java -- 读取和输出图片到本地

    public static byte[] getLocalPicture() throws Exception {        byte[] data = null;        FileImageInputStream input = new FileImageInputStream(new File(                "d://HaierVR.jpg"));        ByteArrayOutputStream output = new ByteArrayOutputStream();        byte[] buf = new byte[1024];        int numBytesRead = 0;        while ((numBytesRead = input.read(buf)) != -1) {            output.write(buf, 0, numBytesRead);        }        data = output.toByteArray();        output.close();        input.close();        return data;    }    public static void writeLocalPicture(byte[] data) throws Exception {        FileImageOutputStream imageOutput = new FileImageOutputStream(new File(                "e://123.jpg"));        imageOutput.write(data, 0, data.length);        imageOutput.close();    }