如何在Unity 2018.2+为安卓设备开发的程序中获取C#的IP地址？
似乎Network.player.ipAddress 现在已被弃用，所以我正在寻找一种新方法。
【问题讨论】：
标签： c# unity3d ip ip-address
Network.player.ipAddress 已被弃用，因为它基于旧的过时 Unity 网络系统。
如果你使用Unity新的uNet网络系统，可以使用NetworkManager.networkAddress；
string IP = NetworkManager.singleton.networkAddress;
如果您使用原始网络协议和 API，如 TCP/UDP，则必须使用 NetworkInterface API 来查找 IP 地址。我使用IPManager，它在桌面和移动设备上都适用于我：
IPv4：
string ipv4 = IPManager.GetIP(ADDRESSFAM.IPv4);
IPv6：
string ipv6 = IPManager.GetIP(ADDRESSFAM.IPv6);
IPManager 类：
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
public class IPManager
{
public static string GetIP(ADDRESSFAM Addfam)
{
//Return null if ADDRESSFAM is Ipv6 but Os does not support it
if (Addfam == ADDRESSFAM.IPv6 && !Socket.OSSupportsIPv6)
{
return null;
}
string output = "";
foreach (NetworkInterface item in NetworkInterface.GetAllNetworkInterfaces())
{
#if UNITY_EDITOR_WIN || UNITY_STANDALONE_WIN
NetworkInterfaceType _type1 = NetworkInterfaceType.Wireless80211;
NetworkInterfaceType _type2 = NetworkInterfaceType.Ethernet;
if ((item.NetworkInterfaceType == _type1 || item.NetworkInterfaceType == _type2) && item.OperationalStatus == OperationalStatus.Up)
#endif
{
foreach (UnicastIPAddressInformation ip in item.GetIPProperties().UnicastAddresses)
{
//IPv4
if (Addfam == ADDRESSFAM.IPv4)
{
if (ip.Address.AddressFamily == AddressFamily.InterNetwork)
{
output = ip.Address.ToString();
}
}
//IPv6
else if (Addfam == ADDRESSFAM.IPv6)
{
if (ip.Address.AddressFamily == AddressFamily.InterNetworkV6)
{
output = ip.Address.ToString();
}
}
}
}
}
return output;
}
}
public enum ADDRESSFAM
{
IPv4, IPv6
}
【讨论】：
NetworkManager 附加到游戏对象。如果您尚未将 NetworkManager 附加到 GameObject，那么您没有使用 uNet，应该在我的回答中使用第二种方法。
using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
public class TestLocationService : MonoBehaviour
{
public Text hintText;
private void Start()
{
GetLocalIPAddress();
}
public string GetLocalIPAddress()
{
var host = Dns.GetHostEntry(Dns.GetHostName());
foreach (var ip in host.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
hintText.text = ip.ToString();
return ip.ToString();
}
}
throw new System.Exception("No network adapters with an IPv4 address in the system!");
}
}
【讨论】：
在任何到达服务器的[Command] 内，
发送[Command]的客户端IP是
connectionToClient.address
呼。
您实际上将拥有自己的NetworkBehaviour 派生类，您必须这样做。 （通常称为“通讯”）：
public partial class Comms : NetworkBehaviour {
该类必须覆盖服务器/客户端启动，以便每个 Comms “知道它是什么”。
public override void OnStartServer() {
.. this "Comms" does know it IS the server ..
}
public override void OnStartLocalPlayer() {
.. this "Comms" does know it IS one of the clients ..
}
在任何实际项目中，由于 Unity 不这样做，因此客户端必须向服务器表明自己的身份。您必须从头开始在 Unity 网络中完全处理这些问题。
（请注意，该过程在此处的长博客中进行了说明
所以这是你（必须）在OnStartLocalPlayer做的第一件事
public override void OnStartLocalPlayer() {
Grid.commsLocalPlayer = this;
StandardCodeYouMustHave_IdentifySelfToServer();
// hundreds of other things to do..
// hundreds of other things to do..
