获取用户真实 IP 方法

                                  一、获取用户ip

                                  接入 CDN 后,为了方便获取客户端真实 IP,VeryCloud 贴心设计,在请求的?#20998;?#28155;加 Cdn-Real-Ip 字段。

                                  例:Cdn-Real-Ip: 58.214.233.214

                                  需要注意的是这些代码是在您切换 CDN 后生效,如未使用 CDN 服务,这些代码是无法获得用户 IP 的。

                                  下面是读取 Cdn-Real-ip 代码片段:

                                         php:

                                                    <?php                                                                   

                                                    $user_IP = ($_SERVER["HTTP_CDN_REAL_IP"]);                              

                                                    echo $user_IP;                                                          

                                                    ?>                                                                      

                                         Java:

                                                    String srcIp = request.getHeader("Cdn-Real-Ip");                        

                                                         if(srcIp == null){                                                 

                                                           srcIp = request.getRemoteAddr();                                 

                                                         }                                                                  

                                         [注]request 是 HttpServletRequest 类型的?#38382;?无论是直接写 serverlet 还是用 struts 都会传入该?#38382;?

                                         Asp(用 C#):

                                                    String srcIp = Request.Headers["Cdn-Real-Ip"];                          

                                                    if(srcIp == null){                                                      

                                                                   srcIp = Request.UserHostAddress;                         

                                                             }                                                              

                                         ASP:

                                                    <% Request.ServerVariables("HTTP_Cdn-Real-Ip") %>                       

                                   


                                  双色球网上投注