行业知识
spring boot 生成PDF模板文件
2026-11-03 17:49:52
来源：互联网转载
1、主要目录
2、maven依赖
cn.hutool hutool-all 5.7.19 com.alibaba fastjson 1.2.76 org.apache.velocity velocity 1.7 com.itextpdf html2pdf 4.0.3 com.itextpdf font-asian 7.2.3
3、新建一个demo.html静态文件，后续导出模板就是按照此文件进行的
模板pdf
表1
| 姓名 | $!{name} | ||
|---|---|---|---|
| 性别 | #if($!{gender}==1) 男 #else 女 #end | ||
| 出生日期 | $!{birthDate} | 联系方式 | $!{phone} |
双重For循环取值
表2
| 学历 | 学科 | 分数 |
|---|---|---|
| $item.name | #foreach($result in $item.itemList)||
| $velocityCount、$result.subject | 60) #else #end>$result.num |
4、新建PdfUtil工具类
import com.itextpdf.html2pdf.ConverterProperties;import com.itextpdf.html2pdf.HtmlConverter;import com.itextpdf.kernel.font.PdfFont;import com.itextpdf.kernel.font.PdfFontFactory;import com.itextpdf.kernel.geom.PageSize;import com.itextpdf.kernel.pdf.PdfDocument;import com.itextpdf.kernel.pdf.PdfWriter;import com.itextpdf.layout.font.FontProvider;import org.apache.velocity.Template;import org.apache.velocity.app.Velocity;import org.apache.velocity.context.Context;import org.apache.velocity.runtime.RuntimeConstants;import org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader;import java.io.OutputStream;import java.io.StringWriter;import java.nio.charset.StandardCharsets;/** * PDF工具 * * @author ppp * @date 2022/8/5 */public class PdfUtil { static { // Velocity初始化 Velocity.setProperty(RuntimeConstants.OUTPUT_ENCODING, StandardCharsets.UTF_8); Velocity.setProperty(RuntimeConstants.INPUT_ENCODING, StandardCharsets.UTF_8); Velocity.setProperty(RuntimeConstants.RESOURCE_LOADER, "classpath"); Velocity.setProperty("classpath.resource.loader.class", ClasspathResourceLoader.class.getName()); Velocity.init(); } /** * 据模板生成pfd格式文件 * * @param context 上下文对象 * @param template pdf模板 * @param outputStream 生成ofd文件输出流 */ public static void pdfFile(Context context, String template, OutputStream outputStream) { try (PdfWriter pdfWriter = new PdfWriter(outputStream)) { PdfDocument pdfDocument = new PdfDocument(pdfWriter); pdfDocument.setDefaultPageSize(PageSize.A4); ConverterProperties properties = new ConverterProperties(); FontProvider fontProvider = new FontProvider(); // 字体设置，解决中文不显示问题 PdfFont sysFont = PdfFontFactory.createFont("STSongStd-Light", "UniGB-UCS2-H"); fontProvider.addFont(sysFont.getFontProgram(), "UniGB-UCS2-H"); properties.setFontProvider(fontProvider); Template pfdTemplate = Velocity.getTemplate(template, "UTF-8"); StringWriter writer = new StringWriter(); pfdTemplate.merge(context, writer); HtmlConverter.convertToPdf(writer.toString(), pdfDocument, properties); pdfDocument.close(); } catch (Exception e) { throw new RuntimeException("PFD文件生成失败", e); } }} 5、Controller接口测试，也可以根据业务来分层service
package com.example.springboot3.controller;import cn.hutool.core.date.DateUtil;import cn.hutool.core.util.CharsetUtil;import cn.hutool.core.util.URLUtil;import com.example.springboot3.utils.PdfUtil;import jakarta.servlet.ServletOutputStream;import jakarta.servlet.http.HttpServletResponse;import org.apache.velocity.VelocityContext;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import java.util.*;@RestController@RequestMapping("/velocity")public class PdfController { @GetMapping("/getPdf") public void get(HttpServletResponse response){ response.reset(); response.setContentType("application/pdf"); String filename = System.currentTimeMillis()+".pdf"; response.addHeader("Content-Disposition", "inline; filename=" + URLUtil.encode(filename, CharsetUtil.CHARSET_UTF_8)); VelocityContext context = new VelocityContext(); context.put("name", "彭也行"); context.put("gender", 1); context.put("birthDate", DateUtil.formatDateTime(new Date())); context.put("phone", "13666666666"); List eduList = new ArrayList(); // 小学 Map primarySchoolMap = new HashMap(); primarySchoolMap.put("name", "小学"); List scoreList = new ArrayList(); // 语文成绩 Map chineseScore = new HashMap(); chineseScore.put("subject", "语文"); chineseScore.put("num", 60); // 数学成绩 Map mathScore = new HashMap(); mathScore.put("subject", "数学"); mathScore.put("num", 99); scoreList.add(chineseScore); scoreList.add(mathScore); primarySchoolMap.put("itemList", scoreList); primarySchoolMap.put("size", scoreList.size()); // 初中 Map middleSchoolMap = new HashMap(); middleSchoolMap.put("name", "初中"); List middleScoreList = new ArrayList(); // 语文成绩 Map middleChineseScore = new HashMap(); middleChineseScore.put("subject", "语文"); middleChineseScore.put("num", 60); // 数学成绩 Map middleMathScore = new HashMap(); middleMathScore.put("subject", "数学"); middleMathScore.put("num", 99); // 英语 Map middleEnScore = new HashMap(); middleEnScore.put("subject", "英语"); middleEnScore.put("num", 55); middleScoreList.add(middleChineseScore); middleScoreList.add(middleMathScore); middleScoreList.add(middleEnScore); middleScoreList.add(middleEnScore); middleScoreList.add(middleEnScore); middleScoreList.add(middleEnScore); middleScoreList.add(middleEnScore); middleScoreList.add(middleEnScore); middleSchoolMap.put("itemList", middleScoreList); middleSchoolMap.put("size", middleScoreList.size()); eduList.add(primarySchoolMap); eduList.add(middleSchoolMap); context.put("eduList", eduList); try(ServletOutputStream outputStream = response.getOutputStream()){ PdfUtil.pdfFile(context, "static/demo.html", outputStream); }catch (Exception e){ e.printStackTrace(); } }} 6、调用接口浏览器预览
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