我尝试了什么::
的 MainActivity.java 的
public class MainActivity extends Activity {
Button submit;
ProgressDialog pDialog;
ImageView imageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
submit = (Button) findViewById(R.id.SUBMIT_BUTTON_ID);
imageView = (ImageView) findViewById(R.id.imageView1);
submit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
new MainTest().execute();
}
});
}
/**
* Method to post the image to the server.
* U will have to change the url which will accept the image data.
*/
private void postImageData(){
//Some random id. u can change this based on requirements
String newurl = "?" + "key=" + new Random().nextLong();
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://54.218.73.244:7002/Details/"+newurl);
//Convert the bitmap drawble to a bitmap and get the string after that to send to the server
Bitmap bitmap = ((BitmapDrawable)imageView.getDrawable()).getBitmap();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] bitmapdata = stream.toByteArray();
String image_str = Base64.encodeToString(bitmapdata, Base64.DEFAULT);
try {
// Add your data
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("imageData", image_str));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
HttpResponse response = httpclient.execute(httppost);
Log.v("Response", response.toString());
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
} catch (IOException e) {
// TODO Auto-generated catch block
}
}
public class MainTest extends AsyncTask<String, Integer, String> {
@Override
protected void onPreExecute() {
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Loading..");
pDialog.setIndeterminate(true);
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected String doInBackground(String... params) {
postImageData();
return null;
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
// data=jobj.toString();
pDialog.dismiss();
}
}
}
我该如何解决？？
我检查服务器是否正常运行以接受图像，但它看起来运行得很好！当使用postman-tool检查上传图片时，问题必须是客户端部分
MainActivity.java
public class MainActivity extends Activity {
Button submit;
ProgressDialog pDialog;
ImageView imageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
submit = (Button) findViewById(R.id.SUBMIT_BUTTON_ID);
imageView = (ImageView) findViewById(R.id.imageView1);
submit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
new MainTest().execute();
}
});
}
/**
* Method to post the image to the server.
* U will have to change the url which will accept the image data.
* @throws IOException
*/
public void postImageData() throws IOException
{
//Some random id. u can change this based on requirements
String newurl = "?" + "key=" + new Random().nextLong();
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://54.218.73.244:7002/Details/"+newurl);
//Convert the bitmap drawble to a bitmap and get the string after that to send to the server
Bitmap bitmap = ((BitmapDrawable)imageView.getDrawable()).getBitmap();
String dir = Environment.getExternalStorageDirectory().toString();
OutputStream fos = null;
File file = new File(dir,"temp.JPEG");
fos = new FileOutputStream(file);
BufferedOutputStream bos = new BufferedOutputStream(fos);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bos);
bos.flush();
bos.close();
MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
File mFile = new File(dir, "temp.JPEG");
FileBody encFile = new FileBody(mFile,"image/jpeg");
entity.addPart("images", encFile);
//Another key/value parameter
//entity.addPart("UserId", new StringBody(userId));
httppost.setEntity(entity);
HttpClient client = new DefaultHttpClient();
HttpResponse response = httpclient.execute(httppost);
String data = EntityUtils.toString(response.getEntity());
System.out.println("response data:"+data);
}
public class MainTest extends AsyncTask<String, Integer, String> {
@Override
protected void onPreExecute() {
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Loading..");
pDialog.setIndeterminate(true);
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected String doInBackground(String... params) {
try {
postImageData();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
// data=jobj.toString();
pDialog.dismiss();
}
}
}
答案 0 :(得分：2)
您必须使用MultipartEntity将图像上传到服务器
public void postImageData()
{
//Some random id. u can change this based on requirements
String newurl = "?" + "key=" + new Random().nextLong();
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://54.218.73.244:7002/Details/"+newurl);
//Convert the bitmap drawble to a bitmap and get the string after that to send to the server
Bitmap bitmap = ((BitmapDrawable)imageView.getDrawable()).getBitmap();
String dir = Environment.getExternalStorageDirectory().toString();
OutputStream fos = null;
File file = new File(dir,"temp.JPEG");
fos = new FileOutputStream(file);
BufferedOutputStream bos = new BufferedOutputStream(fos);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bos);
bos.flush();
bos.close();
MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
File mFile = new File(dir, "temp.JPEG");
FileBody encFile = new FileBody(mFile,"image/jpeg");
entity.addPart("images", encFile);
//Another key/value parameter
//entity.addPart("UserId", new StringBody(userId));
httppost.setEntity(entity);
HttpClient client = new DefaultHttpClient();
HttpResponse response = httpclient.execute(httppost);
String data = EntityUtils.toString(response.getEntity());
System.out.println("response data:"+data);
}
答案 1 :(得分：0)
你可以尝试一下。
public class MainActivity extends Activity {
Bitmap bm;
String url_path = "http://yoururl.php?";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
try {
bm = BitmapFactory.decodeResource(getResources(), R.drawable.annag);
// bm = BitmapFactory.decodeFile("/sdcard/DCIM/forest.png");
executeMultipartPost();
} catch (Exception e) {
Log.e(e.getClass().getName(), e.getMessage());
}
}
public void executeMultipartPost() throws Exception {
try {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bm.compress(CompressFormat.JPEG, 75, bos);
byte[] data = bos.toByteArray();
HttpClient httpClient = new DefaultHttpClient();
HttpPost postRequest = new HttpPost(url_path);
ByteArrayBody bab = new ByteArrayBody(data, "forest.jpg");
MultipartEntity reqEntity = new MultipartEntity(
HttpMultipartMode.BROWSER_COMPATIBLE);
reqEntity.addPart("store_name", new StringBody("amazon"));
reqEntity.addPart("file", bab);
postRequest.setEntity(reqEntity);
HttpResponse response = httpClient.execute(postRequest);
String my_response = convertStreamToString(response.getEntity()
.getContent());
Toast.makeText(getApplicationContext(), my_response,
Toast.LENGTH_LONG).show();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}