生成二维码公共方法

pom.xml

@@ -148,6 +148,18 @@
 			<version>5.7.17</version>
 		</dependency>
 
+		<!-- 二维码 -->
+		<dependency>
+			<groupId>com.google.zxing</groupId>
+			<artifactId>core</artifactId>
+			<version>3.4.1</version>
+		</dependency>
+		<dependency>
+			<groupId>com.google.zxing</groupId>
+			<artifactId>javase</artifactId>
+			<version>3.4.1</version>
+		</dependency>
+
 	</dependencies>
 
 	<build>

src/main/java/com/jsh/erp/util/QRCodeGenerator.java

@@ -0,0 +1,51 @@
+package com.jsh.erp.util;
+
+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.jsh.erp.base.AjaxResult;
+
+import java.nio.file.FileSystems;
+import java.nio.file.Path;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 二维码生成器
+ */
+public class QRCodeGenerator {
+
+    /**
+     * 生成二维码图片
+     * @param text 二维码内容
+     * @param width 二维码宽度
+     * @param height 二维码高度
+     * @param filePath 二维码数据文件路径
+     * @throws Exception
+     */
+    public static void generateQRCodeImage(String text, int width, int height, String filePath) throws Exception {
+        QRCodeWriter qrCodeWriter = new QRCodeWriter();
+        Map<EncodeHintType, Object> hints = new HashMap<>();
+        hints.put(EncodeHintType.CHARACTER_SET, "UTF-8"); // 设置编码格式为UTF-8
+        BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height, hints);
+        Path path = FileSystems.getDefault().getPath(filePath);
+        MatrixToImageWriter.writeToPath(bitMatrix, "PNG", path); // 输出图片格式为PNG
+    }
+
+    /**
+     * 生成二维码图片
+     * @param text 图片内容
+     * @return
+     */
+    public String generateQRCodeImage(String text) throws Exception {
+        int width = 300;
+        int height = 300;
+        String filePath = "filePath";
+        generateQRCodeImage(text, width, height, filePath);
+        return filePath;
+    }
+
+}