网站多快能收录seo,网站logo下载,做淘宝客必须建网站吗,营销型网站定做最近做一个富文本的需求#xff0c;要求把文档内容转换到富文本内#xff0c;文档中的格式也好#xff0c;样式也好#xff0c;图片啥的都要一致展示#xff1b;踩了不少坑#xff0c;据说word文档其实是一个压缩包#xff0c;我不是特别清楚但是也能理解#xff0c;自… 最近做一个富文本的需求要求把文档内容转换到富文本内文档中的格式也好样式也好图片啥的都要一致展示踩了不少坑据说word文档其实是一个压缩包我不是特别清楚但是也能理解自己借鉴参考凑合看的大佬勿喷 啥都不说了看代码吧其中关于图片的导出有两种方式比较大的那种是用的jdk8自带的base
64搞的大小有差别同一个图片的话我这个实测的图片是差200k左右有要求的你可以换着来引用jar的引用pom中有 !--注意版本保持一致 poi poi-ooxml poi-scratchpad--dependencygroupIdorg.apache.poi/groupIdartifactIdpoi/artifactIdversion4.1.2/version/dependency!-- 操作doc ppt xls --dependencygroupIdorg.apache.poi/groupIdartifactIdpoi-scratchpad/artifactIdversion4.1.2/version/dependency!-- 操作docx pptx xlsx --dependencygroupIdorg.apache.poi/groupIdartifactIdpoi-ooxml/artifactIdversion4.1.2/version/dependencydependencygroupIdfr.opensagres.xdocreport/groupIdartifactIdfr.opensagres.poi.xwpf.converter.xhtml/artifactIdversion2.0.2/version/dependency import fr.opensagres.poi.xwpf.converter.core.BasicURIResolver;
import fr.opensagres.poi.xwpf.converter.core.FileImageExtractor;
import fr.opensagres.poi.xwpf.converter.xhtml.XHTMLConverter;
import fr.opensagres.poi.xwpf.converter.xhtml.XHTMLOptions;
import lombok.extern.slf4j.Slf4j;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.converter.WordToHtmlConverter;
import org.apache.poi.hwpf.usermodel.PictureType;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.springframework.web.multipart.MultipartFile;
import org.w3c.dom.Document;
import sun.misc.BASE64Encoder;import javax.imageio.ImageIO;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.Base64;/*** author Xiaoning Fan* date Created in 2023-10-16 下午 3:49* description 上传word文档并转换为html字符串返回保持样式不变图片替换为base64* version: 1.0*/
Slf4j
public class WordToHtmlStringConverter {/*** wordToHtml** return* throws IOException* throws ParserConfigurationException* throws TransformerException*/public static String wordToHtml(MultipartFile file) {
// 提取出word文档名称和后缀String filename file.getOriginalFilename();try {if (filename.endsWith(.docx)) {// 将上传的文件传入Document转换return new WordToHtmlStringConverter().docxToHtmlText(file);} else if (filename.endsWith(.doc)) {return new WordToHtmlStringConverter().docToHtmlText(file);} else {log.error(不支持的文件格式);return null;}} catch (FileNotFoundException e) {log.error(文件找不到异常);e.printStackTrace();} catch (IOException e) {log.error(io转换异常);e.printStackTrace();} catch (Exception e) {log.error(文件转换异常);e.printStackTrace();}return null;}/*** 上传Word文档返回解析后的Html*/public static String docToHtmlText(MultipartFile file) throws Exception {//使用字符数组流获取解析的内容ByteArrayOutputStream baos new ByteArrayOutputStream();OutputStream outStream new BufferedOutputStream(baos);try {//将上传的文件传入Document转换HWPFDocument wordDocument new HWPFDocument(file.getInputStream());Document document DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();WordToHtmlConverter wordToHtmlConverter new WordToHtmlConverter(document);//将读取到的图片上传并添加链接地址wordToHtmlConverter.setPicturesManager((imageStream, pictureType, name, width, height) - {try {//首先要判断图片是否能识别if (pictureType.equals(PictureType.UNKNOWN)) {return [不能识别的图片];}//此处转换图片文件为Base64return Base64.getEncoder().encodeToString(imageStream).trim();} catch (Exception e) {log.info(upload exception, e);}return [图片上传失败];});// word文档转Html文档wordToHtmlConverter.processDocument(wordDocument);Document htmlDocument wordToHtmlConverter.getDocument();DOMSource domSource new DOMSource(htmlDocument);StreamResult streamResult new StreamResult(outStream);TransformerFactory factory TransformerFactory.newInstance();Transformer serializer factory.newTransformer();serializer.setOutputProperty(OutputKeys.ENCODING, utf-8);serializer.setOutputProperty(OutputKeys.INDENT, yes);serializer.setOutputProperty(OutputKeys.METHOD, html);serializer.transform(domSource, streamResult);String content baos.toString();log.info(docToHtmlText---{}, content);return content;} catch (Exception e) {log.error(docToHtmlText 异常, e);} finally {baos.close();outStream.close();}return null;}/*** 上传docx文档返回解析后的Html*/public static String docxToHtmlText(MultipartFile file) throws Exception {ByteArrayOutputStream htmlStream new ByteArrayOutputStream();ByteArrayOutputStream htmlImg new ByteArrayOutputStream();String htmlStr null;try {// 将上传的文件传入Document转换XWPFDocument docxDocument new XWPFDocument(file.getInputStream());XHTMLOptions options XHTMLOptions.create();// 设置图片存储路径String path System.getProperty(java.io.tmpdir);String firstImagePathStr path / System.currentTimeMillis();options.setExtractor(new FileImageExtractor(new File(firstImagePathStr)));options.URIResolver(new BasicURIResolver(firstImagePathStr));// 转换htmldocxDocument.createNumbering();XHTMLConverter.getInstance().convert(docxDocument, htmlStream, options);htmlStr htmlStream.toString();String middleImageDirStr /word/media;String imageDirStr firstImagePathStr middleImageDirStr;File imageDir new File(imageDirStr);String[] imageList imageDir.list();if (imageList ! null) {for (int i 0; i imageList.length; i) {try {String oneImagePathStr imageDirStr / imageList[i];File fileImage new File(oneImagePathStr);if (fileImage.exists()) {log.info(处理图片开始。。。。。。。。);// 处理图片成为Base64格式// 读取图片字节数组InputStream in new FileInputStream(fileImage);byte[] data new byte[in.available()];in.read(data);String encode new BASE64Encoder().encode(data);log.info(处理图片结束。。。。。。。 encode);//修改文档中的图片信息htmlStr htmlStr.replace(oneImagePathStr, data:image/png;base64,encode);/* BufferedImage bi ImageIO.read(fileImage);// 图片存储大小比较大ByteArrayOutputStream baos new ByteArrayOutputStream();ImageIO.write(bi, png, baos);byte[] bytes baos.toByteArray();String sd Base64.getEncoder().encodeToString(bytes).trim();log.info(处理图片结束。。。。。。。 sd);htmlStr htmlStr.replace(oneImagePathStr, data:image/png;base64,sd);*/}} catch (Exception e) {log.info(upload docxToHtmlText exception, e);}}}log.info(处理结果{}, htmlStr);} catch (Exception e) {log.error(docxToHtmlText 解析异常, e);} finally {if (htmlStream ! null) {htmlStream.close();}return htmlStr;}}
}直接引用就行但是有一点一定要注意接口返回的时候如果直接返回页面接口上要加
ResponseBody不然就悲剧了当然如果直接存库的那就无所谓了 这次就先这样自娱自乐手下留情勿喷
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