从 Spring 集成流程调用 Spring 控制器

Question

嗨，我有一个小问题。我想手动调用 spring 控制器，但我有一个例外。首先，让我向您展示一些集成流程和控制器：

@Bean
public IntegrationFlow flow() {
    return IntegrationFlows.from(
            Amqp.inboundAdapter(rabbitMqConfig.connectionFactory(), queue)
                    .acknowledgeMode(AcknowledgeMode.MANUAL)
                    .errorChannel("errorChannel")
                    .concurrentConsumers(2)
                    .maxConcurrentConsumers(3))
            .transform(Transformers.fromJson(Event.class))
            .transform(new EventToRequestTransformer())
            .handle(Request.class, (request, headers) -> controller.trigger(request))
            .<ResponseEntity, HttpStatus>transform(ResponseEntity::getStatusCode)
            .routeToRecipients(some routing)
            .get();
}


@Controller
public class SomeController {

    @RequestMapping(value = "/trigger", method = RequestMethod.POST)
    public ResponseEntity<Response> trigger(@RequestBody Request request) 
    {
        //some logic
    }
}

当我运行我的应用程序发送一个事件时，我在线上遇到异常：

.handle(Request.class, (request, headers) -> controller.trigger(request))

异常：

nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet

有人可以告诉我哪里出了问题以及如何解决吗？我以为我可以调用控制器方法，就像它来自简单的 POJO 一样。

Answer 1

你是混合关注，尝试从服务层调用Web层。

如果逻辑是那样，那么应用程序的设计是错误的。

您应该从控制器逻辑中提取一些服务并从 Web 以及集成级别调用它。

根据您的堆栈跟踪，您似乎试图访问 request 范围对象。好吧，我想这正是 @Controller bean 所发生的事情。

从 Spring 集成流程调用 Spring 控制器

Invoke Spring Controller from Spring Integration flow

java

spring

spring-mvc

spring-integration

spring-integration-dsl