java 生成pdf导出

随便叫个啥呢2025-08-08 12:30

代码生成pdf下载，Springboot vue3

javascript 复制代码 
//处方下载
function handleDownload() {
  exportChuFang({
    id: chufang.value.id
  }).then((res: any) => {
    const url = API_BASE + res.msg
    // 创建一个链接元素
    const link = document.createElement('a')
    link.href = url
    link.download = res.msg.split('/').pop()
    document.body.appendChild(link)

    link.click()
    document.body.removeChild(link)
  })
}
java 复制代码 
import com.itextpdf.text.*;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.text.pdf.draw.LineSeparator;

 @Override
    public String exportChuFang(TbProjectDrugPrescription tbProjectDrugPrescription) {
        TbProjectDrugPrescription oldData=tbProjectDrugPrescriptionMapper.selectTbProjectDrugPrescriptionById(tbProjectDrugPrescription.getId());

        ProjectInitiation projectInitiation=projectInitiationService.findById(oldData.getProjectInitiationId(),null);
        //查询伦理的项目名称
        String filePath = RuoYiConfig.getUploadPath("/chufang/download/");
        String fileName = projectInitiation.getAcceptanceNumber().replace(" ", "")+"_"+ oldData.getVisitNickName().replace(" ", "")  + "_处方_" + DateUtils.dateTimeNow() + ".pdf";
        //生成pdf
        createPdf(filePath + fileName, oldData,projectInitiation);
        String fileUrl = "/profile/chufang/download/" + fileName;
        return fileUrl;
    }

    private void createPdf(String fileUrl, TbProjectDrugPrescription tbProjectDrugPrescription,ProjectInitiation projectInitiation) {
        //生成pdf
        try {
            Document document = new Document();
            PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(fileUrl));
            document.open();

            BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
            Font TITLE_FONT = new Font(baseFont, 20, Font.BOLD);
            Font HEADER_FONT = new Font(baseFont, 12, Font.BOLD);
            Font CONTENT_FONT = new Font(baseFont, 12, Font.NORMAL, BaseColor.GRAY);
            Font ITALIC_FONT = new Font(baseFont, 10,Font.ITALIC);


            // 添加标题
            PdfPTable table = new PdfPTable(3);
            table.setWidthPercentage(100);
            PdfPCell cell = new PdfPCell(new Paragraph("药物/器械临床试验专用处方笺", TITLE_FONT));
            cell.setHorizontalAlignment(Element.ALIGN_CENTER);
            cell.setColspan(3);
            cell.setPaddingBottom(6);
            table.addCell(cell);

            //申办方-药名-适应症-分期
            Paragraph phrase = new Paragraph();
            phrase.add(new Chunk("试验名称/受理号：", HEADER_FONT));
            //申办方-药名-适应症-分期
            StringBuilder s=new StringBuilder();
            s.append(projectInitiation.getSponsorName()).append("-");
            s.append(projectInitiation.getProductName()==null?"药品":projectInitiation.getProductName()).append("-");
            s.append(projectInitiation.getIndication()==null?"":projectInitiation.getIndication()).append("-");
            SysDictData dictData = new SysDictData();
            dictData.setDictType("project_staging");
            List<SysDictData> dictData1 = dictDataService.selectDictDataList(dictData);
            s.append(dictData1.stream().filter(e -> e.getDictValue().equals(projectInitiation.getProjectStage())).findFirst().get().getDictLabel());
            s.append("(").append(projectInitiation.getAcceptanceNumber()).append(")");
            phrase.add(new Chunk(s.toString(), CONTENT_FONT));
            PdfPCell cell2 = new PdfPCell(phrase);
            cell2.setColspan(3);
            cell2.setPaddingBottom(10);
            cell2.setLeading(2f,1.5f);
            table.addCell(cell2);

            phrase = new Paragraph();
            phrase.add(new Chunk("科别：", HEADER_FONT));
            phrase.add(new Chunk(projectInitiation.getUndertakingDepartment(), CONTENT_FONT));
            cell2 = new PdfPCell(phrase);
            cell2.setColspan(3);
            cell2.setPaddingBottom(6);
            table.addCell(cell2);

