pdf导出实例（itestpdf）

依赖

        
        
            com.itextpdf
            itextpdf
            5.5.10
        

工具类

package org.jeecg.utils;

import com.itextpdf.text.*;
import com.itextpdf.text.pdf.*;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.util.*;
import java.util.List;



public class PDFUtil {



    /**
     * pdf模板导出
     *
     * @param map 导出结果
     * @param filePath 空pdf路径，作物前端访问路径
     * @throws Exception
     */
    public static void creatPdf(Map map, String filePath) throws Exception {
        try {
            FileOutputStream fos = new FileOutputStream(filePath);;
            BaseFont bf = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
            // 读取pdf模板路径
            Resource resource  = new ClassPathResource(String.valueOf(map.get("tempPath")));
            PdfReader reader = new PdfReader(resource.getURL());

            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            PdfStamper stamper = new PdfStamper(reader, bos);
            stamper.setFormFlattening(true);
            AcroFields form = stamper.getAcroFields();
            // 文字类的内容处理
            Map datemap = (Map) map.get("dataMap");
            form.addSubstitutionFont(bf);
            for (String key : datemap.keySet()) {
                String value = datemap.get(key);
                form.setField(key, value);
                form.setFieldProperty(key,"textsize",9f,null);
            }
            // 图片类的内容处理
            Map imgmap = (Map) map.get("imgMap");
            for (String key : imgmap.keySet()) {
                String value = imgmap.get(key);
                String imgpath = value;
                int pageNo = form.getFieldPositions(key).get(0).page;
                Rectangle signRect = form.getFieldPositions(key).get(0).position;
                float x = signRect.getLeft();
                float y = signRect.getBottom();
                // 根据路径读取图片
                Image image = Image.getInstance(imgpath);
                // 获取图片页面
                PdfContentByte under = stamper.getOverContent(pageNo);
                // 图片大小自适应
                image.scaleToFit(signRect.getWidth(), signRect.getHeight());
                // 添加图片
                image.setAbsolutePosition(x, y);
                under.addImage(image);
            }

            // 如果为false，生成的PDF文件可以编辑，如果为true，生成的PDF文件不可以编辑
            stamper.setFormFlattening(false);
            stamper.close();
            Document doc = new Document();
            PdfCopy copy = new PdfCopy(doc, fos);
            doc.open();
            int pageNum = reader.getNumberOfPages();
            for (int i = 1; i <= pageNum; i++) {
                PdfImportedPage importPage = copy.getImportedPage(new PdfReader(bos.toByteArray()), i);
                copy.addPage(importPage);
            }
            doc.close();
            fos.close();
        } catch (IOException e) {
            System.out.println(e);
        } catch (DocumentException e) {
            System.out.println(e);
        }
    }

}

导出结果数据实例（仅供参考）

package com.fiftheconomic.dataCalculate.service.impl;

import com.fiftheconomic.dataCalculate.domain.TjDataCalculateBase;
import com.fiftheconomic.dataCalculate.domain.TjDataCalculateDetail;
import com.fiftheconomic.dataCalculate.domain.resCompenyIndex;
import com.fiftheconomic.dataCalculate.service.IPdfService;
import org.springframework.stereotype.Service;

import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.util.*;

/**
 * @Author: 苏子龙
 * @Date: 2023/08/01/17:00
 * @Description:
 */
@Service
public class PdfServiceImpl implements IPdfService {

