server_commit

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zhaoxinyu
2024-10-22 11:15:39 +08:00
parent 2524a4328f
commit f44228d5c4
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package io.v.nutz.base.utils;
import fr.opensagres.poi.xwpf.converter.xhtml.XHTMLConverter;
import lombok.extern.slf4j.Slf4j;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.converter.WordToHtmlConverter;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFPictureData;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
import java.util.List;
/**
* @author jug
* @date 2024/02/29
*/
@Slf4j
public class WordUtil {
public static String checkConvert2Html(File file) throws Exception {
String fileName = file.getName().toLowerCase();
if (fileName.endsWith(".doc")) {
return doc2Html(file);
} else if (fileName.endsWith(".docx")) {
return docx2Html(file);
} else {
return "";
}
}
public static String doc2Html(File file) throws Exception {
try (FileInputStream inputStream = new FileInputStream(file)) {
HWPFDocument wordDocument = new HWPFDocument(inputStream);
WordToHtmlConverter converter = new WordToHtmlConverter(DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument());
converter.setPicturesManager((bytes, pictureType, s, v, v1) -> {
String type = pictureType.name();
return "data:image/" + type + ";base64," + Base64.getEncoder().encodeToString(bytes);
});
converter.processDocument(wordDocument);
Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.ENCODING, "utf-8");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty(OutputKeys.METHOD, "html");
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
transformer.transform(new DOMSource(converter.getDocument()), new StreamResult(outputStream));
return outputStream.toString(StandardCharsets.UTF_8);
} catch (Exception e) {
log.error("Error converting doc to html: " + e.getMessage());
throw e;
}
}
public static String docx2Html(File file) throws Exception {
try (FileInputStream inputStream = new FileInputStream(file);
XWPFDocument document = new XWPFDocument(inputStream)) {
List<XWPFPictureData> list = document.getAllPictures();
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
XHTMLConverter.getInstance().convert(document, outputStream, null);
String html = new String(outputStream.toByteArray());
Document doc = Jsoup.parse(html);
Elements elements = doc.getElementsByTag("img");
if (elements != null && elements.size() > 0 && list != null) {
for (Element element : elements) {
String src = element.attr("src");
for (XWPFPictureData data : list) {
if (src.contains(data.getFileName())) {
String type = src.substring(src.lastIndexOf(".") + 1);
String base64 = "data:image/" + type + ";base64," + Base64.getEncoder().encodeToString(data.getData());
element.attr("src", base64);
break;
}
}
}
}
return doc.html();
} catch (Exception e) {
log.error("Error converting docx to html: " + e.getMessage());
throw e;
}
}
}
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