From cc057177b2fb17aee9a173a6adbabdc578fd74c7 Mon Sep 17 00:00:00 2001
From: tangzy <tangzy123456>
Date: Mon, 06 Dec 2021 10:30:44 +0800
Subject: [PATCH] 1.许可
---
src/main/java/org/springblade/common/utils/QRCodeUtil.java | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/src/main/java/org/springblade/common/utils/QRCodeUtil.java b/src/main/java/org/springblade/common/utils/QRCodeUtil.java
index fe98c12..df6c82c 100644
--- a/src/main/java/org/springblade/common/utils/QRCodeUtil.java
+++ b/src/main/java/org/springblade/common/utils/QRCodeUtil.java
@@ -3,6 +3,8 @@
import com.github.xiaoymin.knife4j.core.util.StrUtil;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
+import com.google.zxing.WriterException;
+import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
@@ -212,4 +214,24 @@
ImageIO.write(image, IMAGE_FORMAT, output);
}
+ /**
+ *高度——height，
+ * 宽度——width，
+ * 二维码内容——text（url需要自动跳转前面加上https://）
+ */
+ public static byte[] getQRCodeImage(String text, int width, int height) throws WriterException, IOException {
+ QRCodeWriter qrCodeWriter = new QRCodeWriter();
+
+ HashMap<EncodeHintType, Object> hints = new HashMap<>();
+ hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
+
+ BitMatrix bitMatrix =qrCodeWriter.encode(text,BarcodeFormat.QR_CODE, width, height,hints);
+ //BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height);
+
+ ByteArrayOutputStream pngOutputStream = new ByteArrayOutputStream();
+ MatrixToImageWriter.writeToStream(bitMatrix, "JPG", pngOutputStream);
+ //返回
+ return pngOutputStream.toByteArray();
+ }
+
}
--
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