            phrase = new Paragraph();
            phrase.add(new Chunk("姓名：", HEADER_FONT));
            phrase.add(new Chunk(tbProjectDrugPrescription.getVisitNickName(), CONTENT_FONT));
            cell2 = new PdfPCell(phrase);
            cell2.setPaddingBottom(6);
            table.addCell(cell2);

            phrase = new Paragraph();
            phrase.add(new Chunk("性别：", HEADER_FONT));
            phrase.add(new Chunk("", CONTENT_FONT));
            cell2 = new PdfPCell(phrase);
            cell2.setPaddingBottom(6);
            table.addCell(cell2);

            phrase = new Paragraph();
            phrase.add(new Chunk("年龄：", HEADER_FONT));
            phrase.add(new Chunk("", CONTENT_FONT));
            cell2 = new PdfPCell(phrase);
            cell2.setPaddingBottom(6);
            table.addCell(cell2);

            document.add(table);

            // 创建表格，2列
            PdfPTable table0 = new PdfPTable(2);
            table0.setWidthPercentage(100);
            phrase = new Paragraph();
            phrase.add(new Chunk("受试者编号：", HEADER_FONT));
            phrase.add(new Chunk(tbProjectDrugPrescription.getSubjectsNo(), CONTENT_FONT));
            PdfPCell leftCell = new PdfPCell(phrase);
            leftCell.setBorder(Rectangle.NO_BORDER);
            leftCell.setPaddingBottom(6);
            phrase = new Paragraph();
            phrase.add(new Chunk("访视周期：", HEADER_FONT));
            TbProjectSubjectsVisit subjectsVisit = tbProjectSubjectsVisitMapper.selectTbProjectSubjectsVisitById(tbProjectDrugPrescription.getSubjectsVisitId());
            phrase.add(new Chunk(subjectsVisit.getVisitTask(), CONTENT_FONT));
            PdfPCell rightCell = new PdfPCell(phrase);
            rightCell.setBorder(Rectangle.NO_BORDER);
            rightCell.setPaddingBottom(6);
            table0.addCell(leftCell);
            table0.addCell(rightCell);
            document.add(table0);

            // 添加一条黑色分割线
            LineSeparator line = new LineSeparator();
            line.setLineColor(BaseColor.BLACK); // 设置为黑色
            line.setLineWidth(1f); // 线宽
            line.setPercentage(100f); // 线的宽度占页面宽度的百分比
            document.add(line);

            PdfPTable table1 = new PdfPTable(1);
            table1.setWidthPercentage(100);
            phrase = new Paragraph();
            phrase.add(new Chunk("临床诊断：", HEADER_FONT));
            phrase.add(new Chunk("", CONTENT_FONT));
            PdfPCell cell1 = new PdfPCell(phrase);
            cell1.setBorder(Rectangle.NO_BORDER);
            cell1.setPaddingBottom(6);
            table1.addCell(cell1);
            document.add(table1);

            document.add(line);


            PdfPTable table2 = new PdfPTable(1);
            table2.setWidthPercentage(100);
            phrase = new Paragraph();
            phrase.add(new Chunk("RP：", TITLE_FONT));
            PdfPCell cell3 = new PdfPCell(phrase);
            cell3.setBorder(Rectangle.NO_BORDER);
            cell3.setPaddingBottom(6);
            table2.addCell(cell3);
            document.add(table2);

            // 添加药品信息
            addMedicineInfoTable(document, tbProjectDrugPrescription,ITALIC_FONT,projectInitiation.getDoubleBlindTrial());
            document.add(Chunk.NEWLINE);

            // 添加备注
            phrase = new Paragraph();
            phrase.add(new Chunk("备注：", HEADER_FONT));
            phrase.add(new Chunk(tbProjectDrugPrescription.getRemark(), CONTENT_FONT));
            document.add(phrase);
            document.add(Chunk.NEWLINE);
            document.add(Chunk.NEWLINE);

            document.add(line);

