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Java 使用iText将html转换为pdf

java itext

Java 使用iText将html转换为pdf,java,itext,Java,Itext,我想使用iText将带有图像的html文件转换为pdf。我在这里提供我的来源 这是我的HTML文件 <html> <body> <img src='data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAD4AAABQCAMAAAB24TZcAAAABGdBTUEAANbY1E9YMgAAABl0RVh0U29mdHdhcmUAQWRvYmUgSW1hZ2VSZWFkeXHJZTwAAAGAUExURdSmeJp2SHl

我想使用iText将带有图像的html文件转换为pdf。我在这里提供我的来源

这是我的HTML文件

 <html>

 <body>
 <img src='data:image/png;base64,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' width='62' height='80' style='float: left; margin-right: 28px;' alt="" /> 
<!-- <img src="add.png" alt="" /> -->  
</body>
</html>
我收到以下错误

Exception in thread "main" ExceptionConverter: java.io.IOException: The document has no pages.
at com.itextpdf.text.pdf.PdfPages.writePageTree(PdfPages.java:113)
at com.itextpdf.text.pdf.PdfWriter.close(PdfWriter.java:1243)
at com.itextpdf.text.pdf.PdfDocument.close(PdfDocument.java:849)
at com.itextpdf.text.Document.close(Document.java:416)
at App.main(App.java:64)
请帮助我如何使用itext将带有图像的html文件转换为pdf。如果我没有图像，或者如果我硬编码图像路径，我可以转换html文件。提前感谢

如果您的
pdf
页面中没有内容，则会发生此异常。 试着像这样传递您的
InputStream

String str="<html>

 <body>
 <img src='data:image/png;base64,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' width='62' height='80' style='float: left; margin-right: 28px;' alt="" /> 
<!-- <img src="add.png" alt="" /> -->  
</body>
</html>"

InputStream is = new ByteArrayInputStream(str.getBytes());
XMLWorkerHelper.getInstance().parseXHtml(writer, document, is);

String str=”
"
InputStream is=newbytearrayinputstream（str.getBytes（））；
XMLWorkerHelper.getInstance（）.parseXHtml（编写器、文档、is）；
您需要实现一个自定义图像标记处理器来处理嵌入html中的图像：

package com.example.itext.processor;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import com.itextpdf.text.Chunk;
import com.itextpdf.text.Element;
import com.itextpdf.text.Image;
import com.itextpdf.text.log.Level;
import com.itextpdf.text.log.Logger;
import com.itextpdf.text.log.LoggerFactory;
import com.itextpdf.text.pdf.codec.Base64;
import com.itextpdf.tool.xml.NoCustomContextException;
import com.itextpdf.tool.xml.Tag;
import com.itextpdf.tool.xml.WorkerContext;
import com.itextpdf.tool.xml.exceptions.LocaleMessages;
import com.itextpdf.tool.xml.exceptions.RuntimeWorkerException;
import com.itextpdf.tool.xml.html.HTML;
import com.itextpdf.tool.xml.pipeline.html.HtmlPipelineContext;

public class ImageTagProcessor extends com.itextpdf.tool.xml.html.Image {

private final Logger logger = LoggerFactory.getLogger(getClass());

/*
 * (non-Javadoc)
 * 
 * @see com.itextpdf.tool.xml.TagProcessor#endElement(com.itextpdf.tool.xml.Tag, java.util.List, com.itextpdf.text.Document)
 */
@Override
public List<Element> end(final WorkerContext ctx, final Tag tag, final List<Element> currentContent) {
    final Map<String, String> attributes = tag.getAttributes();
    String src = attributes.get(HTML.Attribute.SRC);
    List<Element> elements = new ArrayList<Element>(1);
    if (null != src && src.length() > 0) {
        Image img = null;
        if (src.startsWith("data:image/")) {
            final String base64Data = src.substring(src.indexOf(",") + 1);
            try {
                img = Image.getInstance(Base64.decode(base64Data));
            } catch (Exception e) {
                if (logger.isLogging(Level.ERROR)) {
                    logger.error(String.format(LocaleMessages.getInstance().getMessage(LocaleMessages.HTML_IMG_RETRIEVE_FAIL), src), e);
                }
            }
            if (img != null) {
                try {
                    final HtmlPipelineContext htmlPipelineContext = getHtmlPipelineContext(ctx);
                    elements.add(getCssAppliers().apply(new Chunk((com.itextpdf.text.Image) getCssAppliers().apply(img, tag, htmlPipelineContext), 0, 0, true), tag,
                        htmlPipelineContext));
                } catch (NoCustomContextException e) {
                    throw new RuntimeWorkerException(e);
                }
            }
        }

