如何在Kotlin中解析URL字符串以获取仅限域名？

import java.net.URI
import java.net.URL

fun getDomainFromUrl(urlString: String): String? {
    try {
        val url = URL(urlString)
        val uri = URI(url.protocol, url.userInfo, url.host, url.port, url.path, url.query, url.ref)
        return uri.host
    } catch (e: Exception) {
        e.printStackTrace()
    }
    return null
}

val urlString = "https://www.example.com/path?param=value"
val domain = getDomainFromUrl(urlString)
println("域名：$domain")