Android开发之将拍摄的图片传至服务器

package com.example.oldtab;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;

public class Group extends ActionBarActivity {
    private static final int TAKE_PICTURE = 0x0;

    private static final String TAG_SEP = "----ninesofttestpostfile";

    private ImageView imageview;
    private Button button;
    private Uri outputFileUri;
    private Bitmap bitmap;
    private File file;

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

        imageview = (ImageView) findViewById(R.id.imageView1);
        button = (Button) findViewById(R.id.button1);

        button.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                File file = new File(Environment.getExternalStorageDirectory(),
                        "test.jpg");
                outputFileUri = Uri.fromFile(file);

                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);

                startActivityForResult(intent, TAKE_PICTURE);
            }

        });

    }

    @Override
    protected void onDestroy() {
        if (bitmap != null && !bitmap.isRecycled()) {
            bitmap.recycle();
        }
        super.onDestroy();
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == TAKE_PICTURE) {
            if (data == null) {
                if (bitmap != null) {
                    if (!bitmap.isRecycled()) {
                        bitmap.recycle();
                    }
                }
                int width = 1024;
                int height = 768;

                file = new File(Environment.getExternalStorageDirectory(),
                        "test.jpg");

                outputFileUri = Uri.fromFile(file);

                BitmapFactory.Options factoryoption = new BitmapFactory.Options();
                factoryoption.inJustDecodeBounds = true;

                BitmapFactory
                        .decodeFile(outputFileUri.getPath(), factoryoption);

                int outwidth = factoryoption.outWidth;
                int outheight = factoryoption.outHeight;

                int scale = Math.min(outwidth / width, outheight / height);

                factoryoption.inJustDecodeBounds = false;
                factoryoption.inSampleSize = scale;
                factoryoption.inPurgeable = true;

                bitmap = BitmapFactory.decodeFile(outputFileUri.getPath(),
                        factoryoption);
                imageview.setImageBitmap(bitmap);

                saveToService();
            }
        }
        super.onActivityResult(requestCode, resultCode, data);
    }

    private void saveToService() {
        new Thread(new Runnable() {

            @Override
            public void run() {
                try {
                    URL url = new URL("http://172.16.101.79/PostFile.ashx");
                    HttpURLConnection conn = (HttpURLConnection) url
                            .openConnection();
                    conn.setRequestMethod("POST");
                    conn.setRequestProperty("Connection", "keep-alive");
                    conn.setRequestProperty("Accept", "*/*");
                    conn.setRequestProperty("Content-Type",
                            "multipart/form-data;boundary=" + TAG_SEP);
                    conn.setDoOutput(true);
                    OutputStream out = conn.getOutputStream();
                    out.write(("--" + TAG_SEP + "
").getBytes());
                    out.write(("Content-Disposition: form-data; name="postfile"; filename="test.jpg"
")
                            .getBytes());
                    out.write(("Content-Type:image/jpeg

").getBytes());
                    ByteArrayOutputStream fr = new ByteArrayOutputStream();
                    bitmap.compress(Bitmap.CompressFormat.JPEG, 50, fr);
                    out.write(fr.toByteArray());
                    out.write(("

--" + TAG_SEP + "--
").getBytes());
                    out.flush();
                    out.close();
                    conn.getResponseCode();
                    fr.close();

                } catch (MalformedURLException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

        }).start();

    }
}

<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=".Group" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="500dp"
        android:layout_height="300dp" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/imageView1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:text="Button" />

</RelativeLayout>