I am trying to show image on screen by using client server, but I got exception
Protocol not found: net.rim.device.cldc.io.ftp.Protocol" , java.lang.IllegalArgumentException.
Here I have post the code where I get the exception(Currently on app I successfully login with client server, show folders & directories, now I want to click on any file it open on new screen.)
package com.rim.samples.device.mapactiondemo;
import net.rim.device.api.system.Bitmap;
import net.rim.device.api.ui.component.BitmapField;
import net.rim.device.api.ui.container.MainScreen;
public class ShowData extends MainScreen {
String connParams;
public ShowData() {
// Check Type of connection
CheckConnection obj1 = new CheckConnection();
connParams = obj1.getConnParam();
Bitmap listThumb;
String path = "ftp://dice:pAssw0rd#64.207.149.236:21/images/facebook.png"
+ connParams + "";
listThumb = getImage.getImageFromUrl(path);
BitmapField bitmapField1 = new BitmapField(listThumb);
add(bitmapField1);
}
}
getImage.java
package com.rim.samples.device.mapactiondemo;
import javax.microedition.io.Connector;
import javax.microedition.io.SocketConnection;
import java.io.IOException;
import java.io.InputStream;
import java.lang.String;
import net.rim.device.api.system.Bitmap;
public final class getImage {
/**
* Fetches the content on the speicifed url. The url of the content to fetch
*/
public static Bitmap getImageFromUrl(String url) {
Bitmap bitmap = null;
try {
String bitmapData = getDataFromUrl(url);
bitmap = Bitmap.createBitmapFromBytes(bitmapData.getBytes(), 0,
bitmapData.length(), 1);
// Image.createImage(imageData.getBytes(), 0,imageData.length());
} catch (Exception e1) {
e1.printStackTrace();
System.out.println(e1);
}
return bitmap;
}
/**
* Fetches the content on the speicifed url. The url of the content to fetch
*/
private static String getDataFromUrl(String url) {
StringBuffer b = new StringBuffer();
InputStream is = null;
SocketConnection c = null;
long len = 0;
int ch = 0;
try {
c = (SocketConnection) Connector.open(url);
c.setSocketOption(SocketConnection.LINGER, 5);
c.setSocketOption(SocketConnection.DELAY, 5);
is = c.openInputStream();
//len = is.getLength();
if (len != -1) {
// Read exactly Content-Length bytes
for (int i = 0; i < len; i++)
if ((ch = is.read()) != -1) {
b.append((char) ch);
}
} else {
// Read until the connection is closed.
while ((ch = is.read()) != -1) {
len = is.available();
b.append((char) ch);
}
}
is.close();
c.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return b.toString();
}
}
As far as I know ftp protocol is not implemented in BlackBerry Java SDK. Use http protocol instead of ftp.
Related
I am trying to upload image from client (flutter) to server (Aqueduct.io) using MultipartRequest.
It's working, but currently file names are assigned the current time, how can I pass the filename from a client and parse it on a server side?
Client code:
final String imageName = nameController.text.replaceAll(" ", "");
var postUri = Uri.parse("http://***:8888/media");
var request = new http.MultipartRequest("POST", postUri);
request.files.add(new http.MultipartFile.fromBytes('file', image,
filename: imageName, contentType: MediaType('image', 'jpeg')));
request.send().then((response) {
if (response.statusCode == 200) print("Uploaded!");
});
}
Server code:
import 'dart:async';
import 'dart:io';
import 'package:aqueduct/aqueduct.dart';
import 'package:mime/mime.dart';
import 'package:http_server/http_server.dart';
class MediaController extends ResourceController {
MediaController() {
acceptedContentTypes = [ContentType("multipart", "form-data")];
}
#Operation.post()
Future<Response> postMultipartForm() async {
final transformer = MimeMultipartTransformer(
request.raw.headers.contentType.parameters["boundary"]);
final bodyStream =
Stream.fromIterable([await request.body.decode<List<int>>()]);
final parts = await transformer.bind(bodyStream).toList();
for (var part in parts) {
final HttpMultipartFormData multipart = HttpMultipartFormData.parse(part);
final content = multipart.cast<List<int>>();
final filePath =
"public/" + DateTime.now().millisecondsSinceEpoch.toString() + ".jpg"; // <---current filename implementation
final IOSink sink = File(filePath).openWrite();
await for (List<int> item in content) {
sink.add(item);
}
await sink.flush();
await sink.close();
}
return Response.ok({});
}
}
Okay, I have the asnwer
import 'dart:async';
import 'dart:io';
import 'package:aqueduct/aqueduct.dart';
import 'package:mime/mime.dart';
import 'package:http_server/http_server.dart';
class MediaController extends ResourceController {
MediaController() {
acceptedContentTypes = [ContentType("multipart", "form-data")];
}
#Operation.post()
Future<Response> postMultipartForm() async {
final transformer = MimeMultipartTransformer(
request.raw.headers.contentType.parameters["boundary"]);
final bodyStream =
Stream.fromIterable([await request.body.decode<List<int>>()]);
final parts = await transformer.bind(bodyStream).toList();
for (var part in parts) {
final HttpMultipartFormData multipart = HttpMultipartFormData.parse(part);
List<String> tokens = part.headers['content-disposition'].split(";");
String filename;
for (var i = 0; i < tokens.length; i++) {
if (tokens[i].contains('filename')) {
filename = tokens[i]
.substring(tokens[i].indexOf("=") + 2, tokens[i].length - 1);
}
}
print('file $filename.jpg uploaded');
final content = multipart.cast<List<int>>();
final filePath =
// "public/" + DateTime.now().millisecondsSinceEpoch.toString() + ".jpg";
'public/$filename.jpg';
final IOSink sink = File(filePath).openWrite();
await for (List<int> item in content) {
sink.add(item);
}
await sink.flush();
await sink.close();
}
return Response.ok({});
}
}
I want to get the Bitmap from URL like -
"https://graph.facebook.com/100003506521332/picture"
I tried how-i-can-display-images-from-url-in-blackberry . But its showing http error 302 .It dont showing the Bitmap. How to resolve the problem ?.
