I'm learning Javamail these days following this website:
http://www.tutorialspoint.com/javamail_api/
I test the sending & added some extra stuff because it was on Android & it worked!
But things have changed completely when I tried to follow receiving email Tutorial which makes me wonder..
Is it possible to make this code :
https://www.tutorialspoint.com/javamail_api/javamail_api_fetching_emails.htm
works on android but using XML interface?!
You can use the following code:
public static void receiveEmail(String pop3Host, String storeType, user, String password) {
try {
//1) get the session object
Properties properties = new Properties();
properties.put("mail.pop3.host", pop3Host);
Session emailSession = Session.getDefaultInstance(properties);
//2) create the POP3 store object and connect with the pop server
POP3Store emailStore = (POP3Store) emailSession.getStore(storeType);
emailStore.connect(user, password);
//3) create the folder object and open it
Folder emailFolder = emailStore.getFolder("INBOX");
emailFolder.open(Folder.READ_ONLY);
//4) retrieve the messages from the folder in an array and print it
Message[] messages = emailFolder.getMessages();
for (int i = 0; i < messages.length; i++) {
Message message = messages[i];
System.out.println("---------------------------------");
System.out.println("Email Number " + (i + 1));
System.out.println("Subject: " + message.getSubject());
System.out.println("From: " + message.getFrom()[0]);
System.out.println("Text: " + message.getContent().toString());
}
//5) close the store and folder objects
emailFolder.close(false);
emailStore.close();
} catch (NoSuchProviderException e) {
e.printStackTrace();
} catch (MessagingException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
call your method passing some parameters:
String host = "pop.gmail.com";//change accordingly
String mailStoreType = "pop3";
String username= "example#gmail.com";
String password= "xxxxx";//change accordingly
receiveEmail(host, mailStoreType, username, password);
Source: Steps for receiving the email using JavaMail API
Like the title , my json str sometimes like this:
{
"data": {
"changebaby": "no change",
"changemama": {
"mamacontext": "mama is a good mama",
"mamaico": "",
"mamatitle": "mama"
}
}
}
sometimes it like this:
{
"data": {
"changebaby": "no change",
"changemama": "no change"
}
}
as you see,the value of the "changebaby" key and the "changemama" key sometimes is a String, sometimes is a object, how should i parse it by gson? Could anybody help me?
Don't use the android api to parse the json string, need to use the gson lib of google to parse the json string, could anybody help me?
if(jsonObject.optJSONObject("changemama") != null)
{
JSONObject changemama=jsonObject.optJSONObject("changemama");
//Its JSON object, do appropriate operation
}
else if(jsonObject.optString("changemama") != null)
{
//Its string, do appropriate operation
}
if you have more number of possibilities like boolean or int or long, refer this
optJSONObject
Returns the value mapped by name if it exists and is a JSONObject, or
null otherwise.
Or go with the way lawrance has given : Determine whether JSON is a JSONObject or JSONArray
Try with this :
JSONObject changemama=jsonObject.optJSONObject("changemama");
if(changemama== null){
String str=jsonObject.optString("changemama");
}
Try this code.
JSONObject data;
try {
data = jsonObj.getJSONObject("changemama");
// do stuff
} catch (JSONException e) {
data = jsonObj.getString("changemama");
// do stuff
}
try this :
if(obj.has("changemama")){
if(obj.optString("changemama").length() > 0){}
else if(obj.optJSONObject("changemama").length() > 0){}}
To simplyfy android development, we can ask for the backend developers to change the Mobile API.The new API could returen the json string that cann't change the value.The value of all keys cann't sometimes be a string, sometimes a object.
