1.導出word
添加依賴
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.14</version>
</dependency>
實現層代碼
private void downloadWord(HttpServletResponse response, Resource resource) { String title = resource.getTitle(); String text = resource.getContent(); try { //word內容 String content="<html><body>" + "<p style=\"text-align: center;\"><span style=\"font-family: 黑體, SimHei; font-size: 24px;\">" + title + "</span></p>" + text + "</body></html>"; byte b[] = content.getBytes("GBK"); //這里是必須要設置編碼的，不然導出中文就會亂碼。 ByteArrayInputStream bais = new ByteArrayInputStream(b);//將字節數組包裝到流中 /* * 關鍵地方 * 生成word格式 */ POIFSFileSystem poifs = new POIFSFileSystem(); DirectoryEntry directory = poifs.getRoot(); DocumentEntry documentEntry = directory.createDocument("WordDocument", bais); //輸出文件 // request.setCharacterEncoding("utf-8"); response.setContentType("application/msword");//導出word格式 response.addHeader("Content-Disposition", "attachment;filename=" + new String(title.getBytes("GB2312"),"iso8859-1") + ".doc"); ServletOutputStream ostream = response.getOutputStream(); poifs.writeFilesystem(ostream); bais.close(); ostream.close(); poifs.close(); }catch(Exception e){ e.printStackTrace(); } }
2.導出pdf
添加依賴
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.11</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itext-asian</artifactId>
<version>5.2.0</version>
</dependency>
<dependency>
<groupId>com.itextpdf.tool</groupId>
<artifactId>xmlworker</artifactId>
<version>5.5.8</version>
</dependency>
壓縮並導出實現代碼
private void downloadPdf(HttpServletResponse response, Resource resource) { String content = resource.getContent(); content = MyUtil.handleConvertPdfContent(content); String rootDir = System.getProperty("user.dir")+"/"; String pdfDir = rootDir+"temp/pdf/"; String pdfFileName = resource.getTitle()+".pdf"; try { String path = pdfDir + pdfFileName; File pdfFileDir = new File(pdfDir); if (!pdfFileDir.exists()) { pdfFileDir.mkdirs(); } FileOutputStream pdfOut = new FileOutputStream(path); // 第一步 創建文檔實例 文章pdf導出+壓縮包下載 Document document = new Document(); // 第二步 獲取PdfWriter實例 寫入文件到目錄 pdfDir + responseFileName PdfWriter writer = PdfWriter.getInstance(document, pdfOut); // 第三步 打開文檔 document.open(); //獲取 XMLWorkerHelper實例 XMLWorkerHelper work = XMLWorkerHelper.getInstance(); //解析html文件,創建pdf文檔 work.parseXHtml(writer, document, new ByteArrayInputStream(content.getBytes())); // 第五部 操作完成后必須執行文檔關閉操作。 document.close(); writer.close(); pdfOut.close(); // 壓縮pdf文件 String zipDir = rootDir + "temp/zip/"; String zipPath = zipDir + resource.getTitle() + ".zip"; File zipFile = new File(zipPath); File pdfFile1 = new File(path); ZipUtil.zip(zipFile, false, pdfFile1); // 將zip file寫入response流 //設置response內容 String zipFileName = resource.getTitle() + ".zip"; // 這里中文名字導致了下載報錯 暫不解決 String responseFileName = new String("download.zip".getBytes(), "utf-8"); response.reset(); // 非常重要 ServletOutputStream responseOutputStream = response.getOutputStream(); response.setContentType("application/octet-stream; charset=utf-8"); response.setHeader("Content-Disposition", "attachment; filename=" + responseFileName); InputStream in = new FileInputStream(zipPath); int len = 0; byte[] buffer = new byte[1024]; while ((len = in.read(buffer)) > 0) { responseOutputStream.write(buffer, 0, len); } in.close(); responseOutputStream.close(); } catch (Exception e) { e.printStackTrace(); } finally { FileUtil.delAllFile(rootDir + "/temp"); } }