两个Android手机之间的Android套接字文件传输

时间:2013-01-13 03:12:53

标签: android file-io

所以我试图创建一个将一个文件从一个Android手机转移到另一个Android手机的android程序。我点击了发送按钮时调用的send和receive方法,但它似乎并没有将文件发送到目的地。 (目前用一部手机测试) 以下是代码:任何帮助将不胜感激

 import java.io.BufferedInputStream;
    import java.io.BufferedOutputStream;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.ObjectOutputStream;
    import java.io.OutputStream;
    import java.net.ServerSocket;
    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;
    import java.io.DataOutputStream; 


    public class MainActivity 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.activity_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("10.0.0.16", 8080); //IP
                    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();

                        int filesize=65383; // filesize temporary hardcoded

                        long start = System.currentTimeMillis();
                        int bytesRead;
                        int current = 0;

                        // create socket
                        ServerSocket servsock = new ServerSocket(8080);
                        while (true) {
                          System.out.println("Waiting...");

                          Socket sock2 = servsock.accept();
                          System.out.println("Accepted connection : " + sock2);

                       // receive file
                            byte [] mybytearray2  = new byte [filesize];
                            InputStream is = sock2.getInputStream();
                            FileOutputStream fos = new FileOutputStream("/storage/sdcard0/Pictures/Screenshots/IMG-20130112-WA0011.jpeg"); // destination path and name of file
                            //FileOutputStream fos = new FileOutputStream("/storage/sdcard0/Pictures/Screenshots/");
                            BufferedOutputStream bos = new BufferedOutputStream(fos);
                            bytesRead = is.read(mybytearray2,0,mybytearray2.length);
                            current = bytesRead;


                            do {
                               bytesRead =
                                  is.read(mybytearray2, current, (mybytearray2.length-current));
                               if(bytesRead >= 0) current += bytesRead;
                            } while(bytesRead > -1);

                            bos.write(mybytearray2, 0 , current);
                            bos.flush();
                            long end = System.currentTimeMillis();
                            System.out.println(end-start);
                            bos.close();



                          sock2.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);
    }
    }


    <?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="Files Available on  Your Phone to Send" >
    </Button>

    <Button
        android:id="@+id/bSend"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Send Selected File" />

    <ImageView
        android:id="@+id/ivPic"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >
    </ImageView>

</LinearLayout>

权限:

 <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"> </uses-permission>

1 个答案:

答案 0 :(得分:0)

我认为您的应用会被阻止

sock = new Socket("10.0.0.16", 8080); //IP
System.out.println("Connecting...");

因为尚未设置服务器。我对吗?是否已打印“正在连接...”?