@Overridepublic void onStartup(ServletContext servletContext) throws ServletException {//注解配置web.xml上下文AnnotationConfigWebApplicationContext rootAppContext = new AnnotationConfigWebApplicationContext();//注册配置类/** 相当于加载beans.xml*  <context-param>*     <param-name>contextConfigLocation</param-name>*     <param-value>classpath:spring/applicationContext.xml</param-value>*  </context-param>*/rootAppContext.register(AppConfiguration.class); //设置ServletContext/** servlet上下文，相当于web.xml*/rootAppContext.setServletContext(servletContext);//添加监听器/** 相当于添加一个上下文监听* <listener>*      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>* </listener>*/ContextLoaderListener contextLoaderListener = new ContextLoaderListener(rootAppContext);/** 将配置的一个监听的机制存放到web.xml中*/servletContext.addListener(contextLoaderListener);}

@Component
public class ConverterProperties {@Value("${converter.office.home}")private String officeHome;@Value("${converter.office.ports}")private String officePorts;public String getOfficeHome() {return officeHome;}public String getOfficePorts() {return officePorts;}}

public interface DocConverter {/*** 文本转换* @param from 初始文件路径* @param to 传出文件路径*/void converter(String from,String to);/*** 文本转换* @param from * @param to*/void converter(File from,File to);}

/*** office文档转换实现类* @author kif**/
@Component
public class DocConverterImpl implements DocConverter{@Autowiredprivate ConverterProperties converterProperties;//文件管理private OfficeManager officeManager;//文件转换private OfficeDocumentConverter offDocConverter;/*** @PostConstruct 声明该方法在构造函数执行完之后被调用，且仅调用一次* 相当于<init-method></init-method>*/@PostConstructpublic void start(){//配置DefaultOfficeManagerConfiguration cfg = new DefaultOfficeManagerConfiguration();//指定OpenOffice或LibreOffice安装的根目录cfg.setOfficeHome(converterProperties.getOfficeHome());//LibreOffice处理进程的端口，多个用逗号隔开（如果设置了多个端口，将会启动多个处理进程）String portsNumbers = converterProperties.getOfficePorts();if(portsNumbers != null && !"".equals(portsNumbers.trim())){String[] ports = portsNumbers.split(",");int[] portList = new int[ports.length];for(int i=0;i<ports.length;i++){portList[i] = Integer.valueOf(ports[i]);}cfg.setPortNumbers(portList);}//officeManagerofficeManager = cfg.buildOfficeManager();//OfficeDocumentConverter文档转换器offDocConverter = new OfficeDocumentConverter(officeManager);System.out.println("Converter initialized ...");//启动文档转换器进程officeManager.start();System.out.println("converter start ...");}/*** 进行转换*/public void converter(String from, String to) {this.converter(new File(from), new File(to));}@Overridepublic void converter(File from, File to) {offDocConverter.convert(from, to);}/*** 终止处理进程* @PreDestroy 声明该方法在Bean销毁前被调用，仅调用一次*/@PreDestroypublic void stop(){officeManager.stop();System.out.println("converter stop ...");}}