从Windows Mobile设备传输文件到...任何地方

Question

我似乎无法找到解决此问题的方法。我试图让Windows Mobile 6上的Compact Framework应用程序能够将本地文件系统上的文件移动到另一个系统。

这里是我所知道的解决方案：

• FTP - 这一问题是大多数 的API是这样昂贵的使用。

• HTTP PUT - 就我所能找到的，我不能在IIS7上使用匿名PUT，这就是系统运行的Web服务器。 （对此的一个极端解决方法是使用不同的Web服务器来放置文件，并让其他系统将其传输到IIS系统）。

• Windows共享 - 我需要对共享进行身份验证，而且我还没有看到通过Windows Mobile传递此身份验证的方法。

最后一招是要求这些设备被环抱传输这些文件，但我真的喜欢要能够有这些文件进行无线传输。

Answer 1

我最终只是通过PHP脚本将信息传递给Web服务器。

上面提供的选项只是没有解决我的情况。

这是它的要义。我在里面有一些代码，其中包含进度条和与简单发送文件无关的各种检查和处理程序，但我相信你可以通过它进行选择。我已经从C＃和PHP中删除了我的身份验证代码，但如果有必要，它不应该太难以推出自己的身份验证代码。

在C＃中：（！为了你的利益详尽的注释）

/* 
* Here's the short+sweet about how I'm doing this 
* 1) Copy the file from mobile device to web server by querying PHP script with paramaters for each line 
* 2) PHP script checks 1) If we got the whole data file 2) If this is a duplicate data file 
* 3) If it is a duplicate, or we didn't get the whole thing, it goes away. The mobile 
* device will hang on to it's data file in the first case (if it's duplicate it deletes it) 
* to be tried again later 
* 4) The server will then process the data files using a scheduled task/cron job at an appropriate time 
*/ 
private void process_attempts() 
{ 

    Uri CheckUrl = new Uri("http://path/to/php/script?action=check"); 
    WebRequest checkReq = WebRequest.Create(CheckUrl); 
    try 
    { 
     WebResponse CheckResp = checkReq.GetResponse(); 
     CheckResp.Close(); 
    } 
    catch 
    { 
     MessageBox.Show("Error! Connection not available. Please make sure you are online."); 
     this.Invoke(new Close(closeme)); 
    } 
    StreamReader dataReader = File.OpenText(datafile); 
    String line = null; 
    line = dataReader.ReadLine(); 
    while (line != null) 
    { 
     Uri Url = new Uri("http://path/to/php/script?action=process&line=" + line); 
     WebRequest WebReq = WebRequest.Create(Url); 
     try 
     { 
      WebResponse Resp = WebReq.GetResponse(); 
      Resp.Close(); 
     } 
     catch 
     { 
      MessageBox.Show("Error! Connection not available. Please make sure you are online."); 
      this.Invoke(new Close(closeme)); 
      return; 
     } 
     try 
     { 
      process_bar.Invoke(new SetInt(SetBarValue), new object[] { processed }); 
     } 
     catch { } 
     process_num.Invoke(new SetString(SetNumValue), new object[] { processed + "/" + attempts }); 
     processed++; 
     line = dataReader.ReadLine(); 
    } 
    dataReader.Close(); 
    Uri Url2 = new Uri("http://path/to/php/script?action=finalize&lines=" + attempts); 
    Boolean finalized = false; 
    WebRequest WebReq2 = WebRequest.Create(Url2); 
    try 
    { 
     WebResponse Resp = WebReq2.GetResponse(); 
     Resp.Close(); 
     finalized = true; 
    } 
    catch 
    { 
     MessageBox.Show("Error! Connection not available. Please make sure you are online."); 
     this.Invoke(new Close(closeme)); 
     finalized = false; 
    } 
    MessageBox.Show("Done!"); 
    this.Invoke(new Close(closeme)); 
} 

在PHP：

<?php 

//Get the GET'd values from the C# 

//The current line being processed 
$line = $_GET['line']; 
//Which action we are doing 
$action = $_GET['action']; 
//# of lines in the source file 
$totalLines = $_GET['lines']; 

//If we are processing the line, open the data file, and append this new line and a newline. 
if($action == "process"){ 
    $dataFile = "tempdata/SOME_KIND_OF_UNIQUE_FILENAME.dat"; 
    //open the file 
    $fh = fopen($dataFile, 'a'); 
    //Write the line, and a newline to the file 
    fwrite($fh, $line."\r\n"); 
    //Close the file 
    fclose($fh); 
    //Exit the script 
    exit(); 
} 

//If we are done processing the original file from the C# application, make sure the number of lines in the new file matches that in the 
//file we are transferring. An expansion of this could be to compare some kind of hash function value of both files... 
if($action == "finalize"){ 
    $dataFile = "tempdata/SOME_KIND_OF_UNIQUE_FILENAME.dat"; 
    //Count the number of lines in the new file 
    $lines = count(file($dataFile)); 
    //If the new file and the old file have the same number of lines... 
    if($lines == $totalLines){ 
     //File has the matching number of lines, good enough for me over TCP. 
      //We should move or rename this file. 
    }else{ 
     //File does NOT have the same number of lines as the source file. 
    } 
    exit(); 
} 

if($action == "check"){ 
    //If a file with this unique file name already exists, delete it. 
    $dataFile = "tempdata/SOME_KIND_OF_UNIQUE_FILENAME.dat"; 
    if(file_exists($dataFile)){ 
     unlink($dataFile); 
    } 
} 
?> 

Answer 2

• FTP：定义“太贵”。你的意思是性能或字节开销或美元成本？ Here's a free one with source。

• HTTP：IIS7当然支持托管web services或custom IHttpHandlers。你可以很容易地使用数据上传。

• 一个Windows共享只需要你去P/Invoke the WNet APIs to map the share，但它并不复杂。