一：window下执行cmd指定
程序例子：
/*该方法实现文件自动复制功能。利用系统命令将指定文件名从源路径复制到目的路径
* 如果目的路径不存在时，自动创建目的路径
* */
public static boolean copyFile(String origpath, String destpath, String filename) throws Exception{
String osName = System.getProperty("os.name");
boolean flag = false;
/*系统命令支持的操作系统Windows XP, 2000 2003 7*/
if(!(osName.equalsIgnoreCase("windows XP") || osName.equalsIgnoreCase("windows 2000") || osName.equalsIgnoreCase("windows 2003") || osName.equalsIgnoreCase("windows 7"))){
return flag;
}
Runtime rt = Runtime.getRuntime();
Process p = null;
File f = new File(destpath);
if(!f.exists()){
f.mkdirs();
}
int exitVal;
p = rt.exec("cmd exe /c copy " + origpath+filename+" "+destpath);
// 进程的出口值。根据惯例，0 表示正常终止。
exitVal = p.waitFor();
if(exitVal == 0){
flag = true;
}else{
flag = false;
}
return flag;
}
public static void main(String[] args) {
try {
copyFile("D:\\DATA\\", "D:\\a\\", "131204.txt");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
二：linux下执行shell命令
程序例子：
package edu.test;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
/**
* java在linux环境下执行linux命令，然后返回命令返回值。
* @author lee
*/
public class ExecLinuxCMD {
public static Object exec(String cmd) {
try {
String[] cmdA = { "/bin/sh", "-c", cmd };
Process process = Runtime.getRuntime().exec(cmdA);
LineNumberReader br = new LineNumberReader(new InputStreamReader(
process.getInputStream()));
StringBuffer sb = new StringBuffer();
String line;
while ((line = br.readLine()) != null) {
System.out.println(line);
sb.append(line).append("\n");
}
return sb.toString();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static void main(String[] args) {
// TODO Auto-generated method stub
String pwdString = exec("pwd").toString();
String netsString = exec("netstat -nat|grep -i \"80\"|wc -l").toString();
System.out.println("==========获得值=============");
System.out.println(pwdString);
System.out.println(netsString);
}
}
执行结果：
