Java純代碼實現(xiàn)導出pdf
更新時間：2023年12月28日 14:03:52 作者：Xiao5xiao122
在項目開發(fā)中,產品的需求越來越奇葩啦,開始文件下載都是下載為excel的,做著做著需求竟然變了,要求能導出pdf,所以本文就來用Java實現(xiàn)導出pdf功能吧
java導出pdf
在項目開發(fā)中，產品的需求越來越奇葩啦，開始文件下載都是下載為excel的，做著做著需求竟然變了，要求能導出pdf。導出pdf倒也不是特別大的問題關鍵就是麻煩。
導出pdf我知道的一共有3中方法：
方法一：利用模板導出，但是首先編輯模板的工具不好找，現(xiàn)有的國外的工具要收費，所以放棄了這個。
方法二：利用HTML頁面導出，奈何自己不會寫HTML，前端忙沒時間幫忙寫。本著求人不如靠己的想法就選擇了第三種比較麻煩的方法，自己用table畫。
方法三：自己用純代碼畫格式（可調字體大小，顏色，對復雜沒有規(guī)則的數(shù)據(jù)都可以）
首先必須導入的依賴有
<!--導出pdf所需包-->
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.10</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itext-asian</artifactId>
<version>5.2.0</version>
</dependency>
然后就是一頓代碼輸出
先把效果貼上
然后是代碼部分
@ApiOperation(value = "導出")
@PostMapping("/download")
@SneakyThrows(Exception.class)
public void download(@RequestBody @Valid FumigationDTO fumigationDTO, HttpServletResponse response, HttpServletRequest request) {
// 防止日志記錄獲取session異常
request.getSession();
// 設置編碼格式
response.setContentType("application/pdf;charset=UTF-8");
response.setCharacterEncoding("utf-8");
String fileName = URLEncoder.encode("下載的PDF名稱", "UTF-8");
response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".pdf");
fumigationService.download(fumigationDTO, response);
}
業(yè)務層
@Override
public void download(FumigationDTO fumigationDTO, HttpServletResponse response) throws IOException {
//要下載的數(shù)據(jù)查詢數(shù)據(jù)部分我去掉了有需要自己根據(jù)業(yè)務取
FumigationDowloadVO fumigationDowloadVO = new FumigationDowloadVO();
// 定義全局的字體靜態(tài)變量
Font titlefont;
Font headfont;
Font keyfont = null;
Font textfont = null;
Font content = null;
// 最大寬度
try {
// 不同字體（這里定義為同一種字體：包含不同字號、不同style）
BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
titlefont = new Font(bfChinese, 16, Font.BOLD);
headfont = new Font(bfChinese, 14, Font.BOLD);
keyfont = new Font(bfChinese, 10, Font.BOLD);
textfont = new Font(bfChinese, 15, Font.NORMAL);
content = new Font(bfChinese, 10, Font.NORMAL);
} catch (Exception e) {
e.printStackTrace();
}
BaseFont bf;
Font font = null;
try {
//創(chuàng)建字體
bf = BaseFont.createFont( "STSong-Light", "UniGB-UCS2-H",
BaseFont.NOT_EMBEDDED);
//使用字體并給出顏色
font = new Font(bf,20,Font.BOLD,BaseColor.BLACK);
} catch (Exception e) {
e.printStackTrace();
}
Document document = new Document(new RectangleReadOnly(842F, 595F));
//設置頁邊距 60:左邊距，60：右邊距，72：上邊距，72：下邊距
document.setMargins(60, 60, 72, 72);
try {
PdfWriter.getInstance(document,response.getOutputStream());
//添加頁碼
writer.setPageEvent(new PdfPageUtil());
//打開生成的pdf文件
document.open();
//設置內容
Paragraph paragraph = new Paragraph("熏蒸備案回執(zhí)",font);
paragraph.setAlignment(1);
//引用字體
document.add(paragraph);
// 設置表格的列寬和列數(shù)
float[] widths = {25f,25f,25f,25f,25f,25f};
PdfPTable table = new PdfPTable(widths);
table.setSpacingBefore(20f);
// 設置表格寬度為100%
table.setWidthPercentage(100.0F);
table.setHeaderRows(1);
table.getDefaultCell().setHorizontalAlignment(1);
PdfPCell cell = null;
//第一行
cell = new PdfPCell(new Paragraph("熏蒸備案編碼",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
cell.setFixedHeight(30);
table.addCell(cell);
cell = new PdfPCell(new Paragraph(fumigationDowloadVO.getXzbm()));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph("熏蒸備案時間",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph(CheckVerifyUtil.dateToString4(fumigationDowloadVO.getSqxzrq())));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph("申請備案單位",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph(fumigationDowloadVO.getDwmc(),content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
