java实现在线预览txt转pdf

java实现在线预览txt转pdf

首先引入itext的jar包

<dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itextpdf</artifactId>
            <version>5.5.13.1</version>
</dependency>

传入txt和pdf路径，设置pdf中字体

public class Fileconversion {
    private static final String FONT = "C:\\Windows\\Fonts\\STFANGSO.TTF";
    public static void texttopdf(String text, String pdf) throws DocumentException, IOException {
        Document document = new Document();
        OutputStream os = new FileOutputStream(new File(pdf));
        PdfWriter.getInstance(document, os);
        document.open();
        BaseFont baseFont = BaseFont.createFont(FONT, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
        Font font = new Font(baseFont);
        InputStreamReader isr = new InputStreamReader(new FileInputStream(new File(text)), "GBK");
        BufferedReader bufferedReader = new BufferedReader(isr);
        String str = "";
        while ((str = bufferedReader.readLine()) != null) {
            document.add(new Paragraph(str, font));
        }
        document.close();
    }