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\");
 }

}