在play Framework2.5中使用WSClient将Post文件和JSON body结合在一起

libraryDependencies += "com.typesafe.play" %% "play-ws" % "2.5.x"

import play.api.libs.ws._
import play.api.libs.json._
import play.api.libs.streams._
import akka.stream.scaladsl._
import akka.util.ByteString
import java.io.File

val wsClient = AhcWSClient()

val file = new File("/path/to/file")
val jsonBody = Json.obj("key" -> "value")

val request = wsClient.url("http://example.com/upload")
  .post(Source.fromIterator(() => Iterator(
    FilePart("file", "filename.txt", Some("text/plain"), FileIO.fromPath(file.toPath)),
    DataPart("json", Json.stringify(jsonBody))
  )))

request.flatMap { response =>
  if (response.status == 200) {
    // 请求成功
    val responseBody = response.body
    // 处理响应数据
  } else {
    // 请求失败
    val errorMessage = s"Request failed with status ${response.status}"
    // 处理错误
  }
}.recover {
  case ex: Exception =>
    // 处理异常
}.andThen {
  case _ =>
    // 关闭WSClient
    wsClient.close()
}