3

文字列形式でサーバーにデータを送信するアプリケーションを開発しています。以下は私のコードです。正常に動作しています。しかし、今私の質問は、.txtファイル全体と.docファイルをサーバーに送信するにはどうすればよいかということです。私のGUIでは、ユーザーが選択できるパスを指定する必要があります。ユーザーが送信したいファイルのパスを選択する必要があることを意味します...私の問題を解決するのを手伝ってください...ありがとう...

activity_main.xmlファイル

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <EditText
        android:id="@+id/editText1"
        android:layout_width="170sp"
        android:layout_height="40sp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="16dp"
        android:ems="10"
        android:hint="@string/ip" />

    <EditText
        android:id="@+id/editText2"
        android:layout_width="100sp"
        android:layout_height="40sp"
        android:layout_alignBaseline="@+id/editText1"
        android:layout_alignBottom="@+id/editText1"
        android:layout_marginLeft="24dp"
        android:layout_toRightOf="@+id/editText1"
        android:ems="10"
        android:hint="@string/port"
        android:inputType="number" >

        <requestFocus />
    </EditText>

    <EditText
        android:id="@+id/editText3"
        android:layout_width="300sp"
        android:layout_height="200sp"
        android:layout_below="@+id/editText1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="38dp"
        android:ems="10"
        android:hint="@string/msg" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="64dp"
        android:text="@string/send" />

</RelativeLayout>

.javaファイル

import java.io.IOException;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;

import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity {

    private Socket client;
    private PrintWriter printwriter;
    private EditText etMsg, etIP, etPort;
    private Button button;
    private String messsage;
    int port = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        etIP = (EditText) findViewById(R.id.editText1);
        etPort = (EditText) findViewById(R.id.editText2);
        etMsg = (EditText) findViewById(R.id.editText3);
        button = (Button) findViewById(R.id.button1);
        button.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub

                messsage = etMsg.getText().toString();
                etMsg.setText("");
                port = Integer.parseInt(etPort.getText().toString());

                new Thread(new Runnable() 
                {

                    @Override
                    public void run() {
                        // TODO Auto-generated method stub
                        try 
                        {
                            client = new Socket(etIP.getText().toString(), port);
                            printwriter = new PrintWriter(client.getOutputStream(),true);
                            printwriter.write(messsage);
                            printwriter.flush();
                            printwriter.close();
                            client.close();
                        }

                        catch (UnknownHostException e) {
                            e.printStackTrace();
                        } catch (IOException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }       
                    }
                }).start();


            }
        });
    }

}

<uses-permission android:name="android.permission.INTERNET" />
4

4 に答える 4

2 
HttpURLConnection connection = null;
DataOutputStream outputStream = null;
DataInputStream inputStream = null;
String pathToOurFile = "/data/file_to_send.mp3";
String urlServer = "http://192.168.1.1/handle_upload.php";
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary =  "*****";

int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1*1024*1024;

try
{
    FileInputStream fileInputStream = new FileInputStream(new File(pathToOurFile) );

    URL url = new URL(urlServer);
    connection = (HttpURLConnection) url.openConnection();

    // Allow Inputs &amp; Outputs.
    connection.setDoInput(true);
    connection.setDoOutput(true);
    connection.setUseCaches(false);

    // Set HTTP method to POST.
    connection.setRequestMethod("POST");

    connection.setRequestProperty("Connection", "Keep-Alive");
    connection.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);

    outputStream = new DataOutputStream( connection.getOutputStream() );
    outputStream.writeBytes(twoHyphens + boundary + lineEnd);
    outputStream.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\"" + pathToOurFile +"\"" + lineEnd);
    outputStream.writeBytes(lineEnd);

    bytesAvailable = fileInputStream.available();
    bufferSize = Math.min(bytesAvailable, maxBufferSize);
    buffer = new byte[bufferSize];

    // Read file
    bytesRead = fileInputStream.read(buffer, 0, bufferSize);

    while (bytesRead &gt; 0)
    {
        outputStream.write(buffer, 0, bufferSize);
        bytesAvailable = fileInputStream.available();
        bufferSize = Math.min(bytesAvailable, maxBufferSize);
        bytesRead = fileInputStream.read(buffer, 0, bufferSize);
    }

    outputStream.writeBytes(lineEnd);
    outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

    // Responses from the server (code and message)
    serverResponseCode = connection.getResponseCode();
    serverResponseMessage = connection.getResponseMessage();

    fileInputStream.close();
    outputStream.flush();
    outputStream.close();
}
catch (Exception ex)
{
    //Exception handling
}
于 2015-06-24T06:16:03.453 に答える
1

このコードは、データ (画像、mp3、テキスト ファイルなど) を HTTP サーバーにアップロードします。

HttpURLConnection connection = null;
DataOutputStream outputStream = null;
DataInputStream inputStream = null;

String pathToOurFile = "/data/file_to_send.mp3";
String urlServer = "http://192.168.1.1/handle_upload.php";
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary =  "*****";

int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1*1024*1024;

try
{
FileInputStream fileInputStream = new FileInputStream(new File(pathToOurFile) );

URL url = new URL(urlServer);
connection = (HttpURLConnection) url.openConnection();

// Allow Inputs & Outputs
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setUseCaches(false);

// Enable POST method
connection.setRequestMethod("POST");

connection.setRequestProperty("Connection", "Keep-Alive");
connection.setRequestProperty("Content-Type", "multipart/formdata;boundary="+boundary);

outputStream = new DataOutputStream( connection.getOutputStream() );
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
outputStream.writeBytes("Content-Disposition: form-data;
name=\"uploadedfile\";filename=\"" + pathToOurFile +"\"" + lineEnd);
outputStream.writeBytes(lineEnd);

bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];

// Read file
bytesRead = fileInputStream.read(buffer, 0, bufferSize);

while (bytesRead > 0)
{
outputStream.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}

outputStream.writeBytes(lineEnd);
outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

// Responses from the server (code and message)
serverResponseCode = connection.getResponseCode();
serverResponseMessage = connection.getResponseMessage();

fileInputStream.close();
outputStream.flush();
outputStream.close();
}
catch (Exception ex)
{
//Exception handling
  }
于 2013-01-16T05:43:52.063 に答える
1

このコードを試して、txtファイルを作成し、そのファイルに文字列を書き込み、サーバーに送信してください...

File f = new File(Environment.getExternalStorageDirectory(),"new");
        if(!f.exists())
        {
            f.mkdir();
        }
        File file = new File("new.txt");
        FileWriter w = new FileWriter("/sdcard/new/new.txt");
        BufferedWriter out = new BufferedWriter(w);
        out.write(data);
        out.flush();
        out.close();
                          String file_name = "/sdcard/new/new.txt";

        File file1 = new File(file_name);  
        socket = new Socket("117.218.28.70", 2020);

        ObjectInputStream ois = new ObjectInputStream(socket.getInputStream());  
        ObjectOutputStream oos = new ObjectOutputStream(socket.getOutputStream());  

        oos.writeObject(file1.getName());  

        FileInputStream fis = new FileInputStream(file1);  
        byte [] buffer = new byte[450000];  
        Integer bytesRead = 0;  

        while ((bytesRead = fis.read(buffer)) > 0) 
        {  
            oos.writeObject(bytesRead);  
            oos.writeObject(Arrays.copyOf(buffer, buffer.length));  
        }  
        oos.close();  
        ois.close();  
        System.exit(0);
于 2013-01-18T17:41:23.867 に答える