I'm trying to deserialize the JSON results from a web request.
Here is my code.
void myButton_Click(object sender, RoutedEventArgs e)
{
try
{
WebClient webClient = new WebClient();
Uri uri = new Uri("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StateCityHighway_USA/MapServer/1/query?text=&geometry=&geometryType=esriGeometryPoint&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&objectIds=&where=POP1999%3E15000000&time=&returnCountOnly=true&returnIdsOnly=false&returnGeometry=false&maxAllowableOffset=&outSR=&outFields=STATE_NAME%2CMALES%2CFEMALES%2CPOP1999&f=json");
webClient.OpenReadCompleted += new OpenReadCompletedEventHandler(webClient_OpenReadCompleted);
webClient.OpenReadAsync(uri);
//RESULT {"count":4}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
void webClient_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
{
DataContractJsonSerializer ser = null;
try
{
//countertext.Text = DESERIALIZE COUNT HERE
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public class Counter
{
public int count { get; set; }
}
}
It seems like it should be pretty simple, but I cannot figure it out.
I want to use this code during a background agent and I can't use the ArcGIS runtime for windows Phone API during an Background agent because it is a third party API.
It should deserialize without a problem:
var ser = new DataContractJsonSerializer(typeof(Counter));
Counter r = (Counter) ser.ReadObject(e.Result);
System.Diagnostics.Debug.WriteLine(r.count); // 4
Related
Can anyone can show me, with sample codes:
How to post JSON to a REST webservice; and
How to read the JSON response from the server;
Using Codename One?
Here is what i have tried which is returning bad request response from the server:
Button b1 = new Button("Add Staff");
b1.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent evt) {
JSONObject json = new JSONObject();
try {
ConnectionRequest post = new ConnectionRequest(){
#Override
protected void postResponse() {
try {
json.put("firstname", fname.getText());
json.put("middlename", mname.getText());
json.put("lastname", lname.getText());
json.put("dob", dob.getText());
json.put("gender", gender.getSelectedItem().toString());
json.put("marital", marital.getSelectedItem().toString());
json.put("phone", phone.getText());
json.put("adds", adds.getText());
json.put("username", user.getText());
json.put("password", pass.getText());
json.put("lat", lat.getText());
json.put("long", lon.getText());
} catch (JSONException ex) {
ex.printStackTrace();
}
}
#Override
protected void readResponse(InputStream input) throws IOException {
}
};
post.setUrl("http://localhost:8093/halimatbank/cbs/staff");
post.setPost(true);
post.setContentType("APPLICATION/JSON");
post.addArgument("body", json.toString());
boolean show = Dialog.show("Add Staff", "Are you Sure you want to add this Staff", "Yes", "NO");
NetworkManager.getInstance().addToQueueAndWait(post);
Map<String,Object> result = new JSONParser().parseJSON(new InputStreamReader(new ByteArrayInputStream(post.getResponseData()), "UTF-8"));
Map<String, Object> response = (Map<String, Object>)result.get("response");
Dialog.show("Staff Saved", ""+response, "OK","");
} catch (Exception ex) {
ex.printStackTrace();
}
}
});
postResponse() is invoked after the process completes. Not related to post itself. You want to override buildRequestBody which executes before. If I understand correctly you want the entire body to be the JSON and not an argument named "body" which is what you did...:
ConnectionRequest post = new ConnectionRequest(){
#Override
protected void buildRequestBody(OutputStream os) throws IOException {
os.write(json.toString().getBytes("UTF-8"));
}
#Override
protected void readResponse(InputStream input) throws IOException {
// parse response data
}
};
post.setUrl("http://localhost:8093/halimatbank/cbs/staff");
post.setPost(true);
post.setContentType("application/json");
I want to implement the "toast" notification inside my windows phone application. I'm implementing push message's, but I want them to show always. No matter if the application is running or not. The push notification will handle it when the application is closed, but not when it is running. Also if I create a shelltoast manually it won't show. To make it more difficult I can't use any external dll's. I only want to use code. What would be the best way to do this? I already know about the ToastNotificationRecieved event. I want to know how to implement it so that it will show a "toast" like message without using a framework
