Kotlin modelMapper，Int to Float

Question

我使用Kotlin/Springboot，并希望使用ModelMapper映射到数据类。我想将account:balance：amount:int映射到accountdto:balance：float

来自：

data class Account(
        val id: String,
        var balance: Amount
)

data class Amount(var value: Int)

data class AccountDto(
        var id: String,
        var balance: Float?)

val modelMapper = ModelMapper()

modelMapper.addMappings(object : PropertyMap<Account, AccountDto>() {
    override fun configure() {
        map(source.balance.value / 100f, destination.balance)
    }
})

但我有这样的错误：

Caused by: org.modelmapper.ConfigurationException: ModelMapper configuration errors:

1) Cannot map final type ....accounts.Account.

2) Cannot map final method ....accounts.Account.getBalance().

3) Cannot map final type ....accounts.Amount.

4) Cannot map final method ....accounts.Amount.getValue().

5) Cannot map final type ....account.dto.AccountDto.

6) Cannot map final method ....account.dto.AccountDto.getBalance().

我现在不知道。

Answer 1

将val更改为var

data class Account(
        val id: String,
        var balance: Amount
)