HttpServletRequest httpServletRequest = getHttpServletRequest();获取请求对象信息

获取所有Header信息，获取头部信息

    public String getHeader(HttpServletRequest request){
        HashMap map = new HashMap<>();
        Enumeration headerNames = request.getHeaderNames();
        while (headerNames.hasMoreElements()){
            String s = headerNames.nextElement();
            map.put(s,request.getHeader(s));
        }
        return JSON.toJSONString(map);
    }

获取完整的请求url

httpServletRequest.getRequestURL().toString()