            // 添加签名信息
            addSignatureTable(document, tbProjectDrugPrescription,HEADER_FONT,CONTENT_FONT);

            document.close();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }


    /**
     * 添加药品信息表格
     */
    private void addMedicineInfoTable(Document document,TbProjectDrugPrescription data,Font ITALIC_FONT, String doubleBlindTrial) throws DocumentException {
        TbProjectDrugOutbound tbProjectDrugOutboundParam = new TbProjectDrugOutbound();
        tbProjectDrugOutboundParam.setPrescriptionId(data.getId());
        List<TbProjectDrugOutbound> tbProjectDrugOutbounds = projectDrugOutboundMapper.selectTbProjectDrugOutboundList(tbProjectDrugOutboundParam);
        if (!CollectionUtils.isEmpty(tbProjectDrugOutbounds)) {
            for (TbProjectDrugOutbound tbProjectDrugOutbound : tbProjectDrugOutbounds) {
                TbProjectDrugStorage tbProjectDrugStorage = tbProjectDrugStorageMapper.selectTbProjectDrugStorageById(tbProjectDrugOutbound.getProjectDrugStorageId());
                PdfPTable table = new PdfPTable(1);
                table.setWidthPercentage(100);
                table.setSpacingBefore(5);
                table.setSpacingAfter(5);
                addTableCell(table, "药名：", tbProjectDrugStorage.getDrugName()+(doubleBlindTrial.equals("1")?"-试验剂/安慰剂":""), ITALIC_FONT);
                addTableCell(table, "剂型：",tbProjectDrugOutbound.getUnitMin()+"剂",  ITALIC_FONT);
                addTableCell(table, "规格：",tbProjectDrugStorage.getMeasurementSpecifications()+" x "+ tbProjectDrugStorage.getDrugSpecifications(),  ITALIC_FONT);
                addTableCell(table, "药物编号：", tbProjectDrugStorage.getDrugStorageNo(),  ITALIC_FONT);
                addTableCell(table, "用法用量：",tbProjectDrugStorage.getUsageDosage(),  ITALIC_FONT);
                addTableCell(table, "取药数量：", tbProjectDrugOutbound.getNum()+tbProjectDrugOutbound.getUnit(),  ITALIC_FONT);
                document.add(table);
            }
        }



    }

    /**
     * 添加签名信息表格
     */
    private static void addSignatureTable(Document document,TbProjectDrugPrescription data,Font HEADER_FONT,Font CONTENT_FONT) throws DocumentException {
        PdfPTable table = new PdfPTable(4);
        table.setWidthPercentage(70);
        table.setSpacingBefore(10);
        table.setSpacingAfter(10);


        addTableCell2(table, "授权医师", "", HEADER_FONT);
        addTableCell2(table, "日期", "", HEADER_FONT);
        addTableCell2(table, "发药人", "", HEADER_FONT);
        addTableCell2(table, "日期", "", HEADER_FONT);
        addTableCell2(table, "领药人", "", HEADER_FONT);
        addTableCell2(table, "日期", "", HEADER_FONT);

        document.add(table);
    }

    /**
     * 添加表格单元格
     */
    private static void addTableCell(PdfPTable table, String label, String content, Font ITALIC_FONT) {
        Phrase phrase = new Phrase();
        phrase.add(new Chunk(label, ITALIC_FONT));
        phrase.add(new Chunk(content, ITALIC_FONT));
        PdfPCell cell2 = new PdfPCell(phrase);
        cell2.setPaddingBottom(6);
        cell2.setBorder(Rectangle.NO_BORDER);
        table.addCell(cell2);
    }
    /**
     * 添加表格单元格
     */
    private static void addTableCell2(PdfPTable table, String label, String content, Font font) {
        PdfPCell cell = new PdfPCell(new Phrase(label, font));
        cell.setPaddingBottom(6);
        table.addCell(cell);

        cell = new PdfPCell(new Phrase(content, font));
        table.addCell(cell);
    }
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