如何修改HttpServletRequest的Headers?

@GetMappingpublicvoidtestServletRequest(HttpServletRequestrequest, HttpServletResponseresponse) throwsIOException, NoSuchFieldException, InstantiationException, IllegalAccessException, ServletException {
RequestFacaderequestFacade= (RequestFacade) request;
// 反射获取request属性Fieldrequest1=requestFacade.getClass().getDeclaredField("request");
// 设置私有属性权限request1.setAccessible(true);
Objecto=request1.get(request);
// 获取coyoteRequestFieldcoyoteRequest=o.getClass().getDeclaredField("coyoteRequest");
coyoteRequest.setAccessible(true);
Objecto1=coyoteRequest.get(o);
Fieldheaders=o1.getClass().getDeclaredField("headers");
headers.setAccessible(true);
// 获取HeaderMimeHeaderso2= (MimeHeaders)headers.get(o1);
o2.addValue("Auth").setString("123");
request.getRequestDispatcher("/servletRequest/test").forward(request,response);
        }