尝试添加@field到注释中@Element*。您可以将属性移动到构造函数，也可以data在类中添加修饰符。像这样：
@Root(name = "Feed", strict = false)
data class Feed(
@field:ElementList(name = "entry", inline = true)
var entriesList: List<Entry>? = null
)
@Root(name = "entry", strict = true)
data class Entry(
@field:Element(name = "id")
var id: String? = null,
@field:Element(name = "published")
var published: String? = null
)
有了这个，我就成功地反序列化了xml：
import org.simpleframework.xml.Element
import org.simpleframework.xml.ElementList
import org.simpleframework.xml.Root
import org.simpleframework.xml.core.Persister
private val testXml = """
<Feed>
<entry>
<id> someid </id>
<published> somedate </published>
</entry>
<entry>
<id> someid2 </id>
<published> somedate2 </published>
</entry>
</Feed>
""".trimIndent()
@Root(name = "Feed", strict = false)
data class Feed(
@field:ElementList(name = "entry", inline = true)
var entriesList: List<Entry>? = null
)
@Root(name = "entry", strict = true)
data class Entry(
@field:Element(name = "id")
var id: String? = null,
@field:Element(name = "published")
var published: String? = null
)
fun main(args: Array<String>) {
println(testXml)
val serializer = Persister()
val example = serializer.read(Feed::class.java, testXml)
println(example)
}
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