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springboot整合xwpf将world转为pdf

时间：2022-01-20 09:12:26

该案例实现：

1.读取world模版

2.动态填充world模版数据

3.将填充好的world转换为pdf

目录结构

引入pom依赖

<dependency><groupId>fr.opensagres.xdocreport</groupId><artifactId>org.apache.poi.xwpf.converter.pdf</artifactId><version>1.0.6</version></dependency>

Controller

package com.example.demo.controller;import org.apache.poi.xwpf.converter.pdf.PdfConverter;import org.apache.poi.xwpf.converter.pdf.PdfOptions;import org.apache.poi.xwpf.usermodel.XWPFDocument;import org.apache.poi.xwpf.usermodel.XWPFParagraph;import org.apache.poi.xwpf.usermodel.XWPFRun;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.RequestMapping;import javax.servlet.http.HttpServletResponse;import java.io.*;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import java.util.regex.Matcher;import java.util.regex.Pattern;@Controller@RequestMapping( "/pdf" )public class WorldToPDF4 {private static final Logger logger = LoggerFactory.getLogger(WorldToPDF4.class);@GetMapping("/pdf")public void test(HttpServletResponse response) throws Exception {logger.info("获取world模板...");File inputWordFile = new File("src/main/resources/templet/c.docx");InputStream source = new FileInputStream(inputWordFile);BufferedOutputStream outputStream = new BufferedOutputStream(response.getOutputStream());PdfOptions options = PdfOptions.create();XWPFDocument doc = new XWPFDocument(source);logger.info("读取world模版成功！");Map<String, Object> params = new HashMap<String, Object>();params.put("heroName", "司马徽");params.put("time", "-06-06");// 替换变量占位符 ${xxx}格式，如：${name}replaceParams(doc, params);logger.info("替换world模版动态数据成功！");// 转换为pdfPdfConverter.getInstance().convert(doc, outputStream, options);logger.info("转换pdf成功！");byte[] buffer = new byte[1024];int lenght = 0;while ((lenght = source.read(buffer)) > 0) {outputStream.write(buffer, 0, lenght);}close(outputStream);close(source);logger.info("下载pdf成功！");}/*** 替换段落里面的变量** @param doc 要替换的文档* @param params 参数*/private void replaceParams(XWPFDocument doc, Map<String, Object> params) {Iterator<XWPFParagraph> iterator = doc.getParagraphsIterator();XWPFParagraph paragraph;while (iterator.hasNext()) {paragraph = iterator.next();replaceParam(paragraph, params);}}/*** 替换段落里面的变量** @param paragraph 要替换的段落* @param params 参数*/private void replaceParam(XWPFParagraph paragraph, Map<String, Object> params) {List<XWPFRun> runs;Matcher matcher;String runText = "";if (matcher(paragraph.getParagraphText()).find()) {runs = paragraph.getRuns();int j = runs.size();for (int i = 0; i < j; i++) {runText += runs.get(0).toString();//保留最后一个段落，在这段落中替换值，保留段落样式if (!((j - 1) == i)) {paragraph.removeRun(0);}}matcher = matcher(runText);if (matcher.find()) {while ((matcher = matcher(runText)).find()) {runText = matcher.replaceFirst(String.valueOf(params.get(matcher.group(1))));}runs.get(0).setText(runText, 0);}}}/*** 正则匹配字符串** @param str* @return*/private Matcher matcher(String str) {Pattern pattern = pile("\\$\\{(.+?)\\}", Pattern.CASE_INSENSITIVE);Matcher matcher = pattern.matcher(str);return matcher;}/*** 关闭输入流** @param is*/private void close(InputStream is) {if (is != null) {try {is.close();} catch (IOException e) {e.printStackTrace();}}}/*** 关闭输出流** @param os*/private void close(OutputStream os) {if (os != null) {try {os.close();} catch (IOException e) {e.printStackTrace();}}}}