jsch.getSession(username, ipAddress, 22); ???????this.session.setPassword(password); ???????this.session.setConfig("StrictHostKeyChecking", "no"); ???????this.session.setTimeout(this.timeout); ???????this.session.connect(); ???????this.channel = this.session.openChannel("shell"); ???????this.channel.connect(1000); ???} ???public String runShell(String cmd, String charset) throws Exception { ???????String temp = null; ???????InputStream instream = null; ???????OutputStream outstream = null; ???????try { ???????????instream = this.channel.getInputStream(); ???????????outstream = this.channel.getOutputStream(); ???????????outstream.write(cmd.getBytes()); ???????????outstream.flush(); ???????????Thread.sleep(2000); ???????????if (instream.available() > 0) { ???????????????byte[] data = new byte[instream.available()]; ???????????????int nLen = instream.read(data); ???????????????if (nLen < 0) { ???????????????????throw new Exception("network error."); ???????????????} ???????????????temp = new String(data, 0, nLen, "UTF-8"); ???????????} ???????} ?finally { ???????????outstream.close(); ???????????instream.close(); ???????} ???????return temp; ???} ???public void close() { ???????this.channel.disconnect(); ???????this.session.disconnect(); ???} ???public static void main(final String[] args) throws Exception { ???????SSHUtils sshUtil = new SSHUtils("10.5.31.157", "root", "codyy#123456"); ???????String res = sshUtil.runShell("/usr/local/baseframe/server.sh start ConfigServer-1.0.0.jar\n", "utf-8"); ???????System.out.println(res); ???????sshUtil.close(); ???}}