生成通过函件PDF转图片（还有部分排版问题）

coolstore-partner-common/pom.xml

@@ -98,11 +98,11 @@
             <artifactId>openpdf</artifactId>
             <version>1.3.30</version>
         </dependency>
-        <!-- PDFBox -->
+        <!-- https://mvnrepository.com/artifact/org.icepdf.os/icepdf-core -->
         <dependency>
-            <groupId>org.apache.pdfbox</groupId>
+            <groupId>org.icepdf.os</groupId>
-            <artifactId>pdfbox</artifactId>
+            <artifactId>icepdf-core</artifactId>
-            <version>2.0.27</version>
+            <version>6.1.2</version>
         </dependency>
     </dependencies>
 

coolstore-partner-common/src/main/java/com/cool/store/utils/PDFUtils.java

@@ -5,12 +5,15 @@ import com.lowagie.text.Font;
 import com.lowagie.text.Image;
 import com.lowagie.text.Paragraph;
 import com.lowagie.text.pdf.*;
-import org.apache.pdfbox.pdmodel.PDDocument;
+import org.icepdf.core.exceptions.PDFException;
-import org.apache.pdfbox.rendering.PDFRenderer;
+import org.icepdf.core.exceptions.PDFSecurityException;
+import org.icepdf.core.pobjects.Page;
+import org.icepdf.core.util.GraphicsRenderingHints;
 
 import javax.imageio.ImageIO;
 import java.awt.*;
 import java.awt.image.BufferedImage;
+import java.awt.image.RenderedImage;
 import java.io.*;
 
 /**
@@ -128,37 +131,41 @@ public class PDFUtils {
     /**
      * PDF 转图片
      * @param inputStream pdf 输入流
-     * @param dpi
+     * @param scale 缩放比例
      */
-    public static ByteArrayOutputStream pdf2Img(InputStream inputStream, float dpi) {
+    public static ByteArrayOutputStream pdf2Img(InputStream inputStream, float scale) {
-        PDDocument document = null;
+        org.icepdf.core.pobjects.Document document = new org.icepdf.core.pobjects.Document();
-        ByteArrayOutputStream outputStream = null;
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
         try {
-            //　加载pdf文档
+            document.setInputStream(inputStream, "");
-            FileInputStream fileInputStream = new FileInputStream("passLetter.pdf");
+
-            document = PDDocument.load(fileInputStream);
+            float rotation = 0f;// 旋转角度
-            //　PDF文档渲染对象
+            for (int i = 0; i < document.getNumberOfPages(); i++) {
-            PDFRenderer renderer = new PDFRenderer(document);
+                BufferedImage image = (BufferedImage) document.getPageImage(i,
-            int pageCount = document.getNumberOfPages();
+                        GraphicsRenderingHints.SCREEN, Page.BOUNDARY_CROPBOX,
-            for (int i = 0; i < pageCount; i++) {
+                        rotation, scale);
-                /*
+                RenderedImage rendImage = image;
-                 * renderImage(i,1.9f)
+                try {
-                 * i: 指定页对象下标,从0开始,0即第一页
+                    ImageIO.write(rendImage, "png", outputStream);
-                 * 1.9f:DPI值(Dots Per Inch),官方描述比例因子，其中 1 = 72 DPI
+                    //例子中是pdf转png格式的，也可以将上面两行改成jpg，转出jpg格式的，
-                 */
+                    //但是从转换效果来看png的清晰度会相对较高。有个小技巧是第一行行改成jpg，
-                BufferedImage image = renderer.renderImage(i, dpi);
+                    //但第二行使用png，也就是转换成jpg格式但有png清晰度的图片。
-                outputStream = new ByteArrayOutputStream();
+                } catch (IOException e) {
-                FileOutputStream fileOutputStream = new FileOutputStream("pdf2img.png");
+                    e.printStackTrace();
-                ImageIO.write(image, "PNG", outputStream);
+                }
-                byte[] byteArray = outputStream.toByteArray();
+                image.flush();
-                fileOutputStream.write(byteArray);
+                document.dispose();
-                fileOutputStream.close();
                 return outputStream;
             }
-        }catch (Exception e){
+        } catch (PDFException | PDFSecurityException | IOException e1) {
-            e.printStackTrace();
+            e1.printStackTrace();
+        } finally {
+            try {
+                outputStream.close();
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
         }
         return outputStream;
     }
-
 }

coolstore-partner-common/src/main/java/com/cool/store/utils/PassLetterUtils.java

@@ -42,11 +42,11 @@ public class PassLetterUtils {
             document.close();
 
