在play-ws多部分请求中发送json部分

import play.api.libs.ws._
import play.api.libs.json._

val jsonPart = Json.obj(
  "key1" -> "value1",
  "key2" -> "value2"
)

val request = ws.url("http://example.com/upload")
  .post(MultipartFormData(Seq(
    MultipartFormData.DataPart("name", "file.txt"),
    MultipartFormData.JsonPart("json", jsonPart, "application/json")
  )))

request.map { 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
  }
}