java利用jacob将word转pdf

package com.casf.hn.core.util;import java.io.File;import com.jacob.activeX.ActiveXComponent;import com.jacob.com.ComThread;import com.jacob.com.Dispatch;import com.jacob.com.Variant;/** * 效果最好的一种方法，但是需要 window 环境，而且速度是最慢的需要安装 msofficeWord 以及 SaveAsPDFandXPS.exe ( * word 的一个插件，用来把 word 转化为 pdf，可以不用安装，本次未安装测试通过 ) *  *  * */public class WordToPdf { private static final int wdFormatPDF = 17; // PDF 格式 public void wordToPDF(String sfileName, String toFileName) {  System.out.println("启动 Word...");  long start = System.currentTimeMillis();  ActiveXComponent app = null;  Dispatch doc = null;  try {   app = new ActiveXComponent("Word.Application");   app.setProperty("Visible", new Variant(false));   Dispatch docs = app.getProperty("Documents").toDispatch();   doc = Dispatch.call(docs, "Open", sfileName).toDispatch();   System.out.println("打开文档..." + sfileName);   System.out.println("转换文档到 PDF..." + toFileName);   File tofile = new File(toFileName);   if (tofile.exists()) {    tofile.delete();   }   Dispatch.call(doc, "SaveAs", toFileName, // FileName     wdFormatPDF);   long end = System.currentTimeMillis();   System.out.println("转换完成..用时：" + (end - start) + "ms.");  } catch (Exception e) {   System.out.println("========Error:文档转换失败：" + e.getMessage());  } finally {   Dispatch.call(doc, "Close", false);   System.out.println("关闭文档");   if (app != null)    app.invoke("Quit", new Variant[] {});  }  // 如果没有这句话,winword.exe进程将不会关闭  ComThread.Release(); } public static void main(String[] args) {  WordToPdf d = new WordToPdf();  d.wordToPDF("D://cssj//xxxx.doc", "D://cssj//xxxx.pdf"); }}