    /**
     * 123  工业单位填报 124 批发和零售业单位填报 125 住宿和餐饮业单位填报 126 制造业，信息传输、软件和信息技术服务业，科学研究和技术服务业单位填报
     *
     * @param resMap
     * @param list
     * @return
     */
    @Override
    public Map oneThree(List resMap, TjDataCalculateBase base, List list) {
        List> lists = new ArrayList<>();//表格 （一行数据一个list）
        SimpleDateFormat dft = new SimpleDateFormat("yyyy-MM-dd");
        Map map = new HashMap<>();//文本域
        for (int i = 0; i < resMap.size(); i++) {
            if (resMap.get(i).getIndexCode() != null) {
                if (!map.containsKey(resMap.get(i).getIndexCode())) {
                    map.put(resMap.get(i).getIndexCode(), resMap.get(i).getIndexValue());
                }
            }
        }
        //添加tj_data_calculate_index基础信息表数据
        for (int j = 0; j < list.size(); j++) {
            System.out.println("++++++++" + j);
            TjDataCalculateDetail data = list.get(j);
            map.put("name" + j, data.getIndexName());
            map.put("unit" + j, data.getUnitof());
            map.put("value" + j, data.getIndexValue());
        }
//        map.put("name", "无"); //添加tj_data_calculate_index头信息
//        map.put("nameInfo", "无"); //填表人姓名
//        map.put("phoen", "无");//填表人电话
//        map.put("nameBy", "无");//单位负责人
//        map.put("USCI", base.getUSCI());//企业社会信用统一代码
//        map.put("comName", base.getComName());//单位详细名称
//        //添加日期
//        LocalDate now = LocalDate.now();
//        map.put("y", String.valueOf(now.getYear()));
//        map.put("m", String.valueOf(now.getMonthValue()));
//        map.put("d", String.valueOf(now.getDayOfMonth()));
//        map.put("time", String.valueOf(now));//填表人电话


        Map o = new HashMap<>();
        String s = base.getIndustryCode();
        if (s.equals("1")) {
            o.put("tempPath", "static/pdf/123.pdf");
        } else if (s.equals("2") || s.equals("3")) {
            o.put("tempPath", "static/pdf/124.pdf");
        } else if (s.equals("4") || s.equals("5")) {
            o.put("tempPath", "static/pdf/125.pdf");
        } else {
            o.put("tempPath", "static/pdf/126.pdf");
        }

        o.put("dataMap", map);
        o.put("imgMap", new HashMap<>());
        Map>> listMap = new HashMap<>();
        listMap.put("table", lists);
        o.put("tableList", listMap);
        return o;
    }

    public static void main(String[] args) {
        LocalDate now = LocalDate.now();
        System.out.println(now.getYear());
        System.out.println(now.getMonthValue());
        System.out.println(now.getDayOfMonth());
    }


}

优化工具包

  public static String creatPdf1(Map map ,OutputStream out,float width[]) throws Exception {

        BaseFont bf = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
//        // 输出流
//            String outPutPath = "E:/excel/files/pdf模板导出.pdf";
//            FileOutputStream out = new FileOutputStream(filePath);
        // 读取pdf模板路径
        Resource resource = new ClassPathResource(String.valueOf(map.get("tempPath")));
        PdfReader reader = new PdfReader(resource.getURL());

        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        PdfStamper stamper = new PdfStamper(reader, bos);
        stamper.setFormFlattening(true);

        AcroFields form = stamper.getAcroFields();
        // 文字类的内容处理
        Map datemap = (Map) map.get("dataMap");
        form.addSubstitutionFont(bf);
        for (String key : datemap.keySet()) {
            String value = datemap.get(key);
            form.setField(key, value);
            form.setFieldProperty(key, "textsize", 9f, null);
        }
        // 图片类的内容处理
        Map imgmap = (Map) map.get("imgMap");
        for (String key : imgmap.keySet()) {
            String value = imgmap.get(key);
            String imgpath = value;
            int pageNo = form.getFieldPositions(key).get(0).page;
            Rectangle signRect = form.getFieldPositions(key).get(0).position;
            float x = signRect.getLeft();
            float y = signRect.getBottom();
            // 根据路径读取图片
            Image image = Image.getInstance(imgpath);
            // 获取图片页面
            PdfContentByte under = stamper.getOverContent(pageNo);
            // 图片大小自适应
            image.scaleToFit(signRect.getWidth(), signRect.getHeight());
            // 添加图片
            image.setAbsolutePosition(x, y);
            under.addImage(image);
        }
        // 表格类
        Map>> listMap = (Map>>) map.get("tableList");
        if (listMap != null) {
            Object[] arr = new Object[]{};
            if (listMap.containsKey("table1")) {
                List> lists1 = listMap.get("table1");

                if (lists1.size() > 0) {
                    arr = new Object[]{"table", "table1"};
                } else {
                    arr = new Object[]{"table"};
                }
            }else {
                arr = new Object[]{"table"};
                arr = new Object[]{"tableInfo"};

