Client-Server: Dateitransfer von Android zu PC über Socket
Ich versuche, ein von mir ausgewähltes Bild aus der Galerie auf meinem Telefon zu senden und dieses Bild vom Telefon an meinen PC zu senden. Wenn ich auf die Schaltfläche klicke, sollte es den Pfad des Bildes übernehmen, es in eine Datei einfügen und es übertragen auf meinen PC. Ich habe den Code auf meinem PC überprüft - für beide Seiten - und es hat einwandfrei funktioniert.
Wenn ich es ausprobiere, passiert nichts!
Hier ist der Code:
Serverseite:
<code> import java.io.*; import java.net.*; public class FileServer { public static void main(String[] args) throws IOException { int filesize=6022386; // filesize temporary hardcoded long start = System.currentTimeMillis(); int bytesRead; int current = 0; // create socket ServerSocket servsock = new ServerSocket(1149); while (true) { System.out.println("Waiting..."); Socket sock = servsock.accept(); System.out.println("Accepted connection : " + sock); // receive file byte [] mybytearray = new byte [filesize]; InputStream is = sock.getInputStream(); FileOutputStream fos = new FileOutputStream("C:\\Users\\Arwa\\Documents\\WebOffice.jpg"); // destination path and name of file BufferedOutputStream bos = new BufferedOutputStream(fos); bytesRead = is.read(mybytearray,0,mybytearray.length); current = bytesRead; // thanks to A. Cádiz for the bug fix do { bytesRead = is.read(mybytearray, current, (mybytearray.length-current)); if(bytesRead >= 0) current += bytesRead; } while(bytesRead > -1); bos.write(mybytearray, 0 , current); bos.flush(); long end = System.currentTimeMillis(); System.out.println(end-start); bos.close(); sock.close(); } } } </code>
Client Seite (Android):
<code> package com.arwa.file.send; import java.io.BufferedInputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.ObjectOutputStream; import java.io.OutputStream; import java.net.Socket; import java.net.UnknownHostException; import android.app.Activity; import android.content.Intent; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.ImageView; import android.widget.TextView; public class SendfileActivity extends Activity { /** Called when the activity is first created. */ private static final int SELECT_PICTURE = 1; private String selectedImagePath; private ImageView img; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); System.out.println("34"); img = (ImageView) findViewById(R.id.ivPic); System.out.println("36"); ((Button) findViewById(R.id.bBrowse)) .setOnClickListener(new OnClickListener() { public void onClick(View arg0) { System.out.println("40"); Intent intent = new Intent(); intent.setType("image/*"); intent.setAction(Intent.ACTION_GET_CONTENT); startActivityForResult( Intent.createChooser(intent, "Select Picture"), SELECT_PICTURE); System.out.println("47"); } }); ; System.out.println("51"); Button send = (Button) findViewById(R.id.bSend); final TextView status = (TextView) findViewById(R.id.tvStatus); send.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { Socket sock; try { sock = new Socket("MY_PCs_IP", 1149); System.out.println("Connecting..."); // sendfile File myFile = new File (selectedImagePath); byte [] mybytearray = new byte [(int)myFile.length()]; FileInputStream fis = new FileInputStream(myFile); BufferedInputStream bis = new BufferedInputStream(fis); bis.read(mybytearray,0,mybytearray.length); OutputStream os = sock.getOutputStream(); System.out.println("Sending..."); os.write(mybytearray,0,mybytearray.length); os.flush(); sock.close(); } catch (UnknownHostException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }); } public void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == RESULT_OK) { if (requestCode == SELECT_PICTURE) { Uri selectedImageUri = data.getData(); selectedImagePath = getPath(selectedImageUri); TextView path = (TextView) findViewById(R.id.tvPath); path.setText("Image Path : " + selectedImagePath); img.setImageURI(selectedImageUri); } } } public String getPath(Uri uri) { String[] projection = { MediaStore.Images.Media.DATA }; Cursor cursor = managedQuery(uri, projection, null, null, null); int column_index = cursor .getColumnIndexOrThrow(MediaStore.Images.Media.DATA); cursor.moveToFirst(); return cursor.getString(column_index); } } </code>
XML-Code:
<code> <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:id="@+id/tvStatus" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <TextView android:id="@+id/tvPath" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Path: " /> <Button android:id="@+id/bBrowse" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Browse" > </Button> <Button android:id="@+id/bSend" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Send" /> <ImageView android:id="@+id/ivPic" android:layout_width="wrap_content" android:layout_height="wrap_content" > </ImageView> </LinearLayout> </code>