使用Gson Kotlin解析嵌套的JSON

implementation 'com.google.code.gson:gson:2.8.8'

{
  "name": "John Doe",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "New York",
    "state": "NY"
  }
}

data class Address(
    val street: String,
    val city: String,
    val state: String
)

data class Person(
    val name: String,
    val age: Int,
    val address: Address
)

val json = """{
  "name": "John Doe",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "New York",
    "state": "NY"
  }
}"""

val person = Gson().fromJson(json, Person::class.java)

println(person.name) // 输出: John Doe
println(person.age) // 输出: 30
println(person.address.street) // 输出: 123 Main St
println(person.address.city) // 输出: New York
println(person.address.state) // 输出: NY