            }
//            for (Object key : arr) {
            List> lists = listMap.get("table");
            List> listInfo = listMap.get("tableInfo");
            List> listBy = listMap.get("table1");
            //判断
            if (listBy!= null && listBy.size()>0) {
                //遍历数据添加序号
                for (int i = 0; i < listBy.size(); i++) {
                    List list = listBy.get(i);
//                    List list = listBy.get(0);
                    String data = list.get(0);
                    String on = i + 1 + "   " + data;
//                    String on = 0 + 1 + "   " + data;
                    list.set(0, on);}
                int pageNo = 0;
                if (form.getFieldPositions("table1") == null) {
                    pageNo = 0;
                } else {
                    pageNo = form.getFieldPositions("table1").get(0).page;
                }
                PdfContentByte pcb = stamper.getOverContent(pageNo);
                List listAf = form.getFieldPositions("table1");
                Rectangle signRect = listAf.get(0).position;
                //表格位置
                int columnInfo = listBy.get(0).size();
                int rowInfo = listBy.size();
                PdfPTable tableInfo = new PdfPTable(columnInfo);
//                    float tatalWidth = signRect.getRight() - signRect.getLeft() - 1;

                tableInfo.setTotalWidth(width);
                tableInfo.setLockedWidth(true);
                tableInfo.setKeepTogether(true);
                tableInfo.setSplitLate(false);
                tableInfo.setSplitRows(true);


                Font FontProve = new Font(bf, 8, 0);
                //表格数据填写
                for (int k = 0; k < rowInfo; k++) {
                    List listTo = listBy.get(k);
//                                List listTo = listBy.get(i);
                    for (int j = 0; j < columnInfo; j++) {
                        Paragraph paragraph = new Paragraph(String.valueOf(listTo.get(j)), FontProve);
                        PdfPCell cell = new PdfPCell(paragraph);
                        cell.setBorderWidth(1);
                        cell.setMinimumHeight(1);
                        if (j == 0) {
                            cell.setVerticalAlignment(Element.ALIGN_LEFT);
                            cell.setHorizontalAlignment(Element.ALIGN_LEFT);
                        } else {
                            cell.setVerticalAlignment(Element.ALIGN_CENTER);
                            cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                        }
                        cell.setLeading(0, (float) 1.4);
                        cell.disableBorderSide(15);//隐藏
                        tableInfo.addCell(cell);
                    }
                }
                tableInfo.writeSelectedRows(0, -1, signRect.getLeft(), signRect.getTop(), pcb);
//                        }
            }

            if (listInfo!= null && listInfo.size()>0) {
                //遍历数据添加序号
                for (int i = 0; i < listInfo.size(); i++) {
                    List list = listInfo.get(i);
                    String data = list.get(0);
                    String on = i + 1 +"   " + data ;
                    list.set(0,on);
                }
                int pageNo = 0;
                if (form.getFieldPositions("tableInfo") == null) {
                    pageNo = 0;
                } else {
                    pageNo = form.getFieldPositions("tableInfo").get(0).page;
                }
                PdfContentByte pcb = stamper.getOverContent(pageNo);
                List listAf = form.getFieldPositions("tableInfo");
                Rectangle signRect = listAf.get(0).position;
                //表格位置
                int columnInfo = listInfo.get(0).size();
                int rowInfo = listInfo.size();
                PdfPTable tableInfo = new PdfPTable(columnInfo);
                    float tatalWidth = signRect.getRight() - signRect.getLeft() - 1;
//
                tableInfo.setTotalWidth(tatalWidth);
                tableInfo.setLockedWidth(true);
                tableInfo.setKeepTogether(true);
                tableInfo.setSplitLate(false);
                tableInfo.setSplitRows(true);

