画图

    public static void main(String[] args) {
//        String[] text = {"测试设备编号;路灯;花源成美路辅路;江苏测试管理有限公司;028-60822000;105.872615383,10.466578703"};
//
//        String imgpath = "D:\\IdeaProjects\\Ticket-Manage-Service\\ticket-manage-service\\QrCode";
//
//        for (int i = 0; i < text.length; i++) {
//
//            String[] s = text[i].split(";");
//
//            String[] lines = {"设备编号:" + s[0], "设备类型:" + s[1], "道路名称:" + s[2], "管护单位:" + s[3], "报修电话:" + s[4]};
//            String[] line = {s[0], s[1], s[2], s[3], s[4]};
//
//            createq(lines, line, imgpath + s[0] + ".jpeg");
//        }

        File path = new File(System.getProperty("user.dir"));
//2024-09-19-8排-2号桌-6号位.png
        File qrCodeFile = new File(path.getAbsolutePath(), "QrCode");
        String filePath = qrCodeFile.getAbsolutePath().concat("/")
                .concat("test")
                .concat(".png");
        QrCodeUtil.generateQrCodeWithText("123456", filePath, "2024-09-19", "8排-2号桌-6号位");
    }

    static void createq(String[] lines, String[] line, String imgpath) {

        String qrCodeText = line[0];

        //二维码大小
        int size = 400;

        //画布大小
        int combinedWidth = size + 800;
        int combinedHeight = size + 400;

        //标题高度
        int topsize = 160;

        //设置标题y坐标
        int yTitle = 110;

        //设置画布内边距
        int padding = 5;

        //设置标题内容
        String title = "xx市镇";

        //设置图片dpi
        int dpi = 300;

        Color blue = new Color(75, 125, 178);

        //设置二维码参数
        Map hints = new HashMap();

        //设置UTF-8， 防止中文乱码
        hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");

        // 设置二维码的容错性
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);

        //留白 默认4
        hints.put(EncodeHintType.MARGIN, 1);

        // 码版本，取值为 1 到 40 ,根据二维码内容决定最低版本
        hints.put(EncodeHintType.QR_VERSION, 3);

        //创建码位图
        BitMatrix bitMatrix = null;
        try {
            bitMatrix = new QRCodeWriter().encode(qrCodeText, BarcodeFormat.QR_CODE, size, size, hints);
        } catch (WriterException e) {
            e.printStackTrace();
        }

        //将生成码位图转换成BufferedImage
        BufferedImage qrImage = MatrixToImageWriter.toBufferedImage(bitMatrix);

        //创建空白BufferedImage
        BufferedImage combined = new BufferedImage(combinedWidth, combinedHeight, BufferedImage.TYPE_INT_RGB);

        //从BufferedImage对象中获取画布（Graphics2D）对象
        Graphics2D graphics = combined.createGraphics();

        //设置渲染提示为启用文本抗锯齿
        graphics.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

        //默认开启绘图抗锯齿
        //graphics.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL,RenderingHints.VALUE_STROKE_DEFAULT);

        //设置空白画布整体背景颜色
        GraphicsUtils.drawBackground(graphics, 0, 0, combinedWidth, combinedHeight, Color.WHITE);

        //绘制表格画线
        //绘制线在内边距内，不影响其它内容，-1操作
        int linepadding = padding - 1;
        //绘制矩形
        GraphicsUtils.drawRectangle(graphics, linepadding, linepadding, combinedWidth - linepadding * 2, combinedHeight - linepadding * 2, Color.BLACK);
        //绘制内三横线
        GraphicsUtils.drawLine(graphics, linepadding, padding + topsize + 1, combinedWidth - linepadding, padding + topsize + 1, Color.BLACK);
        GraphicsUtils.drawLine(graphics, linepadding, padding + topsize + size + 2, combinedWidth - linepadding, padding + topsize + size + 2, Color.BLACK);
        GraphicsUtils.drawLine(graphics, linepadding, combinedHeight - (combinedHeight - padding * 2 - topsize - size + 2) / 2 - padding, combinedWidth - linepadding, combinedHeight - (combinedHeight - padding * 2 - topsize - size + 2) / 2 - padding, Color.BLACK);
        //绘制二维码竖线及右边2横线
        GraphicsUtils.drawLine(graphics, padding + size + 1, padding + topsize + 1, padding + size + 1, padding + topsize + size + 1, Color.BLACK);
        GraphicsUtils.drawLine(graphics, padding + size + 1, padding + topsize + 1 + size / 3, combinedWidth - linepadding, padding + topsize + 1 + size / 3, Color.BLACK);
        GraphicsUtils.drawLine(graphics, padding + size + 1, padding + topsize + 1 + size / 3 * 2, combinedWidth - linepadding, padding + topsize + 1 + size / 3 * 2, Color.BLACK);