        if (img == null) {
            elements = super.end(ctx, tag, currentContent);
        }
    }
    return elements;
}
}

package com.example.itext.processor；
导入java.util.ArrayList；
导入java.util.List；
导入java.util.Map；
导入com.itextpdf.text.Chunk；
导入com.itextpdf.text.Element；
导入com.itextpdf.text.Image；
导入com.itextpdf.text.log.Level；
导入com.itextpdf.text.log.Logger；
导入com.itextpdf.text.log.LoggerFactory；
导入com.itextpdf.text.pdf.codec.Base64；
导入com.itextpdf.tool.xml.NoCustomContextException；
导入com.itextpdf.tool.xml.Tag；
导入com.itextpdf.tool.xml.WorkerContext；
导入com.itextpdf.tool.xml.exceptions.LocaleMessages；
导入com.itextpdf.tool.xml.exceptions.RuntimeWorkerException；
导入com.itextpdf.tool.xml.html.html；
导入com.itextpdf.tool.xml.pipeline.html.HtmlPipelineContext；
公共类ImageTagProcessor扩展com.itextpdf.tool.xml.html.Image{
私有最终记录器Logger=LoggerFactory.getLogger（getClass（））；
/*
*（非Javadoc）
* 
*@请参阅com.itextpdf.tool.xml.TagProcessor#endElement（com.itextpdf.tool.xml.Tag、java.util.List、com.itextpdf.text.Document）
*/
@凌驾
公共列表结束（最终WorkerContext ctx、最终标记标签、最终列表内容）{
最终映射属性=tag.getAttributes（）；
字符串src=attributes.get（HTML.Attribute.src）；
列表元素=新的ArrayList（1）；
if（null！=src&&src.length（）>0）{
图像img=null；
if（src.startsWith（“数据：image/”）{
最终字符串base64Data=src.substring（src.indexOf（“，”）+1）；
试一试{
img=Image.getInstance（Base64.decode（base64Data））；
}捕获（例外e）{
if（记录器isLogging（级别错误））{
错误（String.format（LocaleMessages.getInstance（）.getMessage（LocaleMessages.HTML\u IMG\u RETRIEVE\u FAIL），src），e）；
}
}
如果（img！=null）{
试一试{
最终HtmlPipelineContext HtmlPipelineContext=getHtmlPipelineContext（ctx）；
elements.add（getCssAppliers（）.apply（新块（（com.itextpdf.text.Image）getCssAppliers（）.apply（img，tag，htmlPipelineContext），0，0，true），tag，
htmlPipelineContext）；
}捕获（NoCustomContextException e）{
抛出新的RuntimeWorkerException（e）；
}
}
}
如果（img==null）{
elements=super.end（ctx、tag、currentContent）；
}
}
返回元素；
}
}
下面的代码片段注册自定义图像标记处理器，并将HTML文档转换为PDF

public static void main(String[] args) {
    convertHtmlToPdf();

}

private static void convertHtmlToPdf() {
    try {
        final OutputStream file = new FileOutputStream(new File("C:\\Test.pdf"));
        final Document document = new Document();
        final PdfWriter writer = PdfWriter.getInstance(document, file);
        document.open();
        final TagProcessorFactory tagProcessorFactory = Tags.getHtmlTagProcessorFactory();
        tagProcessorFactory.removeProcessor(HTML.Tag.IMG);
        tagProcessorFactory.addProcessor(new ImageTagProcessor(), HTML.Tag.IMG);

