编写.java文件，导入Unity。
unity版本必须大于2018.2及以上。
//JAVA
package com.test1;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class test {
//匹配C类地址的IP
public static final String regexCIp = "^192\\.168\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)$";
//匹配A类地址
public static final String regexAIp = "^10\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)$";
//匹配B类地址
public static final String regexBIp = "^172\\.(1[6-9]|2\\d|3[0-1])\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)\\.(\\d{1}|[1-9]\\d|1\\d{2}|2[0-4]\\d|25\\d)$";
public String getHostIp() {
String hostIp;
Pattern ip = Pattern.compile("(" + regexAIp + ")|" + "(" + regexBIp + ")|" + "(" + regexCIp + ")");
Enumeration<NetworkInterface> networkInterfaces = null;
try {
networkInterfaces = NetworkInterface.getNetworkInterfaces();
} catch (SocketException e) {
e.printStackTrace();
}
InetAddress address;
while (networkInterfaces.hasMoreElements()) {
NetworkInterface networkInterface = networkInterfaces.nextElement();
Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();
while (inetAddresses.hasMoreElements()) {
address = inetAddresses.nextElement();
String hostAddress = address.getHostAddress();
Matcher matcher = ip.matcher(hostAddress);
if (matcher.matches()) {
hostIp = hostAddress;
return hostIp;
}
}
}
return null;
}
}
编写Unity脚本：
using UnityEngine;
using UnityEngine.UI;
public class GetIPAddress : MonoBehaviour
{
public Text text;
// Start is called before the first frame update
void Start()
{
AndroidJavaObject jo = new AndroidJavaObject("com.test1.test");
AndroidJavaClass act = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
text.text = "IP:" + jo.Call<string>("getHostIp") + " 端口号:50000";
}
}
打包发布Android端进行测试：
