Spring需要重新启动服务器才能刷新域对象(Spring needs a server restart to refresh domain objects)

 球员： 
 
 我整个上午一直在打架，以便找到我的弹簧控制器的问题，这些问题在进入数据库并根据此类ddbb中的数据刷新表时无法正常工作。 
 
 我有一个单独的项目用于我的所有业务逻辑，我将其导出为JAR，并将其包含在我的Web spring MVC应用程序的lib文件夹（和类路径）中。 我有一个控制器用于这样的UploadCalendar.jsp，我从中实例化一个域服务（外部jar），理论上它进入数据库，在天和转（繁忙和可用）上抓取所有信息，然后绘制一个日历（表）上传到wordpress网站。 jsp只在整个外部服务类中运行进程的业务逻辑。 
 
 因为如果我从Web App外部运行uploadCalendar方法，它运行得很好，我很困惑为什么在Spring控制器中运行完全相同的方法，它不会更新日历。 
 
 我不得不说，通过我的服务类，我进入数据库，并将执行getCalendar（）String方法所需的所有数据加载到内存中。 然后，我创建一个文件，并将该文件上传到远程服务器。 
 
 我不知道Spring是否会避免重新加载数据，即使数据被更改为ddbb？ 
 
 我的Controller代码是这样的： 
 
@Autowired
FileService fileService;

@Autowired
MainService main;

@RequestMapping(path="/uploadCalendar", method=RequestMethod.GET)
public ModelAndView UploadCalendar() throws IOException, DDBBException{
    //This, in theory, should get into the ddbb, and load all needed data
    main.loadAllTurns();

    //Runs getCalendar, takes the calendar string, and writes a local file
    fileService.WriteFile(main.getCalendarTableString(), conf.getCalendarFile2UploadURI());

    //Upload the file
    fileService.UploadFileFTP(conf.getCalendarFile2UploadURI(), conf.getCalendarRemoteFileURI());

    return new ModelAndView("/web/UploadCalendar.jsp");
}
 
 我一直在进行大量的调试，只是为了发现它不是代码错误，但无论如何只是Web应用程序的一些缓存问题，因为如果我重新启动服务器，那么日历正确更新，文件正确更新，一切正常。 但是如果我再次进入数据库并更改一行，我还需要重新启动服务器以更新日历字符串。 
 
 你对这个问题有什么关系吗？ 

guys:
 
I've been fighting all morning in order to find what's the problem with my spring controller, which were not working properly while getting into the database and refreshing a table depending on the data within such ddbb.
 
I have a separate project for all of my business logic, which I export as a JAR, and include it into the lib folder (and classpath) of my web spring MVC app. And I have a controller for such an UploadCalendar.jsp, from which I instantiate a domain service (external jar) which in theory gets into the database, grabs all of the information on days and turns (busy and available), and then paints a calendar (table) to upload to a wordpress site. The jsp only runs the business logic of the process, throughout the external service class.
 
Since If I run the uploadCalendar method from outside the Web App, it runs perfectly, I get a lot confused why running the exact same method from within the Spring controller, it doesn't update the calendar.
 
I have to say that with my service class, I get into the database, and loads into memory all data needed to perform the getCalendar() String method. Then, I create a file, and upload that file to the remote server.
 
I don't know if it's Spring that is avoiding to reload the data, even when the data is changed into the ddbb?
 
My Controller code is like this:
 
@Autowired
FileService fileService;

@Autowired
MainService main;

@RequestMapping(path="/uploadCalendar", method=RequestMethod.GET)
public ModelAndView UploadCalendar() throws IOException, DDBBException{
    //This, in theory, should get into the ddbb, and load all needed data
    main.loadAllTurns();

    //Runs getCalendar, takes the calendar string, and writes a local file
    fileService.WriteFile(main.getCalendarTableString(), conf.getCalendarFile2UploadURI());

    //Upload the file
    fileService.UploadFileFTP(conf.getCalendarFile2UploadURI(), conf.getCalendarRemoteFileURI());

    return new ModelAndView("/web/UploadCalendar.jsp");
}
 
I have been making a lot of debug, just to find that it wasn't a code error, but just anyhow of some cache-problem with the web app, because if I restart the server, then the calendar is correctly updated, the file is correctly updated, and everything is ok. But if I just get into the database once again, and change a row, I also need a new restart of the server for the calendar string to be updated.
 
Do you have any idea on what the problem could be related to?

原文：https://stackoverflow.com/questions/34905020