String url = "https://graph.facebook.com/100003506521332/picture";
try
{
bitmap = globleDeclaration.getLiveImage(url, 50, 50);
bitmapField.setBitmap(bitmap);
}
catch (IOException e)
{
e.printStackTrace();
Dialog.alert(e.getMessage());
}
public Bitmap getLiveImage(String url,int width,int height) throws IOException
{
Bitmap bitmap = null;
try
{
byte[] responseData = new byte[10000];
int length = 0;
StringBuffer rawResponse = new StringBuffer();
httpconnection = (HttpConnection) Connector.open(url, Connector.READ, true);
String location=httpconnection.getHeaderField("location");
if(location!=null){
httpconnection = (HttpConnection) Connector.open(location, Connector.READ, true);
}else{
httpconnection = (HttpConnection) Connector.open(url, Connector.READ, true);
}
inputStream = httpconnection.openInputStream();
while (-1 != (length = inputStream.read(responseData)))
{
rawResponse.append(new String(responseData, 0, length));
}
int responseCode = httpconnection.getResponseCode();
if (responseCode != HttpConnection.HTTP_OK)
{
throw new IOException("HTTP response code: "
+ responseCode);
}
final String result = rawResponse.toString();
byte[] dataArray = result.getBytes();
encodeImageBitmap = EncodedImage.createEncodedImage(dataArray, 0, dataArray.length);
}
catch (final Exception ex)
{
System.out.print("Exception (" + ex.getClass() + "): " + ex.getMessage());
}
finally
{
try
{
inputStream.close();
inputStream = null;
httpconnection.close();
httpconnection = null;
}
catch(Exception e){}
}
return bitmap;
}
If you done get responce from this code httpconnection = (HttpConnection) Connector.open(url, Connector.READ, true); which is mention in above answer than u can also use alternative solution for that..
You can pass your your id here http://graph.facebook.com/100003506521332/?fields=picture&type=large than you will get one json responce like that {"picture": "http://profile.ak.fbcdn.net/hprofile-ak-snc4/70678_100003506521332_1415569305_n.jpg"}
parse this json and get which you want exaclty .. than you will get responce using httpconnection = (HttpConnection) Connector.open(url, Connector.READ, true); also .
if you dont want larger image than remove &type=large from the above url.
//YOUR PACKAGE NAME
package ...........;
//*************************
import java.io.InputStream;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import net.rim.device.api.system.Bitmap;
public class Util_ImageLoader {
public static Bitmap getImageFromUrl(String url) {
Bitmap bitmap = null;
try {
String bitmapData = getDataFromUrl(url);
bitmap = Bitmap.createBitmapFromBytes(bitmapData.getBytes(), 0,
bitmapData.length(), 1);
} catch (Exception e1) {
e1.printStackTrace();
}
return bitmap;
}
private static String getDataFromUrl(String url) {
StringBuffer b = new StringBuffer();
InputStream is = null;
HttpConnection c = null;
long len = 0;
int ch = 0;
try {
c = (HttpConnection) Connector.open(url);
is = c.openInputStream();
len = c.getLength();
if (len != -1) {
for (int i = 0; i < len; i++)
if ((ch = is.read()) != -1) {
b.append((char) ch);
}
} else {
while ((ch = is.read()) != -1) {
len = is.available();
b.append((char) ch);
}
}
is.close();
c.close();
} catch (Exception e) {
e.printStackTrace();
}
return b.toString();
}
}
copy this to your package....
