gson - 使用 GSON 的 Kotlin 对象反序列化

Question

我有课

class ThreadComment(
    banned: Int,
    closed: Int,
    comment: String?,
    date: String?,
    email: String?,
    files: ArrayList<File>?,
    lasthit: Int,
    name: String?,
    num: String?,
    op: Int,
    parent: String?,
    postsCount: Int,
    sticky: Int,
    subject: String?,
    tags: String?,
    timestamp: Int,
    trip: String?) : Comment(banned, closed, comment, date, email, files, lasthit, name, num, op, parent, postsCount, sticky, subject, tags, timestamp, trip) {

val answers: ArrayList<String> = ArrayList()}

父类看起来像

open class Comment(
    @com.google.gson.annotations.SerializedName("banned")
    val banned: Int = 0,

    @com.google.gson.annotations.SerializedName("closed")
    val closed: Int = 0,

    @com.google.gson.annotations.SerializedName("comment")
    val comment: String? = null,

    @com.google.gson.annotations.SerializedName("date")
    val date: String? = null,

    @com.google.gson.annotations.SerializedName("email")
    val email: String? = null,

    @com.google.gson.annotations.SerializedName("files")
    val files: ArrayList<File>? = null,

    @com.google.gson.annotations.SerializedName("lasthit")
    val lasthit: Int = 0,

    @com.google.gson.annotations.SerializedName("name")
    val name: String? = null,

    @com.google.gson.annotations.SerializedName("num")
    val num: String? = null,

    @com.google.gson.annotations.SerializedName("op")
    val op: Int = 0,

    @com.google.gson.annotations.SerializedName("parent")
    val parent: String? = null,

    @com.google.gson.annotations.SerializedName("posts_count")
    val postsCount: Int = 0,

    @com.google.gson.annotations.SerializedName("sticky")
    val sticky: Int = 0,

    @com.google.gson.annotations.SerializedName("subject")
    val subject: String? = null,

    @com.google.gson.annotations.SerializedName("tags")
    val tags: String? = null,

    @com.google.gson.annotations.SerializedName("timestamp")
    val timestamp: Int = 0,

    @com.google.gson.annotations.SerializedName("trip")
    val trip: String? = null) : Serializable

但是在使用 GSON 反序列化之后，答案字段为空。

我也尝试将初始化放入 init{}，但它仍然为空，懒惰引发了关于在空对象引用上调用lazy.getValue 的异常

Answer 1

这很奇怪，我只是像在 Java 中一样正常使用 @SerializedName 和一个数据类并且它起作用了:

data class(@SerializedName("my_string_value") val myStringValue: String, @SerializedName("my_int_value") val myIntValue: Int)