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This article mainly introduces "how to get the current server or user ip and port". In the daily operation, I believe that many people have doubts about how to obtain the current server or user ip and port. Xiaobian consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "how to get the current server or user ip and port". Next, please follow the editor to study!

Get the current server address by request (request). I'm sure you know all about it.

Request.getHeader ("User-Agent"); / / get the client's system version request.getRemoteAddr (); / / get the client's IP request.getRemoteHost () / / get the client's hostname request.getRemotePort (); / / get the client's port request.getRemoteUser (); / / get the client's user request.getLocalAddr () / / get the server IP request.getLocalPort (); / / get the server port

However, the server address can be obtained without request and tested by either of the following two methods

/ / method 1 String SERVER_IP = ""; try {Enumeration netInterfaces = NetworkInterface.getNetworkInterfaces (); InetAddress ip = null; while (netInterfaces.hasMoreElements ()) {NetworkInterface ni = (NetworkInterface) netInterfaces .nextElement (); ni.getInterfaceAddresses (); ip = (InetAddress) ni.getInetAddresses (). NextElement () SERVER_IP = ip.getHostAddress (); if (! ip.isSiteLocalAddress () & &! ip.isLoopbackAddress () & & ip.getHostAddress (). IndexOf (":") = =-1) {SERVER_IP = ip.getHostAddress (); break } else {ip = null;} catch (Exception e) {e.printStackTrace ();} / / method 2 InetAddress addr = null; try {addr = InetAddress.getLocalHost ();} catch (Exception e) {e.printStackTrace () } byte [] ipAddr = addr.getAddress (); String ipAddrStr = ""; for (int I = 0; I

0) {ipAddrStr + = ".";} ipAddrStr + = ipAddr [I] & 0xFF;} System.out.println (ipAddrStr)

If multiple applications (multi-ports) are deployed under the same server, how to determine the port has not been found.

For example: if there are multiple service

Personal use method to obtain the project root directory address to determine the service deployment address

/ / get the root directory path String rootPath=getClass () .getResource ("/") .getFile () .toString ()

If you use a reverse proxy to get the user ip

Public static String getRemoteIpAddress () {HttpServletRequest request = getHttpServletRequest (); String ip = request.getHeader ("x-forwarded-for"); if (ip = = null | | ip.length () = = 0 | | "unknown" .equalsIgnoreCase (ip)) {ip = request.getHeader ("Proxy-Client-IP") } if (ip = = null | | ip.length () = = 0 | | "unknown" .equalsIgnoreCase (ip)) {ip = request.getHeader ("WL-Proxy-Client-IP");} if (ip = = null | | ip.length () = = 0 | "unknown" .equalsIgnoreCase (ip)) {ip = request.getRemoteAddr () } if (ip = = null | | ip.length () = = 0 | | "unknown" .equalsIgnoreCase (ip)) {ip = request.getHeader ("http_client_ip");} if (ip = = null | | ip.length () = = 0 | | "unknown" .equalsIgnoreCase (ip)) {ip = request.getHeader ("HTTP_X_FORWARDED_FOR") } if (ip! = null & & ip.indexOf (",")! =-1) {ip= ip.substring (ip.lastIndexOf (",") + 1, ip.length ()). Trim ();} if ("0 ip=" 127.0.0.1 ";} return ip At this point, the study on "how to get the current server or user ip and port" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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