        final CssFilesImpl cssFiles = new CssFilesImpl();
        cssFiles.add(XMLWorkerHelper.getInstance().getDefaultCSS());
        final StyleAttrCSSResolver cssResolver = new StyleAttrCSSResolver(cssFiles);
        final HtmlPipelineContext hpc = new HtmlPipelineContext(new CssAppliersImpl(new XMLWorkerFontProvider()));
        hpc.setAcceptUnknown(true).autoBookmark(true).setTagFactory(tagProcessorFactory);
        final HtmlPipeline htmlPipeline = new HtmlPipeline(hpc, new PdfWriterPipeline(document, writer));
        final Pipeline<?> pipeline = new CssResolverPipeline(cssResolver, htmlPipeline);
        final XMLWorker worker = new XMLWorker(pipeline, true);
        final Charset charset = Charset.forName("UTF-8");
        final XMLParser xmlParser = new XMLParser(true, worker, charset);
        final InputStream is = new FileInputStream("C:\\test.html");
        xmlParser.parse(is, charset);

        is.close();
        document.close();
        file.close();
    } catch (Exception e) {
        e.printStackTrace();
        // TODO
    }
}

publicstaticvoidmain（字符串[]args）{
convertHtmlToPdf（）；
}
私有静态void convertHtmlToPdf（）{
试一试{
最终输出流文件=新文件输出流（新文件（“C:\\Test.pdf”）；
最终文件=新文件（）；
final PdfWriter writer=PdfWriter.getInstance（文档、文件）；
document.open（）；
final TagProcessorFactory TagProcessorFactory=Tags.getHtmlTagProcessorFactory（）；
tagProcessorFactory.removeProcessor（HTML.Tag.IMG）；
tagProcessorFactory.addProcessor（新的ImageTagProcessor（），HTML.Tag.IMG）；
final cssfilesiml cssFiles=新的cssfilesiml（）；
添加（XMLWorkerHelper.getInstance（）.getDefaultCSS（））；
最终样式AttrCSSresolver cssResolver=新样式AttrCSSresolver（cssFiles）；
final HtmlPipelineContext hpc=新的HtmlPipelineContext（新的CssAppliersImpl（新的XMLWorkerFontProvider（））；
hpc.setAcceptUnknown（true）.autoBookmark（true）.setTagFactory（tagProcessorFactory）；
最终HtmlPipeline HtmlPipeline=新HtmlPipeline（hpc、新PdfWriterPipeline（文档、编写器））；
最终管道=新的cssResolver管道（cssResolver，htmlPipeline）；
最终XMLWorker=新XMLWorker（管道，true）；
最终字符集Charset=Charset.forName（“UTF-8”）；
final XMLParser=new XMLParser（true，worker，charset）；
最终输入流为=新文件输入流（“C:\\test.html”）；
parse（is，charset）；
is.close（）；
document.close（）；
file.close（）；
}捕获（例外e）{
e、 printStackTrace（）；
//待办事项
}
}

public static void main(String[] args) {
    convertHtmlToPdf();

}

private static void convertHtmlToPdf() {
    try {
        final OutputStream file = new FileOutputStream(new File("C:\\Test.pdf"));
        final Document document = new Document();
        final PdfWriter writer = PdfWriter.getInstance(document, file);
        document.open();
        final TagProcessorFactory tagProcessorFactory = Tags.getHtmlTagProcessorFactory();
        tagProcessorFactory.removeProcessor(HTML.Tag.IMG);
        tagProcessorFactory.addProcessor(new ImageTagProcessor(), HTML.Tag.IMG);

        final CssFilesImpl cssFiles = new CssFilesImpl();
        cssFiles.add(XMLWorkerHelper.getInstance().getDefaultCSS());
        final StyleAttrCSSResolver cssResolver = new StyleAttrCSSResolver(cssFiles);
        final HtmlPipelineContext hpc = new HtmlPipelineContext(new CssAppliersImpl(new XMLWorkerFontProvider()));
        hpc.setAcceptUnknown(true).autoBookmark(true).setTagFactory(tagProcessorFactory);
        final HtmlPipeline htmlPipeline = new HtmlPipeline(hpc, new PdfWriterPipeline(document, writer));
        final Pipeline<?> pipeline = new CssResolverPipeline(cssResolver, htmlPipeline);
        final XMLWorker worker = new XMLWorker(pipeline, true);
        final Charset charset = Charset.forName("UTF-8");
        final XMLParser xmlParser = new XMLParser(true, worker, charset);
        final InputStream is = new FileInputStream("C:\\test.html");
        xmlParser.parse(is, charset);

        is.close();
        document.close();
        file.close();
    } catch (Exception e) {
        e.printStackTrace();
        // TODO
    }
}