Android 异步 FTP

Question

我正在尝试使用 ASync 任务通过 FTP 发送文件，这是我目前发现的但无法调用它来发送文件:

package com.hdwinc.hdworderentry;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.SocketException;
import java.net.UnknownHostException;

import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;

import android.os.AsyncTask;
import android.util.Log;

public abstract class HDWFTP_Upload extends AsyncTask{
//void FTP_DATA_UPLOAD(String FULL_PATH_TO_LOCAL_FILE)


 protected Long doInBackground(String... FULL_PATH_TO_LOCAL_FILE ) {
  // encapsulate FTP inside a A sync task

  {
   System.out.println("Entered FTP transfer function");

   FTPClient ftpClient = new FTPClient();
   int reply;
  try {
   System.out.println("Entered Data Upload loop!");
      ftpClient.connect(ServerName,21);
      ftpClient.login(Username, Password);
      ftpClient.sendCommand("QUOTE SITE NAMEFMT 1");
      ftpClient.changeWorkingDirectory("/OPTICON/");
      System.out.println("Entered Data Upload loop!");


      reply = ftpClient.getReplyCode();


      if(FTPReply.isPositiveCompletion(reply)){
       System.out.println("Connected Success");
      }else {
       System.out.println("Connection Failed");
       ftpClient.disconnect();
      }



      if (ftpClient.getReplyString().contains("250")) {
          ftpClient.setFileType(org.apache.commons.net.ftp.FTP.BINARY_FILE_TYPE);
          BufferedInputStream buffIn = null;
          System.out.println("Created an input stream buffer");
          System.out.println(FULL_PATH_TO_LOCAL_FILE.toString());

          buffIn = new BufferedInputStream(new          FileInputStream(FULL_PATH_TO_LOCAL_FILE[0]));
          ftpClient.enterLocalPassiveMode();

          System.out.println("Entered binary and passive modes");
          //Handler progressHandler=null;
    //ProgressInputStream progressInput = new ProgressInputStream(buffIn,    progressHandler);

          //Code to Extract name from the string.
          //http://stackoverflow.com/questions/10549504/obtain-name-from-absolute-  path-substring-from-last-slash-java-android
          String Picture_File_name = new File(FULL_PATH_TO_LOCAL_FILE[0]).getName();


          boolean result = ftpClient.storeFile(Picture_File_name, buffIn);     //localAsset.getFileName()
          //ProgressInputStream progressInput = new ProgressInputStream(buffIn,   progressHandler);

          if (result){
           System.out.println("Success");
          }

          //boolean result = ftpClient.storeFile("TEST.jpg", progressInput);
          System.out.println("File saved");


          //buffIn.close();
          ftpClient.logout();
          ftpClient.disconnect();
      }

  } catch (SocketException e) {
      Log.e("Citizen Cam FTP", e.getStackTrace().toString());
      System.out.println("Socket Exception!");
  } catch (UnknownHostException e) {
      Log.e("Citizen Cam FTP", e.getStackTrace().toString());
  } catch (IOException e) {
      Log.e("Citizen Cam FTP", e.getStackTrace().toString());
      System.out.println("IO Exception!");
  }

  return null;
 }


 } 


}

如何在另一个 Activity 中调用它？我的订单 Activity 创建了一个文件，我需要将其发送到服务器。

Answer 1

我删除了每个#Squonk 的抽象引用，并查看了#Mike M 提供的两个页面并提出了一个解决方案。

谢谢大家。

public class HDWFTP_Upload extends AsyncTask <String, Void, Long>{



 protected Long doInBackground(String... FULL_PATH_TO_LOCAL_FILE ) {

  {


   FTPClient ftpClient = new FTPClient();
   int reply;
  try {
   System.out.println("Entered Data Upload loop!");
      ftpClient.connect(servername,21);
      ftpClient.login(user, pass);
      ftpClient.sendCommand("QUOTE SITE NAMEFMT 1");
      ftpClient.changeWorkingDirectory("/OPTICON/");          


      reply = ftpClient.getReplyCode();


      if(FTPReply.isPositiveCompletion(reply)){
       System.out.println("Connected Success");
      }else {
       System.out.println("Connection Failed");
       ftpClient.disconnect();
      }



      if (ftpClient.getReplyString().contains("250")) {
          ftpClient.setFileType(org.apache.commons.net.ftp.FTP.BINARY_FILE_TYPE);
          BufferedInputStream buffIn = null;
          System.out.println("Created an input stream buffer");
          System.out.println(FULL_PATH_TO_LOCAL_FILE.toString());

          buffIn = new BufferedInputStream(new FileInputStream(FULL_PATH_TO_LOCAL_FILE[0]));
          ftpClient.enterLocalPassiveMode();

          System.out.println("Entered binary and passive modes");

          String Picture_File_name = new File(FULL_PATH_TO_LOCAL_FILE[0]).getName();


          boolean result = ftpClient.storeFile(Picture_File_name, buffIn);

          if (result){
           System.out.println("Success");
          }


          System.out.println("File saved");



          ftpClient.logout();
          ftpClient.disconnect();
      }

  } catch (SocketException e) {
      Log.e("HDW FTP", e.getStackTrace().toString());
      System.out.println("Socket Exception!");
  } catch (UnknownHostException e) {
      Log.e("HDW FTP", e.getStackTrace().toString());
  } catch (IOException e) {
      Log.e("HDW FTP", e.getStackTrace().toString());
      System.out.println("IO Exception!");
  }

  return null;

  }




 }

调用方式:

new HDWFTP_Upload().execute(uploadFile);