How to generate pdf report using thymeleaf as template engine? [closed]

Answer 1

You'll need to use something like flying-saucer-pdf, create a component a bit like:

@Component
public class PdfGenaratorUtil {
    @Autowired
    private TemplateEngine templateEngine;
    public void createPdf(String templateName, Map map) throws Exception {
        Context ctx = new Context();
        Iterator itMap = map.entrySet().iterator();
        while (itMap.hasNext()) {
            Map.Entry pair = (Map.Entry) itMap.next();
            ctx.setVariable(pair.getKey().toString(), pair.getValue());
        }

        String processedHtml = templateEngine.process(templateName, ctx);
        FileOutputStream os = null;
        String fileName = UUID.randomUUID().toString();
        try {
            final File outputFile = File.createTempFile(fileName, ".pdf");
            os = new FileOutputStream(outputFile);

            ITextRenderer renderer = new ITextRenderer();
            renderer.setDocumentFromString(processedHtml);
            renderer.layout();
            renderer.createPDF(os, false);
            renderer.finishPDF();

        }
        finally {
            if (os != null) {
                try {
                    os.close();
                } catch (IOException e) { /*ignore*/ }
            }
        }
    }
}

Then simply @Autowire this component in to your controller/service component and do something like:

Map data = new HashMap();
    data.put("name","James");
    pdfGenaratorUtil.createPdf("greeting",data); 

where "greeting" is the name of your template

See http://www.oodlestechnologies.com/blogs/How-To-Create-PDF-through-HTML-Template-In-Spring-Boot for details