小编hai*_*one的帖子

下面显示的是一段代码,我尝试引用我的ApplicationProperties bean.当我从构造函数引用它时它是null,但是当从另一个方法引用它时它很好.到目前为止,我在其他类中使用这个自动装配的bean没有任何问题.但这是我第一次尝试在另一个类的构造函数中使用它.

在下面的代码片段中,当从构造函数调用时,applicationProperties为null,但在convert方法中引用时则不是.我错过了什么

@Component
public class DocumentManager implements IDocumentManager {

  private Log logger = LogFactory.getLog(this.getClass());
  private OfficeManager officeManager = null;
  private ConverterService converterService = null;

  @Autowired
  private IApplicationProperties applicationProperties;


  // If I try and use the Autowired applicationProperties bean in the constructor
  // it is null ?

  public DocumentManager() {
  startOOServer();
  }

  private void startOOServer() {
    if (applicationProperties != null) {
      if (applicationProperties.getStartOOServer()) {
        try {
          if (this.officeManager == null) {
            this.officeManager = new DefaultOfficeManagerConfiguration()
              .buildOfficeManager();
            this.officeManager.start();
            this.converterService = new …