import org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory; //导入依赖的package包/类
public WebappContext(ServletContext servletContext, OpenOffice openOffice) {
	DiskFileItemFactory fileItemFactory = new DiskFileItemFactory();
	fileUpload = new ServletFileUpload(fileItemFactory);
	if (openOffice.getFileSizeMax() != null) {
		fileUpload.setFileSizeMax(Integer.parseInt(openOffice.getFileSizeMax()));
		logger.info("max file upload size set to " + openOffice.getFileSizeMax());
	} else {
		logger.warn("max file upload size not set");
	}
	
	DefaultOfficeManagerConfiguration configuration = new DefaultOfficeManagerConfiguration();
	if (openOffice.getPort() != null) {
		String ports = openOffice.getPort();
		String[] portArr = ports.split(",");
		int[] portArrInt = new int[portArr.length];
		int i = 0;
		for (String port : portArr){
			portArrInt[i++] = Integer.parseInt(port);
		}
	    configuration.setPortNumbers(portArrInt);
	}
	if (openOffice.getHome() != null) {
	    configuration.setOfficeHome(new File(openOffice.getHome()));
	}
	if (StringUtils.isNotBlank(openOffice.getProfile())) {
	    configuration.setTemplateProfileDir(new File(openOffice.getProfile()));
	}

	officeManager = configuration.buildOfficeManager();
	documentConverter = new OfficeDocumentConverter(officeManager);
}
 

import org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory; //导入依赖的package包/类
@Override
public void init() throws ServletException {
	DiskFileItemFactory fileFactory = new DiskFileItemFactory();
	File filesDir = (File) getServletContext().getAttribute("FILE_DIR_FILE");
	fileFactory.setRepository(filesDir);
	this.uploader = new ServletFileUpload(fileFactory);
}