jsp获取服务端的访问信息

• 获取服务端访问信息

    public static String getUrl(HttpServletRequest request){

        String url = "";

        if(request != null){

            String scheme       = request.getScheme();

            String host         = request.getLocalAddr();

            int post        = request.getLocalPort();

            String contextPath  = request.getContextPath();

            url = scheme + "://" + host + ":" + String.valueOf(post) + "/" + contextPath + "/";

        }

        return url;

    }