From ad66cea8377dedca3cc6568055b4dffb965fd3cd Mon Sep 17 00:00:00 2001 From: Aug <17674666882@163.com> Date: Wed, 12 Feb 2025 17:01:59 +0800 Subject: [PATCH] =?UTF-8?q?1=E3=80=81=E5=9B=BE=E7=89=87=E4=B8=8Epdf?= =?UTF-8?q?=E4=BA=92=E8=BD=AC=E5=8A=9F=E8=83=BD=E5=AE=9E=E7=8E=B0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../org/jeecg/common/util/oss/OssBootUtil.java | 4 +- .../jeecg-boot-module-system.iml | 13 +- jeecg-boot-module-system/pom.xml | 20 +- .../apiService/impl/ContractServiceImpl.java | 283 +++++++++++---------- .../src/main/resources/application-dev.yml | 2 +- 5 files changed, 155 insertions(+), 167 deletions(-) diff --git a/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/oss/OssBootUtil.java b/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/oss/OssBootUtil.java index 9284797..b521f2b 100644 --- a/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/oss/OssBootUtil.java +++ b/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/common/util/oss/OssBootUtil.java @@ -85,7 +85,7 @@ public class OssBootUtil { /** * oss 工具客户端 */ - private static OSSClient ossClient = null; + public static OSSClient ossClient = null; /** * 上传文件至阿里云 OSS @@ -309,7 +309,7 @@ public class OssBootUtil { * * @return */ - private static OSSClient initOss(String endpoint, String accessKeyId, String accessKeySecret) { + public static OSSClient initOss(String endpoint, String accessKeyId, String accessKeySecret) { if (ossClient == null) { ossClient = new OSSClient(endpoint, new DefaultCredentialProvider(accessKeyId, accessKeySecret), diff --git a/jeecg-boot-module-system/jeecg-boot-module-system.iml b/jeecg-boot-module-system/jeecg-boot-module-system.iml index 1cd874b..5dcde84 100644 --- a/jeecg-boot-module-system/jeecg-boot-module-system.iml +++ b/jeecg-boot-module-system/jeecg-boot-module-system.iml @@ -170,7 +170,6 @@ - @@ -286,15 +285,13 @@ + + - - - - - - - + + + diff --git a/jeecg-boot-module-system/pom.xml b/jeecg-boot-module-system/pom.xml index a435da1..c166fe0 100644 --- a/jeecg-boot-module-system/pom.xml +++ b/jeecg-boot-module-system/pom.xml @@ -74,23 +74,11 @@ compile - + - com.itextpdf - itextpdf - 5.5.13 - - - com.itextpdf - itext-asian - 5.2.0 - - - - - org.icepdf.os - icepdf-core - 6.1.2 + org.apache.pdfbox + pdfbox + 2.0.27 diff --git a/jeecg-boot-module-system/src/main/java/org/jeecg/modules/apiService/impl/ContractServiceImpl.java b/jeecg-boot-module-system/src/main/java/org/jeecg/modules/apiService/impl/ContractServiceImpl.java index 9055a11..61454f2 100644 --- a/jeecg-boot-module-system/src/main/java/org/jeecg/modules/apiService/impl/ContractServiceImpl.java +++ b/jeecg-boot-module-system/src/main/java/org/jeecg/modules/apiService/impl/ContractServiceImpl.java @@ -1,14 +1,15 @@ package org.jeecg.modules.apiService.impl; +import com.aliyuncs.utils.IOUtils; import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper; import com.baomidou.mybatisplus.extension.plugins.pagination.Page; -import com.itextpdf.text.Document; -import com.itextpdf.text.DocumentException; -import com.itextpdf.text.Image; -import com.itextpdf.text.PageSize; -import com.itextpdf.text.pdf.PdfWriter; -import org.icepdf.core.util.GraphicsRenderingHints; +import org.apache.pdfbox.pdmodel.PDDocument; +import org.apache.pdfbox.pdmodel.PDPage; +import org.apache.pdfbox.pdmodel.PDPageContentStream; +import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject; +import org.apache.pdfbox.rendering.PDFRenderer; import org.jeecg.common.api.vo.Result; +import org.jeecg.common.util.oss.OssBootUtil; import org.jeecg.config.shiro.ShiroRealm; import org.jeecg.modules.apiBean.PageBean; import org.jeecg.modules.apiService.ContractService; @@ -20,17 +21,14 @@ import org.jeecg.modules.employContract.entity.EmployContract; import org.jeecg.modules.employContract.service.IEmployContractService; import org.jeecg.modules.employContractTemplate.entity.EmployContractTemplate; import org.jeecg.modules.employContractTemplate.service.IEmployContractTemplateService; -import org.jeecg.modules.employResume.entity.EmployResume; -import org.jeecg.modules.employResume.service.IEmployResumeService; import org.jeecg.modules.hanHaiMember.entity.HanHaiMember; import org.springframework.stereotype.Service; -import sun.misc.BASE64Encoder; import javax.annotation.Resource; import javax.imageio.ImageIO; import java.awt.image.BufferedImage; -import java.awt.image.RenderedImage; import java.io.