My code is below
PushPlugin.cs(c# code)
public void showToastNotification(string options)
{
ShellToast toast;
if (!TryDeserializeOptions(options, out toast))
{
this.DispatchCommandResult(new PluginResult(PluginResult.Status.JSON_EXCEPTION));
return;
}
Deployment.Current.Dispatcher.BeginInvoke(toast.Show);
}
public void PushChannel_ShellToastNotificationReceived(object sender, NotificationEventArgs e)
{
var toast = new PushNotification
{
Type = "toast"
};
foreach (var item in e.Collection)
{
toast.JsonContent.Add(item.Key, item.Value);
}
this.ExecuteCallback(this.pushOptions.NotificationCallback, JsonConvert.SerializeObject(toast));
}
In javascript
function onNotificationWP8(data) {
var pushNotification;
pushNotification = window.plugins.pushNotification;
pushNotification.showToastNotification(successHandler, errorHandler,
{
"Title": data.jsonContent["wp:Text1"], "Content": data.jsonContent["wp:Text2"], "NavigationUri": data.jsonContent["wp:Param"]
});
}
On devices without Windows Phone 8 Update 3, toast notifications are not displayed when the target app is running in the foreground. On devices with Windows Phone 8 Update 3, toast notifications are displayed when the target app is running in the foreground, but is obscured by other activity such as a phone call or the lock screen.
The following C# code example shows the properties used to create a toast notification using local code.
// Create a toast notification.
// The toast notification will not be shown if the foreground app is running.
ShellToast toast = new ShellToast();
toast.Title = "[title]";
toast.Content = "[content]";
toast.Show();
This thread has it all you looking for
public static class Notification
{
public static string ChannelURI = string.Empty;
public static void MainNotificationCallFunction()
{
try
{
NotificationMessage("Test Notification");
}
catch (Exception e)
{ }
}
public static void NotificationMessage(string Message)
{
try
{
ToastTemplateType toastType = ToastTemplateType.ToastText02;
XmlDocument toastXmlJob = ToastNotificationManager.GetTemplateContent(toastType);
XmlNodeList toastTextElementJob = toastXmlJob.GetElementsByTagName("text");
toastTextElementJob[0].AppendChild(toastXmlJob.CreateTextNode(Message));
IXmlNode toastNodeJob = toastXmlJob.SelectSingleNode("/toast");
((XmlElement)toastNodeJob).SetAttribute("duration", "long");
ToastNotification toastJob = new ToastNotification(toastXmlJob);
ToastNotificationManager.CreateToastNotifier().Show(toastJob);
}
catch (Exception e)
{ }
}
public static void PushNotification()
{
try
{
/// Holds the push channel that is created or found.
HttpNotificationChannel pushChannel;
string channelName = "Usman's Channel";
// Try to find the push channel.
pushChannel = HttpNotificationChannel.Find(channelName);
// If the channel was not found, then create a new connection to the push service.
if (pushChannel == null)
{
pushChannel = new HttpNotificationChannel(channelName);
//// Register for all the events before attempting to open the channel.
pushChannel.ChannelUriUpdated += new EventHandler<NotificationChannelUriEventArgs>(PushChannel_ChannelUriUpdated);
pushChannel.ErrorOccurred += new EventHandler<NotificationChannelErrorEventArgs>(PushChannel_ErrorOccurred);
pushChannel.HttpNotificationReceived += new EventHandler<HttpNotificationEventArgs>(PushChannel_HttpNotificationReceived);
pushChannel.Open();
pushChannel.BindToShellTile();
pushChannel.BindToShellToast();
}
else
{
//// The channel was already open, so just register for all the events.
pushChannel.ChannelUriUpdated += new EventHandler<NotificationChannelUriEventArgs>(PushChannel_ChannelUriUpdated);
pushChannel.ErrorOccurred += new EventHandler<NotificationChannelErrorEventArgs>(PushChannel_ErrorOccurred);
pushChannel.HttpNotificationReceived += new EventHandler<HttpNotificationEventArgs>(PushChannel_HttpNotificationReceived);
}
}
catch (Exception ex)
{ }
}
private static void PushChannel_ChannelUriUpdated(object sender, NotificationChannelUriEventArgs e)
{
try
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
// Display the new URI for testing purposes. Normally, the URI would be passed back to your web service at this point.