//第二行
cell = new PdfPCell(new Paragraph("熏蒸作業(yè)庫點",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
cell.setFixedHeight(30);
table.addCell(cell);
cell = new PdfPCell(new Paragraph(fumigationDowloadVO.getKdmc(),content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph("負責人",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph(fumigationDowloadVO.getFzr(),content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph("聯(lián)系電話",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph(fumigationDowloadVO.getFzrdh(),content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
//第三行
cell = new PdfPCell(new Paragraph("單據(jù)狀態(tài)",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
cell.setFixedHeight(30);
table.addCell(cell);
cell = new PdfPCell(new Paragraph(shzt(fumigationDowloadVO.getShzt()),content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph("審核時間",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph(CheckVerifyUtil.dateToString5(fumigationDowloadVO.getShsj()),content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph(" ",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
cell = new PdfPCell(new Paragraph(" ",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(cell);
// 設置表格的列寬和列數(shù)
float[] widths2 = {25f,25f,25f,25f,25f,25f};
PdfPTable table2 = new PdfPTable(widths2);
table2.setSpacingBefore(20f);
// 設置表格寬度為100%
table2.setWidthPercentage(100.0F);
table2.setHeaderRows(1);
table2.getDefaultCell().setHorizontalAlignment(1);
//人員列表-第四行
cell = new PdfPCell(new Paragraph("姓名",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
cell.setFixedHeight(20);
table2.addCell(cell);
cell = new PdfPCell(new Paragraph("職務",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table2.addCell(cell);
cell = new PdfPCell(new Paragraph("職業(yè)資格",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table2.addCell(cell);
cell = new PdfPCell(new Paragraph("身體狀況",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table2.addCell(cell);
cell = new PdfPCell(new Paragraph("熏蒸任務分工",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table2.addCell(cell);
cell = new PdfPCell(new Paragraph("是否外包",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table2.addCell(cell);
//人員列表數(shù)據(jù)-第五行
if(fumigationDowloadVO.getProples().size() > 0){
for (RecordFumigationPeople prople : fumigationDowloadVO.getProples()) {
PdfPCell cell1 = new PdfPCell(new Paragraph(prople.getXm(), content));
PdfPCell cell2 = new PdfPCell(new Paragraph(prople.getZw(), content));
PdfPCell cell3 = new PdfPCell(new Paragraph(prople.getZyzg(), content));
PdfPCell cell4 = new PdfPCell(new Paragraph(prople.getStzk(), content));
PdfPCell cell5 = new PdfPCell(new Paragraph(prople.getXzrwfg(), content));
PdfPCell cell6 = new PdfPCell(new Paragraph(prople.getSfwb(), content));
//單元格對齊方式
cell1.setHorizontalAlignment(Element.ALIGN_CENTER);
cell1.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell1.setFixedHeight(20);
//單元格垂直對齊方式
cell2.setHorizontalAlignment(Element.ALIGN_CENTER);
cell2.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell3.setHorizontalAlignment(Element.ALIGN_CENTER);
cell3.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell4.setHorizontalAlignment(Element.ALIGN_CENTER);
cell4.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell5.setHorizontalAlignment(Element.ALIGN_CENTER);
cell5.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell6.setHorizontalAlignment(Element.ALIGN_CENTER);
cell6.setVerticalAlignment(Element.ALIGN_MIDDLE);