                Font FontProve = new Font(bf, 8, 0);
                //表格数据填写
                for (int i = 0; i < rowInfo; i++) {
                    List list = listInfo.get(i);
                    for (int j = 0; j < columnInfo; j++) {
                        Paragraph paragraph = new Paragraph(String.valueOf(list.get(j)), FontProve);
                        PdfPCell cell = new PdfPCell(paragraph);
                        cell.setBorderWidth(1);
                        cell.setMinimumHeight(1);
                        if (j == 0) {
                            cell.setVerticalAlignment(Element.ALIGN_LEFT);
                            cell.setHorizontalAlignment(Element.ALIGN_LEFT);
                        } else {
                            cell.setVerticalAlignment(Element.ALIGN_CENTER);
                            cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                        }
                        cell.setLeading(0, (float) 1.4);
                        cell.disableBorderSide(15);//隐藏
                        tableInfo.addCell(cell);
                    }
                }
                System.out.println(signRect.getLeft());
                System.out.println(signRect.getTop());
                System.out.println(pcb);
                tableInfo.writeSelectedRows(0, -1, signRect.getLeft(), signRect.getTop(), pcb);
            }

            if (lists!= null && lists.size()>0) {
                //遍历数据添加序号
                for (int i = 0; i < lists.size(); i++) {
                    List list = lists.get(i);
                    String data = list.get(0);
                    String on = i + 1 +"   "+ data ;
                    list.set(0,on);
                }
                int pageNo = 0;
                if (form.getFieldPositions("table") == null) {
                    pageNo = 0;
                } else {
                    pageNo = form.getFieldPositions("table").get(0).page;
                }
                PdfContentByte pcb = stamper.getOverContent(pageNo);
                List listAf = form.getFieldPositions("table");
                Rectangle signRect = listAf.get(0).position;
                //表格位置
                int column = lists.get(0).size();
                int row = lists.size();
                PdfPTable table = new PdfPTable(column);
//                    float tatalWidth = signRect.getRight() - signRect.getLeft() - 1;

//                table.setTotalWidth(width);
                table.setLockedWidth(true);
                table.setKeepTogether(true);
                table.setSplitLate(false);
                table.setSplitRows(true);

                Font FontProve = new Font(bf, 8, 0);
                //表格数据填写
                for (int i = 0; i < row; i++) {
                    List list = lists.get(i);
                    for (int j = 0; j < column; j++) {
                        Paragraph paragraph = new Paragraph(String.valueOf(list.get(j)), FontProve);
                        PdfPCell cell = new PdfPCell(paragraph);
                        cell.setBorderWidth(1);
                        cell.setMinimumHeight(1);
                        if (j == 0) {
                            cell.setVerticalAlignment(Element.ALIGN_LEFT);
                            cell.setHorizontalAlignment(Element.ALIGN_LEFT);
                        } else {
                            cell.setVerticalAlignment(Element.ALIGN_CENTER);
                            cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                        }
                        cell.setLeading(0, (float) 1.4);
                        cell.disableBorderSide(15);//隐藏
                        table.addCell(cell);
                    }
                }
                table.writeSelectedRows(1, -1, signRect.getLeft(), signRect.getTop(), pcb);
            }
        }


        // 如果为false，生成的PDF文件可以编辑，如果为true，生成的PDF文件不可以编辑
        stamper.setFormFlattening(true);
        stamper.close();
        Document doc = new Document();
        PdfCopy copy = new PdfCopy(doc, out);
        doc.open();
//        File file = new File("ruoyi-admin/src/main/resources/static/pdf/111.pdf");
//        File file = new File("D:\\feishu\\yihe\\111.pdf");
        //本地路径
        File file = new File("E:\\item\\yihe\\ruoyi-admin\\src\\main\\resources\\static\\pdf\\111.pdf");
        //线上路径
//        File file = new File("D:\\feishu\\yihe\\111.pdf");
        PdfCopy copy1 = new PdfCopy(doc, new FileOutputStream(file));

        doc.open();
        int pageNum = reader.getNumberOfPages();
        for (int i = 1; i <= pageNum; i++) {
            PdfImportedPage importPage = copy.getImportedPage(new PdfReader(bos.toByteArray()), i);
            copy.addPage(importPage);
            copy1.addPage(importPage);
        }
//        String url = AliyunOSSUtil.upload(getMultipartFile(file));
//        System.out.println("url = " + url);
        doc.close();
        return "url";
    }