使用 flying-saucer-pdf 实现html转换pdf

 1 ?1 　　<dependency> 2 ?2 ????????????<groupId>com.itextpdf</groupId> 3 ?3 ????????????<artifactId>itextpdf</artifactId> 4 ?4 ????????????<version>5.5.13</version> 5 ?5 ????????</dependency> 6 ?6 ????????<dependency> 7 ?7 ????????????<groupId>com.itextpdf.tool</groupId> 8 ?8 ????????????<artifactId>xmlworker</artifactId> 9 ?9 ????????????<version>5.5.13</version>10 10 ????????</dependency>11 11 ????????<dependency>12 12 ????????????<groupId>com.itextpdf</groupId>13 13 ????????????<artifactId>itext-asian</artifactId>14 14 ????????????<version>5.2.0</version>15 15 ????????</dependency>16 16 ????????<dependency>17 17 ????????????<groupId>org.xhtmlrenderer</groupId>18 18 ????????????<artifactId>flying-saucer-pdf</artifactId>19 19 ????????????<version>9.0.3</version>20 20 ????????</dependency>

package pdf.kit;import com.itextpdf.text.*;import com.itextpdf.text.pdf.BaseFont;import com.itextpdf.text.pdf.PdfWriter;import com.itextpdf.tool.xml.Pipeline;import com.itextpdf.tool.xml.XMLWorker;import com.itextpdf.tool.xml.XMLWorkerFontProvider;import com.itextpdf.tool.xml.XMLWorkerHelper;import com.itextpdf.tool.xml.html.CssAppliers;import com.itextpdf.tool.xml.html.CssAppliersImpl;import com.itextpdf.tool.xml.html.Tags;import com.itextpdf.tool.xml.net.FileRetrieve;import com.itextpdf.tool.xml.net.ReadingProcessor;import com.itextpdf.tool.xml.parser.XMLParser;import com.itextpdf.tool.xml.pipeline.css.CSSResolver;import com.itextpdf.tool.xml.pipeline.css.CssResolverPipeline;import com.itextpdf.tool.xml.pipeline.end.PdfWriterPipeline;import com.itextpdf.tool.xml.pipeline.html.*;import org.apache.commons.io.FileUtils;import org.apache.commons.lang.StringUtils;import org.xhtmlrenderer.pdf.ITextFontResolver;import org.xhtmlrenderer.pdf.ITextRenderer;import java.io.*;import java.net.HttpURLConnection;import java.net.URL;import java.nio.charset.Charset;/** * html 转换成 pdf */public class ParseHtmlTable { ???public static final String pdfDestPath = "C:/Users/xxx-b/Desktop/pdf/"; ???public static final String htmlPath = "D:\\3-workspace\\pdf-test\\src\\test\\resources\\templates\\test.html"; ???public static void main(String[] args) throws IOException, DocumentException { ???????String pdfName = "test.pdf"; ???????ParseHtmlTable parseHtmlTable = new ParseHtmlTable(); ???????String htmlStr = FileUtils.readFileToString(new File(htmlPath)); ???????parseHtmlTable.html2pdf(htmlStr,pdfName ,"C:\\Windows\\Fonts"); ???} ???public void html2pdf(String html, String pdfName, String fontDir) { ???????try { ???????????ByteArrayOutputStream os = new ByteArrayOutputStream(); ???????????ITextRenderer renderer = new ITextRenderer(); ???????????ITextFontResolver fontResolver = (ITextFontResolver) renderer.getSharedContext().getFontResolver(); ???????????//添加字体库 begin ???????????File f = new File(fontDir); ???????????if (f.isDirectory()) { ???????????????File[] files = f.listFiles(new FilenameFilter() { ???????????????????public boolean accept(File dir, String name) { ???????????????????????String lower = name.toLowerCase(); ???????????????????????return lower.endsWith(".otf") || lower.endsWith(".ttf") || lower.endsWith(".ttc"); ???????????????????} ???????????????}); ???????????????for (int i = 0; i < files.length; i++) { ???????????????????fontResolver.addFont(files[i].getAbsolutePath(), BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED); ???????????????} ???????????} ???????????//添加字体库end ???????????renderer.setDocumentFromString(html); ???????????renderer.layout(); ???????????renderer.createPDF(os); ???????????renderer.finishPDF(); ???????????byte[] buff = os.toByteArray(); ???????????//保存到磁盘上 ???????????FileUtil.byte2File(buff,pdfDestPath,pdfName); ???????} catch (Exception e) { ???????????e.printStackTrace(); ???????} ???}}

package pdf.kit;import java.io.*;public class FileUtil { ???/** ????* 获得指定文件的byte数组 ????* ????* @param filePath 文件绝对路径 ????* @return ????*/ ???public static byte[] file2Byte(String filePath) { ???????ByteArrayOutputStream bos = null; ???????BufferedInputStream in = null; ???????try { ???????????File file = new File(filePath); ???????????if (!file.exists()) { ???????????????throw new FileNotFoundException("file not exists"); ???????????} ???????????bos = new ByteArrayOutputStream((int) file.length()); ???????????in = new BufferedInputStream(new FileInputStream(file)); ???????????int buf_size = 1024; ???????????byte[] buffer = new byte[buf_size]; ???????????int len = 0; ???????????while (-1 != (len = in.read(buffer, 0, buf_size))) { ???????????????bos.write(buffer, 0, len); ???????????} ???????????return bos.toByteArray(); ???????} catch (Exception e) { ???????????System.out.println(e.getMessage()); ???????????e.printStackTrace(); ???????????return null; ???????} finally { ???????????try { ???????????????if (in != null) { ???????????????????in.close(); ???????????????} ???????????????if (bos != null) { ???????????????????bos.close(); ???????????????} ???????????} catch (Exception e) { ???????????????System.out.println(e.getMessage()); ???????????????e.printStackTrace(); ???????????} ???????} ???} ???/** ????* 根据byte数组，生成文件 ????* ????* @param bfile ???文件数组 ????* @param filePath 文件存放路径 ????* @param fileName 文件名称 ????*/ ???public static void byte2File(byte[] bfile, String filePath, String fileName) { ???????BufferedOutputStream bos = null; ???????FileOutputStream fos = null; ???????File file = null; ???????try { ???????????File dir = new File(filePath); ???????????if (!dir.exists() && !dir.isDirectory()) {//判断文件目录是否存在 ???????????????dir.mkdirs(); ???????????} ???????????file = new File(filePath + fileName); ???????????fos = new FileOutputStream(file); ???????????bos = new BufferedOutputStream(fos); ???????????bos.write(bfile); ???????} catch (Exception e) { ???????????System.out.println(e.getMessage()); ???????????e.printStackTrace(); ???????} finally { ???????????try { ???????????????if (bos != null) { ???????????????????bos.close(); ???????????????} ???????????????if (fos != null) { ???????????????????fos.close(); ???????????????} ???????????} catch (Exception e) { ???????????????System.out.println(e.getMessage()); ???????????????e.printStackTrace(); ???????????} ???????} ???}}