table2.addCell(cell1);
table2.addCell(cell2);
table2.addCell(cell3);
table2.addCell(cell4);
table2.addCell(cell5);
table2.addCell(cell6);
}
}
// 設置表格的列寬和列數(shù)
float[] widths3 = {25f,25f,25f,25f,25f};
PdfPTable table3 = new PdfPTable(widths3);
table3.setSpacingBefore(20f);
// 設置表格寬度為100%
table3.setWidthPercentage(100.0F);
table3.setHeaderRows(1);
table3.getDefaultCell().setHorizontalAlignment(1);
//實施儲糧信息
cell = new PdfPCell(new Paragraph("倉房",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
cell.setFixedHeight(20);
table3.addCell(cell);
cell = new PdfPCell(new Paragraph("貨位",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table3.addCell(cell);
cell = new PdfPCell(new Paragraph("糧食品種",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table3.addCell(cell);
cell = new PdfPCell(new Paragraph("計劃熏蒸開始時間",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table3.addCell(cell);
cell = new PdfPCell(new Paragraph("計劃熏蒸結束時間",content));
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell.setHorizontalAlignment(Element.ALIGN_CENTER);
table3.addCell(cell);
if(fumigationDowloadVO.getDtls().size() > 0){
for (RecordFumigationDtlVO dtl : fumigationDowloadVO.getDtls()) {
PdfPCell cell1 = new PdfPCell(new Paragraph(dtl.getCfmc(), content));
PdfPCell cell2 = new PdfPCell(new Paragraph(dtl.getHwmc(), content));
PdfPCell cell3 = new PdfPCell(new Paragraph(dtl.getLspzmc(), content));
PdfPCell cell4 = new PdfPCell(new Paragraph(CheckVerifyUtil.dateToString4(dtl.getJhxzksrq()), content));
PdfPCell cell5 = new PdfPCell(new Paragraph(CheckVerifyUtil.dateToString4(dtl.getJhxzjsrq()), content));
//設置居中
cell1.setHorizontalAlignment(Element.ALIGN_CENTER);
cell1.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell1.setFixedHeight(20);
cell2.setHorizontalAlignment(Element.ALIGN_CENTER);
cell2.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell3.setHorizontalAlignment(Element.ALIGN_CENTER);
cell3.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell4.setHorizontalAlignment(Element.ALIGN_CENTER);
cell4.setVerticalAlignment(Element.ALIGN_MIDDLE);
cell5.setHorizontalAlignment(Element.ALIGN_CENTER);
cell5.setVerticalAlignment(Element.ALIGN_MIDDLE);
table3.addCell(cell1);
table3.addCell(cell2);
table3.addCell(cell3);
table3.addCell(cell4);
table3.addCell(cell5);
}
}
document.add(new Paragraph("\n"));
document.add(new Paragraph("▋ 基本信息",content));
document.add(new Paragraph("\n"));
document.add(table);
document.add(new Paragraph("\n"));
document.add(new Paragraph("▋ 基本信息",content));
document.add(new Paragraph("\n"));
document.add(table2);
document.add(new Paragraph("\n"));
document.add(new Paragraph("▋ 熏蒸作業(yè)儲糧糧情",content));
document.add(new Paragraph("\n"));
document.add(table3);
//關閉文檔
document.close();
} catch (DocumentException e) {
e.printStackTrace();
log.error("導出pdf失敗:{}",e);
}
}
（二）2023-08-24 更新導出PDF無表格
效果：內容全部為代碼實現(xiàn)
貼上代碼：
@SneakyThrows
@PostMapping("/rectification/notice/export")
@ApiOperation("xxxx通知導出")
public void registrationNoticeExport(@RequestBody InspectionPlanDtlListDTO reqParam, HttpServletRequest request, HttpServletResponse response) {
request.getSession();
if (StringUtils.isBlank(reqParam.getId())) {
throw new CustomException("id不能為空");
}
String year = String.valueOf(Calendar.getInstance().get(Calendar.YEAR));
ExpertSignInExportVO vo = inspectionProblemService.registrationNoticeExport(reqParam.getId());
if(NoticeCoeEnum.getIdList().contains(vo.getId())){
vo.setDate("2023年08月18日");
}else {
