kotlin使用mapstruct（二）

這節主要介紹下如何調用其餘的mapper

1.修改上節用到的FlightConverter，新增List的映射

@Mapper
interface FlightConverter {
    fun convertToDto(flight: Flight) : FlightDto
    fun convertToModel(flightDto: FlightDto) : Flight
    fun flightToDtos(cars: List<Flight>): List<FlightDto>
    fun dtoToFlights(cars: List<FlightDto>): List<Flight>
}

2.添加新的業務類

import java.time.LocalDate

data class Person(var firstName: String?,
                  var lastName: String?,
                  var phoneNumber: String?,
                  var birthdate: LocalDate?,
                  var flight: Flight?,
                  var flights: List<Flight>) {
    // Necessary for MapStruct
    constructor() : this(null, null, null, null, null, listOf())
}

import java.time.LocalDate

data class PersonDto(var firstName: String?,
                     var lastName: String?,
                     var phone: String?,
                     var birthdate: LocalDate?,
                     var flightDto: FlightDto?,
                     var flights:List<FlightDto>) {
    // Necessary for MapStruct
    constructor() : this(null, null, null, null,null, listOf())
}

3.添加業務類的映射

//類中的方法，進行字段映射時會使用FlightConverter中定義的方法
@Mapper(uses = [FlightConverter::class])
interface PersonConverter {

     //配置對應字段
    @Mappings(value = [
        Mapping(source = "phoneNumber", target = "phone"),
        Mapping(source = "flight",target = "flightDto")
    ])
    fun convertToDto(person: Person) : PersonDto

    //對convertToDto實現逆映射，若是若是有多個方法，能夠經過name屬性
	//指定，如@InheritInverseConfiguration(name = "convertToDto")
    @InheritInverseConfiguration
    fun convertToModel(personDto: PersonDto) : Person

}

4.調用一下吧

val converter = Mappers.getMapper(PersonConverter::class.java) // or PersonConverterImpl()

    val flight = Flight(flightId = 1,flightName = "CX 101")
    val person = Person("Samuel",
            "Jackson",
            "0123 334466",
            LocalDate.of(1948, 12, 21),
            flight, listOf(flight))

    println(person)

    val personDto = converter.convertToDto(person)
    println(personDto)

    val personModel = converter.convertToModel(personDto)
    println(personModel)

輸出

Person(firstName=Samuel, lastName=Jackson, phoneNumber=0123 334466, birthdate=1948-12-21, flight=Flight(flightId=1, flightName=CX 101), flights=[Flight(flightId=1, flightName=CX 101)])
PersonDto(firstName=Samuel, lastName=Jackson, phone=0123 334466, birthdate=1948-12-21, flightDto=FlightDto(flightId=1, flightName=CX 101), flights=[FlightDto(flightId=1, flightName=CX 101)])
Person(firstName=Samuel, lastName=Jackson, phoneNumber=0123 334466, birthdate=1948-12-21, flight=Flight(flightId=1, flightName=CX 101), flights=[Flight(flightId=1, flightName=CX 101)])

發現已經生效了