java实现sso java实现ssh登录某个地址

package com.cps.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import org.apache.commons.lang.StringUtils;
//import org.apache.commons.lang.StringUtils;
import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.Session;
import ch.ethz.ssh2.StreamGobbler;
public class MainCommand {
private static String DEFAULTCHART = "UTF-8";
public static Connection login(String ip, String username, String password) {
boolean flag = false;
Connection connection = null;
try {
connection = new Connection(ip);
connection.connect();// 连接
flag = connection.authenticateWithPassword(username, password);// 认证
if (flag) {
System.out.println("================登录成功==================");
return connection;
}
} catch (IOException e) {
System.out.println("=========登录失败=========" + e);
connection.close();
}
return connection;
}
/**
* 远程执行shll脚本或者命令
*
* @param cmd
* 即将执行的命令
* @return 命令执行完后返回的结果值
*/
public static String execmd(Connection connection, String cmd) {
String result = "";
try{
if (connection != null) {
Session session = connection.openSession();// 打开一个会话
session.execCommand(cmd);// 执行命令
result = processStdout(session.getStdout(), DEFAULTCHART);
System.out.println(result);
// 如果为得到标准输出为空，说明脚本执行出错了
if (StringUtils.isBlank(result)) {
System.out.println("得到标准输出为空,链接conn:" + connection + ",执行的命令：" + cmd);
result = processStdout(session.getStderr(), DEFAULTCHART);
} else {
System.out.println("执行命令成功,链接conn:" + connection + ",执行的命令：" + cmd);
}
connection.close();
session.close();
}
} catch (IOException e) {
System.out.println("执行命令失败,链接conn:" + connection + ",执行的命令：" + cmd + " " + e);
e.printStackTrace();
}
return result;
}
/**
* 解析脚本执行返回的结果集
*
* @param in
* 输入流对象
* @param charset
* 编码
* @return 以纯文本的格式返回
*/
private static String processStdout(InputStream in, String charset) {
InputStream stdout = new StreamGobbler(in);
StringBuffer buffer = new StringBuffer();
;
try {
BufferedReader br = new BufferedReader(new InputStreamReader(stdout, charset));
String line = null;
while ((line = br.readLine()) != null) {
buffer.append(line + "\n");
System.out.println(line);
}
br.close();
} catch (UnsupportedEncodingException e) {
System.out.println("解析脚本出错：" + e.getMessage());
e.printStackTrace();
} catch (IOException e) {
System.out.println("解析脚本出错：" + e.getMessage());
e.printStackTrace();
}
return buffer.toString();
}
public static void main(String[] args) {
long currentTimeMillis = System.currentTimeMillis();
String ip = "111.111.111.111";//change your ip
String username = "root";//user
String password = "****";//your server password
String cmd = "sh /huase/basic/app.sh 1212"; //sh and your command
Connection connection = login(ip, username, password);
String execmd = execmd(connection, cmd);
System.out.println("执行结果 "+execmd);
long currentTimeMillis1 = System.currentTimeMillis();
System.out.println("ganymed-ssh2方式"+(currentTimeMillis1-currentTimeMillis));
}
}