From fc8b51f40e71aa09bb49f407c1e9f68ac94ceb58 Mon Sep 17 00:00:00 2001
From: mitao <2763622819@qq.com>
Date: 星期一, 29 七月 2024 18:51:32 +0800
Subject: [PATCH] Merge remote-tracking branch 'origin/master'
---
ruoyi-modules/ruoyi-auction/src/main/java/com/ruoyi/auction/util/CreateQrCode.java | 94 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 93 insertions(+), 1 deletions(-)
diff --git a/ruoyi-modules/ruoyi-auction/src/main/java/com/ruoyi/auction/util/CreateQrCode.java b/ruoyi-modules/ruoyi-auction/src/main/java/com/ruoyi/auction/util/CreateQrCode.java
index 095f5a3..b6329af 100644
--- a/ruoyi-modules/ruoyi-auction/src/main/java/com/ruoyi/auction/util/CreateQrCode.java
+++ b/ruoyi-modules/ruoyi-auction/src/main/java/com/ruoyi/auction/util/CreateQrCode.java
@@ -5,15 +5,23 @@
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;
+import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
import java.util.Base64;
import java.util.HashMap;
+import org.apache.commons.fileupload.FileItem;
+import org.apache.commons.fileupload.FileItemFactory;
+import org.apache.commons.fileupload.disk.DiskFileItemFactory;
+import org.springframework.http.MediaType;
+import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.multipart.commons.CommonsMultipartFile;
public class CreateQrCode {
private static final String base64Url = "data:image/png;base64,";
-
/**
* 创建二维码
*
@@ -35,4 +43,88 @@
String text = encoder.encodeToString(outputStream.toByteArray());
return base64Url + text;
}
+
+ /**
+ * 创建二维码
+ *
+ * @param
+ * @param
+ * @return
+ * @throws IOException
+ * @throws WriterException
+ */
+ public static MultipartFile createQRCodeStream(String json)
+ throws IOException, WriterException {
+ QRCodeWriter qrCodeWriter = new QRCodeWriter();
+
+ HashMap<EncodeHintType, Object> hints = new HashMap<>();
+ hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
+ BitMatrix bitMatrix = qrCodeWriter.encode(json, BarcodeFormat.QR_CODE, 600, 600, hints);
+ ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+ MatrixToImageWriter.writeToStream(bitMatrix, "PNG", outputStream);
+ InputStream byteArrayInputStream = new ByteArrayInputStream(
+ outputStream.toByteArray());
+ // byteArrayInputStream 转MultipartFile
+
+ return getMultipartFile(byteArrayInputStream, json + ".png");
+ }
+
+ /**
+ * 获取封装得MultipartFile
+ *
+ * @param inputStream inputStream
+ * @param fileName fileName
+ * @return MultipartFile
+ */
+ public static MultipartFile getMultipartFile(InputStream inputStream, String fileName) {
+ FileItem fileItem = createFileItem(inputStream, fileName);
+ // CommonsMultipartFile是feign对multipartFile的封装，但是要FileItem类对象
+ return new CommonsMultipartFile(fileItem);
+ }
+
+
+ /**
+ * FileItem类对象创建
+ *
+ * @param inputStream inputStream
+ * @param fileName fileName
+ * @return FileItem
+ */
+ public static FileItem createFileItem(InputStream inputStream, String fileName) {
+ FileItemFactory factory = new DiskFileItemFactory(16, null);
+ String textFieldName = "file";
+ FileItem item = factory.createItem(textFieldName, MediaType.MULTIPART_FORM_DATA_VALUE, true,
+ fileName);
+ int bytesRead = 0;
+ byte[] buffer = new byte[10 * 1024 * 1024];
+ OutputStream os = null;
+ // 使用输出流输出输入流的字节
+ try {
+ os = item.getOutputStream();
+ while ((bytesRead = inputStream.read(buffer, 0, 8192)) != -1) {
+ os.write(buffer, 0, bytesRead);
+ }
+ inputStream.close();
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+ } finally {
+ if (os != null) {
+ try {
+ os.close();
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+
+ }
+ }
+ if (inputStream != null) {
+ try {
+ inputStream.close();
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+ }
+ }
+ }
+
+ return item;
+ }
}
\ No newline at end of file
--
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