java Jacob 打印文件

private void doPrintDoc(List<File> fileList) {

		if (null == fileList || fileList.isEmpty()) {
			return;
		}

		// 初始化组件
		ComThread.InitSTA();

		L.info("___________________ start Print 1");

		for (File file : fileList) {

			if (file == null || !file.exists()) {
				return;
			}

			L.info("___________________ start Print 2 :" + file.getAbsolutePath());

			int index = file.getName().indexOf(".");
			String extName = file.getName().toUpperCase().substring(index + 1);

			String comApp = "Word.Application";
			String property = "Documents";

			if (extName.equals("DOC") || extName.equals("DOCX") || extName.equals("WPS")) {
				comApp = "Word.Application";
				property = "Documents";
			} else if (extName.equals("XLS") || extName.equals("XLSX") || extName.equals("ET")) {
				comApp = "Excel.Application";
				property = "Workbooks";
			} else if (extName.equals("PPT") || extName.equals("PPTX") || extName.equals("DPS")) {
				comApp = "PowerPoint.Application";
				property = "Presentations";
			}

			L.info("___________________ start Print 3 :" + comApp);
			ActiveXComponent axc = new ActiveXComponent(comApp);
			try {
				if (!property.equals("Presentations")) {
					Dispatch.put(axc, "Visible", new Variant(false));
				}
				Dispatch document = axc.getProperty(property).toDispatch();

				Dispatch doc = null;

				if (property.equals("Presentations")) {
					doc = Dispatch.call(document, "Open", file.getAbsolutePath(), true, true, false).toDispatch();
				} else {
					doc = Dispatch.invoke(document, "Open", Dispatch.Method, new Object[] { file.getAbsolutePath() }, new int[1]).toDispatch();
				}

				L.info("___________________ start Print 3 :" + file.getAbsolutePath());

				Dispatch.call(doc, "PrintOut");
				Dispatch.call(doc, "Close");
				if (!property.equals("Presentations")) {
					axc.invoke("Quit", new Variant[] {});
				}

			} catch (Exception e) {
				e.printStackTrace();
			} finally {
				comApp = "";
				property = "";

			}
		}

		ComThread.Release();
	}