java调用系统命令查找文件

linux中的find命令：find 文件路径 -name 要查找的文件名字

　　　　　　　　　String xml = tmp+".xml";
                String[] command = {"find","/media/data/xml","-name", xml};
                Process p = Runtime.getRuntime().exec(command);
                BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
                String msg = null;
                while((msg = br.readLine())!=null){
                    System.out.println(tmp2+" "+msg);
                    ...
                }
                br.close();