Question

如何通过subject.associateWith（work）将Spring延迟结果产生的线程与Apache Shiro Subject相关联;

对于可调用或可运行的内容很明显，但对于异步Spring对象则不然。

   @RequestMapping(value = "etc/async/{atbId}", method = RequestMethod.GET, produces = { MediaType.APPLICATION_JSON_VALUE })
    @ResponseBody
    public DeferredResult<ResponseEntity<String>> getEtcById(HttpServletResponse response,
                               @PathVariable("atbId") long atbId,                               
                               HttpSession session) throws IOException {

        log.debug("Enter async getEtcById with ListenableFuture");
        final String userName = (String) session.getAttribute(SessionKeys.USER_ID);
        final AuthenticatedAsyncRestTemplate restTemplate = new AuthenticatedAsyncRestTemplate();

        final DeferredResult<ResponseEntity<String>> result = new DeferredResult<>(100000); 
        ListenableFuture<ResponseEntity<String>> future = 
                restTemplate.getForEntity("http://localhost:8079/ts.download/download/etc/{atbId}?userName={userName}", String.class, atbId, userName);  

        future.addCallback(  
                  new ListenableFutureCallback<ResponseEntity<String>>() {  
                    @Override  
                    public void onSuccess(ResponseEntity<String> response) {  
                        // Will be called in HttpClient thread  
                        log.debug("ListenableFuture onSuccess: " + response.getBody());                         
                        result.setResult(response);  
                    }  

                    @Override  
                    public void onFailure(Throwable t) {  
                        log.error("ListenableFuture onFailure", t);  
                        result.setErrorResult(t.getMessage());  
                    }  
                });  

        log.debug("Leaving async getEtcById");
        return result;
    }

其余的调用有效，但我收到此错误消息：

用于servlet [spring]的Servlet.service（）与path的上下文 [/ mycontext]抛出异常[java.lang.RuntimeException： org.apache.shiro.UnavailableSecurityManagerException：没有 SecurityManager可以访问调用代码，或者绑定到 org.apache.shiro.util.ThreadContext或作为vm静态单例。这个是一个无效的应用程序配置。]有根本原因 org.apache.shiro.UnavailableSecurityManagerException：没有 SecurityManager可以访问调用代码，或者绑定到 org.apache.shiro.util.ThreadContext或作为vm静态单例。这个是无效的应用程序配置。在 org.apache.shiro.SecurityUtils.getSecurityManager（SecurityUtils.java:123）在org.apache.shiro.subject.Subject $ Builder。（Subject.java:627）在org.apache.shiro.SecurityUtils.getSubject（SecurityUtils.java:56）在 org.apache.shiro.web.servlet.ShiroHttpServletRequest.getSubject（ShiroHttpServletRequest.java:88）在 org.apache.shiro.web.servlet.ShiroHttpServletRequest.getSubjectPrincipal（ShiroHttpServletRequest.java:93）在 org.apache.shiro.web.servlet.ShiroHttpServletRequest.getUserPrincipal（ShiroHttpServletRequest.java:111）在 org.springframework.web.servlet.FrameworkServlet.getUsernameForRequest（FrameworkServlet.java:1079）在 org.springframework.web.servlet.FrameworkServlet.publishRequestHandledEvent（FrameworkServlet.java:1065）在 org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:996）在 org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet.java:852）在javax.servlet.http.HttpServlet.service（HttpServlet.java:621）at org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:837）在javax.servlet.http.HttpServlet.service（HttpServlet.java:728）at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:305）在 org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:210）在 org.apache.catalina.core.ApplicationDispatcher.invoke（ApplicationDispatcher.java:749）在 org.apache.catalina.core.ApplicationDispatcher.doDispatch（ApplicationDispatcher.java:660）在 org.apache.catalina.core.ApplicationDispatcher.dispatch（ApplicationDispatcher.java:626）在 org.apache.catalina.core.AsyncContextImpl $ 1.run（AsyncContextImpl.java:225）在 org.apache.catalina.core.AsyncContextImpl.doInternalDispatch（AsyncContextImpl.java:368）在 org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:217）在 org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:123）在 org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:171）在 org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:100）在 org.apache.catalina.valves.AccessLogValve.invoke（AccessLogValve.java:953）在 org.apache.catalina.core.StandardEngineValve.invoke（StandardEngineValve.java:118）在 org.apache.catalina.connector.CoyoteAdapter.asyncDispatch（CoyoteAdapter.java:300）在 org.apache.coyote.http11.AbstractHttp11Processor.asyncDispatch（AbstractHttp11Processor.java:1636）在 org.apache.coyote.AbstractProtocol $ AbstractConnectionHandler.process（AbstractProtocol.java:599）在 org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun（NioEndpoint.java:1721）在 org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.run（NioEndpoint.java:1679）在 java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1145）在 java.util.concurrent.ThreadPoolExecutor中的$ Worker.run（ThreadPoolExecutor.java:615）在java.lang.Thread.run（Thread.java:724）

将DeferredResult和Spring AsyncRestTemplate的线程关联到Shiro

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