我有一个简单的服务，我想通过springaop做日志记录。我在运行它的时候得到了bean，我已经在控制器中定义了restemplate的bean，如果这里遗漏了什么，请给出建议。
堆栈跟踪：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'demo1Controller': Unsatisfied dependency expressed through field 'restTemplate'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'restTemplate' defined in class path resource [com/test/demo1/controller/Demo1Controller.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.client.RestTemplate]: Circular reference involving containing bean 'demo1Controller' - consider declaring the factory method as static for independence from its containing instance. Factory method 'restTemplate' threw exception; nested exception is java.lang.NullPointerException

我的方面类demohttpspect.java

@Aspect
@Component
@Order(1)
public class DemoHttpAspect {

    private final static Logger logger = LoggerFactory.getLogger(DemoHttpAspect.class);

    @After("execution(public * com.test.demo1.controller.*.*(..))")
    public void logAfter() throws Throwable {
        System.out.println(SplunkLogImpl.of("Performance Logging via AspectJ, Into DemoAspect"));
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();

        HttpAspectCore.controllerEvents(request);
        System.out.println(SplunkLogImpl.of("Performance Logging via AspectJ, Out of CoreAspect"));
    }

}

我的控制器类

package com.test.demo1.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpHeaders;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
public class Demo1Controller {

    @Autowired
    RestTemplate restTemplate;

    @Bean
    public RestTemplate restTemplate()
    {
        return new RestTemplate();
    }

    @RequestMapping("/demo1/name")
    public String getMicroserviceName()
    {
          String micro2Response = restTemplate.postForObject("http://localhost:8084/service/sleuth", null, String.class);
          System.out.println("getMicroserviceName");
        return "Demo" + " : " + micro2Response ;
    }

    @GetMapping("/demo1/sleuth")
    public String helloSleuth(@RequestHeader HttpHeaders headers) {
        System.out.println("helloSleuth");
        System.out.println("headers.getClass()"+headers.getClass());
        return "success demo1";
    }
}