html转pdf

<dependency>
   <groupId>net.sourceforge.htmlcleaner</groupId>
   <artifactId>htmlcleaner</artifactId>
   <version>2.15</version>
</dependency>

<dependency>
   <groupId>org.xhtmlrenderer</groupId>
   <artifactId>flying-saucer-pdf-itext5</artifactId>
   <version>9.0.7</version>
</dependency>

<dependency>
   <groupId>com.itextpdf</groupId>
   <artifactId>itextpdf</artifactId>
   <version>5.4.3</version>
</dependency>

public class HtmlUrlToPdfUtil {

private static final Logger logger = LoggerFactory.getLogger(HtmlUrlToPdfUtil.class);


/**
* 下載url html to pdf @throws
*/
public static void urlToPdf(HttpServletResponse response, String url, String fileName) {
ByteArrayOutputStream out = null;
HtmlCleaner cleaner = null;
try {
if (null == url || "".equals(url) || null == fileName || "".equals(fileName)) {
String data = new String("参数不正确，无法进行导出您需要的文件!");
response.setCharacterEncoding("gbk");
response.setHeader("contentType", "text/html; charset=gbk");
response.getOutputStream().write(data.getBytes("gbk"));
response.flushBuffer();
return;
}
out = new ByteArrayOutputStream();
cleaner = new HtmlCleaner();
CleanerProperties props = cleaner.getProperties();
// 根据 String 表示形式创建 URL 对象。
URL htmlUrl = new URL(url);
// 返回一个 URLConnection 对象，它表示到 URL 所引用的远程对象的连接。
HttpURLConnection conn = (HttpURLConnection) htmlUrl.openConnection();
ByteArrayOutputStream outHtml = new ByteArrayOutputStream();
InputStream inn = conn.getInputStream();
byte[] buffer = new byte[1024];
int len = 0;
while ((len = inn.read(buffer)) != -1) {
outHtml.write(buffer, 0, len);
}
byte[] data = outHtml.toByteArray();
logger.info("获取时utf-8：" + new String(data, "utf-8"));
TagNode node = cleaner.clean(new String(data, "utf-8"));
new PrettyXmlSerializer(props).writeToStream(node, out, "utf-8");
ITextRenderer renderer = new ITextRenderer();
renderer.setDocumentFromString(new String(out.toByteArray(), "utf-8"));
ITextFontResolver fontResolver = renderer.getFontResolver();
// 中文字体
fontResolver.addFont("/com/tontisa/erp/font/simsun.ttc", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
renderer.layout();
// 设置响应文档类型为pdf
response.setContentType("application/pdf;charset=utf-8");
response.addHeader("Content-Disposition", "attachment; filename=" + fileName.replaceAll(" ", ""));
renderer.createPDF(response.getOutputStream());
// 设置响应数据大小
// Finishing up
renderer.finishPDF();
response.flushBuffer();
out.flush();
out.close();
outHtml.flush();
outHtml.close();
} catch (Exception e) {
logger.error("urlToPdf异常", e);
}
}


/**
* 下載 String html content to pdf @throws
*/
public static void htmlToPdf(HttpServletResponse response, String html, String fileName) {
ByteArrayOutputStream out = null;
HtmlCleaner cleaner = null;
try {
if (null == html || "".equals(html) || null == fileName || "".equals(fileName)) {
String data = new String("参数不正确，无法进行导出您需要的文件!");
response.setCharacterEncoding("gbk");
response.setHeader("contentType", "text/html; charset=gbk");
response.getOutputStream().write(data.getBytes("gbk"));
response.flushBuffer();
return;
}
out = new ByteArrayOutputStream();
cleaner = new HtmlCleaner();
CleanerProperties props = cleaner.getProperties();
// 根据 String 表示形式创建 URL 对象。
logger.info("获取时utf-8：" + html);
TagNode node = cleaner.clean(html);
new PrettyXmlSerializer(props).writeToStream(node, out, "utf-8");
ITextRenderer renderer = new ITextRenderer();
renderer.setDocumentFromString(new String(out.toByteArray(), "utf-8"));
ITextFontResolver fontResolver = renderer.getFontResolver();
// 中文字体
fontResolver.addFont("/com/tontisa/erp/font/simsun.ttc", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
renderer.layout();
// 设置响应文档类型为pdf
response.setContentType("application/pdf;charset=utf-8");
response.addHeader("Content-Disposition", "attachment; filename=" + fileName.replaceAll(" ", ""));
renderer.createPDF(response.getOutputStream());
// 设置响应数据大小
// Finishing up
renderer.finishPDF();
response.flushBuffer();
out.flush();
out.close();
} catch (Exception e) {
logger.error("htmlToPdf异常", e);
}
}


@SuppressWarnings("resource")
public static void main(String[] args) throws Exception {


try {
HtmlCleaner cleaner = new HtmlCleaner();
CleanerProperties props = cleaner.getProperties();
System.out.println("----------");
InputStream inputStream = new FileInputStream("D:\\111.html");
String encoding = System.getProperty("file.encoding");
System.out.println(encoding);
ByteArrayOutputStream outHtml = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
while ((len = inputStream.read(buffer)) != -1) {
outHtml.write(buffer, 0, len);
}
byte[] data = outHtml.toByteArray();
logger.info("转换前utf-8:" + new String(data, "utf-8"));


TagNode node = cleaner.clean(new String(data, "utf-8"));
ByteArrayOutputStream out = new ByteArrayOutputStream();
new PrettyXmlSerializer(props).writeToStream(node, out, "utf-8");
ITextRenderer renderer = new ITextRenderer();
renderer.setDocumentFromString(new String(out.toByteArray(), "utf-8"));
ITextFontResolver fontResolver = renderer.getFontResolver();
fontResolver.addFont("/com/tontisa/erp/font/simsun.ttc", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
renderer.layout();
OutputStream outputStream = new FileOutputStream("D:/HTMLTOPDF" + (new Date()).getTime() + ".pdf");
renderer.createPDF(outputStream);
renderer.finishPDF();
out.flush();
out.close();
} catch (Exception e) {
logger.error("htmltopfd异常", e);
}
}
}