1、电子合同加签

jeecg-boot-module-system/src/main/java/org/jeecg/modules/api/controller2/ContractController.java

@@ -111,4 +111,11 @@ public class ContractController {
         return contractService.image2pdf(images);
     }
 
+    //我的服务-电子合同
+    @ApiOperation(value="工具-pdf加签名", notes="工具-pdf加签名")
+    @RequestMapping(value = "/signPdf", method = {RequestMethod.GET})
+    public Result<?> signPdf(String pdfPath, String imagePath, int pageNo, float positionX, float positonY, float imageWidth, float imageHeight){
+        return contractService.signPdf(pdfPath, imagePath, pageNo, positionX, positonY, imageWidth, imageHeight);
+    }
+
 }

jeecg-boot-module-system/src/main/java/org/jeecg/modules/apiService/ContractService.java

@@ -98,4 +98,7 @@ public interface ContractService {
     //工具-图片转pdf(多个图片用;分隔)
     public Result<?> image2pdf(String images);
 
+    //工具-图片转pdf(多个图片用;分隔)
+    public Result<?> signPdf(String pdfPath, String imagePath, int pageNo, float positionX, float positonY, float imageWidth, float imageHeight);
+
 }

jeecg-boot-module-system/src/main/java/org/jeecg/modules/apiService/impl/ContractServiceImpl.java

@@ -375,6 +375,76 @@ public class ContractServiceImpl implements ContractService {
         return Result.OK("pdf地址", pdfUrl);
     }
 
+    public  Result<?> signPdf(String pdfPath, String imagePath, int pageNo, float positionX, float positonY, float imageWidth, float imageHeight){
+        String tempPath = System.getProperty("java.io.tmpdir") + File.separator + "resultPdf.pdf";//临时文件路径
+        String resultPdfPath = null;
+
+        try{
+            //1、获得文件流对象
+            InputStream pdfInputStream = new URL(pdfPath).openStream();
+            InputStream imageInputStream = new URL(imagePath).openStream();
+            //2、得到PDF文档对象
+            PDDocument document = PDDocument.load(pdfInputStream);
+
+
+
+            int pageNum = document.getNumberOfPages();
+            if(pageNo<0 || pageNo>pageNum){
+                String message = "签名页码超出范围(0~"+pageNum+")，请输入正确的签名页码，当前传入页码："+pageNo;
+                return Result.OK("签名页码超出范围，输入正确的签名页码");
+            }
+            //3、由Document得到Page对象
+            PDPage page = document.getPage(pageNo-1);//页码下标从0开始
+            //4、通过图片路径和PDF文档对象得到图片image对象
+            //PDImageXObject image = PDImageXObject.createFromFile(PNG_PATH, document);
+            PDImageXObject image = createImageFromInputStream(document, imageInputStream);
+            //5、创建pageStream对象
+            PDPageContentStream pageStream = new PDPageContentStream(document, page,PDPageContentStream.AppendMode.APPEND,false,false);
+
+            /**
+             * 可优化位置
+             */
+            //6、pageStream对象绘制图片位置及大小，已PDF文件右下角为原点（x,y）是图片左下角左边，width、height是图片的长和宽
+            //pageStream.drawImage(image, 450, 700,50,50);
+
+            //获取pdf宽度
+            float width = document.getPage(pageNo).getMediaBox().getWidth();
+            positionX = (float) (width * positionX / 750.0);
+            positonY = (float) (width * positonY / 750.0);
+            imageWidth = (float) (width * imageWidth / 750.0);
+            imageHeight = (float) (width * imageHeight / 750.0);
+
+            pageStream.drawImage(image, positionX, positonY,imageWidth,imageHeight);
+            pageStream.close();
+            //7、保存PDF到指定路径
+            document.save(tempPath);
+
+            //8、将输出路径转换成 File，后续进行 OSS 上传
+            File file = new File(tempPath);
+            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);
+            resultPdfPath = OssBootUtil.upload(inputStream, formattedDate+".pdf");
+
+            //删除临时文件
+            file.delete();
+
+            //8、关闭流
+            document.close();
+            pdfInputStream.close();
+
+        }catch (Exception e){
+            e.printStackTrace();
+            return Result.OK("pdf添加签名失败！");
+        }
+
+        return Result.OK("pdfPath", resultPdfPath);
+    }
+
+
+    /***************************************************************************/
     /**
      * 将 pdf链接文件转换成多图片base64
      * @param pdfLink