pdf导出实例（itestpdf）

依赖

<!-- https://mvnrepository.com/artifact/com.itextpdf/itextpdf --><dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>5.5.10</version></dependency>

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<String, Object> 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<String, String> datemap = (Map<String, String>) 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<String, String> imgmap = (Map<String, String>) 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*/@Overridepublic Map<String, Object> oneThree(List<resCompenyIndex> resMap, TjDataCalculateBase base, List<TjDataCalculateDetail> list) {List<List<String>> lists = new ArrayList<>();//表格 （一行数据一个list）SimpleDateFormat dft = new SimpleDateFormat("yyyy-MM-dd");Map<String, String> 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<String, Object> 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<String, List<List<String>>> 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<String, Object> 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<String, String> datemap = (Map<String, String>) 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<String, String> imgmap = (Map<String, String>) 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<String, List<List<String>>> listMap = (Map<String, List<List<String>>>) map.get("tableList");if (listMap != null) {Object[] arr = new Object[]{};if (listMap.containsKey("table1")) {List<List<String>> 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<List<String>> lists = listMap.get("table");List<List<String>> listInfo = listMap.get("tableInfo");List<List<String>> 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<String> list = listBy.get(i);
//                    List<String> 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<AcroFields.FieldPosition> 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<String> listTo = listBy.get(k);
//                                List<String> 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<String> 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<AcroFields.FieldPosition> 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<String> 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<String> 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<AcroFields.FieldPosition> 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<String> 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";}