Question

我正在尝试将简单的文本文件上传到ftp，代码可以在PC上运行。在Android上，该应用程序成功连接到ftp，但是当我尝试上传文件时，我得到“2031：错误＃2031：套接字错误”。有什么想法吗？

代码（来自http://suzhiyam.wordpress.com/2011/04/）是：

import flash.events.ProgressEvent;

import flash.events.Event;

导入flash.net.Socket;

import flash.events.IOErrorEvent;

import flash.errors.IOError;

import flash.filesystem.FileStream;

import flash.filesystem.File;

import flash.utils.ByteArray;

import flash.events.MouseEvent;

msg.text =“等等！连接到ftp服务器！”

//

var ftp_host：String =“ * ”; //原始代码中的FTP设置正确...

var ftp_port：Number = 21;

var ftp_username：String =“ * ”;

var ftp_password：String =“ * ”;

//

//在此演示中，我们将手动输入应从中进行上载或下载的远程服务器文件夹

var remoteFolderStr：String;

var localFolderStr：String;

var remoteFile：String;

//将用于连接到ftp服务器的套接字实例

var s = new Socket（ftp_host，ftp_port）;

s.addEventListener（IOErrorEvent.IO_ERROR，onIOERR）;

s.addEventListener（ProgressEvent.SOCKET_DATA，onReturnData）;

s.addEventListener（Event.CONNECT，onConnectHandler）;

//

//将用于连接以接收ftp服务器发送的数据的套接字实例

var r：Socket = new Socket（）;

r.addEventListener（ProgressEvent.SOCKET_DATA，onServData）;

r.addEventListener（Event.CONNECT，onPasvConn）;

r.addEventListener（IOErrorEvent.IO_ERROR，onIOERR）;

//对于客户端发送到ftp服务器的每个命令，服务器返回带有返回码的消息

函数onReturnData（evt：ProgressEvent）

{

var d = s.readUTFBytes(s.bytesAvailable);

trace(d);

//check here for complete list of return codes and their meaning

//- http://en.wikipedia.org/wiki/List_of_FTP_server_return_codes



// the return message will have a 3 digit return code followed by a space and related message

// if the 3 digit return code is followed by "-" the it will be a multiline message

//-wait until the line with 3 digit code followed by space is delivered

if (d.indexOf("220 ") > -1)

{

    msg.text="Logging in to ftp server!"

    //connected to ftp server send user name to server

    s.writeUTFBytes("USER "+ftp_username+"\n");

    s.flush();

}

if (d.indexOf("331 ") > -1)

{

    //Username accepted now send password to server

    s.writeUTFBytes("PASS "+ftp_password+"\n");

    s.flush();

}

if (d.indexOf("230") > -1 && d.indexOf("OK.") > -1)

{

    msg.text="Log in successful!"

    //Password accepted - lets enetr passive mode and retrive a list of files from a directory

    //first enetr passive mode

    //s.writeUTFBytes("PASV \n");

    //s.flush();



}

var a = d.indexOf('227');

if (a > -1)

{

    //Entering passive mode message will be returned along with it details of ip and port address will be returned

    //-we have to connect to that address to receive the data

    //format of the message will be: 227 Entering Passive Mode (209,190,85,253,148,206)

    //the data inside brackets is the ip and port address, first four numbers represent IP and last 2 PORT

    //the port value have to be calculated by multiplying the 5th number with 256 and adding the 6th number to it

    //here in this example IP is 209.190.85.253 , PORT is (148*256)+206 = 38094

    var st = d.indexOf("(",a);

    var en = d.indexOf(")",a);

    var str;

    str = d.substring(st + 1,en);

    var a2 = str.split(",");

    var p1 = a2.pop();

    var p2 = a2.pop();

    var ip:String = a2.join(".");

    var port:int=(p2*256)+(p1*1);

    r.connect(ip, port);

}

if (d.indexOf("226 ") > -1)

{

    //Data Transfer completed

    //s.writeUTFBytes("QUIT \n");

    //s.flush();

    if (process=='download')

    {

        msg.text="DOWNLOAD_COMPLETE"



    }

    if (process=='upload')

    {

        msg.text="UPLOAD_COMPLETE"

    }

    dispatchEvent(new Event("dataReceived"))

}

if (d.indexOf("221 ") > -1)

{

    //LOGGED OUT from server

}

//Response code 150 will be sent by server whenever a data connection is established after we send 'PASV' command

if (d.indexOf("150 ") > -1)

{

    if (process == 'upload')

    {

        //Once data connection is established we can start sending the data to the server

        startSendingData();

    }

}

}

function onConnectHandler（evt：Event）

{

msg.text="CONNECTED TO FTP SERVER!"

trace("CONNECTED TO FTP SERVER");

//Client has connected to ftp server

}

function onPasvConn（evt：Event）：void

{

trace("CONNECTED TO DATA PORT");



//s.writeUTFBytes("LIST /your/folder/path\n");



if (process=='upload')

{

    //To Upload a file send following command

    //STOR is the command followed by a space and path wher to store the file in remote server

    //-with the name of the file to be saved as..you can provide any name with extension

    s.writeUTFBytes("STOR /test.txt\n");

}

s.flush();

}

function onServData（evt：ProgressEvent）：void

{

//DATA RECEIVED FROM SERVER THRO DATA PORT

}

函数onIOERR（evt：IOErrorEvent）

{

trace(evt.errorID+":"+evt.text);

}

//

var process：String =“”; //用于存储正在执行的操作的变量

var writeToStream：Boolean; //此处未使用

var localFile：File; //要上传的本地文件

var localFolder：File; //要下载的文件存储到的本地文件夹

var interval：Number;

var bufferSize：int;

//

BTN_Upload.addEventListener（MouseEvent.CLICK，initUpload）;

function initUpload（evt：MouseEvent = null）：void

{

//called when upload event is triggered

startUploadProcess();

}

function startUploadProcess（）：void

{

process = "upload";

//You need to pass this command 'TYPE I' to set data transfer mode as binary

s.writeUTFBytes("TYPE I\n");

s.writeUTFBytes("PASV \n");

s.flush();

}

function startSendingData（）：void

{

var textToUpload:String = "This is a test";



bufferSize = textToUpload.length;



var ba:ByteArray = new ByteArray();



//Store the info you want to upload in ByteArray HERE

ba.writeMultiByte(textToUpload, "iso-8859-1");



r.writeBytes(ba, 0, ba.bytesAvailable);

r.flush();

}

air for android - 无法上传到FTP

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