System.Diagnostics.Debug.WriteLine(e.ChannelUri.ToString());
MessageBox.Show(String.Format("Channel Uri is {0}", e.ChannelUri.ToString()));
});
}
catch (Exception ex)
{ }
}
private static void PushChannel_ErrorOccurred(object sender, NotificationChannelErrorEventArgs e)
{
try
{
// Error handling logic for your particular application would be here.
Deployment.Current.Dispatcher.BeginInvoke(() =>
MessageBox.Show(String.Format("A push notification {0} error occurred. {1} ({2}) {3}", e.ErrorType, e.Message, e.ErrorCode, e.ErrorAdditionalData)));
}
catch (Exception ex)
{ }
}
private static void PushChannel_HttpNotificationReceived(object sender, HttpNotificationEventArgs e)
{
try
{
string message;
using (System.IO.StreamReader reader = new System.IO.StreamReader(e.Notification.Body))
{
message = reader.ReadToEnd();
}
Deployment.Current.Dispatcher.BeginInvoke(() => MessageBox.Show(String.Format("Received Notification {0}:\n{1}", DateTime.Now.ToShortTimeString(), message)));
}
catch (Exception ex)
{ }
}
private static void channel_ErrorOccurred(object sender, NotificationChannelErrorEventArgs e)
{
try
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
MessageBox.Show(e.Message, "Error", MessageBoxButton.OK);
});
}
catch (Exception ex)
{ }
}
private static void channel_ChannelUriUpdated(object sender, NotificationChannelUriEventArgs e)
{
try
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
//ProgressBarPushNotifications.Visibility = System.Windows.Visibility.Collapsed;
MessageBox.Show(e.ChannelUri.ToString(), "Uri Recieved", MessageBoxButton.OK);
});
}
catch (Exception ex)
{ }
}
private static void channel_ShellToastNotificationReceived(object sender, HttpNotificationEventArgs e)
{
try
{
StringBuilder message = new StringBuilder();
string relativeUri = string.Empty;
message.AppendFormat("Received Toast {0}:\n", DateTime.Now.ToShortTimeString());
using (System.IO.StreamReader reader = new System.IO.StreamReader(e.Notification.Body))
{
message.AppendFormat(reader.ReadToEnd());
}
// Display a dialog of all the fields in the toast.
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
MessageBox.Show(message.ToString());
});
}
catch (Exception ex)
{ }
}
}
Hello everyone I'm getting this error:
Uncaught exception: java.lang.IllegalArgumentException: Port Number formatted badly
- com.sun.midp.io.j2me.sms.Protocol.openPrimInternal(), bci=209
- com.sun.midp.io.j2me.sms.Protocol.openPrim(), bci=4
- javax.microedition.io.Connector.open(), bci=47
- javax.microedition.io.Connector.open(), bci=3
- javax.microedition.io.Connector.open(), bci=2
- travel.entities.SendMessage$1.run(SendMessage.java:31)
- java.lang.Thread.run(), bci=5
when converting those two textfields to send them
public TextField tfDestination = new TextField("Destination","", 20, TextField.PHONENUMBER);
public TextField tfPort = new TextField("Port", "50001", 6, TextField.NUMERIC);
using this method:
public static void execute(final String destination, final String port, final String message) {
Thread th = new Thread(new Runnable() {
public void run() {
MessageConnection msgConnection;
try {
msgConnection = (MessageConnection) Connector.open("sms://:"+port+":"+destination);
TextMessage textMessage = (TextMessage)msgConnection.newMessage(MessageConnection.TEXT_MESSAGE);
textMessage.setPayloadText(message);
msgConnection.send(textMessage);
msgConnection.close();
} catch (IOException e) {
e.printStackTrace();
}
}
});
th.start();
}
I'm getting the error on this line:
msgConnection = (MessageConnection)Connector.open("sms://:"+destination+":"+port);
Anyone have an idea?
Your destination should come before port number.
