try {
Runtime r = Runtime.getRuntime();
Process p = r.exec("cmd /c start exp ：ORCL file=d://t.dmp");
// 如果不加這幾句，資料沒有匯出完畢，就返回值。
BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
String lines = null;
while ((lines = br.readLine()) != null) {

}
p.waitFor();
p.destroy();
} catch (Exception e) {
e.printStackTrace();
}

解決Java呼叫dmp批處理不彈出cmd執行黑框

　　Runtime.getRuntime().exec("cmd /c start XXX.bat");

　　Runtime.getRuntime().exec("cmd /c start /b XXX.bat");