Scala 仅显示一个键值的HashMap

下面是我为两个不同的键输入地址的代码，但我只得到一个键值，即“Address\u HOME”

我不知道“地址邮件”是不是被替换了

  var homeAddress = new Address
  var mailAddress = new Address

  homeAddress.setAddressLine1(recordString(EmployeeJobMetadata.homeAddressLine1.id))
  mailAddress.setAddressLine1(recordString(EmployeeJobMetadata.mailAddressLine1.id))

  var addressMailMap = new HashMap[String, Address]
  addressMailMap.put(mailAddress.ADDRESS_MAIL, mailAddress)

  var homeAddressMap = new HashMap[String, Address]
  homeAddressMap.put(homeAddress.ADDRESS_HOME, homeAddress)

  employeePersonalData.setAddressMap(addressMailMap)

  employeePersonalData.setAddressMap(homeAddressMap)

Pojo类：

@DynamoDBDocument
class EmployeePersonalData {

@BeanProperty
var firstName: String = _

@BeanProperty
var lastName: String = _

@BeanProperty
var addressMap: Map[String, Address] = _ 
  }

---

您正在创建并添加两个单独的HashMap（

addressMailMap

和

addressMailMap

），然后将它们分配到

employeePersonalData

中的相同字段（通过

setAddressMap

）：

employeePersonalData.setAddressMap(addressMailMap)
employeePersonalData.setAddressMap(homeAddressMap) // ref to addressMailMap is replaced by ref to homeAddressMap

如果您希望两个地址都在一个映射中，那么您应该只实例化一个hashmap并将地址放入其中