}
通讯中的“命令对”如下所示：
您必须在所有网络项目中执行此操作（否则您将不知道哪个客户端是哪个客户端）：
public void StandardCodeYouMustHave_IdentifySelfToServer() {
string identityString = "quarterback" "linebacker" "johnny smith"
.. or whatever this device is ..
CmdIdentifySelfToServer( identityString );
// hundreds more lines of your code
// hundreds more lines of your code
}
[Command]
void CmdIdentifySelfToServer(string connectingClientIdString) {
.. you now know this connection is a "connectingClientIdString"
.. and Unity gives you the connection: in the property: connectionToClient
.. you must record this in a hash, database, or whatever you like
MakeANote( connectingClientIdString , connectionToClient )
// hundreds more lines of your code
// hundreds more lines of your code
}
好消息是Unity添加了connectionToClient属性，也就是说在服务器上，在[Command]里面。
然后，您确实可以在其上使用新的.address 属性。
public void StandardCodeYouMustHave_IdentifySelfToServer() {
CmdIdentifySelfToServer( identityString );
}
[Command]
void CmdIdentifySelfToServer(string connectingClientIdString) {
MakeANote( connectingClientIdString , connectionToClient )
string THEDAMNEDIP = connectionToClient.address;
}
就是那个“简单”，刚刚连接的客户端的ip就是“THEDAMNEDIP”。
呼。
只用了 Unity 5？年。
【讨论】：
2018 年……
您现在似乎可以调用 - 在服务器上，在 NetworkManager 中 - 只需 NetworkConnection#address，它就会给您。
回想一下，您必须编写自己的 NetworkManager，它不能开箱即用。如果您不熟悉统一网络，请在此处解释：
public class OurNetworkManager : NetworkManager {
//
// server .............
//
public override void OnServerConnect(NetworkConnection nc) {
// it means "here on the server" one of the clients has connected
base.OnServerConnect(nc);
Log("a client connected " + nc.connectionId + " " + nc.hostId);
Log("address? " + nc.address);
}
public override void OnServerDisconnect(NetworkConnection nc) { .. etc
。
1) 这只会在服务器上提供给您，
2) 并且仅在“NetworkManager”中（当然！）实际上并不是在您识别每个连接的客户端时
注意更新的答案 - Unity 终于解决了这个问题。
【讨论】：
这是对excellent answer already provided by @Programmer 的小修改。这里的动机是改进 MacOS 和 iOS 上的功能。我还没看过安卓。我也只测试过 IPV4。
与@Programmer 的原作有何不同：
en0、en1）。如果您想要的只是 IP 地址本身，则显然不应使用此选项。public static class IPManager
{
public enum ADDRESSFAM
{
IPv4, IPv6
}
public static string GetIP(ADDRESSFAM Addfam)
{
string ret = "";
List<string> IPs = GetAllIPs(Addfam, false);
if (IPs.Count > 0) {
ret = IPs[IPs.Count - 1];
}
return ret;
}
public static List<string> GetAllIPs(ADDRESSFAM Addfam, bool includeDetails)
{
//Return null if ADDRESSFAM is Ipv6 but Os does not support it
if (Addfam == ADDRESSFAM.IPv6 && !Socket.OSSupportsIPv6)
{
return null;
}
List<string> output = new List<string>();
foreach (NetworkInterface item in NetworkInterface.GetAllNetworkInterfaces())
{
#if UNITY_EDITOR_WIN || UNITY_STANDALONE_WIN || UNITY_EDITOR_OSX || UNITY_STANDALONE_OSX || UNITY_IOS
NetworkInterfaceType _type1 = NetworkInterfaceType.Wireless80211;
NetworkInterfaceType _type2 = NetworkInterfaceType.Ethernet;
bool isCandidate = (item.NetworkInterfaceType == _type1 || item.NetworkInterfaceType == _type2);
#if UNITY_EDITOR_WIN || UNITY_STANDALONE_WIN
// as of MacOS (10.13) and iOS (12.1), OperationalStatus seems to be always "Unknown".
