二维码换行

最新推荐文章于 2025-05-07 11:48:27 发布

原创最新推荐文章于 2025-05-07 11:48:27 发布 · 10w+ 阅读

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文章标签：

#二维码 #换行

二维码专栏收录该内容

1 篇文章

订阅专栏

1、代码

<%@page import="erwebma.AddCode"%>
<%@page import="javax.imageio.ImageIO"%>
<%@page import="java.awt.image.BufferedImage"%>
<%@page import="erwebma.client.j2se.MatrixToImageWriter"%>
<%@page import="com.google.zxing.common.BitMatrix"%>
<%@page import="com.google.zxing.MultiFormatWriter"%>
<%@page import="com.google.zxing.BarcodeFormat"%>
<%@page import="com.google.zxing.EncodeHintType"%>
<%@page import="java.util.Hashtable"%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%
    String data = request.getParameter("data");
    if (data != null) {
        int width = 128;
        int height = 128;
        String format = "png";
        Hashtable hints = new Hashtable();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        BitMatrix bitMatrix = new MultiFormatWriter().encode(data, BarcodeFormat.QR_CODE, width, height, hints);
        BufferedImage bufi = MatrixToImageWriter.toBufferedImage(bitMatrix);
        response.reset();
        response.setContentType("image/png");
        ImageIO.write(bufi, "png", response.getOutputStream());

        out.clear();
        out = pageContext.pushBody();
    }
%>

2、换行

换行，用“%0A”。

3、二维码图片