Scala CookBook: http://scalacookbook.com/

@throws(classOf[java.io.IOException])

@throws(classOf[java.net.SocketTimeoutException])

def get(url: String,

        connectTimeout:Int =5000,

        readTimeout:Int =5000,

        requestMethod: String = "GET") = {

    import java.net.{URL, HttpURLConnection}

    val connection = (new URL(url)).openConnection.asInstanceOf[HttpURLConnection]

    connection.setConnectTimeout(connectTimeout)

    connection.setReadTimeout(readTimeout)

    connection.setRequestMethod(requestMethod)

    val inputStream = connection.getInputStream

    val content = io.Source.fromInputStream(inputStream).mkString

    if (inputStream != null) inputStream.close

    content

}

if want to set the request property, add:
for (header <- headers) {
   val headerDetails = header.split(":")
   if (headerDetails.size<=2) {
      connection.setRequestProperty(headerDetails(0), headerDetails(1));
   }
}