Scala 和 HttpClient : How do I resolve this error?

Question

我将 scala 与 Apache HttpClient 一起使用，并通过示例进行操作。我收到以下错误:

/Users/name/IdeaProjects/JakartaCapOne/src/JakExamp.scala
   Error:Error:line (16)error: overloaded method value execute with alternatives 
(org.apache.http.HttpHost,org.apache.http.HttpRequest)org.apache.http.HttpResponse 
<and> 
(org.apache.http.client.methods.HttpUriRequest,org.apache.http.protocol.HttpContext)org.apache.http.HttpResponse
 cannot be applied to 
(org.apache.http.client.methods.HttpGet,org.apache.http.client.ResponseHandler[String])
val responseBody = httpclient.execute(httpget, responseHandler)

这是突出显示错误和问题行的代码:

import org.apache.http.client.ResponseHandler
import org.apache.http.client.HttpClient
import org.apache.http.client.methods.HttpGet
import org.apache.http.impl.client.BasicResponseHandler
import org.apache.http.impl.client.DefaultHttpClient


object JakExamp {
 def main(args : Array[String]) : Unit = {
   val httpclient: HttpClient = new DefaultHttpClient
   val httpget: HttpGet = new HttpGet("www.google.com")

   println("executing request..." + httpget.getURI)
   val responseHandler: ResponseHandler[String] = new BasicResponseHandler
   val responseBody = httpclient.execute(httpget, responseHandler)
   // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   println(responseBody)

   client.getConnectionManager.shutdown

 }
}

我可以在 java 中成功运行示例...

Answer 1

我也不得不处理这个问题。尝试如下操作:

val handler:ResponseHandler[String] = new BasicResponseHandler
val request = new HttpGet("...")
val response = client execute request
val body = handler handleResponse response

这对我来说在 2.7.7 中工作得很好。它只有 1 条额外的线，所以还不错。