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长不大的BEN 于 2021-02-24 10:01:54 发布 907 收藏 1 文章标签： java如何打开word文档 版权 我知道自从我发布这个问题以来已经很长时间了,我说我会在完成后发布我的解决方案. 所以在这里. 我希望有一天它会帮助某人. 这是一个完整的工作类,您只需将它放在应用程序中,并将TEMPLATE_DIRECTORY_ROOT目录与.docx模板放在根目录中. 用法很简单. 您将占位符(键)放在.docx文件中,然后传递文件名和包含该文件的相应键值对的Map. 请享用！ import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.BufferedReader; import java.io.Closeable; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.net.URI; import java.util.Deque; import java.util.Enumeration; import java.util.HashMap; import java.util.Iterator; import java.util.LinkedList; import java.util.Map; import java.util.UUID; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; import java.util.zip.ZipOutputStream; import javax.faces.context.ExternalContext; import javax.faces.context.FacesContext; import javax.servlet.http.HttpServletResponse; public class DocxManipulator { private static final String MAIN_DOCUMENT_PATH = "word/document.xml"; private static final String TEMPLATE_DIRECTORY_ROOT = "TEMPLATES_DIRECTORY/"; /* PUBLIC METHODS */ /** * Generates .docx document from given template and the substitution data * * @param templateName * Template data * @param substitutionData * Hash map with the set of key-value pairs that represent * substitution data * @return */ public static Boolean generateAndSendDocx(String templateName, Map substitutionData) { String templateLocation = TEMPLATE_DIRECTORY_ROOT + templateName; String userTempDir = UUID.randomUUID().toString(); userTempDir = TEMPLATE_DIRECTORY_ROOT + userTempDir + "/"; try { // Unzip .docx file unzip(new File(templateLocation), new File(userTempDir)); // Change data changeData(new File(userTempDir + MAIN_DOCUMENT_PATH), substitutionData); // Rezip .docx file zip(new File(userTempDir), new File(userTempDir + templateName)); // Send HTTP response sendDOCXResponse(new File(userTempDir + templateName), templateName); // Clean temp data deleteTempData(new File(userTempDir)); } catch (IOException ioe) { System.out.println(ioe.getMessage()); return false; } return true; } /* PRIVATE METHODS */ /** * Unzipps specified ZIP file to specified directory * * @param zipfile * Source ZIP file * @param directory * Destination directory * @throws IOException */ private static void unzip(File zipfile, File directory) throws IOException { ZipFile zfile = new ZipFile(zipfile); Enumeration extends ZipEntry> entries = zfile.entries(); while (entries.hasMoreElements()) { ZipEntry entry = entries.nextElement(); File file = new File(directory, entry.getName()); if (entry.isDirectory()) { file.mkdirs(); } else { file.getParentFile().mkdirs(); InputStream in = zfile.getInputStream(entry); try { copy(in, file); } finally { in.close(); } } } } /** * Substitutes keys found in target file with corresponding data * * @param targetFile * Target file * @param substitutionData * Map of key-value pairs of data * @throws IOException */ @SuppressWarnings({ "unchecked", "rawtypes" }) private static void changeData(File targetFile, Map substitutionData) throws IOException{ BufferedReader br = null; String docxTemplate = ""; try { br = new BufferedReader(new InputStreamReader(new FileInputStream(targetFile), "UTF-8")); String temp; while( (temp = br.readLine()) != null) docxTemplate = docxTemplate + temp; br.close(); targetFile.delete(); } catch (IOException e) { br.close(); throw e; } Iterator substitutionDataIterator = substitutionData.entrySet().iterator(); while(substitutionDataIterator.hasNext()){ Map.Entry pair = (Map.Entry)substitutionDataIterator.next(); if(docxTemplate.contains(pair.getKey())){ if(pair.getValue() != null) docxTemplate = docxTemplate.replace(pair.getKey(), pair.getValue()); else docxTemplate = docxTemplate.replace(pair.getKey(), "NEDOSTAJE"); } } FileOutputStream fos = null; try{ fos = new FileOutputStream(targetFile); fos.write(docxTemplate.getBytes("UTF-8")); fos.close(); } catch (IOException e) { fos.close(); throw e; } } /** * Zipps specified directory and all its subdirectories * * @param directory * Specified directory * @param zipfile * Output ZIP file name * @throws IOException */ private static void zip(File directory, File zipfile) throws IOException { URI base = directory.toURI(); Deque queue = new LinkedList(); queue.push(directory); OutputStream out = new FileOutputStream(zipfile); Closeable res = out; try { ZipOutputStream zout = new ZipOutputStream(out); res = zout; while (!queue.isEmpty()) { directory = queue.pop(); for (File kid : directory.listFiles()) { String name = base.relativize(kid.toURI()).getPath(); if (kid.isDirectory()) { queue.push(kid); name = name.endsWith("/") ? name : name + "/"; zout.putNextEntry(new ZipEntry(name)); } else { if(kid.getName().contains(".docx")) continue; zout.putNextEntry(new ZipEntry(name)); copy(kid, zout); zout.closeEntry(); } } } } finally { res.close(); } } /** * Sends HTTP Response containing .docx file to Client * * @param generatedFile * Path to generated .docx file * @param fileName * File name of generated file that is being presented to user * @throws IOException */ private static void sendDOCXResponse(File generatedFile, String fileName) throws IOException { FacesContext facesContext = FacesContext.getCurrentInstance(); ExternalContext externalContext = facesContext.getExternalContext(); HttpServletResponse response = (HttpServletResponse) externalContext .getResponse(); BufferedInputStream input = null; BufferedOutputStream output = null; response.reset(); response.setHeader("Content-Type", "application/msword"); response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\""); response.setHeader("Content-Length",String.valueOf(generatedFile.length())); input = new BufferedInputStream(new FileInputStream(generatedFile), 10240); output = new BufferedOutputStream(response.getOutputStream(), 10240); byte[] buffer = new byte[10240]; for (int length; (length = input.read(buffer)) > 0;) { output.write(buffer, 0, length); } output.flush(); input.close(); output.close(); // Inform JSF not to proceed with rest of life cycle facesContext.responseComplete(); } /** * Deletes directory and all its subdirectories * * @param file * Specified directory * @throws IOException */ public static void deleteTempData(File file) throws IOException { if (file.isDirectory()) { // directory is empty, then delete it if (file.list().length == 0) file.delete(); else { // list all the directory contents String files[] = file.list(); for (String temp : files) { // construct the file structure File fileDelete = new File(file, temp); // recursive delete deleteTempData(fileDelete); } // check the directory again, if empty then delete it if (file.list().length == 0) file.delete(); } } else { // if file, then delete it file.delete(); } } private static void copy(InputStream in, OutputStream out) throws IOException { byte[] buffer = new byte[1024]; while (true) { int readCount = in.read(buffer); if (readCount < 0) { break; } out.write(buffer, 0, readCount); } } private static void copy(File file, OutputStream out) throws IOException { InputStream in = new FileInputStream(file); try { copy(in, out); } finally { in.close(); } } private static void copy(InputStream in, File file) throws IOException { OutputStream out = new FileOutputStream(file); try { copy(in, out); } finally { out.close(); } } } ———————————————— 版权声明：本文为CSDN博主「长不大的BEN」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。 原文链接：https://blog.csdn.net/weixin_42345187/article/details/114557185 |
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