JAVA实现SSH链接，程序化查询VPS状态

前段时间比较无聊，一下子入手了很多台VPS，现在突然觉得管理维护起来好麻烦，作为程序猿，麻烦的事情相信程序能搞定，SO，简单调查了下。

主要的实现，当然是OpenSource的 http://www.jcraft.com/jsch/

这套工具非常强大，差异于我居然以前使用过他的JZlib

源代码可以直接下载

http://sourceforge.net/projects/jsch/files/jsch/0.1.54/jsch-0.1.54.zip/download

我这边的调用代码

	public String remoteDskInfo(String strUser, String strPass, String strHost, int intPort)
			throws JSchException, IOException {
		String strResult = "";
		JSch js = new JSch();
		BufferedReader reader;
		String line;
		Session s = js.getSession(strUser, strHost, intPort);
		s.setPassword(strPass);
		Properties config = new Properties();
		config.put("StrictHostKeyChecking", "no");
		s.setConfig(config);
		s.connect();
		Channel c = s.openChannel("exec");
		ChannelExec ce;
		ce = (ChannelExec) c;
		ce.setCommand("df -h");
		ce.setErrStream(System.err);
		ce.connect();
		//Output
		reader = new BufferedReader(new InputStreamReader(ce.getInputStream()));
		while ((line = reader.readLine()) != null) {
			strResult = strResult + line + "\r\n";
		}
		ce.disconnect();
		s.disconnect();
		//System.out.println("Exit code: " + ce.getExitStatus());
		return strResult;

	}

调用执行的结果

              total        used        free      shared  buff/cache   available
Mem:         524288      139036      200884       33684      184368      247868
Swap:        524288      204440      319848
Filesystem         Size  Used Avail Use% Mounted on
/dev/ploop19812p1  9.8G  2.4G  6.9G  26% /
devtmpfs           256M     0  256M   0% /dev
tmpfs              256M     0  256M   0% /dev/shm
tmpfs              256M  132K  256M   1% /run
tmpfs              256M     0  256M   0% /sys/fs/cgroup
tmpfs               52M     0   52M   0% /run/user/0