vo.setDate(DateUtil.date().toString(DatePattern.CHINESE_DATE_PATTERN));
}
// 檢查單位
List<InspectionPlanUnitVO> planUnitList = inspectionPlanUnitRelationMapper.selectByPlanId(vo.getPlanId());
vo.setInspectionCompany(planUnitList.stream().map(InspectionPlanUnitVO::getUnitName).collect(Collectors.joining("、")));
vo.setYear(year);
Field[] fields = vo.getClass().getDeclaredFields();
HashMap<String, String> dataMap = new HashMap<>(fields.length);
for (Field field : fields) {
field.setAccessible(true);
dataMap.put("${" + field.getName() + "}", String.valueOf(field.get(vo)));
}
if (StringUtils.isNotBlank(vo.getInspectionTeamLeader()) || StringUtils.isNotBlank(vo.getInspectorPhone())) {
dataMap.put("${inspectionTeamLeaderInfo}", String.format("（聯(lián)系人：%s；聯(lián)系電話：%s）",
vo.getInspectionTeamLeader(), StringUtils.isNotBlank(vo.getOfficePhone()) ? vo.getOfficePhone() : vo.getInspectorPhone()));
}
dataMap.put("${attachmentNameStr}", " " + String.join("\n ", vo.getAttachmentNameList()));
//導出pdf
PdfUtil.setResponseContentType(response, vo.getInspectedEnterprise() + vo.getPlanName() + "檢查整改通知" + year);
// PdfUtil.fillWordTemplate("template/rectification_notice.pdf", dataMap, response);
PdfUtil.downloadPdf(dataMap,response);
// String fileName = vo.getInspectedEnterprise() + vo.getPlanName() + "檢查整改通知" + year;
// //導出excel
// WordUtil.setResponseContentType(response, fileName);
// WordUtil.fillWordTemplate("template/rectification_notice.docx", dataMap, response.getOutputStream(),Boolean.TRUE);
}
導出pdf工具
public static void setResponseContentType(HttpServletResponse response, String fileName) throws UnsupportedEncodingException {
response.setContentType("application/pdf");
response.setCharacterEncoding("utf-8");
response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "utf-8") + ".pdf");
response.setHeader("Access-Control-Expose-Headers", "Content-Disposition");
}
public static void downloadPdf(Map<String,String> dataMap, HttpServletResponse response){
// 定義全局的字體靜態(tài)變量
Font titlefont;
Font headfont;
Font keyfont = null;
Font textfont = null;
Font content = null;
Font space = null;
Font space1 = null;
Font space2 = null;
Font space3 = null;
// 最大寬度
try {
// 不同字體（這里定義為同一種字體：包含不同字號、不同style）
BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
titlefont = new Font(bfChinese, 16, Font.BOLD);
headfont = new Font(bfChinese, 14, Font.BOLD);
keyfont = new Font(bfChinese, 22, Font.BOLD);
textfont = new Font(bfChinese, 15, Font.NORMAL);
content = new Font(bfChinese, 16, Font.NORMAL);
space = new Font(bfChinese, 5, Font.NORMAL);
space1 = new Font(bfChinese, 20, Font.NORMAL);
space2 = new Font(bfChinese, 20, Font.NORMAL);
space3 = new Font(bfChinese, 3, Font.NORMAL);
} catch (Exception e) {
e.printStackTrace();
}
BaseFont bf;
Font font = null;
try {
//創(chuàng)建字體
bf = BaseFont.createFont( "STSong-Light", "UniGB-UCS2-H",
BaseFont.NOT_EMBEDDED);
//使用字體并給出顏色
font = new Font(bf,36,Font.BOLD, BaseColor.RED);
} catch (Exception e) {
e.printStackTrace();
}
Document document = new Document(new Rectangle(com.itextpdf.text.PageSize.A4));
try {
com.itextpdf.text.pdf.PdfWriter.getInstance(document, response.getOutputStream());
//打開PDF文件
document.open();
//設置內容
Paragraph paragraph = new Paragraph("深圳市糧食和物資儲備保障中心", font);
//居中設置
paragraph.setAlignment(Element.ALIGN_CENTER);
document.add(paragraph);
//頁眉橫線
document.add(new Paragraph("\n", space2));
LineSeparator line = new LineSeparator(3f, 100, BaseColor.RED, Element.ALIGN_CENTER, 0f);
document.add(line);
document.add(new Paragraph("\n", space3));
