45 lines
1.4 KiB
Java
45 lines
1.4 KiB
Java
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package com.cdzy.ebikeoperate.utils;
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import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
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import net.glxn.qrgen.core.image.ImageType;
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import net.glxn.qrgen.javase.QRCode;
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import java.io.ByteArrayOutputStream;
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import java.util.Base64;
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/**
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* 二维码生成工具类
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*
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* @author dingchao
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* @date 2025/4/1
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* @modified by:
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*/
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public class QRGenUtil {
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/**
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* 生成二维码并返回Base64编码
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*
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* @param content 二维码内容
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* @return Base64编码的二维码
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*/
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public static String generateQRCodeBase64(String content) {
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try (ByteArrayOutputStream stream = QRCode.from(content)
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.withSize(300, 300) // 尺寸
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.withErrorCorrection(ErrorCorrectionLevel.H) // 纠错等级（H为最高）
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.to(ImageType.PNG) // 输出格式
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.stream()) {
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// 使用 Java 8+ 的 Base64 编码（避免自动换行问题）
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return Base64.getEncoder().encodeToString(stream.toByteArray());
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} catch (Exception e) {
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throw new RuntimeException("生成二维码失败", e);
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}
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}
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//public static void main(String[] args) {
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// String content = "B726500590095"; // 二维码内容
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// String base64 = generateQRCodeBase64(content);
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// System.out.println("Base64 二维码: " + base64);
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//}
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}
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