// 我在StackOverflow的某处看到一个回复，可以像这样动态设置表名：
@DynamoDBTable(tableName = "${dynamodb.mentions}")
data class MentionItem (
    @DynamoDBHashKey(attributeName = "mentioned_user")
    var mentionedUserId: String = "",
    @DynamoDBRangeKey(attributeName = "message_id")
    var messageId: String = "",
    @DynamoDBAttribute(attributeName = "mentioned_tag")
    var mentionedTag: String? = null
)

// 需要补充的是，当我尝试在另一个类中像这样访问表名时，Spring会从我的属性文件中获取值：
@Value("${dynamodb.mentions}")
lateinit var mentionsTableName: String

DynamoDBMapperConfig.Builder().withTableNameOverride(TableNameOverride.withTableNameReplacement(yourTableName)).build()

@Service
class MessageService() {
    @Value("${dynamodb.mentions}")
    lateinit var mentionsTableName: String
    fun postMentions(messageId: String, mentionedEmployeeId: String, mentionedTag: String) {
        val mapper = DynamoDBMapper(dynamoConfiguration.amazonDynamoDB())
        val mapperConfig =
            DynamoDBMapperConfig.Builder().withTableNameOverride(TableNameOverride.withTableNameReplacement(mentionsTableName))
                .build()
        mapper.save(
                MentionDevItem(
                    mentionedUserId = it.mentionedEmployeeId,
                    messageId = messageId,
                    mentionedTag = it.mentionedTag,
                ),
                mapperConfig,
            )
    }
}