LineSeparator lineStart = new LineSeparator(1f, 100, BaseColor.RED, Element.ALIGN_CENTER, 0f);
document.add(lineStart);
document.add(new Paragraph("\n", space));
String text = "深儲整改〔 " + dataMap.get("${year}") + "〕" + dataMap.get("${sort}") + "號";
Paragraph paragraph0 = new Paragraph(text, content);
paragraph0.setAlignment(Element.ALIGN_RIGHT);
document.add(paragraph0);
document.add(new Paragraph("\n"));
Paragraph paragraph1 = new Paragraph(dataMap.get("${inspectionCompany}") + "關于", keyfont);
paragraph1.setAlignment(Element.ALIGN_CENTER);
document.add(paragraph1);
document.add(new Paragraph("\n", space));
String concent = dataMap.get("${planName}") + "發(fā)現(xiàn)問題整改的通知";
Paragraph paragraph2 = new Paragraph(concent, keyfont);
paragraph2.setAlignment(Element.ALIGN_CENTER);
document.add(paragraph2);
document.add(new Paragraph("\n"));
Paragraph paragraph3 = new Paragraph(dataMap.get("${qymc}") + ":", content);
paragraph3.setAlignment(Element.ALIGN_LEFT);
document.add(paragraph3);
document.add(new Paragraph("\n", space));
String concent1 = " 現(xiàn)將" + dataMap.get("${kdmc}") + dataMap.get("${planName}")
+ "檢查發(fā)現(xiàn)問題及整改要求轉給你司，請嚴格按期限要求進行整改，并將整改落實情況(含佐證材料及附件)通過深圳市糧食和物資儲備信息管理平臺反饋我中心。";
Paragraph paragraph4 = new Paragraph(concent1, content);
//設置首行縮進
paragraph4.setIndentationRight(2);
document.add(paragraph4);
document.add(new Paragraph("\n", space));
Paragraph paragraph5 = new Paragraph(" 特此通知。", content);
paragraph5.setIndentationRight(2);//右縮進2格
document.add(paragraph5);
document.add(new Paragraph("\n", space1));
document.add(new Paragraph("\n", space1));
//附件
Paragraph paragraph6 = new Paragraph(" 附件:", content);
paragraph6.setIndentationRight(2);//右縮進2格
document.add(paragraph6);
document.add(new Paragraph("\n", space));
Paragraph paragraph7 = new Paragraph(dataMap.get("${attachmentNameStr}"), content);
document.add(paragraph7);
document.add(new Paragraph("\n", space1));
document.add(new Paragraph("\n", space1));
document.add(new Paragraph("\n", space1));
//日期
Paragraph paragraph8 = new Paragraph(dataMap.get("${date}"), content);
//向右
paragraph8.setAlignment(Element.ALIGN_RIGHT);
document.add(paragraph8);
document.add(new Paragraph("\n", space1));
//落款
Paragraph paragraph9 = new Paragraph(dataMap.get("${inspectionTeamLeaderInfo}"), content);
paragraph9.setAlignment(Element.ALIGN_CENTER);
document.add(paragraph9);
//頁尾橫線
document.add(new Paragraph("\n", space2));
document.add(new Paragraph("\n", space2));
LineSeparator lineEnd = new LineSeparator(3f, 100, BaseColor.RED, Element.ALIGN_CENTER, 0f);
document.add(lineEnd);
document.add(new Paragraph("\n", space3));
LineSeparator lineEnd1 = new LineSeparator(1f, 100, BaseColor.RED, Element.ALIGN_CENTER, 0f);
document.add(lineEnd1);
//關閉文檔
document.close();
} catch (Exception e) {
e.printStackTrace();
log.error("導出pdf失?。簕}", e);
}
}
更新于2023-12-15，更新內容：導出PDF增加頁碼和設置頁邊距
以下為效果圖：
package com.sydata.zt.common.pdf;
import com.itextpdf.text.*;
import com.itextpdf.text.pdf.*;
import java.io.IOException;
/**
* @Author xx
* @Date 2023/12/15 10:05
* @Description: 導出pdf添加頁數(shù)
* @Version 1.0
*/
public class PdfPageUtil extends PdfPageEventHelper {
/**
* 頁眉
*/
//public String header = "itext測試頁眉";
/**
* 文檔字體大小，頁腳頁眉最好和文本大小一致
*/
public int presentFontSize = 15;
/**
* 文檔頁面大小，最好前面?zhèn)魅?，否則默認為A4紙張
*/
public Rectangle pageSize = PageSize.A4;
// 模板
public PdfTemplate total;
// 基礎字體對象
public BaseFont bf = null;
// 利用基礎字體生成的字體對象，一般用于生成中文文字
public Font fontDetail = null;
/**
*
* 無參構造方法.