Now, to use this class do like this>>>>>>>>
CREATE BITMAP OBJECT:
Bitmap IMAGE;
After That:
IMAGE=Util_ImageLoader.getImageFromUrl("https://graph.facebook.com/100003506521332/picture");
By the way, I think you have missed extension
like JPG,PNG, on your URL.... Check That
Now, add your bitmap where you would like to display the image......
ENJOY!
add(IMAGE);
I am developing an application in BlackBerry 5.0 and want to display an image from a url. While reading the image from the url using the httpconnection I get the exception "local connection timed out after 120000 "
The exception occurs on the line "httpConnection.getResponseCode()".
My code is as follows :
private byte[] getimagefromurl(String PhotoUrl)
{
String url = "http://www.mywebsite.com/images/Folder/xyz.jpg";
try
{
httpConnection = (HttpConnection) Connector.open(url, Connector.READ_WRITE);
System.out.println("url>>>>>>>> "+url);
httpConnection.setRequestMethod(HttpConnection.GET);
System.out.println("Response>>>>>>>> "+String.valueOf(httpConnection.getResponseCode()));
if(httpConnection.getResponseCode() == HttpConnection.HTTP_OK)
{
InputStream input = httpConnection.openInputStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int j = 0;
while((j=input.read()) != -1)
{
baos.write(j);
}
byteArray = baos.toByteArray();
baos.close();
}
}
catch(Exception e)
{
System.out.println("in catch>>>>"+e.toString());
}
return byteArray;
}
append url extension like following example is work when you r working with WIFI
httpConnection = (HttpConnection) Connector.open(url+";interface=wifi", Connector.READ_WRITE);
extensions just check this url
connection extensions
Yes the answer is exactly that. The connection timed out. check that your webservice works. if you are testing from device or emulator ,make sure you can hit the URL from the default blackberry browser.
If you are testing in the emulator, make sure you have MDS-CS simulator started.
have a look at this bit of code which works
import java.io.InputStream;
import javax.microedition.io.Connector;
import javax.microedition.io.StreamConnection;
public class HTTPClient {
public static String getPage(String url) {
String response = "";
try {
StreamConnection s = (StreamConnection)Connector.open(url);
InputStream input = s.openInputStream();
byte[] data = new byte[256];
int len = 0;
StringBuffer raw = new StringBuffer();
while( -1 != (len = input.read(data))) {
raw.append(new String(data, 0, len));
}
response = raw.toString();
input.close();
s.close();
} catch(Exception e) { }
return response;
}
}
Im having difficulties with the HttpConnection posting data to my server. The first time everything goes well. The second time it says; 'Stream already open', but i close everything after the response.
Here is my code:
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import javax.microedition.location.*;
import java.io.*;
class GetSnowheights
{
HttpConnection http = null;
QualifiedCoordinates q = null;
public String result = "Geen data";
private boolean running;
public GetSnowheights(QualifiedCoordinates q) {
try
{
/*
this.http = (HttpConnection)Connector.open("http://www.diamond4it.nl/bb/");
this.http.setRequestMethod(HttpConnection.POST);
this.http.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
*/
//Internet.getInstance();
this.http = Internet.getConnection();
}catch(Exception err){
err.printStackTrace();
}
this.q = q;
this.result = "Running";
}
public void GetResult(){
StringBuffer sb = new StringBuffer();
this.result = "GetResult";
if(this.http != null){
OutputStream os = null;
InputStream is = null;
try
{
//Send request
os = this.http.openOutputStream();
String data = "lat=1&lng=1";
//String data = "lat=" + this.q.getLatitude() + "&lng=" + this.q.getLongitude();
os.write(data.getBytes());
os.flush();
os.close();
this.result = "dataSend";
//Check response and read data
int res = this.http.getResponseCode();
this.result = "Result: " + res;
if(res == 200){
is = this.http.openInputStream();
int ch;
// Check the Content-Length first
long len = this.http.getLength();
if(len!=-1) {
for(int i = 0;i<len;i++){
if((ch = is.read())!= -1){
sb.append((char)ch);
}
}
} else {
// if the content-length is not available
while ((ch = is.read()) != -1){
sb.append((char)ch);
}
}
is.close();
}
this.result = sb.toString();
}catch(Exception err){
//err.printStackTrace();
this.result = err.toString() + "\r\n" + err.getMessage();
}finally{
if(is != null){
try{
is.close();
}catch(Exception err){
err.printStackTrace();
}
}
if(os != null){
try{
//os.flush();
os.close();
}catch(Exception err){
err.printStackTrace();
}
}
/*
if(http != null){
try{
http.close();
}catch(Exception err){
err.printStackTrace();
}
}
*/
}
}else{
this.result = "No connection";
}
}
}
2 ideas:
Why have you commented out the http.close() in finally block? We should always close HttpConnections.
