From 2166c1a14f9629aa49a5f3bb849ce878df4c4892 Mon Sep 17 00:00:00 2001
From: yangbin <yangbin@qq.com>
Date: 星期三, 28 八月 2024 17:23:25 +0800
Subject: [PATCH] 2
---
lxzn-module-ai/src/main/java/org/jeecg/modules/utils/PdfTurnPngUtils.java | 115 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 115 insertions(+), 0 deletions(-)
diff --git a/lxzn-module-ai/src/main/java/org/jeecg/modules/utils/PdfTurnPngUtils.java b/lxzn-module-ai/src/main/java/org/jeecg/modules/utils/PdfTurnPngUtils.java
new file mode 100644
index 0000000..18f3a12
--- /dev/null
+++ b/lxzn-module-ai/src/main/java/org/jeecg/modules/utils/PdfTurnPngUtils.java
@@ -0,0 +1,115 @@
+package org.jeecg.modules.utils;
+
+import lombok.extern.slf4j.Slf4j;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.rendering.PDFRenderer;
+import org.jeecg.common.util.SHA256Util;
+import org.jeecg.modules.ai.vo.PhotoListVo;
+import org.jeecg.modules.utils.file.FileUtils;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * @author clown
+ * * @date 2024/8/1
+ */
+@Slf4j
+@Component
+public class PdfTurnPngUtils {
+
+ private static String filePngPath;
+
+ @Value("${jeecg.path.upload}")
+ public void setFilePngPath(String filePngPath) {
+ PdfTurnPngUtils.filePngPath = filePngPath;
+ }
+
+
+
+ /**
+ * 浣跨敤pdfbox灏嗘暣涓猵df杞崲鎴愬浘鐗�
+ *
+ * @param fileAddress 鏂囦欢鍦板潃 濡�:C:\\Users\\user\\Desktop\\test
+ * @param filename PDF鏂囦欢鍚嶄笉甯﹀悗缂�鍚�
+ * @param type 鍥剧墖绫诲瀷 png 鍜宩pg
+ */
+ public static void pdf2png(String fileAddress, String filename, String type) {
+ long startTime = System.currentTimeMillis();
+ // 灏嗘枃浠跺湴鍧�鍜屾枃浠跺悕鎷兼帴鎴愯矾寰� 娉ㄦ剰锛氱嚎涓婄幆澧冧笉鑳戒娇鐢╘\鎷兼帴
+ File file = new File(fileAddress + "\\" + filename + ".pdf");
+ try {
+ // 鍐欏叆鏂囦欢
+ PDDocument doc = PDDocument.load(file);
+ PDFRenderer renderer = new PDFRenderer(doc);
+ int pageCount = doc.getNumberOfPages();
+ for (int i = 0; i < pageCount ; i++) {
+ // dpi涓�144锛岃秺楂樿秺娓呮櫚锛岃浆鎹㈣秺鎱�
+ BufferedImage image = renderer.renderImageWithDPI(i, 144); // Windows native DPI
+ // 灏嗗浘鐗囧啓鍑哄埌璇ヨ矾寰勪笅
+ ImageIO.write(image, type,
+ new File(fileAddress + "\\澶囦唤\\" + filename + "_" + (i+1) + "." + type));
+ }
+ long endTime = System.currentTimeMillis();
+ System.out.println("鍏辫�楁椂锛�" + ((endTime - startTime) / 1000.0) + "绉�"); //杞寲鐢ㄦ椂
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+
+ }
+
+ public static List<PhotoListVo> pdf2pngList(File filePdf, String type,String pathImg){
+ PDDocument doc = null;
+ try {
+ List<PhotoListVo> files = new ArrayList<>();
+ doc = PDDocument.load(filePdf);
+ String pdfName = FileUtils.getFilenameNonSuffix(filePdf.getName());
+ if (doc == null ) {
+ return null;
+ }
+ PDFRenderer renderer = new PDFRenderer(doc);
+ int pageCount = doc.getNumberOfPages();
+ Date currentDate = DateUtil.getNow();
+ String monthStr = DateUtil.format(currentDate, DateUtil.STR_YEAR_MONTH);
+ String relativePath = "/" + monthStr + "/" + DateUtil.getDayStr(currentDate) + "/"+ pathImg + "/";
+ //缁濆璺緞
+ String absolutePath = filePngPath + "/" + monthStr + "/" + DateUtil.getDayStr(currentDate) + "/" + pathImg + "/";
+ for (int i = 0; i < pageCount ; i++) {
+ PhotoListVo pVo = new PhotoListVo();
+ // dpi涓�144锛岃秺楂樿秺娓呮櫚锛岃浆鎹㈣秺鎱�
+ BufferedImage image = renderer.renderImageWithDPI(i, 144); // Windows native DPI 144
+ // 灏嗗浘鐗囧啓鍑哄埌璇ヨ矾寰勪笅
+ //鏂囦欢璺緞
+ //鐩稿璺緞
+ String encodeFileName = SHA256Util.getSHA256Str(pdfName + "_" + (i+1) + System.currentTimeMillis());
+ String imgPath = absolutePath + "/" + encodeFileName + "." + type;
+ File targetFile = new File(imgPath);
+ if(!targetFile.getParentFile().exists()){
+ targetFile.getParentFile().mkdirs();
+ }
+ ImageIO.write(image, type, targetFile);
+ pVo.setImgEncodeName(encodeFileName + "." + type);
+ pVo.setImgName(pdfName + "_" + (i+1));
+ pVo.setImgSize(Long.valueOf(new File(imgPath).length()));
+ pVo.setImgSuffix(type);
+ pVo.setPageNumber(i+1);
+ pVo.setImgPath(relativePath);
+ files.add(pVo);
+ }
+ return files;
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+
+ return null;
+ }
+
+
+}
--
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