android - moshi kotlin 非构造函数属性未序列化

Question

我有一个这样定义的类：

data class Medicalnfo(
            @Json(name = "allergies") val allergies: List<Allergy>? = null
    ): ProfileModel(){
        @Json(name = "has_allergies") val hasAllergies: Boolean = allergies != null && allergies.isNotEmpty()
    }

问题是MoshihasAllergies生成的 json 序列化中不包含它。如何做到这一点？

这是测试

@Test
fun medicalInfoJsonContainsFlags(){
    val adapter = moshi.adapter(Medicalnfo::class.java)
    val jsonStr = adapter.toJson(Medicalnfo(allergies = listOf())) //value is {"allergies":[]}
    assert(jsonStr.contains("has_allergies"))
}

Answer 1

如果你hasAllergies做为 var 它会工作

data class Medicalnfo(
            @Json(name = "allergies") val allergies: List<Allergy>? = null
): ProfileModel(){
     @Json(name = "has_allergies") var hasAllergies: Boolean = allergies != null && allergies.isNotEmpty()
}