根据pdf模板导入数据生成pdf并下载到指定位置-java版

痛定思痛。 2023-10-02 17:18 34阅读 0赞

1、导入依赖

<dependency>
                <groupId>com.itextpdf</groupId>
                <artifactId>itextpdf</artifactId>
                <version>5.5.13</version>
            </dependency>
            
            <dependency>
                <groupId>com.itextpdf</groupId>
                <artifactId>itext-asian</artifactId>
                <version>5.2.0</version>
            </dependency>

2、生成pdf

public void createPDF(List<DeviceUserParamVo> tbEquipInfos, String baseUrl, String path){
        
            List<PdfReader> list = new ArrayList();
            try {
        
                int pageNum = 1;
                for (DeviceUserParamVo tbEquipInfo: tbEquipInfos) {
        
                    //项目路径
    
                    final BaseFont font = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
    
                    final String[] splits = tbEquipInfo.getDevicePhoto().split(";");
    //                PdfReader reader= new PdfReader("C:\\Users\\Administrator\\Desktop\\sd.pdf");
                    ClassPathResource classPathResource = new ClassPathResource("pdfTemplate/sd.pdf");
                    InputStream inputStream = classPathResource.getInputStream();
                    PdfReader reader= new PdfReader(inputStream);
                    ByteArrayOutputStream bos = new ByteArrayOutputStream();
                    PdfReader pdfReader = null;
                    PdfStamper ps = new PdfStamper(reader, bos);
                    //提取表单
                    AcroFields s = ps.getAcroFields();
                    s.setFieldProperty("XM", "textfont", font, null);
                    s.setFieldProperty("SFZH", "textfont", font, null);
                    s.setFieldProperty("SZS", "textfont", font, null);
                    s.setFieldProperty("SZSHI", "textfont", font, null);
                    s.setFieldProperty("SZX", "textfont", font, null);
                    s.setFieldProperty("SZZ", "textfont", font, null);
                    s.setFieldProperty("SZC", "textfont", font, null);
                    s.setFieldProperty("XXDZ", "textfont", font, null);
                    s.setFieldProperty("GZLX", "textfont", font, null);
                    s.setFieldProperty("SBPP", "textfont", font, null);
                    s.setFieldProperty("SBXH", "textfont", font, null);
                    s.setFieldProperty("CNMJ", "textfont", font, null);
                    s.setFieldProperty("DBH", "textfont", font, null);
                    s.setFieldProperty("AZRY", "textfont", font, null);
                    s.setFieldProperty("AZRYLXFS", "textfont", font, null);
                    s.setField("XM" , tbEquipInfo.getName()==null ? "":tbEquipInfo.getName());
                    s.setField("LXFS",tbEquipInfo.getPhoneNumber() == null ? "" :tbEquipInfo.getPhoneNumber());
                    s.setField("SFZH",tbEquipInfo.getCardId() == null ? "" :tbEquipInfo.getCardId());
                    s.setField("GDDH",tbEquipInfo.getLandlineNumber() == null ? "" :tbEquipInfo.getLandlineNumber());
                    s.setField("SZS",tbEquipInfo.getProvince() == null ? "" :tbEquipInfo.getProvince());
                    s.setField("SZSHI",tbEquipInfo.getCity() == null ? "" :tbEquipInfo.getCity());
                    s.setField("SZX",tbEquipInfo.getCounty() == null ? "" :tbEquipInfo.getCounty());
                    s.setField("SZZ",tbEquipInfo.getTown() == null ? "" :tbEquipInfo.getTown());
                    s.setField("SZC",tbEquipInfo.getVillage() == null ? "" :tbEquipInfo.getVillage());
                    s.setField("XXDZ",tbEquipInfo.getAddress() == null ? "" :tbEquipInfo.getAddress());
                    s.setField("SBBM",tbEquipInfo.getDeviceNumber() == null ? "" :tbEquipInfo.getDeviceNumber());
                    s.setField("GZLX",tbEquipInfo.getRemouldTypeName() == null ? "" :tbEquipInfo.getRemouldTypeName());
                    s.setField("SBPP",tbEquipInfo.getDeviceBrandName() == null ? "" :tbEquipInfo.getDeviceBrandName());
                    s.setField("SBXH",tbEquipInfo.getDeviceTypeName() == null ? "" :tbEquipInfo.getDeviceTypeName());
                    s.setField("CNMJ",tbEquipInfo.getHeatingArea() == null ? "" :tbEquipInfo.getHeatingArea());
                    s.setField("DBH",tbEquipInfo.getMeterNumber() == null ? "" :tbEquipInfo.getMeterNumber());
                    s.setField("AZRY",tbEquipInfo.getInstaller() == null ? "" :tbEquipInfo.getInstaller());
                    s.setField("AZRYLXFS",tbEquipInfo.getInstallerPhone() == null ? "" :tbEquipInfo.getInstallerPhone());
                    s.setField("SBJHRQ",tbEquipInfo.getActivationDate() == null ? "" :tbEquipInfo.getActivationDate().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
                    s.setField("PAGE",pageNum+"");
                    PdfContentByte underContent = ps.getOverContent(1);
                    if(splits.length == 1){
        //一张图片
                        final Rectangle tu = s.getFieldPositions("TU").get(0).position;
                        URL url = new URL(splits[0]);
                        final Image image = Image.getInstance(url);
                        if(image != null){
        
