在实际项目中，有调用微信支付完成支付功能，在微信支付的请求参数中需要传递一个本机的ip地址，java代码运行环境目前为windows10以及centos7.
以下为获取ip地址工具类：
package com.dq.schooldomain.utils; import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.UnknownHostException;
import java.util.Enumeration;
/**
* @Author Allen.Lv
* @Description //TODO
* @Date 9:50 2019/4/11
* @Desc: Coding Happy!
**/
public class IpAddress {
public static InetAddress getLocalHostLANAddress() throws UnknownHostException {
try {
InetAddress candidateAddress = null;
// 遍历所有的网络接口
for (Enumeration ifaces = NetworkInterface.getNetworkInterfaces(); ifaces.hasMoreElements();) {
NetworkInterface iface = (NetworkInterface) ifaces.nextElement();
// 在所有的接口下再遍历IP
for (Enumeration inetAddrs = iface.getInetAddresses(); inetAddrs.hasMoreElements();) {
InetAddress inetAddr = (InetAddress) inetAddrs.nextElement();
if (!inetAddr.isLoopbackAddress()) {// 排除loopback类型地址
if (inetAddr.isSiteLocalAddress()) {
// 如果是site-local地址，就是它了
return inetAddr;
} else if (candidateAddress == null) {
// site-local类型的地址未被发现，先记录候选地址
candidateAddress = inetAddr;
}
}
}
}
if (candidateAddress != null) {
return candidateAddress;
}
// 如果没有发现 non-loopback地址.只能用最次选的方案
InetAddress jdkSuppliedAddress = InetAddress.getLocalHost();
if (jdkSuppliedAddress == null) {
throw new UnknownHostException("The JDK InetAddress.getLocalHost() method unexpectedly returned null.");
}
return jdkSuppliedAddress;
} catch (Exception e) {
UnknownHostException unknownHostException = new UnknownHostException(
"Failed to determine LAN address: " + e);
unknownHostException.initCause(e);
throw unknownHostException;
}
}
}
在服务器上跑代码可以测试