Scala DateTimeFormatter类代码示例

//设置package包名称以及导入依赖的类
package com.durooma.api.route

import java.sql.Date

import akka.http.scaladsl.marshallers.sprayjson.SprayJsonSupport
import com.durooma.api.model._
import com.durooma.db.Tables
import org.joda.time.DateTime
import org.joda.time.format.{DateTimeFormatter, ISODateTimeFormat}
import spray.json.{DefaultJsonProtocol, DeserializationException, JsString, JsValue, RootJsonFormat}


trait JsonSupport extends SprayJsonSupport with DefaultJsonProtocol {

  implicit object DateJsonFormat extends RootJsonFormat[DateTime] {

    private val parserISO : DateTimeFormatter = ISODateTimeFormat.dateTimeNoMillis()

    override def write(obj: DateTime) = JsString(parserISO.print(obj))

    override def read(json: JsValue) : DateTime = json match {
      case JsString(s) => parserISO.parseDateTime(s)
      case _ => throw DeserializationException("Invalid date format: " + json)
    }
  }

  implicit object SqlDateJsonFormat extends RootJsonFormat[Date] {

    override def write(obj: Date) = JsString(obj.toString)
    override def read(json: JsValue) = json match {
      case JsString(s) => Date.valueOf(s)
      case _ => throw DeserializationException("Invalid date format: " + json)
    }

  }

  implicit val userFormat = jsonFormat5(User.apply)
  implicit val userRegistrationFormat = jsonFormat5(UserRegistration.apply)
  implicit val accountFormat = jsonFormat4(Account.apply)
  implicit val accounBodyFormat = jsonFormat2(AccountBody.apply)
  implicit val labelFormat = jsonFormat3(Tables.LabelRow.apply)
  implicit val transactionFormat = jsonFormat8(Transaction.apply)
  implicit val transactionBodyFormat = jsonFormat7(TransactionBody.apply)
  implicit val sessionFormat = jsonFormat3(Session.apply)
  implicit val credentialsFormat = jsonFormat2(CustomCredentials.apply)

} 

//设置package包名称以及导入依赖的类
package me.lsbengine.json

import akka.http.scaladsl.marshallers.sprayjson.SprayJsonSupport
import me.lsbengine.api.admin.security.NewCredentials
import me.lsbengine.api.model.{FetchPostResponse, ListActionResponse, PostCreationResponse, TokenResponse}
import me.lsbengine.database.model.{AboutMe, HtmlMarkdownContent, NavBarConf, Post}
import org.joda.time.DateTime
import org.joda.time.format.{DateTimeFormatter, ISODateTimeFormat}
import spray.json._

import scala.util.Try

trait JSONSupport extends SprayJsonSupport with DefaultJsonProtocol with CollectionFormats {

  implicit object DateTimeFormat extends RootJsonFormat[DateTime] {

    val formatter: DateTimeFormatter = ISODateTimeFormat.dateTime

    override def read(json: JsValue): DateTime = json match {
      case JsString(s) => Try(formatter.parseDateTime(s)).fold(_ => error(s), identity)
      case _ =>
        error(json.toString())
    }

    override def write(obj: DateTime): JsValue = {
      JsString(formatter.print(obj))
    }

    def error(v: Any): DateTime = {
      val example = formatter.print(0)
      deserializationError(s"$v is not a valid date. Dates must be in ISO formatForForm : $example")
    }
  }

  //USED ONLY FOR BUILDINFO OTHERWISE STRANGE BEHAVIOUR
  implicit object AnyFormat extends JsonFormat[Any] {
    override def write(obj: Any): JsValue = JsString(s"$obj")

    override def read(json: JsValue): Any = json match {
      case JsString(s) => s
      case _ =>
        deserializationError(s"Expected a string, got $json")
    }
  }

  implicit val htmlMarkdownContentFormat: RootJsonFormat[HtmlMarkdownContent] = jsonFormat2(HtmlMarkdownContent)

  implicit val postFormat: RootJsonFormat[Post] = jsonFormat5(Post)
  implicit val aboutMeFormat: RootJsonFormat[AboutMe] = jsonFormat2(AboutMe)
  implicit val navbarFormat: RootJsonFormat[NavBarConf] = jsonFormat2(NavBarConf)
  implicit val tokenResponseFormat: RootJsonFormat[TokenResponse] = jsonFormat1(TokenResponse)
  implicit val listActionResponseFormat: RootJsonFormat[ListActionResponse] = jsonFormat1(ListActionResponse)
  implicit val fetchPostResponseFormat: RootJsonFormat[FetchPostResponse] = jsonFormat1(FetchPostResponse)
  implicit val postCreationResponseFormat: RootJsonFormat[PostCreationResponse] = jsonFormat1(PostCreationResponse)

  implicit val newCredentialsFormat: RootJsonFormat[NewCredentials] = jsonFormat3(NewCredentials)
} 

//设置package包名称以及导入依赖的类
package io.github.scamandrill.models

import org.joda.time.format.{DateTimeFormat, DateTimeFormatter, DateTimeFormatterBuilder}
import org.joda.time.{DateTime, DateTimeZone}
import play.api.libs.json._

object MandrillDateFormats {
  sealed trait MandrillDateFormatter extends Writes[DateTime] with Reads[DateTime] {
    def dateFormat: DateTimeFormatter
    override def writes(o: DateTime): JsValue = JsString(o.toString(dateFormat))
    override def reads(json: JsValue): JsResult[DateTime] =
      json.validate[String]
        .map(dateFormat.parseDateTime)
        .map(_.toDateTime(DateTimeZone.getDefault))
  }

  object DATETIME_FORMAT extends MandrillDateFormatter {
    override def dateFormat = {
      val baseFormatter = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss")
      val secondsFractionParser = new DateTimeFormatterBuilder()
        .appendLiteral('.')
        .appendFractionOfSecond(0, 9)
        .toParser

      new DateTimeFormatterBuilder()
        .append(
          baseFormatter.getPrinter,
          new DateTimeFormatterBuilder()
            .append(baseFormatter.getParser)
            .appendOptional(secondsFractionParser)
            .toParser
        )
        .toFormatter.withZoneUTC()
    }
  }

  object DATE_FORMAT extends MandrillDateFormatter {
    override def dateFormat = DateTimeFormat.forPattern("yyyy-MM-dd")
  }
} 

//设置package包名称以及导入依赖的类
package com.app.service.model

import org.joda.time.DateTime
import org.joda.time.format.{ DateTimeFormatter, ISODateTimeFormat }
import spray.json._

trait ServiceJsonFormatters extends DefaultJsonProtocol {

  val formatter: DateTimeFormatter = ISODateTimeFormat.dateTime()

  // Joda - DateTime
  implicit val jodaDateTimeJFConverter = new JsonFormat[DateTime] {
    override def write(obj: DateTime): JsValue = {
      formatter.print(obj).toJson
    }
    override def read(js: JsValue): DateTime = {
      formatter.parseDateTime(js.convertTo[String])
    }
  }

}