add 生成二维码接口

2021-09-14 11:09:12 +08:00
parent 09c9168941
commit f1f2a3d0fe
4 changed files with 73 additions and 2 deletions
@@ -0,0 +1,52 @@
+package com.jero.util;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.client.j2se.MatrixToImageConfig;
+import com.google.zxing.client.j2se.MatrixToImageWriter;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.qrcode.QRCodeWriter;
+import com.jero.common.exception.JeroBootException;
+import org.checkerframework.checker.units.qual.K;
+
+import java.io.ByteArrayOutputStream;
+import java.util.Base64;
+
+/**
+ * 生成二维码base64工具类
+ * @author liJiaRao
+ * @date 2021-07-15 10:15
+ */
+public class QrcodeUtil {
+    /**
+     * 蓝色
+     */
+    public static final int BLUE = 0xFF23CEFD;
+    /**
+     * 蓝色
+     */
+    public static final int BLACK = 0xFF000000;
+    /**
+     * 白色透明
+     */
+    public static final int OFF_COLOR = 0x00FFFFFF;
+    /**
+     *  转换url为二维码base64
+     * @param content 要转换的url
+     * @return base64 data:image/png;base64,
+     */
+    public static String create(String content){
+        try {
+            QRCodeWriter qrCodeWriter = new QRCodeWriter();
+            BitMatrix bitMatrix = qrCodeWriter.encode(content, BarcodeFormat.QR_CODE, 600, 600);
+
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            MatrixToImageWriter.writeToStream(bitMatrix, "PNG", outputStream, new MatrixToImageConfig(BLACK,OFF_COLOR));
+
+            Base64.Encoder encoder = Base64.getEncoder();
+
+            return "data:image/png;base64,"+encoder.encodeToString(outputStream.toByteArray());
+        }catch (Exception e){
+            throw new JeroBootException("生成二维码失败");
+        }
+    }
+}