java bat 脚本怎么写 java调用bat脚本

//调用外部脚本
String fileips=null;//所有的路径
String[] files=null;
String fileip=null;//单个路径
try {
    InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream("pdfconfig.properties"); //加载线程文件成为流
    Properties prop = new Properties();
    prop.load(is);
    fileip = prop.getProperty("pdf_javatobatfile");
    System.out.println("cccc" + fileip);
    files=fileip.split(",");
    System.out.println("长度：" + files.length);
} catch (IOException e) {
    e.printStackTrace();
}
for (int j=0;j<files.length;j++){
    fileip=files[j];

    String fileName=fileip+File.separator;
    File f=new File(fileName);
    System.out.println(f);
    if(f!=null){
        if(f.isDirectory()){
            File[] fileArray=f.listFiles();
            if(fileArray!=null){
                for (int i = 0; i < fileArray.length; i++) {
                    try {
                        Thread.currentThread().sleep(5000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    //递归调用

                    //调用bat脚本  有弹窗
                    try {
                        Runtime.getRuntime().exec("cmd.exe   /C   start  "+fileArray[i]);
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
        else{
            System.out.println(f);
        }
    }
}