java使用xmlWorkerHelper将html转pdf

1、引入maven包

         <dependency>

                <groupId>com.itextpdf</groupId>

                <artifactId>itextpdf</artifactId>

                <version>5.5.12</version>

         </dependency>
        <dependency>

                <groupId>com.itextpdf.tool</groupId>

                <artifactId>xmlworker</artifactId>

                <version>5.5.8</version>

        </dependency>

2、编码示例：

import java.io.ByteArrayInputStream;

import java.io.FileOutputStream;

import java.io.InputStream;

import java.nio.charset.Charset;

import com.itextpdf.text.Document;

import com.itextpdf.text.PageSize;

import com.itextpdf.text.pdf.PdfWriter;

import com.itextpdf.tool.xml.XMLWorkerHelper;

public class XmlWorkerHelperUtil{

    public static void htmlToPDF(String htmlString,String pdfPath) {

        try {

            Document document = new Document(PageSize.A4);

            PdfWriter pdfWriter = PdfWriter.getInstance(document,

                    new FileOutputStream(pdfPath));

            document.open();

            document.addAuthor("pdf作者");

            document.addCreator("pdf创建者");

            document.addSubject("pdf主题");

            document.addCreationDate();

            document.addTitle("pdf标题,可在html中指定title");

            XMLWorkerHelper worker = XMLWorkerHelper.getInstance();

            InputStream inputStream=null;

            worker.parseXHtml(pdfWriter, document, new ByteArrayInputStream(htmlString.getBytes("UTF-8")),inputStream,Charset.forName("UTF-8"),new AsianFontProvider());

            document.close();

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

}

3、字体处理：

import com.itextpdf.text.Font;

import com.itextpdf.tool.xml.XMLWorkerFontProvider;

public class AsianFontProvider extends XMLWorkerFontProvider {

    @Override

    public Font getFont(final String fontname, String encoding, float size, final int style) {

        String fntname = fontname;

        if (fntname == null) {

           /*使用的windows里的宋体，可将其文件放资源文件中引入*/

            fntname = "fonts/simsun.ttc";

        }

        if (size == 0) {

            size = 4;

        }

        return super.getFont(fntname, encoding, size, style);

    }

}