*
*/
public PdfPageUtil() {
}
/**
*
* 構造方法.
*
* @param
*
* @param presentFontSize
* 數(shù)據(jù)體字體大小
* @param pageSize
* 頁面文檔大小，A4，A5，A6橫轉翻轉等Rectangle對象
*/
public PdfPageUtil( int presentFontSize, Rectangle pageSize) {
this.presentFontSize = presentFontSize;
this.pageSize = pageSize;
}
public void setPresentFontSize(int presentFontSize) {
this.presentFontSize = presentFontSize;
}
/**
*
* 文檔打開時創(chuàng)建模板
*/
@Override
public void onOpenDocument(PdfWriter writer, Document document) {
// 共 頁 的矩形的長寬高
total = writer.getDirectContent().createTemplate(50, 50);
}
/**
*
*關閉每頁的時候，寫入頁眉，寫入'第幾頁共'這幾個字。
*/
@Override
public void onEndPage(PdfWriter writer, Document document) {
this.addPage(writer, document);
}
//加分頁
public void addPage(PdfWriter writer, Document document){
//設置分頁頁眉頁腳字體
try {
if (bf == null) {
bf = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", false);
}
if (fontDetail == null) {
fontDetail = new Font(bf, presentFontSize, Font.NORMAL);// 數(shù)據(jù)體字體
}
} catch (DocumentException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
// 1.寫入頁眉
// ColumnText.showTextAligned(writer.getDirectContent(),
// Element.ALIGN_LEFT, new Phrase(header, fontDetail),
// document.left(), document.top() + 20, 0);
// 2.寫入前半部分的 第 X頁/共
int pageS = writer.getPageNumber();
//String foot1 = "第 " + pageS + " 頁 /共";
String foot1 = pageS +"/";
Phrase footer = new Phrase(foot1, fontDetail);
// 3.計算前半部分的foot1的長度，后面好定位最后一部分的'Y頁'這倆字的x軸坐標，字體長度也要計算進去 = len
float len = bf.getWidthPoint(foot1, presentFontSize);
// 4.拿到當前的PdfContentByte
PdfContentByte cb = writer.getDirectContent();
// 5.寫入頁腳1，x軸就是(右margin+左margin + right() -left()- len)/2.0F
ColumnText
.showTextAligned(
cb,
Element.ALIGN_CENTER,
footer,
(document.rightMargin() + document.right()
+ document.leftMargin() - document.left() - len) / 2.0F ,
document.bottom() - 10, 0);
cb.addTemplate(total, (document.rightMargin() + document.right()
+ document.leftMargin() - document.left()) / 2.0F ,
document.bottom() - 10); // 調節(jié)模版顯示的位置
}
// //加水印
// public void addWatermark(PdfWriter writer){
// // 水印圖片
// Image image;
// try {
// image = Image.getInstance("./web/images/001.jpg");
// PdfContentByte content = writer.getDirectContentUnder();
// content.beginText();
// // 開始寫入水印
// for(int k=0;k<5;k++){
// for (int j = 0; j <4; j++) {
// image.setAbsolutePosition(150*j,170*k);
// content.addImage(image);
// }
// }
// content.endText();
// } catch (IOException | DocumentException e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
// }
// }
/**
*
* 關閉文檔時，替換模板，完成整個頁眉頁腳組件
*/
@Override
public void onCloseDocument(PdfWriter writer, Document document) {
// 關閉文檔的時候，將模板替換成實際的 Y 值
total.beginText();
// 生成的模版的字體、顏色
total.setFontAndSize(bf, presentFontSize);
//頁腳內容拼接 如 第1頁/共2頁
//String foot2 = " " + (writer.getPageNumber()) + " 頁";
//頁腳內容拼接 如 第1頁/共2頁
String foot2 = String.valueOf(writer.getPageNumber());
// 模版顯示的內容
total.showText(foot2);
total.endText();
total.closePath();
}
}
然后就可以了直接導出pdf。
以上就是Java純代碼實現(xiàn)導出pdf的詳細內容，更多關于Java導出pdf的資料請關注腳本之家其它相關文章！
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