我试图通过建立一个实践博客来加快 Postgres 和 Kotlin 的速度。现在,我只是在处理虚拟内容,但几周后,我将开始一个更大的项目。我在示例应用程序中生成的时间戳似乎有点疯狂。我在这里做错了什么?
我得到了一些巨大的日期对象,我真的只想要一个像 psql sh 这样的时间戳:
SELECT * FROM posts;
id | title | content | type | status | datecreated | datemodified
----+-----------+---------------------+-----------+--------+----------------------------+----------------------------
1 | Hey there | This is the content | Hey there | draft | 2019-01-04 20:28:05.978762 | 2019-01-04 20:28:05.978762
控制器:
class PostController {
fun index(): ArrayList<Post> {
val posts: ArrayList<Post> = arrayListOf()
transaction {
Posts.selectAll().map { it ->
posts.add(Post(
id = it[Posts.id], content = it[Posts.content],
title = it[Posts.title], type = it[Posts.type],
status = it[Posts.status], dateCreated = it[Posts.dateCreated],
dateModified = it[Posts.dateModified]
))
}
}
return posts
}
}
数据类:
import org.joda.time.DateTime
data class Post(
val id: Int,
val title: String,
val content: String,
val type: String,
val status: String,
val dateCreated: DateTime?,
val dateModified: DateTime?
)
我正在使用 Jetbrains Exposed 库。它没有在文档中提到这样的事情:
导入 org.jetbrains.exposed.sql.Table
object Posts : Table() {
val id = integer("id").primaryKey().autoIncrement()
val title = text("title")
val content = text("content")
val type = text("type")
val status = text("status")
val dateCreated = datetime("datecreated")
val dateModified = datetime("datemodified")
}
回复:
{
"id": 1,
"title": "Hey there",
"content": "This is the content",
"type": "Hey there",
"status": "draft",
"dateCreated": {
"iMillis": 1546651744314,
"iChronology": {
"iBase": {
"iBase": {
"iBase": {
"iMinDaysInFirstWeek": 4
}
},
"iParam": {
"iZone": {
"iTransitions": [
-9223372036854776000,
...... goes on, seemingly forever