                            float width = image.getPlainWidth();
                            float height = image.getPlainHeight();
                            if(height > width){
        //纵向图片
                                // 根据域的大小缩放图片
                                image.scaleToFit(tu.getWidth(), (float)(tu.getHeight()*0.9));
                                // 添加图片
                                image.setAbsolutePosition(100,60);
                                underContent.addImage(image);
                            }else{
        //横向图片
                                // 根据域的大小缩放图片
                                image.scaleToFit((float)(tu.getWidth()*0.9), (float)(tu.getHeight()*0.9));
                                // 添加图片
                                image.setAbsolutePosition(100,60);
                                underContent.addImage(image);
                            }
                        }
    
                    }else if(splits.length == 2){
        //两张图片
                        final Rectangle tu = s.getFieldPositions("TU").get(0).position;
                        URL url = new URL(splits[0]);
                        final Image image = Image.getInstance(url);
                        if(image != null){
        
                            float width = image.getPlainWidth();
                            float height = image.getPlainHeight();
                            if (height > width) {
        //纵向图片
                                // 根据域的大小缩放图片
                                image.scaleToFit(tu.getWidth()/2, (float) ((tu.getHeight()*0.9)));
                                // 添加图片
                                image.setAbsolutePosition(100,60);
                                underContent.addImage(image);
                            }else{
        //横向图片
                                // 根据域的大小缩放图片
                                image.scaleToFit(tu.getWidth()/2, (float) ((tu.getHeight()*0.9)));
                                // 添加图片
                                image.setAbsolutePosition(82,120);
                                underContent.addImage(image);
                            }
                        }
                        URL url2 = new URL(splits[1]);
                        final Image image2 = Image.getInstance(url2);
                        if(image2 != null){
        
                            float width = image2.getPlainWidth();
                            float height = image2.getPlainHeight();
                            if(height > width){
        //纵向图片
                                // 根据域的大小缩放图片
                                image2.scaleToFit(tu.getWidth()/2, (float) ((tu.getHeight()*0.9)));
                                // 添加图片
                                image2.setAbsolutePosition(100+tu.getWidth()/2,60);
                                underContent.addImage(image2);
                            }else{
        //横向图片
                                // 根据域的大小缩放图片
                                image2.scaleToFit(tu.getWidth()/2, (float) ((tu.getHeight()*0.9)));
                                // 添加图片
                                image2.setAbsolutePosition(82+tu.getWidth()/2,120);
                                underContent.addImage(image2);
                            }
                        }
                    }else if(splits.length == 3){
        
                        final Rectangle tu = s.getFieldPositions("TU").get(0).position;
                        URL url = new URL(splits[0]);
                        Image image = Image.getInstance(url);
                        if(image != null){
        
                            float width = image.getPlainWidth();
                            float height = image.getPlainHeight();
                            if(height > width){
        //纵向图片
                                // 根据域的大小缩放图片
                                image.scaleToFit(tu.getWidth()/3, (float) ((tu.getHeight()*0.9)));
                                // 添加图片
                                image.setAbsolutePosition(80,60);
                                underContent.addImage(image);
                            }else{
        //横向图片
                                // 根据域的大小缩放图片
                                image.scaleToFit(tu.getWidth()/3, (float) ((tu.getHeight()*0.9)));
                                // 添加图片
                                image.setAbsolutePosition(82,120);
                                underContent.addImage(image);
                            }
    
                        }
                        url = new URL(splits[1]);
                        image = Image.getInstance(url);
                        if(image != null){
        
                            float width = image.getPlainWidth();
                            float height = image.getPlainHeight();
                            if(height > width){
        //纵向图片
                                // 根据域的大小缩放图片
                                image.scaleToFit(tu.getWidth()/3, (float) ((tu.getHeight()*0.9)));
                                // 添加图片
                                image.setAbsolutePosition(80+tu.getWidth()/3,60);
                                underContent.addImage(image);
                            }else{
        //横向图片
                                // 根据域的大小缩放图片
                                image.scaleToFit(tu.getWidth()/3, (float) ((tu.getHeight()*0.9)));
                                // 添加图片
                                image.setAbsolutePosition(82+tu.getWidth()/3,120);
                                underContent.addImage(image);
                            }
    
                        }
                        url = new URL(splits[2]);
                        image = Image.getInstance(url);
                        if(image != null){
        
                            float width = image.getPlainWidth();
                            float height = image.getPlainHeight();
                            if(height > width){
        //纵向图片
                                // 根据域的大小缩放图片
                                image.scaleToFit(tu.getWidth()/3, (float) ((tu.getHeight()*0.9)));
                                // 添加图片
                                image.setAbsolutePosition(80+tu.getWidth()/3*2,60);
                                underContent.addImage(image);
                            }else{
        //横向图片
                                // 根据域的大小缩放图片
                                image.scaleToFit(tu.getWidth()/3, (float) ((tu.getHeight()*0.9)));
                                // 添加图片
                                image.setAbsolutePosition(82+tu.getWidth()/3*2,120);
                                underContent.addImage(image);
                            }
                        }
                    }
                    ps.setFormFlattening(true);
                    ps.close();
                    pdfReader = new PdfReader(bos.toByteArray());
                    list.add(pdfReader);
                    pageNum++;
                }
                Document document = new Document();
                OutputStream outputStream = new FileOutputStream(new File(baseUrl+path+".pdf"));
    //            OutputStream outputStream = new FileOutputStream(new File("E:\\"+path+".pdf"));
                PdfCopy copy = new PdfCopy(document, outputStream);
                document.open();
                for (int k = 0; k < list.size(); k++) {
        
    
                    PdfReader pdfReader = list.get(k);
                    document.newPage();
                    copy.addDocument(pdfReader);
                }
                copy.close();
            }catch (Exception e){
        
                e.printStackTrace();
                log.error("=======导出pdf===="+e.getMessage());
            }
    
    
        }