isCandidate = isCandidate && item.OperationalStatus == OperationalStatus.Up;
#endif
if (isCandidate)
#endif
{
foreach (UnicastIPAddressInformation ip in item.GetIPProperties().UnicastAddresses)
{
//IPv4
if (Addfam == ADDRESSFAM.IPv4)
{
if (ip.Address.AddressFamily == AddressFamily.InterNetwork)
{
string s = ip.Address.ToString();
if (includeDetails) {
s += " " + item.Description.PadLeft(6) + item.NetworkInterfaceType.ToString().PadLeft(10);
}
output.Add(s);
}
}
//IPv6
else if (Addfam == ADDRESSFAM.IPv6)
{
if (ip.Address.AddressFamily == AddressFamily.InterNetworkV6)
{
output.Add(ip.Address.ToString());
}
}
}
}
}
return output;
}
}
【讨论】：
using UnityEngine;
using System.Collections;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using System;
using UnityEngine.Networking;
using Newtonsoft.Json;
public class geoplugin
{
//Assume E.g. before each comment
public string geoplugin_request; //THIS IS THE IP ADDRESS
public int geoplugin_status; //200
public string geoplugin_delay; //"1ms"
public string geoplugin_credit;
public string geoplugin_city; //E.g Toronto.
public string geoplugin_region; //E.g. Ontario
public string geoplugin_regionCode; //E.g. ON
public string geoplugin_regionName; //Also Ontario
public string geoplugin_areaCode; //idk
public string geoplugin_dmaCode; //idk
public string geoplugin_countryCode; //E.g. CA (that's Canada)
public string geoplugin_countryName; //E.g. Canada
public int geoplugin_inEU; //0 if not in EU
public bool geoplugin_euVATrate; //false
public string geoplugin_continentCode; //E.g. NA
public string geoplugin_continentName; //North America
public string geoplugin_latitude;
public string geoplugin_longitude;
public string geoplugin_locationAccuracyRadius; //"1"
public string geoplugin_timezone; //"America\/Toronto",
public string geoplugin_currencyCode; //"CAD",
public string geoplugin_currencySymbol; //"$",
public string geoplugin_currencySymbol_UTF8; //$",
public float geoplugin_currencyConverter;
}
public class GetMyIP : MonoBehaviour
{
geoplugin geoInfo;
string ip;
public void GetIP()
{
StartCoroutine(GetRequest("http://www.geoplugin.net/json.gp", (UnityWebRequest req) =>
{
if (req.isNetworkError || req.isHttpError)
{
Debug.Log($"{req.error}: {req.downloadHandler.text}");
}
else
{
geoplugin geopluginData = JsonConvert.DeserializeObject<geoplugin>(req.downloadHandler.text);
ip = geopluginData.geoplugin_request;
geoInfo = geopluginData;
Debug.Log(ip);
//AT THIS POINT IN THE CODE YOU CAN DO WHATEVER YOU WANT WITH THE IP ADDRESS
}
}));
}
IEnumerator GetRequest(string endpoint, Action<UnityWebRequest> callback)
{
using (UnityWebRequest request = UnityWebRequest.Get(endpoint))
{
// Send the request and wait for a response
yield return request.SendWebRequest();
callback(request);
}
}
}
这应该为您提供存储在字符串ip 中的 IP 地址，您可以随意使用它。这也有可能会为您提供大量信息，而这些信息首先需要 IP 地址。
这就是我的经验。我试图创建一个与真实世界天气相匹配的游戏天气系统，并且我希望通过 IP 地址找到位置，但本网站提供了两者，无需先获取 IP 地址。
这是我找出这段代码的教程：https://theslidefactory.com/using-unitywebrequest-to-download-resources-in-unity/
您还需要导入此代码才能正常工作：https://assetstore.unity.com/packages/tools/input-management/json-net-for-unity-11347
如果您只想要 IP 地址而不需要其他任何东西，那么这不是最佳解决方案。但是，大多数时候，您想对 IP 地址做一些事情，例如获取位置，这提供了很多您可能试图获取的东西。
【讨论】：
https://stackoverflow.com/a/67450052/18192881
关于 geofilter 数据帖子，根据他们的条款： “限制。 一般的。您不得，也不得允许他人：
ix：将服务用于识别或定位特定个人或家庭。”
所以我不会依赖他们，因为它是“非法的？”或至少违反他们的政策。
【讨论】：