使用Android中的MultipartEntity上傳3gpp音頻文件

Question

我想使用PHP發佈將android設備上的文件上傳到服務器。現在我研究了多部分實體上傳並修復了我的android設備上的所有內容，但它仍然無法工作，我只是不知道爲什麼，因爲這是我第一次嘗試爲android執行此操作。現在我已經是這個方法：

public void postFile(String file_path, String url){ 
     File file = new File(file_path); 

     try { 
      System.out.println(file_path); 
      HttpClient client = new DefaultHttpClient(); 
      HttpPost post = new HttpPost(url); 


      FileBody bin = new FileBody(file); 
      MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE); 
      reqEntity.addPart("file", bin); /*I believe that the "file" is the name in php part*/ 
      post.setEntity(reqEntity); 
      HttpResponse response = client.execute(post); 
      HttpEntity resEntity = response.getEntity(); 
      if (resEntity != null) { 
       Log.i("RESPONSE", EntityUtils.toString(resEntity)); 
      } 
     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } 

我用一個onclick監聽器調用此方法與此格式

postFile(record_location, "http://10.146.179.86/File%20upload/test.php"); 

，其中記錄的位置是這樣的：/mnt/sdcard/Echo/Recordings/Awesome4.3gpp

和PHP上傳代碼：

<?php 

$target_path = "Stored File/"; 

$target_path = $target_path . basename($_FILES['file']['name']); 

if(move_uploaded_file($_FILES['file']['tmp_name'], $target_path)) { 
echo "The file ". basename($_FILES['file']['name']). 
" has been uploaded"; 
} else{ 
echo "There was an error uploading the file, please try again!"; 
} 

?> 

我已經嘗試上傳，它的工作這就是爲什麼我認爲問題出在我的android方法中。順便說說這裏的logcat：

06-20 06:38:39.662  37-88/?        E/SurfaceFlinger: ro.sf.lcd_density must be defined as a build property 
06-20 06:38:39.912  278-294/system_process     I/ActivityManager: Displayed com.obpg.echo/.PlaybackEditActivity: +704ms 
06-20 06:38:41.933 3399-3399/com.obpg.echo     I/System.out: /mnt/sdcard/Echo/Recordings/Awesome4.3gpp 
06-20 06:38:42.132 3399-3399/com.obpg.echo     W/System.err: android.os.NetworkOnMainThreadException 
06-20 06:38:42.213 3399-3399/com.obpg.echo     W/System.err: at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117) 
06-20 06:38:42.222 3399-3399/com.obpg.echo     W/System.err: at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84) 
06-20 06:38:42.222 3399-3399/com.obpg.echo     W/System.err: at libcore.io.IoBridge.connectErrno(IoBridge.java:127) 
06-20 06:38:42.222 3399-3399/com.obpg.echo     W/System.err: at libcore.io.IoBridge.connect(IoBridge.java:112) 
06-20 06:38:42.222 3399-3399/com.obpg.echo     W/System.err: at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192) 
06-20 06:38:42.222 3399-3399/com.obpg.echo     W/System.err: at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459) 
06-20 06:38:42.222 3399-3399/com.obpg.echo     W/System.err: at java.net.Socket.connect(Socket.java:842) 
06-20 06:38:42.222 3399-3399/com.obpg.echo     W/System.err: at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119) 
06-20 06:38:42.222 3399-3399/com.obpg.echo     W/System.err: at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:144) 
06-20 06:38:42.233 3399-3399/com.obpg.echo     W/System.err: at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) 
06-20 06:38:42.233 3399-3399/com.obpg.echo     W/System.err: at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) 
06-20 06:38:42.233 3399-3399/com.obpg.echo     W/System.err: at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360) 
06-20 06:38:42.233 3399-3399/com.obpg.echo     W/System.err: at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) 
06-20 06:38:42.233 3399-3399/com.obpg.echo     W/System.err: at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 
06-20 06:38:42.243 3399-3399/com.obpg.echo     W/System.err: at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 
06-20 06:38:42.243 3399-3403/com.obpg.echo     D/dalvikvm: GC_CONCURRENT freed 347K, 12% free 3688K/4156K, paused 77ms+103ms, total 254ms 
06-20 06:38:42.252 3399-3399/com.obpg.echo     W/System.err: at com.obpg.echo.PlaybackEditActivity.postFile(PlaybackEditActivity.java:279) 
06-20 06:38:42.252 3399-3399/com.obpg.echo     W/System.err: at com.obpg.echo.PlaybackEditActivity$3.onClick(PlaybackEditActivity.java:126) 
06-20 06:38:42.252 3399-3399/com.obpg.echo     W/System.err: at android.view.View.performClick(View.java:4204) 
06-20 06:38:42.263 3399-3399/com.obpg.echo     W/System.err: at android.view.View$PerformClick.run(View.java:17355) 
06-20 06:38:42.263 3399-3399/com.obpg.echo     W/System.err: at android.os.Handler.handleCallback(Handler.java:725) 
06-20 06:38:42.263 3399-3399/com.obpg.echo     W/System.err: at android.os.Handler.dispatchMessage(Handler.java:92) 
06-20 06:38:42.263 3399-3399/com.obpg.echo     W/System.err: at android.os.Looper.loop(Looper.java:137) 
06-20 06:38:42.263 3399-3399/com.obpg.echo     W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5041) 
06-20 06:38:42.273 3399-3399/com.obpg.echo     W/System.err: at java.lang.reflect.Method.invokeNative(Native Method) 
06-20 06:38:42.273 3399-3399/com.obpg.echo     W/System.err: at java.lang.reflect.Method.invoke(Method.java:511) 
06-20 06:38:42.273 3399-3399/com.obpg.echo     W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
06-20 06:38:42.273 3399-3399/com.obpg.echo     W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
06-20 06:38:42.273 3399-3399/com.obpg.echo     W/System.err: at dalvik.system.NativeStart.main(Native Method) 

我在這裏錯過了什麼嗎？ 另外也許有人可以解釋我這個entity.addPart（）如何工作，因爲我不知道什麼是它說的內容正文，我應該指定什麼字符串。

Answer 1

從我的評論摘自：

android.os.NetworkOnMainThreadException說，你張貼在UI線程。通過後臺線程從AsynkTask調用postFile()。