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add methods

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This commit is contained in:
Looly 2023-12-28 19:00:35 +08:00
parent d1348eabcf
commit 3f8ee8a429
1 changed files with 22 additions and 1 deletions
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23
hutool-core/src/main/java/org/dromara/hutool/core/net/Ipv4Util.java
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@ -130,6 +130,27 @@ public class Ipv4Util implements Ipv4Pool {
* @return 本机网卡IP地址，获取失败返回{@code null}
*/
public static InetAddress getLocalhostDirectly() {
return getLocalhostDirectly(false);
}
/**
* 获取本机网卡IPv4地址，不使用缓存，规则如下：
*
* <ul>
* <li>必须非回路（loopback）地址、IPv4地址</li>
* <li>多网卡则返回第一个满足条件的地址</li>
* <li>如果无满足要求的地址，调用 {@link InetAddress#getLocalHost()} 获取地址</li>
* </ul>
*
* <p>
* 此方法不会抛出异常，获取失败将返回{@code null}<br>
* <p>
* 见：https://github.com/dromara/hutool/issues/428
*
* @param includeSiteLocal 是否包含局域网地址，如10.0.0.0 ~ 10.255.255.255、172.16.0.0 ~ 172.31.255.255、192.168.0.0 ~ 192.168.255.255
* @return 本机网卡IP地址，获取失败返回{@code null}
*/
public static InetAddress getLocalhostDirectly(final boolean includeSiteLocal) {
final LinkedHashSet<InetAddress> localAddressList = NetUtil.localAddressList(address ->
// 需为IPV4地址
address instanceof Inet4Address
@ -139,7 +160,7 @@ public class Ipv4Util implements Ipv4Pool {
// 10.0.0.0 ~ 10.255.255.255
// 172.16.0.0 ~ 172.31.255.255
// 192.168.0.0 ~ 192.168.255.255
&& !address.isSiteLocalAddress()
&& (includeSiteLocal || !address.isSiteLocalAddress())
// 非链路本地地址：169.254.0.0/16
&& !address.isLinkLocalAddress()
);