Try this:
public static void execute(final String destination, final String port, final String message) {
Thread th = new Thread(new Runnable() {
public void run() {
MessageConnection msgConnection;
String address = "sms://:"+destination+":"+port;
try {
msgConnection = (MessageConnection) Connector.open(address);
TextMessage textMessage = (TextMessage) msgConnection.newMessage(MessageConnection.TEXT_MESSAGE);
textMessage.setAddress(address);
textMessage.setPayloadText(message);
msgConnection.send(textMessage);
msgConnection.close();
} catch (IOException e) {
e.printStackTrace();
}
}
});
th.start();
}
I would like to run a task during the waiting of a web request. If the task finishes before the request can return a response, then I would display a message "The server is taking too long". I'm using a WebClient object, how can I manage the time out?
public Class Result
{
protected override void OnNavigatedTo(NavigationEventArgs e)
{
if (NavigationContext.QueryString.TryGetValue("critere", out sCritere))
{
try
{
_datamanager = new DataManager();
_datamanager.m_evt_Client_DownloadStringCompleted += OnDownloadStringCompleted;
_datamanager.DownloadXmlData(DataManager.URL_RECHERCHE, sCritere);
//HERE I NEED TO RUN A TIMER If the response is too long i would display a message
}
catch(Exception ex)
{
MessageBox.Show(ex.Message, "Erreur", MessageBoxButton.OK);
NavigationService.GoBack();
NavigationService.RemoveBackEntry();
}
}
}
}
public Class DataManager
{
public void DownloadXmlData(string uri, string critere = "")
{
try
{
WebClient client = new WebClient();
client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(client_DownloadStringCompleted);
client.Credentials = new NetworkCredential(UserSaved, PasswordSaved, domain);
client.DownloadStringAsync(new Uri(uri + critere));
}
catch(WebException )
{
throw new WebException(MyExceptionsMessages.Webexception) ;
}
catch (Exception )
{
throw new UnknowException(MyExceptionsMessages.UnknownError);
}
}
public void client_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
//raise Downloadstringcompleted event if error==null
}
}
You can use BackgroundWorker..
BackgroundWorker bw = new BackgroundWorker();
bw.DoWork += (s, e) =>
{
// your task to do while webclient is downloading
};
bw.RunWorkerCompleted += (s, e) =>
{
// check whether DownloadStringCompleted is fired or not
// if not, cancel the WebClient's asynchronous call and show your message.
client.CancelAsync();
MessageBox.Show("message");
}
client.DownloadStringAsync(uri);
bw.RunWorkerAsync();
I'm working on parsing JSON on BlackBerry using org.json.me, but I can't parsing the result. Simulator Console says: No Stack Trace
Here's my code to parsing JSON after receiving JSON string from my restclient
try {
JSONObject outer=new JSONObject(data);
JSONArray ja = outer.getJSONArray("status");
JSONArray arr=ja.getJSONArray(0);
System.out.println(arr);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
And here's the piece code to get JSON from the server
public PromoThread(final String url, final ResponseCallback callback){
Thread t = new Thread(new Runnable(){
public void run() {
waitScreen = new WaitPopupScreen();
System.out.println("Log >> Promo thread run...");
synchronized (UiApplication.getEventLock()){
UiApplication.getUiApplication().pushScreen(waitScreen);
}
//network call
try {
conn = (HttpConnection) new ConnectionFactory().getConnection(url).getConnection();
conn.setRequestMethod(HttpConnection.GET);
conn.setRequestProperty("User-Agent", "Profile/MIDP-1.0 Confirguration/CLDC-1.0");
if (conn.getResponseCode() == HttpConnection.HTTP_OK) {
in = conn.openInputStream();
// parser.parse(in, handler);
//buff.append(IOUtilities.streamToBytes(in));
//result = buff.toString();
results = new String(IOUtilities.streamToBytes(in));
//System.out.println("Log >> Result: " + results);
UiApplication.getUiApplication().invokeLater(
new Runnable() {
public void run() {
//UiApplication.getUiApplication().popScreen(waitScreen);
callback.callback(results, waitScreen);
}
});
}
} catch (Exception ex) {
ex.printStackTrace();
} finally {
try {
if (in != null) {
in.close();
}
conn.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
});
//start thread
t.start();
}
Thanks for your help