fegin在定时任务中调用出错

报错信息如下

"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:In this case, use RequestContextListener or RequestContextFilter to expose the current request."

这个原因：查看源码 

attributes  == null 了

public static RequestAttributes currentRequestAttributes() throws IllegalStateException {
        RequestAttributes attributes = getRequestAttributes();
        if (attributes == null) {
            if (jsfPresent) {
                attributes = FacesRequestAttributesFactory.getFacesRequestAttributes();
            }
            if (attributes == null) {
                throw new 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: " +
                        "In this case, use RequestContextListener or RequestContextFilter to expose the current request.");
            }
        }
        return attributes;
    }

解决：

//RequestInterceptor这个接口是fegin拦截器，在fegin发送请求之前都会走这个拦截器
@Component
public class FeignConfig implements RequestInterceptor {


    @Override
    public void apply(RequestTemplate requestTemplate) {
        //你需要设置自己的请求时候的一些参数，下面是我项目中用到的，
        requestTemplate.header(SecurityConstants.FROM, SecurityConstants.FROM_IN);
    }
}