Question

我正在使用Spring Boot 1.2.5 RELEASE开发应用程序并遇到难以复制的问题，并且似乎与我的会话有关。进行大量研究表明，当使用@SessionAttribute注释时，我的会话将在我的网页访问另一个控制器时结束。虽然我也发现了一些信息，表明最近的Spring Boot不再适用。此外，另一个控制器不使用与此控制器相同的模板或会话标识符。

或者我认为我的会话可能即将到期，但我似乎无法找到任何有关默认超时的信息。

该应用程序非常简单，只是一个用于编辑表单数据的网页。有时，当点击保存按钮时，会抛出异常，说明＆＃34; adminForm＆＃34;不是有效的模型数据。对不起，我无法复制该例外并且没有保存它。

代码如下，提前感谢您的意见。

@SessionAttributes("adminForm")
@Controller
public class Admin_FormController 
{
    final static protected long INDEX_RA = 1L;

    @Autowired
    private AdminDataRepository rep;

    @RequestMapping(value="/admin", method=RequestMethod.GET)
    public String adminForm(Model model) 
    {
        AdminData ad = rep.findById(INDEX_RA);

        // If there is no configuration record, create one and assign the primary key
        if(ad == null)
        {
            ad = new AdminData();
            ad.setId(INDEX_RA);
        }

        model.addAttribute("adminForm", ad);
        return "adminForm";
    }

    @RequestMapping(value="/admin", method=RequestMethod.POST)
    public @ResponseBody AdminData adminSubmit(@ModelAttribute("adminForm") AdminData ad, Model model) 
    {
        rep.save(ad);
        model.addAttribute("adminForm", ad);
        return ad;
    }

}

更新：

以下是抛出的异常：

2015-07-28 11:12:16.564 ERROR 52963 --- [nio-8080-exec-3] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Expected session attribute 'adminForm'] with root cause

org.springframework.web.HttpSessionRequiredException: Expected session attribute 'adminForm'
        at org.springframework.web.method.annotation.ModelFactory.initModel(ModelFactory.java:115)
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:753)
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)
        at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967)
        at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:869)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
        at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1521)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1478)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:745)

Answer 1

我能够通过指定会话永远不会超时来解决此问题。这在我们的情况下很好，因为这个应用程序在应用程序上的单个标志后面被保护。这是我添加到application.properties文件中的内容：

server.session超时= -1

Spring启动和@SessionAttributes

1 个答案: