Kotlin Json 与 Data Class

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  1. 定义 Data Class

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    data class Topic(
      @SerializedName("id") val id: Long, 
      @SerializedName("name") val name: String, 
      @SerializedName("image") val image: String,
      @SerializedName("description") val description: String
    )

  2. 转换Json

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    val gson = Gson()
    val json = gson.toJson(topic)

  3. Json转Class

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    val json = getJson()
    val topic = gson.fromJson(json, Topic::class.java)