修改Windows和linux系统时间

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1、修改本机Windows的系统时间，Java代码实现：

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;public class ChangeWindowsDate { /**
* @param args
* @throws IOException
*/
public static void main(String[] args) {
try {
Runtime.getRuntime().exec("cmd /c date 2013-11-08") ;
Runtime.getRuntime().exec("cmd /c time 18:10:00") ;
} catch (IOException e) {
e.printStackTrace() ;
}
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss") ;
Date date = new Date() ;
System.out.println(sdf.format(date)); }}

2、修改远程Linux Server的系统时间，Java代码实现：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.Session;
import ch.ethz.ssh2.StreamGobbler;public class ChangeLinuxDate { /**
* @param args
*/
public static void main(String[] args) {
String host_ip1 = "192.168.1.118" ;
int port = 22 ;
String username = "root" ;
String password = "123456" ; String cmd = "date -s '2013-08-04 23:00:00'" ; Connection conn1 = new Connection(host_ip1, port) ;
Session session1 = null ; try {
conn1.connect() ;
boolean isconn = conn1.authenticateWithPassword(username, password) ;
if(!isconn){
System.out.println("用户名称或者是密码不正确");
}else{
System.out.println(host_ip1 + ":" + "已经连接OK");
session1 = conn1.openSession() ;
session1.execCommand(cmd) ; InputStream is = new StreamGobbler(session1.getStdout());
BufferedReader brs = new BufferedReader(new InputStreamReader(is));
while(true){
String line = brs.readLine();
if(line==null){
break;
}
System.out.println(line);
}
is.close() ;
brs.close() ;
session1.close() ;
conn1.close() ;
} } catch (IOException e) {
e.printStackTrace() ;
} }}