Why does parse not appear to be doing anything with my query whatsoever. It's almost as if the entire block is ignored..
try {
Log.w("UpdateContacts", "Attempting an update");
List<ParseObject> result = friendshipAndUserQuery.find();
for (ParseObject friendship : result) {
Log.i("UpdateContacts", "Found friendship" + friendship.getObjectId());
UserObject friend = (UserObject) friendship.getParseObject("to");
Log.i("UpdateContacts", "Converted friendship to friend " + friend.getObjectId());
contacts.add(friend);
((MainActivity) mContext).notify("UpdateContacts", friend.getObjectId() + " / " + friend.getUsername(), true);
}
} catch (ParseException e) {
Log.e("ParseException", e.toString());
((MainActivity) mContext).notify("UpdateContacts", e.toString(), true);
}
I get the "attempting an update" Log, but nothing else. I can see from my Parse portal that the query has run, my android simply gets nothing back at all.. not an empty set, nothing. No logs were made..
Solved
Query referenced the incorrect table name (case sensitive) and Parse simply stops all related code, rather than spouting out an error..
I'm attempting to get a list of URL's from a subreddit in order to load them into universal image loader for viewing pleasure. However, I cannot figure out where my query is going wrong. Plus, I'm not familiar with android studio's logcat as compared to eclipses logcat, so I'm not exactly sure where to look for my debugging responses.
Here's the query method:
public void queryReddit()
{
// Prepare your search string to be put in a URL
// It might have reserved characters or something
// String urlString = "";
// try {
// urlString = URLEncoder.encode(searchString, "UTF-8");
// } catch (UnsupportedEncodingException e) {
//
// // if this fails for some reason, let the user know why
// e.printStackTrace();
// Toast.makeText(this, "Error: " + e.getMessage(), Toast.LENGTH_LONG).show();
// }
// Create a client to perform networking
AsyncHttpClient client = new AsyncHttpClient();
// 11. start progress bar
setProgressBarIndeterminateVisibility(true);
// Have the client get a JSONArray of data
// and define how to respond
client.get("http://www.reddit.com/r/pics/.json",
new JsonHttpResponseHandler() {
#Override
public void onSuccess(JSONObject jsonObject) {
// 11. stop progress bar
setProgressBarIndeterminateVisibility(false);
// Display a "Toast" message
// to announce your success
Toast.makeText(getApplicationContext(), "Success!", Toast.LENGTH_LONG).show();
// // 8. For now, just log results
// Log.d("omg android", jsonObject.toString());
try
{
Log.d("go reddit yay", jsonObject.toString());
JSONObject testingData = (JSONObject) jsonObject.get("data");
JSONArray testingChildren = (JSONArray) testingData.get("children");
JSONObject testingLogData = (JSONObject) testingChildren.get(0);
JSONArray children = (JSONArray) jsonObject.get("children");
JSONObject logData = (JSONObject) children.get(0);
Log.d("go reddit yay", logData.getString("url"));
Log.d("go reddit yay", testingLogData.getString("url"));
for(int i = 0; i < 10; i++)
{
JSONObject data = (JSONObject) children.get(i);
if(data.getString("url") != null)
{
System.out.println(data.getString("url"));
}
//if the url field exists and it's a picture that univ image loader understands then add it
if(data.getString("url") != null && data.getString("url").substring(data.getString("url").length()-3).equals("png") ||
data.getString("url").substring(data.getString("url").length()-3).equals("jpg"))
{
imageUrls.add(data.getString("url"));
System.out.println(data.getString("url"));
}
//TODO I found this error: this requires android.permission.INTERACT_ACROSS_USERS_FULL
}
mPagerAdapter.notifyDataSetChanged();
} catch (JSONException e)
{
e.printStackTrace();
}
//TODO Might want to put all this data in a try catch block and do it right here.
// update the data in your custom method.
//updateData()
}
#Override
public void onFailure(int statusCode, Throwable throwable, JSONObject error)
{
// 11. stop progress bar
setProgressBarIndeterminateVisibility(false);
// Display a "Toast" message
// to announce the failure
Toast.makeText(getApplicationContext(), "Error: " + statusCode + " " + throwable.getMessage(), Toast.LENGTH_LONG).show();
// Log error message
// to help solve any problems
Log.e("omg android", statusCode + " " + throwable.getMessage());
}
});
}
Within the try catch block, the only logged information that ends up being sent to logcat is the first line, Log.d("go reddit yay", jsonObject.toString());
I can't find the responses from the other log calls which is very strange to me.
