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BAEL-3826: creating PDFs using Thymeleaf as template engine

This commit is contained in:
Cristian Rosu 2020-05-03 17:28:27 +03:00
parent 7b071a05e4
commit 05a4f60e38
3 changed files with 65 additions and 0 deletions
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10
pdf/pom.xml
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@ -60,6 +60,16 @@
<artifactId>poi-ooxml</artifactId>
<version>${poi-ooxml.version}</version>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf</artifactId>
<version>3.0.11.RELEASE</version>
</dependency>
<dependency>
<groupId>org.xhtmlrenderer</groupId>
<artifactId>flying-saucer-pdf</artifactId>
<version>9.1.20</version>
</dependency>
</dependencies>
<build>

48
pdf/src/main/java/com/baeldung/pdf/PDFThymeleafExample.java Normal file
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@ -0,0 +1,48 @@
package com.baeldung.pdf;
import com.lowagie.text.DocumentException;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;
import org.thymeleaf.templatemode.TemplateMode;
import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;
import org.xhtmlrenderer.pdf.ITextRenderer;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
public class PDFThymeleafExample {
public static void main(String[] args) throws IOException, DocumentException {
PDFThymeleafExample thymeleaf2Pdf = new PDFThymeleafExample();
String html = thymeleaf2Pdf.parseThymeleafTemplate();
thymeleaf2Pdf.generatePdfFromHtml(html);
}
public void generatePdfFromHtml(String html) throws IOException, DocumentException {
String outputFolder = System.getProperty("user.home") + File.separator + "thymeleaf.pdf";
OutputStream outputStream = new FileOutputStream(outputFolder);
ITextRenderer renderer = new ITextRenderer();
renderer.setDocumentFromString(html);
renderer.layout();
renderer.createPDF(outputStream);
outputStream.close();
}
private String parseThymeleafTemplate() {
ClassLoaderTemplateResolver templateResolver = new ClassLoaderTemplateResolver();
templateResolver.setSuffix(".html");
templateResolver.setTemplateMode(TemplateMode.HTML);
TemplateEngine templateEngine = new TemplateEngine();
templateEngine.setTemplateResolver(templateResolver);
Context context = new Context();
context.setVariable("to", "Baeldung.com");
return templateEngine.process("thymeleaf_template", context);
}
}

7
pdf/src/main/resources/thymeleaf_template.html Normal file
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@ -0,0 +1,7 @@
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<body>
<h3 style="text-align: center; color: green">
<span th:text="'Welcome to ' + ${to} + '!'"></span>
</h3>
</body>
</html>