java获取文件夹路径下的图片文件保存至系统指定路径方法

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1、主要方法

public static void main(String[] a) throws IOException{
        FileInputStream in=new FileInputStream("C:/Users/Administrator/Desktop/布局图1.jpg");
        FileOutputStream out= new FileOutputStream("D:/布局图1.jpg");
        BufferedInputStream bufferedIn=new BufferedInputStream(in);
        BufferedOutputStream bufferedOut=new BufferedOutputStream(out);
        byte[] by=new byte[1];
        while (bufferedIn.read(by)!=-1) {
            bufferedOut.write(by);
        }
        bufferedOut.flush();
        bufferedIn.close();
        bufferedOut.close();
        File  file = new File("C:/Users/Administrator/Desktop/布局图1.jpg");
        if (file.isFile() && file.exists()) {
            file.delete();
        }
    }