我想将图像从 android 设备上传到服务器 php，但我的应用程序出错。你能帮我修一下吗？谢谢！源代码
public class MainActivity extends Activity implements OnClickListener {
private ImageView image;
private Button btnselect;
private Button btnupload;
private Bitmap bmp;
private HttpResponse response;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
image = (ImageView) findViewById(R.id.image);
btnselect = (Button) findViewById(R.id.btnselect);
btnupload = (Button) findViewById(R.id.btnupload);
btnselect.setOnClickListener(this);
btnupload.setOnClickListener(this);
Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(),
R.drawable.electricinvoicesign);
image.setImageBitmap(bitmapOrg);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.btnselect:
Intent choosePictureIntent = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(choosePictureIntent, 0);
break;
case R.id.btnupload:
new upload().execute();
break;
default:
break;
}
}
public void hienthi()
{
Toast.makeText(this, "Upload thanh cong!", Toast.LENGTH_LONG).show();
}
private class upload extends AsyncTask<Void, Void, Void>
{
private ProgressDialog progressDialog;
private BufferedReader in;
@Override
protected void onPostExecute(final Void unused) {
try
{
this.progressDialog.dismiss();
System.out.print("Upload thanh cong!");
hienthi();
in = new BufferedReader(new InputStreamReader(response
.getEntity().getContent()));
StringBuffer sb = new StringBuffer("");
String line = "";
String NL = System.getProperty("line.separator");
while ((line = in.readLine()) != null) {
sb.append(line + NL);
}
in.close();
String result = sb.toString();
System.out.println(result);
}catch(Exception e)
{
e.printStackTrace();
}
}
@Override
protected void onPreExecute() {
this.progressDialog = ProgressDialog.show(
MainActivity.this, "", " Loading...");
}
@Override
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
try {
Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(),
R.drawable.electricinvoicesign);
ByteArrayOutputStream bao = new ByteArrayOutputStream();
bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 90, bao);
byte[] ba = bao.toByteArray();
String ba1 = Base64.encodeBytes(ba);
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("image", ba1));
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(
"http://longvansolution.tk/uploadimage.php");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
response=httpclient.execute(httppost);
System.out.print("Upload thanh cong 2!");
} catch (Exception e) {
Log.e("log_tag", "Error in http connection " + e.toString());
}
return null;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
Uri imageFileUri = data.getData();
try {
BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options();
bmpFactoryOptions.inJustDecodeBounds = true;
bmp = BitmapFactory
.decodeStream(
getContentResolver().openInputStream(
imageFileUri), null, bmpFactoryOptions);
bmpFactoryOptions.inJustDecodeBounds = false;
bmp = BitmapFactory
.decodeStream(
getContentResolver().openInputStream(
imageFileUri), null, bmpFactoryOptions);
image.setImageBitmap(bmp);
} catch (Exception e) {
Log.v("ERROR", e.toString());
}
}
}
}
这是错误：
11-15 13:59:04.642: W/System.err(17525): android.os.NetworkOnMainThreadException 11-15 13:59:04.642: W/System.err(17525): 在 android.os.StrictMode$AndroidBlockGuardPolicy。 onNetwork(StrictMode.java:1099) 11-15 13:59:04.642: W/System.err(17525): 在 libcore.io.BlockGuardOs.recvfrom(BlockGuardOs.java:163) 11-15 13:59:04.642: W/System.err(17525): 在 libcore.io.IoBridge.recvfrom(IoBridge.java:503) 11-15 13:59:04.642: W/System.err(17525): 在 java.net.PlainSocketImpl.read (PlainSocketImpl.java:488) 11-15 13:59:04.642: W/System.err(17525): 在 java.net.PlainSocketImpl.access$000(PlainSocketImpl.java:46) 11-15 13:59:04.642: W/System.err(17525): 在 java.net.PlainSocketImpl$PlainSocketInputStream.read(PlainSocketImpl.java:240) 11-15 13:59:04.642: W/System.err(17525): 在 org.apache.http .impl.io.AbstractSessionInputBuffer。fillBuffer(AbstractSessionInputBuffer.java:103) 11-15 13:59:04.642: W/System.err(17525): 在 org.apache.http.impl.io.AbstractSessionInputBuffer.read(AbstractSessionInputBuffer.java:134) 11-15 13:59:04.642: W/System.err(17525): 在 org.apache.http.impl.io.ChunkedInputStream.read(ChunkedInputStream.java:161) 11-15 13:59:04.642: W/System.err (17525): 在 org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:159) 11-15 13:59:04.642: W/System.err(17525): 在 java.io.InputStreamReader.read( InputStreamReader.java:244) 11-15 13:59:04.642: W/System.err(17525): 在 java.io.BufferedReader.fillBuf(BufferedReader.java:130) 11-15 13:59:04.642: W/ System.err(17525): at java.io.BufferedReader.readLine(BufferedReader.java:390) 11-15 13:59:04.642: W/System.err(17525): at com.example.uploadimage.MainActivity$upload .onPostExecute(MainActivity.java:99) 11-15 13:59:04.642: W/System.err(17525): 在 com.example.uploadimage.MainActivity$upload.onPostExecute(MainActivity.java:1) 11-15 13: 59:04.642: W/System.err(17525): 在 android.os.AsyncTask.finish(AsyncTask.java:602) 11-15 13:59:04.642: W/System.err(17525): 在 android.os .AsyncTask.access$600(AsyncTask.java:156) 11-15 13:59:04.642: W/System.err(17525): 在 android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:615) 11-15 13:59:04.642: W/System.err(17525): 在 android.os.Handler.dispatchMessage(Handler.java:99) 11-15 13:59:04.642: W/System.err(17525): 在 android .os.Looper.loop(Looper.java:137) 11-15 13:59:04.642: W/System.err(17525): 在 android.app.ActivityThread.main(ActivityThread.java:4514) 11-15 13 ：59：04.642：W / System.err（17525）：在java.lang.reflect.Method。invokeNative（本机方法）11-15 13:59:04.650：W/System.err（17525）：在 java.lang.reflect.Method.invoke（Method.java:511）11-15 13:59:04.650：W /System.err(17525): 在 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790) 11-15 13:59:04.650: W/System.err(17525): 在 com. android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 11-15 13:59:04.650: W/System.err(17525): at dalvik.system.NativeStart.main(Native Method)主要（本机方法）主要（本机方法）