Here's the response from the first log call:
06-17 06:35:29.324 17133-17133/.wallpaper D/absfr﹕ {"data":{"after":"t3_2823ou","children":[{"data":{"media_embed":{},"author_flair_css_class":null,"score":503,"created_utc":1402931529,"clicked":false,"visited":false,"id":"28a94k","author":"JamesBDW","title":"Any Bronson fans? [1920x1080]","over_18":false,"created":1402960329,"name":"t3_28a94k","selftext_html":null,"domain":"i.imgur.com","author_flair_text":null,"secure_media":null,"num_reports":null,"edited":false,"stickied":false,"link_flair_text":null,"link_flair_css_class":null,"saved":false,"secure_media_embed":{},"subreddit_id":"t5_2qmjl","distinguished":null,"gilded":0,"url":"https:\/\/i.imgur.com\/Hq1fcSm.jpg","banned_by":null,"subreddit":"wallpaper","is_self":false,"num_comments":31,"approved_by":null,"thumbnail":"http:\/\/a.thumbs.redditmedia.com\/Dh2iU7Q0rpFogkWt.jpg","permalink":"\/r\/wallpaper\/comments\/28a94k\/any_bronson_fans_1920x1080\/","hidden":false,"likes":null,"downs":188,"ups":691,"selftext":"","media":null},"kind":"t3"},{"data":{"media_embed":{},"author_flair_css_class":null,"score":8,"created_utc":1402989714,"clicked":false,"visited":false,"id":"28cnyn","author":"ZadocPaet","title":"Active Dunes on Mars (OS) [1024x768]","over_18":false,"created":1403018514,"name":"t3_28cnyn","selftext_html":null,"domain":"nasa.gov","author_flair_text":null,"secure_media":null,"num_reports":null,"edited":false,"stickied":false,"link_flair_text":null,"link_flair_css_class":null,"saved":false,"secure_media_embed":{},"subreddit_id":"t5_2qmjl","distinguished":null,"gilded":0,"url":"http:\/\/www.nasa.gov\/sites\/default\/files\/styles\/1024x768_autoletterbox\/public\/pia18244.jpg","banned_by":null,"subreddit":"wallpaper","is_self":false,"num_comments":1,"approved_by":null,"thumbnail":"http:\/\/a.thumbs.redditmedia.com\/dFTBquSWiMSjK0aZ.jpg","permalink":"\/r\/wallpaper\/comments\/28cnyn\/active_dunes_on_mars_os_1024x768\/","hidden":false,"likes":null,"downs":3,"ups":11,"selftext":"","media":null},"kind":"t3"},{"data":{"media_embed":{"content":"<iframe class=\"embedly-embed\" src=\"\/\/cdn.embedly.com\/widgets\/media.html?src=http%3A%2F%2Fimgur.com%2Fa%2F0jeZf%2Fembed&url=http%3A%2F%2Fimgur.com%2Fa%2F0jeZf&image=http%3A%2F%2Fi.imgur.com%2F2PdUiuE.jpg&key=2aa3c4d5f3de4f5b9120b660ad850dc9&type=text%2Fhtml&schema=imgur\" width=\"550\" height=\"550\" scrolling=\"no\" frameborder=\"0\" allowfullscreen><\/iframe>","scrolling":false,"height":550,"width":550},"author_flair_css_class":null,"score":1,"created_utc":1403004127,"clicked":false,"visited":false,"id":"28czid","author":"smessies","title":"I found a wallpaper album full of iconic design chairs. I tought there were some important ones missing so i started adding some myself. work in progress! [1920x1200]","over_18":false,"created":1403032927,"name":"t3_28czid","selftext_html":null,"domain":"imgur.com","author_flair_text":null,"secure_media":null,"num_reports":null,"edited":false,"stickied":false,"link_flair_text":null,"link_flair_css_class":null,"saved":false,"secure_media_embed":{},"subreddit_id":"t5_2qmjl","distinguished":null,"gilded":0,"url":"http:\/\/imgur.com\/a\/0jeZf","banned_by":null,"subreddit":"wallpaper","is_self":false,"num_comments":0,"approved_by":null,"thumbnail":"http:\/\/b.thumbs.redditmedia.com\/GYaN5fyJfY8fI8xE.jpg","permalink":"\/r\/wallpaper\/comments\/28czid\/i_found_a_wallpaper_album_full_of_iconic_design\/","hidden":false,"likes":null,"downs":0,"ups":1,"selftext":"","media":{"type":"imgur.com","oembed":{"thumbnail_height":1200,"author_url":"http:\/\/imgur.com\/user\/smessies","width":550,"type":"rich","version":"1.0","thumbnail_url":"http:\/\/i.imgur.com\/2PdUiuE.jpg","thumbnail_width":1920,"title":"imgur: the simple image sharer","height":550,"description":"Imgur is home to the web's most popular image content, curated in real time by a dedicated community through commenting, voting and sharing.","author_name":"smessies","html":"<iframe class=\"embedly-embed\" src=\"\/\/cdn.embedly.com\/widgets\/media.html?src=http%3A%2F%2Fimgur.com%2Fa%2F0jeZf%2Fembed&url=http%3A%2F%2Fimgur.com%2F
no idea what to do.