             //3. 填写通过函模板信息
-            addContentToPdf(outputStream, partnerName + "  先生/女士", 122, 640);
+            addContentToPdf(outputStream, partnerName + "  先生/女士", 122, 638);
-            addContentToPdf(outputStream, passCode, 122, 558);
+            addContentToPdf(outputStream, passCode, 122, 557);
-            addContentToPdf(outputStream, verifyCity, 155, 494);
+            addContentToPdf(outputStream, verifyCity, 155, 492);
-            addContentToPdf(outputStream, "60天", 135, 450);
+            addContentToPdf(outputStream, "60天", 135, 448);
-            addContentToPdf(outputStream, passTimeStr, 393, 152);
+            addContentToPdf(outputStream, passTimeStr, 385, 152);
             return outputStream;
         } catch (IOException e) {
             throw new RuntimeException(e);
@@ -75,9 +75,9 @@ public class PassLetterUtils {
         try {
             ByteArrayInputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());
             PdfReader pdfReader = new PdfReader(inputStream);
-            String fontFamillyPath = PassLetterUtils.class.getResource("/static/simsun.ttc").getPath();
+            String fontFamilyPath = PassLetterUtils.class.getResource("/static/Alibaba-PuHuiTi-Regular.ttf").getPath();
-            BaseFont font = BaseFont.createFont(fontFamillyPath + ",0", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
+            BaseFont font = BaseFont.createFont(fontFamilyPath, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
-            PDFUtils.putParagraphAbsolutely(pdfReader, outputStream, x, y, content, font, 20, 1, new Color(255, 82,25));
+            PDFUtils.putParagraphAbsolutely(pdfReader, outputStream, x, y, content, font, 19, 1, new Color(255, 82,25));
         } catch (Exception e) {
             throw new RuntimeException(e);
         }

coolstore-partner-service/src/main/java/com/cool/store/service/impl/PartnerInterviewServiceImpl.java

@@ -22,6 +22,8 @@ import org.springframework.transaction.annotation.Transactional;
 
 import java.io.*;
 
+import static com.cool.store.utils.PDFUtils.pdf2Img;
+
 @Service
 public class PartnerInterviewServiceImpl implements PartnerInterviewService {
 
@@ -122,19 +124,15 @@ public class PartnerInterviewServiceImpl implements PartnerInterviewService {
                 String code = passLetterDetail.getPassCode() == null ? PassLetterUtils.genPassCode(createTime) : passLetterDetail.getPassCode();
                 //生成的 pdf 通过函内存输出流
                 ByteArrayOutputStream pdfOut = PassLetterUtils.genPassLetter(passLetterDetail.getPartnerName(), code, passLetterDetail.getVerifyCity(), createTime);
-                FileOutputStream fileOutputStream = new FileOutputStream("passLetter.pdf");
-                fileOutputStream.write(pdfOut.toByteArray());
-                fileOutputStream.close();
                 //生成的 pdf 通过函内存输入流
                 ByteArrayInputStream inputStream = new ByteArrayInputStream(pdfOut.toByteArray());
-//                String passPdfUrl = ossServer.uploadFileServer(inputStream, "partner/passLetter/" + code + ".pdf");
+                String passPdfUrl = ossServer.uploadFileServer(inputStream, "partner/passLetter/" + code + ".pdf");
-                String passPdfUrl = "";
                 //转换为图片
                 inputStream.reset();
                 ByteArrayOutputStream imageOut = PDFUtils.pdf2Img(inputStream, 2.0f);
+                inputStream = new ByteArrayInputStream(imageOut.toByteArray());
                 //上传 OSS
-//                String passImageUrl = ossServer.uploadFileServer(inputStream, "partner/passLetter/" + code + ".jpg");
+                String passImageUrl = ossServer.uploadFileServer(inputStream, "partner/passLetter/" + code + ".png");
-                String passImageUrl = "";
                 //计算有效期截止日期
                 DateTime expiryDate = DateUtil.offsetDay(createTime, 60);
                 String expiryDateStr = DateUtil.format(expiryDate, "yyyy-MM-dd") + " 23:59:59";