springboot新版本（2.0.0+）自定义ErrorController中使用ErrorAttributes

2.0.0之前使用：

@Autowired
private ErrorAttributes errorAttributes;

private Map<String, Object> getErrorAttributes(HttpServletRequest request,
                                                   boolean includeStackTrace) {
        RequestAttributes requestAttributes = new ServletRequestAttributes(request);
        return this.errorAttributes.getErrorAttributes(requestAttributes,
                includeStackTrace);
    }

后续版本使用：

@Autowired
private ErrorAttributes errorAttributes;

private Map<String, Object> getErrorAttributes(HttpServletRequest request,
                                               boolean includeStackTrace) {
    ServletWebRequest servletWebRequest = new ServletWebRequest(request);
    return this.errorAttributes.getErrorAttributes(servletWebRequest,
            includeStackTrace);
}