149 lines
5.7 KiB
Java
149 lines
5.7 KiB
Java
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package com.ruoyi.common.utils;
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import com.documents4j.api.DocumentType;
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import com.documents4j.api.IConverter;
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import com.documents4j.job.LocalConverter;
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import com.itextpdf.text.Document;
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import com.itextpdf.text.PageSize;
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import com.itextpdf.text.pdf.PdfWriter;
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import com.itextpdf.tool.xml.XMLWorkerHelper;
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import java.io.*;
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import java.nio.charset.Charset;
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import java.nio.file.Files;
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/**
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* @author wangqiong
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* @description pdf转换工具类
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* @date 2023-11-28 15:20
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*/
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public class PdfUtils {
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/**
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* 将html字符串转为pdf
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* @param pdfFilePath 保存的路径
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* @param htmlcontent:必须是完整的html格式，比如<html><body>123</body></html>
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*/
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public static boolean htmlStringConvertToPDF(String pdfFilePath, String htmlcontent) {
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Document document = new Document();
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PdfWriter writer = null;
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try {
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if(!new File(pdfFilePath).exists()){
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new File(pdfFilePath).createNewFile();
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}
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writer = PdfWriter.getInstance(document, new FileOutputStream(pdfFilePath));
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// 设置底部距离60，解决重叠问题
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document.setPageSize(PageSize.A4);
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document.setMargins(50, 45, 50, 60);
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document.setMarginMirroring(false);
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document.open();
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XMLWorkerHelper.getInstance().parseXHtml(writer, document, new ByteArrayInputStream(htmlcontent.getBytes("UTF-8")), null, Charset.forName("UTF-8"));
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} catch (Exception e) {
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return false;
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} finally {
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if (null != document) {
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document.close();
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}
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if (null != writer) {
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writer.close();
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}
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}
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return true;
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}
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/**
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* 根据html文件生成pdf
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* @param pdfFilePath pdf文件生成路径
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* @param htmlFilePath html文件路径
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*/
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public static boolean htmlFileConvertToPDF(String pdfFilePath, String htmlFilePath) {
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Document document = new Document();
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PdfWriter writer = null;
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FileOutputStream fileOutputStream = null;
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FileInputStream fileInputStream = null;
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try {
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fileOutputStream = new FileOutputStream(pdfFilePath);
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writer = PdfWriter.getInstance(document, fileOutputStream);
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// 设置底部距离60，解决重叠问题
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document.setPageSize(PageSize.A4);
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document.setMargins(50, 45, 50, 60);
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document.setMarginMirroring(false);
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document.open();
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StringBuffer sb = new StringBuffer();
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fileInputStream = new FileInputStream(htmlFilePath);
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BufferedReader br = new BufferedReader(new InputStreamReader(fileInputStream, "UTF-8"));
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String readStr = "";
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while ((readStr = br.readLine()) != null) {
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sb.append(readStr);
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}
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XMLWorkerHelper.getInstance().parseXHtml(writer, document, new ByteArrayInputStream(sb.toString().getBytes("Utf-8")), null, Charset.forName("UTF-8"));
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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if (null != document) {
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document.close();
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}
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if (null != writer) {
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writer.close();
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}
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if (null != fileInputStream) {
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try {
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fileInputStream.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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if (null != fileOutputStream) {
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try {
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fileOutputStream.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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return true;
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}
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/**
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* docx转pdf
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* @param pdfSaveDirectory:文件保存目录，例：D:\\pdf\\
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* @param fileName：保存的文件名称，例：test.pdf
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* @param docxFile：需要转换的docx文件
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* @return
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*/
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private static boolean docxConvertToPDF(String pdfSaveDirectory,String fileName,File docxFile) {
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// 不存在则新建
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File directory = new File(pdfSaveDirectory);
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if (!directory.exists()) {
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directory.mkdirs();
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}
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String pdfFilePath = pdfSaveDirectory + fileName;
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File outputFile = new File(pdfFilePath);
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try {
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InputStream docxInputStream = Files.newInputStream(docxFile.toPath());
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OutputStream outputStream = Files.newOutputStream(outputFile.toPath());
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IConverter converter = LocalConverter.builder().build();
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converter.convert(docxInputStream).as(DocumentType.DOCX).to(outputStream).as(DocumentType.PDF).execute();
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docxInputStream.close();
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outputStream.close();
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} catch (Exception e) {
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return false;
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}
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return true;
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}
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public static void main(String[] args) {
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try {
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String pdfFile = "D:\\test2.pdf";
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String htmlContent1 = "<h1>夫士大夫士大夫发</h1><p>会见韩国机构行家</p ><h2>地方鬼地方鬼地方三个广泛的</h2>";
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String htmlContent = "<html><body style=\"font-size:12.0pt; font-family:宋体\">" + "<h1>夫士大夫士大夫发</h1><p>会见韩国机构行家</p ><h2>地方鬼地方鬼地方三个广泛的</h2></body></html>";
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String htmlContent2 = "<html><body >" + "<h1>夫士大夫士大夫发</h1><p>会见韩国机构行家</p ><h2>地方鬼地方鬼地方三个广泛的</h2></body></html>";
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htmlStringConvertToPDF(pdfFile,htmlContent);
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// parseHtml2PdfByFilePath(pdfFile,htmlFile);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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