One last debugging info is that the toast for the onSuccess method does appear, so it is clearly successful in it's query, I'm just doing something wrong in interpreting the data.
From your description it seems like a statement after the first Log.d("go reddit yay", ...); call throws an exception which you can't see.
Try replacing your exception handling code:
} catch (JSONException e)
{
e.printStackTrace();
}
with this:
} catch (Throwable t)
{
Log.e("omg android", "Exception in onSuccess()", t);
}
and check if any exceptions are logged.
I want to get first and last name of a google account using gdata library. I have the auth token(I take it from android device - send it to my java servlet- then should add an insert into a mysql db with first, last, display name and provider_uid(provider_uid is the form of https://www.google.com/accounts/o8/id?id=AItOawmyn...)).
I used Contacts feed like this(without success):
public String tryGoogleAuthentication(String auth_token){
ContactsService contactsService = new ContactsService("...");
contactsService.setUserToken(auth_token);
//contactsService.setAuthSubToken(auth_token);
ContactFeed feed = null;
try {
feed = contactsService.getFeed(new URL("https://www.google.com/m8/feeds/contacts/" + "someEmail#gmail.com" + "/full?max-results=10000"), ContactFeed.class);
} catch (IOException e) {
e.printStackTrace();
return CONST.GOOGLE_AUTH_INVALID_TOKEN;
} catch (ServiceException e) {
e.printStackTrace();
return CONST.GOOGLE_AUTH_INVALID_TOKEN;
} catch (NullPointerException e) {
e.printStackTrace();
return CONST.GOOGLE_AUTH_INVALID_TOKEN;
}
if (feed == null)
return "";
String externalId = feed.getId();
Person person = feed.getAuthors().get(0);
String email = person.getEmail();
String name = person.getName();
String nameLang = person.getNameLang();
String extensionLocalName = person.getExtensionLocalName();
String uri = person.getUri();
System.out.println("externalId: " + externalId);
System.out.println("email: " + email);
System.out.println("name: " + name);
System.out.println("nameLang: " + nameLang);
System.out.println("extension local name: " + extensionLocalName);
System.out.println("URI: " + uri);
System.out.println(feed.getSelf().getEntries().get(0).getTitle().getPlainText());
return CONST.STATUS_OK;
}
Also,
System.out.println("ID: " + feed.getSelf().getEntries().get(0).getId());
will output:
ID: http://www.google.com/m8/feeds/contacts/someEmail%40gmail.com/base/c....
but I want something like this:
https://www.google.com/accounts/o8/id?id=AItOawmyn...
I need this to insert into an existing data base.
Please note that I want the info only for the account, not for it's contacts.
Thanks,
Alex
Please see this answer from google groups for resolution. The problem is that I cannot access user profile with the auth_token taken from the android because it's a Client Login token, and Client Login does not have a scope for accessing user's profile. I integrated OAUTH login in android like this and with the token returned, I can access user's profile.
Alex.