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zt
2025-09-08 20:02:51 +08:00
parent 8a18223d06
commit fa835684d4
4 changed files with 72 additions and 19 deletions
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45
xinnengyuan/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/common/utils/PdfBoxQrCodeGenerator.java
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@ -224,6 +224,21 @@ public class PdfBoxQrCodeGenerator {
// 二维码大小比例（页面宽高中较小值的20%）
private static final float QR_SIZE_RATIO = 0.2f;
// 二维码大小比例（页面宽高中较小值的20%）
private static final float QR_SIZE = 60.0f;
// 竖坐标
private static final float V_QR_X = 232.0f;
// 竖坐标
private static final float V_QR_Y = 679.5f;
// 横坐标
private static final float H_QR_X = 1116.5f;
// 横坐标
private static final float H_QR_Y = 34.0f;
public static ByteArrayOutputStream addQRCodeToPDFOnAllPages(String srcPdf, byte[] qrCodeBytes, boolean isChangeFile)
throws IOException {
@ -256,6 +271,10 @@ public class PdfBoxQrCodeGenerator {
int numberOfPages = pdfDoc.getNumberOfPages();
for (int pageNum = 1; pageNum <= numberOfPages; pageNum++) {
if (pageNum == 1 && isChangeFile) {
continue;
}
PdfPage page = pdfDoc.getPage(pageNum);
// 获取页面的所有边界框信息
@ -266,25 +285,33 @@ public class PdfBoxQrCodeGenerator {
Rectangle visibleArea = (cropBox != null) ? cropBox : mediaBox;
// 计算页面宽高中较小的值
float minDimension = Math.min(visibleArea.getWidth(), visibleArea.getHeight());
// float minDimension = Math.min(visibleArea.getWidth(), visibleArea.getHeight());
// 动态计算二维码大小（页面宽高中较小值的20%）
float qrSize = minDimension * QR_SIZE_RATIO;
// float qrSize = minDimension * QR_SIZE_RATIO;
// 输出页面尺寸信息
System.out.println("页面 " + pageNum + " 尺寸: " + visibleArea.getWidth() + "x" + visibleArea.getHeight());
System.out.println("页面 " + pageNum + " 二维码大小 (点): " + qrSize);
// System.out.println("页面 " + pageNum + " 尺寸: " + visibleArea.getWidth() + "x" + visibleArea.getHeight());
// System.out.println("页面 " + pageNum + " 二维码大小 (点): " + qrSize);
// 计算左上角的位置（PDF坐标系：原点在左下角）
float qrX = visibleArea.getLeft() + MARGIN;
float qrY = visibleArea.getTop() - qrSize - MARGIN;
// float qrX = visibleArea.getLeft() + MARGIN;
// float qrY = visibleArea.getTop() - qrSize - MARGIN;
// 打印二维码位置信息
System.out.println("页面 " + pageNum + " 左上角二维码位置: x=" + qrX + ", y=" + qrY);
// System.out.println("页面 " + pageNum + " 左上角二维码位置: x=" + qrX + ", y=" + qrY);
float qrX;
float qrY;
if (visibleArea.getWidth() > visibleArea.getHeight()) {
qrX = H_QR_X;
qrY = H_QR_Y;
} else {
qrX = V_QR_X;
qrY = V_QR_Y;
}
try {
// 使用Canvas API添加左上角二维码
addQRCodeWithCanvas(pdfDoc, page, qrCodeBytes, qrX, qrY, qrSize);
addQRCodeWithCanvas(pdfDoc, page, qrCodeBytes, qrX, qrY, QR_SIZE);
} catch (Exception e) {
System.err.println("在页面 " + pageNum + " 添加二维码时出错: " + e.getMessage());