檔案壓縮工具類
阿新 • • 發佈：2018-11-19
將檔案列表打包為zip
/** * 將拉取的檔案打包為zip * @param filePathList 檔案路徑列表 * @param savePath 儲存路徑 * @param zipName zip名稱 * @return zip路徑 */ public String generateZip(ArrayList<String>filePathList,String savePath,String zipName) throws IOException{ String zipPath=savePath+"/"+zipName; File zip =new File(zipPath); FileOutputStream outputStream=new FileOutputStream(zip); ZipOutputStream out =new ZipOutputStream(outputStream); filePathList.forEach(row->{ //要壓縮的單個檔案路徑 String oneFilePath = row; File inputFile = new File(oneFilePath); //生成zip包中的zip實體 ZipEntry zipEntry=new ZipEntry(inputFile.getName()); try { byte[] buffer = new byte[1024]; FileInputStream fileInputStream=new FileInputStream(oneFilePath); out.putNextEntry(zipEntry); int len; //讀入需要下載的檔案的內容，打包到zip檔案 while ((len = fileInputStream.read(buffer)) != -1) { out.write(buffer, 0, len); } fileInputStream.close(); }catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }); out.closeEntry(); out.close(); return zipPath; }