HTTP请求,并将结果save到本地文件

import scala.io.Source

object HttpGet {
  def main(args: Array[String]): Unit = {
    println("begin")
    for (line <- Source.fromFile("c:/videoid.txt").getLines) {
      try {
        val videoid = line trim;
        val content = get("http://localhost:9080/services?id=" + videoid)
        println(content)

        writeToFile("c:/video/BLUETUBE-" + videoid + ".xml", content)
      } catch {
        case ioe: java.io.IOException             => // handle this
        case ste: java.net.SocketTimeoutException => // handle this
      }
    }
  }

  def writeToFile(path: String, content: String): Unit = {
    import java.io.{ File, PrintWriter }
    val pw = new PrintWriter(path, "UTF-16")
    try pw.write(content) finally pw.close()
  }

  @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
    }
}

 

 

http://stackoverflow.com/questions/4604237/how-to-write-to-a-file-in-scala

Java中,你可以使用`java.net.URLConnection`或者第三方库如`Apache HttpClient`或`OkHttp`来发送POST请求下载文件。以下是一个基本示例,使用`URLConnection`: ```java import java.io.FileOutputStream; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.URL; public class FileDownloadExample { public static void main(String[] args) { String downloadUrl = "http://example.com/file-to-download"; // 替换为你实际的文件下载地址 String saveFilePath = "/path/to/save/downloaded/file"; // 替换为你想要保存的位置 try { URL url = new URL(downloadUrl); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("POST"); // 设置请求方法为POST,如果需要可以添加其他请求头 // 如果有post数据,设置连接的Content-Type和POST数据 if (!connection.getRequestProperty("Content-Type").isEmpty()) { connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); } connection.connect(); // 连接服务器 int responseCode = connection.getResponseCode(); if (responseCode == HttpURLConnection.HTTP_OK) { // 检查HTTP状态码是否为200 InputStream inputStream = connection.getInputStream(); FileOutputStream outputStream = new FileOutputStream(saveFilePath); byte[] buffer = new byte[4096]; int bytesRead; while ((bytesRead = inputStream.read(buffer)) != -1) { outputStream.write(buffer, 0, bytesRead); } outputStream.close(); inputStream.close(); System.out.println("File downloaded successfully."); } else { System.err.println("Failed to download file. Server responded with code: " + responseCode); } } catch (Exception e) { e.printStackTrace(); } } } ```
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