import java.io.*;
/**
 *  Java調用windows的DOS命令
 *  實現調用Windows的ipconfig命令，然后將輸出的信息通過IO流輸出到控制臺。
 */
public class RunWindowsCommand{
    public static void main(String[] args) {
        InputStream ins = null;
        String[] cmd = new String[] { "cmd.exe", "/C", "ipconfig" };  // 命令
        try {
            Process process = Runtime.getRuntime().exec(cmd);
            ins = process.getInputStream();  // 獲取執行cmd命令后的信息
            BufferedReader reader = new BufferedReader(new InputStreamReader(ins));  
            String line = null;  
            while ((line = reader.readLine()) != null) {  
                System.out.println(line);  // 輸出
            }
            int exitValue = process.waitFor();  
            System.out.println("返回值：" + exitValue); 
            process.getOutputStream().close();  // 不要忘記了一定要關
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}