项目中遇到了需要把用户上传的word，execl，ppt每页截图保存。需要先用到jacob把资源转换为pdf，在通过pdf-renderer把每页截图下来。
下载相关的jar包：/download/papima/10208770
import java.io.File;import java.util.Date;import com.jacob.activeX.ActiveXComponent;import .ComThread;import .Dispatch;import .Variant;public class Word2PDF {private static final int wdFormatPDF = 17;private static final int xlTypePDF = 0;private static final int ppSaveAsPDF = 32;public static void main(String[] args) {// int time = convert2PDF("E:/aaaa.doc", "E:/临时文件.pdf");int time = convert2PDF("E:/培训考试系统功能开发 - V1.0.xls", "E:/临时文件1.pdf");/* int time = convert2PDF("E:/ccccc.ppt", "E:/临时文件2.pdf");*/if (time == -4) {System.out.println("转化失败，未知错误...");} else if(time == -3) {System.out.println("原文件就是PDF文件,无需转化...");} else if (time == -2) {System.out.println("转化失败，文件不存在...");}else if(time == -1){System.out.println("转化失败，请重新尝试...");}else if (time < -4) {System.out.println("转化失败，请重新尝试...");}else {System.out.println("转化成功，用时： " + time + "s...");}}/**** 判断需要转化文件的类型（Excel、Word、ppt）* * @param inputFile* @param pdfFile*/private static int convert2PDF(String inputFile, String pdfFile) {String kind = getFileSufix(inputFile);File file = new File(inputFile);if (!file.exists()) {return -2;//文件不存在}if (kind.equals("pdf")) {return -3;//原文件就是PDF文件}if (kind.equals("doc")||kind.equals("docx")||kind.equals("txt")) {return Word2PDF.word2PDF(inputFile, pdfFile);}else if (kind.equals("ppt")||kind.equals("pptx")) {return Word2PDF.ppt2PDF(inputFile, pdfFile);}else if(kind.equals("xls")||kind.equals("xlsx")){return Word2PDF.Ex2PDF(inputFile, pdfFile);}else {return -4;}}/**** 判断文件类型* * @param fileName* @return*/public static String getFileSufix(String fileName) {int splitIndex = fileName.lastIndexOf(".");return fileName.substring(splitIndex + 1);}/**** * Word转PDF* * @param inputFile* @param pdfFile* @return*/private static int word2PDF(String inputFile, String pdfFile) {// TODO Auto-generated method stubtry {// 打开Word应用程序ActiveXComponent app = new ActiveXComponent("Word.Application");System.out.println("开始转化Word为PDF...");long date = new Date().getTime();// 设置Word不可见app.setProperty("Visible", new Variant(false));// 禁用宏app.setProperty("AutomationSecurity", new Variant(3));// 获得Word中所有打开的文档，返回documents对象Dispatch docs = app.getProperty("Documents").toDispatch();// 调用Documents对象中Open方法打开文档，并返回打开的文档对象DocumentDispatch doc = Dispatch.call(docs, "Open", inputFile, false, true).toDispatch();File tofile = new File(pdfFile); if (tofile.exists()) { tofile.delete(); } /**** * 调用Document对象的SaveAs方法，将文档保存为pdf格式* * Dispatch.call(doc, "SaveAs", pdfFile, wdFormatPDF* word保存为pdf格式宏，值为17 )* */Dispatch.call(doc, "ExportAsFixedFormat", pdfFile, wdFormatPDF);// word保存为pdf格式宏，值为17System.out.println(doc);// 关闭文档long date2 = new Date().getTime();int time = (int) ((date2 - date) / 1000);Dispatch.call(doc, "Close", false);// 关闭Word应用程序app.invoke("Quit", 0);return time;} catch (Exception e) {// TODO: handle exceptione.printStackTrace();return -1;}}/**** * Excel转化成PDF* * @param inputFile* @param pdfFile* @return*/private static int Ex2PDF(String inputFile, String pdfFile) {try {ComThread.InitSTA(true);ActiveXComponent ax = new ActiveXComponent("Excel.Application");System.out.println("开始转化Excel为PDF...");long date = new Date().getTime();ax.setProperty("Visible", false);ax.setProperty("AutomationSecurity", new Variant(3)); // 禁用宏Dispatch excels = ax.getProperty("Workbooks").toDispatch();Dispatch excel = Dispatch.invoke(excels, "Open", Dispatch.Method,new Object[] { inputFile, new Variant(false), new Variant(false) }, new int[9]).toDispatch();File tofile = new File(pdfFile); if (tofile.exists()) { tofile.delete(); } // 转换格式Dispatch.invoke(excel, "ExportAsFixedFormat", Dispatch.Method, new Object[] { new Variant(0), // PDF格式=0pdfFile, new Variant(xlTypePDF) // 0=标准 (生成的PDF图片不会变模糊) 1=最小文件// (生成的PDF图片糊的一塌糊涂)}, new int[1]);// 这里放弃使用SaveAs/** Dispatch.invoke(excel,"SaveAs",Dispatch.Method,new Object[]{* outFile, new Variant(57), new Variant(false), new Variant(57),* new Variant(57), new Variant(false), new Variant(true), new* Variant(57), new Variant(true), new Variant(true), new* Variant(true) },new int[1]);*/long date2 = new Date().getTime();int time = (int) ((date2 - date) / 1000);Dispatch.call(excel, "Close", new Variant(false));if (ax != null) {ax.invoke("Quit", new Variant[] {});ax = null;}ComThread.Release();return time;} catch (Exception e) {// TODO: handle exceptione.printStackTrace();return -1;}}/**** ppt转化成PDF* PPT必须是一下的版本，不然会报错。* @param inputFile* @param pdfFile* @return*/private static int ppt2PDF(String inputFile, String pdfFile) {try {ComThread.InitSTA(true);ActiveXComponent app = new ActiveXComponent("PowerPoint.Application");// app.setProperty("Visible", false);System.out.println("开始转化PPT为PDF...");long date = new Date().getTime();Dispatch ppts = app.getProperty("Presentations").toDispatch();Dispatch ppt = Dispatch.call(ppts, "Open", inputFile, true, // ReadOnly// false, // Untitled指定文件是否有标题false// WithWindow指定文件是否可见).toDispatch();File tofile = new File(pdfFile); if (tofile.exists()) { tofile.delete(); } Dispatch.invoke(ppt, "SaveAs", Dispatch.Method, new Object[]{pdfFile,new Variant(ppSaveAsPDF)},new int[1]);System.out.println("PPT");Dispatch.call(ppt, "Close");long date2 = new Date().getTime();int time = (int) ((date2 - date) / 1000);app.invoke("Quit");return time;} catch (Exception e) {// TODO: handle exceptione.printStackTrace();return -1;}}}
