java - 如何在Servlet请求中获取客户端系统IP地址

Question

这个问题已经有答案了:

Get real client IP in a Servlet [duplicate] (3 个回答)

How do I get the remote address of a client in servlet? (11 个回答)

已关闭 6 年前。

    @GET
        @Produces(MediaType.APPLICATION_JSON)
        public Response login(@Context HttpHeaders headers, @Context HttpServletRequest request) {
            System.out.println(getClientIpAddress(request));
            String ipAddress = request.getHeader("X-FORWARDED-FOR");
            if (ipAddress == null) {
                ipAddress = request.getRemoteAddr();
            }
            System.out.println("ip:" + ipAddress);
            return new LoginUtils().performLogin(headers.getRequestHeaders());
        }  

  public static String getClientIpAddress(HttpServletRequest request) {
            for (String header : HEADERS_TO_TRY) {
                String ip = request.getHeader(header);
                if (ip != null && ip.length() != 0 && !"unknown".equalsIgnoreCase(ip)) {
                    return ip;
                }
            }
            return request.getRemoteAddr();
        }

但是我没有获取IP地址，我从每个请求中得到相同的127.0.0.1这个值，不同的系统可以告诉我如何获取Ip地址。

Answer 1

你可以这样做:

使 HttpServletRequest Autowired 可以在 Controller 的任何功能中使用:

@Autowired
private HttpServletRequest request;

然后在你的 Controller 中使用它，如下所示:

 String remoteAddr = request.getRemoteAddr();
 String localAddres = request.getLocalAddr();