在我的应用程序中，我尝试根据服务方法返回的http状态值进行路由，其余的http状态将被路由到默认错误通道。但是这个默认Map不起作用，

@Bean
public IntegrationFlow bridgeFlow() {
    return IntegrationFlows.from(ApplicationConfiguration.QUEUE_CHANNEL)
            .bridge(e -> e.poller(Pollers.fixedDelay(2500).maxMessagesPerPoll(MAX_MSG_PER_POLL)))
            .handle(someService, "someMethod")
            .route(router())                
            .get();
}

public ExpressionEvaluatingRouter router() {
    ExpressionEvaluatingRouter router = new ExpressionEvaluatingRouter("headers['httpStatus']");
    router.setChannelMapping("422", REJECTED_QUEUE_CHANNEL);
    router.setChannelMapping("202", "nullChannel");
    router.setChannelMapping("201", "nullChannel");
    router.setDefaultOutputChannelName(ORR_FAILED_QUEUE_CHANNEL);// When I receive other status codes it should go into this channel. But it's not going and throwing a runtime exception when a status code other than these is received.
    return router;
}

我尝试将默认通道放在.route（router（））.channel（orr\u failed\u queue\u channel）和.route（router（））.handle（orr\u failed\u queue\u channel）之后。但是它在bean初始化过程中失败了，说“currentcomponent”（org.springframework.integration.router）。expressionevaluatingrouter@1ca574db)是单向“messagehandler”，不适合配置“outputchannel”。这是集成流的结束。