        //该方法用于绘制头部绘制矩形并填充指定颜色
        GraphicsUtils.drawFillRect(graphics, padding, padding, combinedWidth - (padding * 2), topsize, blue);

        //二维码插入画布
        GraphicsUtils.drawImage(graphics, qrImage, padding, topsize + padding + 2);

        //该方法用于绘制头部绘制矩形并填充指定颜色
        GraphicsUtils.drawBackground(graphics, padding, padding, combinedWidth - (padding * 2), topsize, blue);

        //绘制头部字体
        Font titleFont = new Font("宋体", Font.BOLD, 70);
        GraphicsUtils.drawFont(graphics, titleFont, Color.white);
        FontMetrics fontMetrics = graphics.getFontMetrics();
        int fontWidth = fontMetrics.stringWidth(title);
        int xTitle = ((combinedWidth - fontWidth) / 2);
        GraphicsUtils.drawText(graphics, title, xTitle, yTitle + padding, titleFont, Color.white);

        //绘制非头部字体

        //设置字体及颜色
        Font downFont = new Font("宋体", Font.BOLD, 50);
        GraphicsUtils.drawFont(graphics, downFont, Color.BLACK);

        fontMetrics = graphics.getFontMetrics();

        int fontHeight = fontMetrics.getHeight();

        for (int i = 0; i < lines.length; i++) {

            if (i < 3) {
                graphics.drawString(lines[i], size + padding + 5, topsize + padding + (size / 3) * i + (size / 3 + fontHeight) / 2);
            } else if (i == 3) {
                int test = combinedHeight - (combinedHeight - padding * 2 - topsize - size) / 4 * 3 - padding + fontHeight / 2;
                graphics.drawString(lines[i], 5 + padding, test);
            } else if (i == 4) {
                int test = combinedHeight - (combinedHeight - padding * 2 - topsize - size) / 4 - padding + fontHeight / 2;
                graphics.drawString(lines[i], 5 + padding, test);
            }
        }

        graphics.dispose();

        try {
            ImageIO.write(combined, "jpeg", new File(imgpath));
        } catch (IOException e) {
            e.printStackTrace();
        }

    }


}

class GraphicsUtils {

    // 创建一个空白的 BufferedImage 对象
    public static BufferedImage createEmptyImage(int width, int height) {
        return new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    }

    // 在图像上设置背景颜色
    public static void drawBackground(Graphics2D g2d, int x, int y, int width, int height, Color color) {
        g2d.setBackground(color);
        g2d.clearRect(x, y, width, height);
    }


    // 在图像上绘制文本
    public static void drawText(Graphics2D g2d, String text, int x, int y, Font font, Color color) {
        g2d.setColor(color);
        g2d.setFont(font);
        g2d.drawString(text, x, y);
    }

    // 在图像上绘制矩形
    public static void drawRectangle(Graphics2D g2d, int x, int y, int width, int height, Color color) {
        g2d.setColor(color);
        g2d.drawRect(x, y, width, height);
    }

    // 在图像上绘制椭圆
    public static void drawEllipse(Graphics2D g2d, int x, int y, int width, int height, Color color) {
        g2d.setColor(color);
        g2d.drawOval(x, y, width, height);
    }

    // 在图像上绘制线段
    public static void drawLine(Graphics2D g2d, int x1, int y1, int x2, int y2, Color color) {
        g2d.setColor(color);
        g2d.drawLine(x1, y1, x2, y2);
    }

    // 在图像上绘制图片
    public static void drawImage(Graphics2D g2d, BufferedImage imageToDraw, int x, int y) {
        g2d.drawImage(imageToDraw, x, y, null);
    }

    // 在图像指定区域绘制颜色
    public static void drawFillRect(Graphics2D g2d, int x, int y, int width, int height, Color color) {
        g2d.setColor(color);
        g2d.fillRect(x, y, width, height);
    }

    // 在图像指定区域绘制颜色
    public static void drawFont(Graphics2D g2d, Font font, Color color) {
        g2d.setFont(font);
        g2d.setColor(color);
    }
}