*; +import java.net.URL; import java.text.SimpleDateFormat; import java.util.*; @@ -57,10 +55,6 @@ public class ContractServiceImpl implements ContractService { //个人实名认证表 @Resource private IEmployAuthenticationPersonService authenticationPersonService; - - //简历信息表 - @Resource - private IEmployResumeService employResumeService; /******************************************************************************************************************/ //电子合同-获取电子合同列表 @@ -338,154 +332,163 @@ public class ContractServiceImpl implements ContractService { } } - /*********************************************图片与pdf互转*********************************************************/ - //pdf转图片base64(一张pdf转成多个base64图片) + //pdf转图片base64 @Override - public Result pdf2imagebase64(String pdfPath){ - - //String pdfPath = "F:\\upload\\test_1736767131255.pdf";//pdf文件路径 - //获取当前时间 - SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss"); - Date now = new Date(); - String formattedDate = sdf.format(now); - System.out.println(formattedDate); - String imagePath = "F:\\temp\\";//图片文件路径 - String fileName = formattedDate +"image_";//图片文件名字 - - //文件流对象 - InputStream in = null; + public Result pdf2imagebase64(String pdfPath) { - List pathList = new ArrayList<>();//图片路径列表 - List codeList = new ArrayList<>();//base64列表 + List imageBase = null;//图片base64 + try{ + imageBase = convertPdfToBase64(pdfPath); + }catch (Exception e){ + e.printStackTrace(); + return Result.error("pdf转图片base64失败"); + } + return Result.OK("图片base64", imageBase); - Map map = new HashMap<>(); + } + //图片转pdf + @Override + public Result image2pdf(String images) { + String pdfUrl = null; try{ - org.icepdf.core.pobjects.Document document = new org.icepdf.core.pobjects.Document(); - document.setFile(pdfPath); - float scale = 2.5f;//缩放比例 - float rotation = 0f;//旋转角度 - - //pdf转图片 - for (int i = 0; i < document.getNumberOfPages(); i++) { - BufferedImage image = (BufferedImage) - document.getPageImage(i, GraphicsRenderingHints.SCREEN, org.icepdf.core.pobjects.Page.BOUNDARY_CROPBOX, rotation, scale); - RenderedImage rendImage = image; - File fileDir = new File(imagePath); - if (!fileDir.exists()) { - fileDir.mkdirs(); - } - String imgName = fileName + i + ".png";//图片名称 - String filePath = imagePath + imgName;//图片文件路径 - File file = new File(filePath); - ImageIO.write(rendImage, "png", file); - image.flush(); - pathList.add(filePath); - } - document.dispose();//关闭流 - - //图片转base64 - for (String path : pathList) { - String imgFile = path;// 待处理的图片 - - byte[] data = null; - String encode = null; // 返回Base64编码过的字节数组字符串 - BASE64Encoder encoder = new BASE64Encoder();// 对字节数组Base64编码 - - // 读取图片字节数组 - in = new FileInputStream(imgFile); - data = new byte[in.available()]; - in.read(data); - encode = encoder.encode(data); - codeList.add(encode); - } - return Result.OK("pdf转图片base64成功", codeList); + // TODO 目前是本地路径，项目中定义临时路径然后进行转换成 File + String outPutPath = System.getProperty("java.io.tmpdir") + File.separator + "resultPdf.pdf"; + List imageUrlList = Arrays.asList(images.split(";")); + convertImagesToPDF(imageUrlList,outPutPath); + + // 将输出路径转换成 File，后续进行 OSS 上传 + File file = new File(outPutPath); + InputStream inputStream = new FileInputStream(file); + //获取当前时间 + SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss"); + Date now = new Date(); + String formattedDate = sdf.format(now); + pdfUrl = OssBootUtil.upload(inputStream, formattedDate+".pdf"); + + //删除临时文件 + file.delete(); }catch (Exception e){ e.printStackTrace(); - return Result.error("pdf转图片base64失败", codeList); - }finally { - try{ - if(null != in){ - in.close();//关闭文件流 - } - }catch (Exception e){ - e.printStackTrace(); - return Result.error("pdf转图片base64失败", codeList); - } - + return Result.error("图片转pdf失败"); } + return Result.OK("pdf地址", pdfUrl); } + /** + * 将 pdf链接文件转换成多图片base64 + * @param pdfLink + * @return + * @throws IOException + */ + public static List convertPdfToBase64(String pdfLink) throws IOException { + List base64Images = new ArrayList<>(); - //图片转pdf - public Result image2pdf(String images){ + // 下载 PDF 文件 + InputStream pdfInputStream = new URL(pdfLink).openStream(); - //获取当前时间 - SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss"); - Date now = new Date(); - String formattedDate = sdf.format(now); - System.out.println(formattedDate); + // 加载 PDF 文档 + PDDocument document = PDDocument.load(pdfInputStream); - //String images = "F:\\temp\\image_0.png;F:\\temp\\image_1.png;F:\\temp\\image_2.png";//图片文件地址 - String pdfPath = "F:\\temp\\"+formattedDate+".pdf"; // 输出pdf文件路径 - String[] imageList = images.split(";"); + // 初始化 PDF 渲染器 + PDFRenderer pdfRenderer = new PDFRenderer(document); - try{ - ArrayList imageUrllist = new ArrayList(); //图片list集合 - for (int i=0; i imageUrllist, String mOutputPdfFileName) { - Document doc = new Document(PageSize.A4, 0, 0, 0, 0); //new一个pdf文档 - try { - PdfWriter.getInstance(doc, new FileOutputStream(mOutputPdfFileName)); //pdf写入 - doc.open();//打开文档 - for (int i = 0; i < imageUrllist.size(); i++) { //循环图片List，将图片加入到pdf中 - doc.newPage(); //在pdf创建一页 - Image png1 = Image.getInstance(imageUrllist.get(i)); //通过文件路径获取image - float heigth = png1.getHeight(); - float width = png1.getWidth(); - int percent = getPercent2(heigth, width); - png1.setAlignment(Image.MIDDLE); - png1.scalePercent(percent + 3);// 表示是原来图像的比例; - doc.add(png1); - } - doc.close(); - } catch (FileNotFoundException e) { - e.printStackTrace(); - } catch (DocumentException e) { - e.printStackTrace(); - } catch (IOException e) { - e.printStackTrace(); - } - File mOutputPdfFile = new File(mOutputPdfFileName); //输出流 - if (!mOutputPdfFile.exists()) { - mOutputPdfFile.deleteOnExit(); - return null; + /** + * 多图片拼接成pdf + * @param imageUrls + * @param outputPdfPath 输出地址 + * @throws Exception + */ + public static void convertImagesToPDF(List imageUrls, String outputPdfPath) throws Exception { + // 创建 PDF 文档 + PDDocument document = new PDDocument(); + + for (String imageUrl : imageUrls) { + // 创建一个新的页面 + PDPage page = new PDPage(); + document.addPage(page); + + // 获取图片 + InputStream imageStream = new URL(imageUrl).openStream(); + PDImageXObject pdImage = createImageFromInputStream(document, imageStream); + + // 创建内容流 + PDPageContentStream contentStream = new PDPageContentStream(document, page); + + // 获取图片宽高，计算缩放比例 + float imageWidth = pdImage.getWidth(); + float imageHeight = pdImage.getHeight(); + + // 根据 PDF 页面大小调整图片大小 + float pageWidth = page.getMediaBox().getWidth(); + float pageHeight = page.getMediaBox().getHeight(); + + // 按比例缩放图片 + float scaleFactor = Math.min(pageWidth / imageWidth, pageHeight / imageHeight); + float scaledWidth = imageWidth * scaleFactor; + float scaledHeight = imageHeight * scaleFactor; + + // 设置图片的位置 + float x = (pageWidth - scaledWidth) / 2; + float y = (pageHeight - scaledHeight) / 2; + + // 绘制图片 + contentStream.drawImage(pdImage, x, y, scaledWidth, scaledHeight); + + // 关闭内容流 + contentStream.close(); } - return mOutputPdfFile; //反回文件输出流 - } - public static int getPercent2(float h, float w) { - int p = 0; - float p2 = 0.0f; - p2 = 530 / w * 100; - p = Math.round(p2); - return p; + document.save(outputPdfPath); + document.close(); } + /** + * 将图片转换成PDImageXObject对象操作 + * @param document + * @param imageStream + * @return + * @throws IOException + */ + public static PDImageXObject createImageFromInputStream(PDDocument document, InputStream imageStream) throws IOException { + // 使用 ByteArrayOutputStream 读取 InputStream 中的数据 + ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); + byte[] buffer = new byte[1024]; + int bytesRead; + while ((bytesRead = imageStream.read(buffer)) != -1) { + byteArrayOutputStream.write(buffer, 0, bytesRead); + } + + // 将字节数组传给 PDFBox 创建图片对象 + return PDImageXObject.createFromByteArray(document, byteArrayOutputStream.toByteArray(), "image"); + } } diff --git a/jeecg-boot-module-system/src/main/resources/application-dev.yml b/jeecg-boot-module-system/src/main/resources/application-dev.yml index f1b344c..b44e3a6 100644 --- a/jeecg-boot-module-system/src/main/resources/application-dev.yml +++ b/jeecg-boot-module-system/src/main/resources/application-dev.yml @@ -196,7 +196,7 @@ jeecg : secretKey: perarQgbRK9TPNNb2G97EojoJ6kb9H endpoint: oss-cn-beijing.aliyuncs.com bucketName: teyizhaoimg - staticDomain: https://img.teyizhao.com/ + staticDomain: https://img.teyizhao.com # ElasticSearch 6设置 elasticsearch: cluster-name: jeecg-ES