Don't you call GetResult() from several threads simultaneously? If yes, then make the method synchronized by adding synchronized keyword in its definition.
P.S. I find the design of the class a bit misleading. It's very easy to make a mistake by incorrect usage of it. I'd combine GetSnowheights and GetResult into the only synchronized method.
I tired to connect my app with the remote server and pass few credentials to it, but i am always getting a same response from the server. I tried changing all the parameter value and other request header values that i am passing, but still i can't reach the exact solution. I need to you, whether am i using the correct way to ping with the server and to pass the values.
Below is the code that i am using , Please let me know if i have gone wrong somewhere.
// HttpServiceConnection.java
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
import javax.microedition.io.HttpsConnection;
import net.rim.device.api.system.DeviceInfo;
import com.beacon.bb.app.util.WSMConfig;
/**
* #author N********
*
*/
public class HttpServiceCommunication {
public HttpServiceCommunication() {
System.out.println("Http Service Communication Called");
}
public String sendHttpPost(String uri, String email, String uid,
String pass) throws Exception { // Hashtable header
String response = null;
// create the connection...
System.out.println("Url " + uri);
HttpConnection _connection = null;
String params = null;
if (DeviceInfo.isSimulator()) {
params = ";deviceside=false";
} else {
params = ";deviceside=true;interface=wifi";
}
String URL = uri + params;
System.out.println("Connecting to Http Connection ");
try {
_connection = (HttpConnection) Connector.open(URL);
} catch(Exception e){
e.printStackTrace();
}
if (_connection != null) {
_connection.setRequestMethod(HttpConnection.POST);
System.out.println("After Request Method ");
_connection.setRequestProperty("User-Agent",
"Profile/MIDP-2.0 Configuration/CLDC-1.1");
_connection.setRequestProperty("Content-Language", "en-US");
_connection.setRequestProperty("Content-type", "application/json");
// setting header if any
// if (header != null) {
// for (Enumeration en = header.keys(); en.hasMoreElements();) {
// String key = (String) en.nextElement();
// String value = (String) header.get(key);
// _connection.setRequestProperty(key, value);
_connection.setRequestProperty("email", email);
//_connection.setRequestProperty("method","login");
_connection.setRequestProperty("uid", uid);
_connection.setRequestProperty("password", pass);
//_connection.setRequestProperty("uid", uid);
// }
// }
System.out.println("Open Output Stream ");
// System.out.println("Data is "+data);
OutputStream _outputStream = _connection.openOutputStream();
//System.out.println("Writing data ");
//_outputStream.write(data);
// _outputStream.flush(); // Optional, getResponseCode will flush
// Getting the response code will open the connection, send the
// request, and read the HTTP response headers.
// The headers are stored until requested.
try {
System.out.println("Response Code :" + _connection.getResponseCode());
int rc = _connection.getResponseCode();
System.out.println("Response Code :" + rc);
System.out.println("Response Code :" + rc + " if HTTP OK :"
+ (rc == HttpConnection.HTTP_OK));
if (rc == HttpConnection.HTTP_FORBIDDEN) {
System.out.println("FORBIDDEN");
response = WSMConfig.NOT_AUTH;
} else if (rc != HttpConnection.HTTP_OK) {
response = WSMConfig.NOT_OK;
} else if (rc == HttpConnection.HTTP_OK) {
InputStream _inputStream = _connection.openInputStream();
final int MAX_LENGTH = 128;
byte[] buf = new byte[MAX_LENGTH];
int total = 0;
while (total < MAX_LENGTH) {
int count = _inputStream.read(buf, total, MAX_LENGTH
- total);
if (count < 0) {
break;
}
total += count;
}
response = new String(buf, 0, total);
//ByteBuffer bb = new ByteBuffer(_inputStream);
//response = bb.getString();
System.out.println("Response from Server :" + response);
// close everything out
{
if (_inputStream != null)
try {
_inputStream.close();
} catch (Exception e) {
}
if (_outputStream != null)
try {
_outputStream.close();
} catch (Exception e) {
}
if (_connection != null)
try {
_connection.close();
} catch (Exception e) {
}
}
}
else {
response = WSMConfig.SERVER_ERROR;
}
}catch(Exception e){
e.printStackTrace();
}
}
//System.out.println("Response :" + response);
return response;
}
}
I am getting a response like {"code":0,"err":"Missing 'method'."}
Any Help is Appreciable....
Thanks
Try this out when you're wanting to pass data to the server:
//encode your data to send
URLEncodedPostData encoder = new URLEncodedPostData(null, false);
encoder.encode("email", email);
encoder.encode("method", "login");
encoder.encode("uid", uid);
encoder.encode("password", pass);
//Now you open up an output stream to write to the connection
OutputStream os = _connection.openOutputStream();
os.write(encoder.getBytes();
os.flush();
And then continue with the rest of your logic