使用Libreoffice处理office文档，OFFICE转PDF，OFFICE转图片，OFFICE转图片包含加水印逻辑
主要逻辑为office转pdf
office转图片实际上是先转为pdf再利用另外一个工具类转为图片
转图片工具类请看另一篇文章
import org.apache.commons.lang3.StringUtils; import org.artofsolving.jodconverter.OfficeDocumentConverter; import org.artofsolving.jodconverter.office.DefaultOfficeManagerConfiguration; import org.artofsolving.jodconverter.office.OfficeManager; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import javax.annotation.PostConstruct; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; import java.util.regex.Pattern; /** * OfficeOperatingUtil 说明: word文件转换成pdf文件(必须安装Openoffice或LiberOffice) */ public class OfficeOperatingUtil { static OfficeManager officeManager; private static ReentrantLock OfficeLock = new ReentrantLock(); @PostConstruct public void init() { DefaultOfficeManagerConfiguration config = new DefaultOfficeManagerConfiguration(); // 设置LibreOffice的安装目录 config.setOfficeHome(getOfficeHome()); // 启动LibreOffice的服务 OfficeManager getOfficeManager = config.buildOfficeManager(); if (getOfficeManager == null) { getOfficeManager.start(); } officeManager = getOfficeManager; } private static Logger logger = LoggerFactory.getLogger(OfficeOperatingUtil.class); /** * 锁 */ private static Lock lock = new ReentrantLock(); /** * windows下openoffice或LiberOffice安装地址 */ private static String windowsOpenOfficeUrl = "C:\\Program Files\\LibreOffice"; /** * linux下openoffice或LiberOffice安装地址 */ private static String linuxOpenOfficeUrl = "/opt/libreoffice6"; /** * mac下opneoffice安装地址 */ private static String macOpenofficeUrl = "/Applications/OpenOffice.org.app/Contents/"; /** * 使Office2003-2007全部格式的文档(.doc|.docx|.xls|.xlsx|.ppt|.pptx) 转化为pdf文件 无加水印逻辑 * * @param inputFilePath 输入文件路径 * @param outputFilePath 输出文件路径 * @return 返回转换后文件路径 * @throws Exception */ public static String officeToPdf(String inputFilePath, String outputFilePath) throws Exception { try { if (officeManager == null) { // 如果LibreOffice中途关闭了 再次启动 防止报错 officeManager = getOfficeManager(); } if (StringUtils.isEmpty(inputFilePath)) { logger.info("输入文件地址为空，转换终止!"); return null; } File inputFile = new File(inputFilePath); // 转换后的pdf文件 File outputFile = new File(outputFilePath); if (!inputFile.exists()) { logger.info("输入文件不存在，转换终止!"); return null; } // 连接LibreOffice OfficeDocumentConverter converter = new OfficeDocumentConverter(officeManager); return converterFile(inputFile, outputFilePath, inputFilePath, converter); } catch (Exception e) { logger.error("word转化pdf出错!", e); throw e; } } /** * office转图片，加水印，如果不传则不加，两个水印参数都有则取图片 * * @param inputFilePath office文件路径 * @param strWatermark 文字水印 * @param imgWatermarkPath 图片水印图片的路径 * @param pageList 水印添加的页码（传空则全部页码添加水印） * @return */ public static List<String> officeToImg(String inputFilePath, String strWatermark, String imgWatermarkPath, ArrayList<String> pageList) { try { // word转成pdf String tempOutputFilePath = getTempOutputFilePath(inputFilePath); String tempPdfFilePath = officeToPdf(inputFilePath, tempOutputFilePath); // pdf加水印 String waterPdfPath = tempPdfFilePath; if (StringUtils.isNotEmpty(imgWatermarkPath)) { waterPdfPath = getOutputFilePath(inputFilePath); if (!WatermarkUtil.setImgWatermark2PDFByPage(inputFilePath, waterPdfPath, imgWatermarkPath, pageList)) { waterPdfPath = tempPdfFilePath;// 添加失败 } } else { if (StringUtils.isNotEmpty(strWatermark)) { waterPdfPath = getOutputFilePath(inputFilePath); if (!WatermarkUtil.setStrWatermark2PDFByPage(inputFilePath, waterPdfPath, strWatermark, pageList)) { waterPdfPath = tempPdfFilePath;// 添加失败 } } } // pdf转图片 List<String> iamgeFilePath = PdfToImageUtil.pdfToIamge(waterPdfPath); for (String string : iamgeFilePath) { logger.info("图片地址:" + string); } // 删除pdf文件 new File(tempPdfFilePath).delete(); new File(waterPdfPath).delete(); return iamgeFilePath; } catch (Exception e) { logger.error("word转化图片出错!", e); return null; } } /** * 获取输出pdf文件路径，如："e:/test.doc"返回"e:/test.pdf" * * @param inputFilePath * @return */ public static String getOutputFilePath(String inputFilePath) { String outputFilePath = inputFilePath.replaceAll("." + getPostfix(inputFilePath), ".pdf"); return outputFilePath; } /** * 获取临时PDF输出文件路径，如："e:/test.doc"返回"e:/testtemp.pdf" * * @param inputFilePath * @return */ public static String getTempOutputFilePath(String inputFilePath) { String outputFilePath = inputFilePath.replaceAll("." + getPostfix(inputFilePath), "temp.pdf"); return outputFilePath; } /** * 获取inputFilePath的后缀名，如："e:/test.pptx"的后缀名为："pptx" * * @param inputFilePath * @return */ public static String getPostfix(String inputFilePath) { return inputFilePath.substring(inputFilePath.lastIndexOf(".") + 1); } /** * 连接LibreOffice.org 并且启动LibreOffice.org * * @return */ public static OfficeManager getOfficeManager() { DefaultOfficeManagerConfiguration config = new DefaultOfficeManagerConfiguration(); // 设置LibreOffice.org 3的安装目录 config.setOfficeHome(getOfficeHome()); // 端口号 config.setPortNumber(8100); config.setTaskExecutionTimeout(1000 * 60 * 25L); // 设置任务执行超时为10分钟 config.setTaskQueueTimeout(1000 * 60 * 60 * 24L); // 设置任务队列超时为24小时 // 启动LibreOffice的服务 OfficeManager getOfficeManager = config.buildOfficeManager(); getOfficeManager.start(); return getOfficeManager; } /** * 根据操作系统的名称，获取LibreOffice.org 3的安装目录<br> * 如我的LibreOffice.org 3安装在：C:/Program Files (x86)/LibreOffice.org 3<br> * * @return LibreOffice.org 3的安装目录 */ public static String getOfficeHome() { String osName = System.getProperty("os.name"); logger.info("操作系统名称:" + osName); if (Pattern.matches("Linux.*", osName)) { return linuxOpenOfficeUrl; } else if (Pattern.matches("Windows.*", osName)) { return windowsOpenOfficeUrl; } else if (Pattern.matches("Mac.*", osName)) { return macOpenofficeUrl; } return null; } /** * 文件转换方法 * * @param inputFile 输入文件 * @param outputFilePath_end 输出文件路径 * @param inputFilePath 输入文件路径 * @param converter 转换器对象 * @return * @throws Exception */ public static String converterFile(File inputFile, String outputFilePath_end, String inputFilePath, OfficeDocumentConverter converter) throws Exception { File outputFile = new File(outputFilePath_end); // 假如目标路径不存在,则新建该路径 if (!outputFile.getParentFile().exists()) { outputFile.getParentFile().mkdirs(); } // 判断转换文件的编码方式，如果不是UTF-8，则改为UTF-8编码 converter.convert(inputFile, outputFile); logger.info("文件：" + inputFilePath + "\n转换为\n目标文件：" + outputFile + "\n成功!"); if (outputFile.isFile() && outputFile.exists()) { return outputFilePath_end; } else { throw new Exception("转换的目标文件不存在 路径" + outputFilePath_end); } } public void setLinuxOpenOfficeUrl(String linuxOpenOfficeUrl) { OfficeOperatingUtil.linuxOpenOfficeUrl = linuxOpenOfficeUrl; } public void setWindowsOpenOfficeUrl(String windowsOpenOfficeUrl) { OfficeOperatingUtil.windowsOpenOfficeUrl = windowsOpenOfficeUrl; } }
