Login With Twitter Using Java - Tutorial

If you implement "Login With Twitter" for your website, users don't need to remember password for your website, so users will feel comfortable to use your website. In advance, you can access users timeline feed. Twitter is providing Twitter4J to implement twitter api using java, download this twitter4j and add it to build path

Click here to see DEMO Download eclipse project

Project

I have provided sample project here, download it. Open Setup.java and give your twitter app credentials, database credentials. Create MySQL database schema with name "demos". Created below specified table. Import this project into Eclipse, add it to tomcat server, run index.html

Implementation

When user click on Login with twitter button, Provide them access link which is generated by Twitter4j with your app credentials.
User will be redirected to twitter api page
Once user gives permission, access token and oauth verifier will be sent to callback URL
Now verify the access token with oauth verifier. It will generate access token object which will have access token and access token secret
Now save access token and access token secret in database with user details like twitter user id and screen name.

User cant change their twitter user id, so we can use this to identify user. If user login again, we can process user's account using twitter user id. Whenever you want to update status on user's timeline, you can do with these saved access tokens.

Create App In Twitter Developer Page

Open twitter apps webpage. Create your app and get Consumer Key and Consumer Secret Key. Observe below diagram.

Database Table

Created database table like below.

CREATE TABLE `demos`.`twitter_user` (
  `user_id` INT NOT NULL AUTO_INCREMENT COMMENT '',
  `twitter_user_id` INT NULL COMMENT '',
  `screen_name` VARCHAR(45) NULL COMMENT '',
  `access_token` VARCHAR(100) NULL COMMENT '',
  `access_token_secret` VARCHAR(100) NULL COMMENT '',
  `created_date` DATETIME NULL DEFAULT CURRENT_TIMESTAMP COMMENT '',
  PRIMARY KEY (`user_id`)  COMMENT '',
  UNIQUE INDEX `twitter_user_id_UNIQUE` (`twitter_user_id` ASC)  COMMENT '');

Prepare Signin Link

Observe below code. Configure twitter object with Consumer Key and Secret Key, Generate request token with callback URL, save it to session. Generate authentication URL and redirect to that URL

// configure twitter api with consumer key and secret key
ConfigurationBuilder cb = new ConfigurationBuilder();
cb.setDebugEnabled(true)
  .setOAuthConsumerKey(Setup.CONSUMER_KEY)
  .setOAuthConsumerSecret(Setup.CONSUMER_SECRET);
TwitterFactory tf = new TwitterFactory(cb.build());
Twitter twitter = tf.getInstance();
request.getSession().setAttribute("twitter", twitter);
try {
    
    // setup callback URL
    StringBuffer callbackURL = request.getRequestURL();
    int index = callbackURL.lastIndexOf("/");
    callbackURL.replace(index, callbackURL.length(), "").append("/callback");

    // get request object and save to session
    RequestToken requestToken = twitter.getOAuthRequestToken(callbackURL.toString());
    request.getSession().setAttribute("requestToken", requestToken);
    
    // redirect to twitter authentication URL
    response.sendRedirect(requestToken.getAuthenticationURL());

} catch (TwitterException e) {
    throw new ServletException(e);
}

Callback Servlet

Callback servlet will receive oauth_verifier parameter. Verify access token with that verification code, then you will get access token object, Now save or update access token or access token secret to database. Here we identify user with twitter user id that is always constant. TwitterDAO.selectTwitterUser method gives user object based on twitter user id.

// Get twitter object from session
Twitter twitter = (Twitter) request.getSession().getAttribute("twitter");
//Get twitter request token object from session
RequestToken requestToken = (RequestToken) request.getSession().getAttribute("requestToken");
String verifier = request.getParameter("oauth_verifier");
try {
    // Get twitter access token object by verifying request token 
    AccessToken accessToken = twitter.getOAuthAccessToken(requestToken, verifier);
    request.getSession().removeAttribute("requestToken");
    
    // Get user object from database with twitter user id
    UserPojo user = TwitterDAO.selectTwitterUser(accessToken.getUserId());
    if(user == null) {
       // if user is null, create new user with given twitter details 
       user = new UserPojo();
       user.setTwitter_user_id(accessToken.getUserId());
       user.setTwitter_screen_name(accessToken.getScreenName());
       user.setAccess_token(accessToken.getToken());
       user.setAccess_token_secret(accessToken.getTokenSecret());
       TwitterDAO.insertRow(user);
       user = TwitterDAO.selectTwitterUser(accessToken.getUserId());
    } else {
       // if user already there in database, update access token
       user.setAccess_token(accessToken.getToken());
       user.setAccess_token_secret(accessToken.getTokenSecret());
       TwitterDAO.updateAccessToken(user);
    }
    request.setAttribute("user", user);
} catch (TwitterException | DBException e) {
    throw new ServletException(e);
} 
request.getRequestDispatcher("/status.jsp").forward(request, response);

17 comments:

Nishchal Bhole6 September 2017 at 02:33
how to implement login with twitter functionality in a web application using java play framework?
micofo2 November 2017 at 04:03
Thanks for this tutorial, it saved my project
Martina17 January 2018 at 05:46
To begin adequately first gathering the general population who really have something intriguing to state on TweetDeck buy twitter followers uk
Alex Jhon7 February 2018 at 06:13
When you set up your Twitter account, your first aim would be to get the maximum number of followers. BRSM.io
Smith21 March 2018 at 08:06
many people come and go but i don't think that anyone can replace him https://twitter.com/darrenwinters01 follow this man for the best ideas about business..!!
James Johnes2 November 2018 at 09:16
Adopt Restrictions on Posts, yet comprehend the necessities of the NLRA first! social media groups
Johnny Gray3 December 2018 at 08:45
I received all the services for which I paid, the price is affordable and corresponds to quality. I recommend ALL-SMM to all those who want to cheat Instagram account ... thanks to the guys for the great work! :))) Now I'm going to buy Instagram likes.
Genious Person15 December 2018 at 09:35
Excellent article. Very interesting to read. I really love to read such a nice article. Thanks! keep rocking. smm panels list
max simth4 March 2019 at 19:56
howdy was simply checking whether you minded a remark. i like your site and the thme you picked is super. I will be back. Buy Organic Twitter Retweets
Massivepel16 May 2019 at 06:11
Much thanks to you for some other useful blog.
Twitter accounts for sale
angela cozzens8 August 2019 at 03:04
This comment has been removed by the author.
Muhammad Rafey23 September 2019 at 11:41
Hey what a brilliant post I have come across and believe me I have been searching out for this similar kind of post for past a week and hardly came across this. Thank you very much and will look for more postings from you. Buy Twitter Likes
Beautiful Albania2 October 2019 at 12:41
If you are a music lover I suggest you stay in Korca and listen to their beautiful serenades. Every note they sing seems like it is a part of a beautiful story from the city Albanian Riviera
Azlan10 October 2019 at 09:49
More often than not, when a LinkedIn profile for the organization is available, it is appeared at the exceptionally top of a hunt. visit now
SociFan19 November 2019 at 02:50
https://www.socifan.com/free-youtube-views It can be pretty harsh for beginners to see legends like PewDiePie and T-Series accumulate millions of views that easy. Don't fall into despair, though. It's time to go berserk with SociFan; we got your back with free YouTube views!

YouTube is a platform with tight competition, and it can be extremely challenging for a beginner to grind amongst the best in the game. Nevertheless, all hope is not lost yet.

This harsh competition is what makes YouTube beautiful and diverse. In this way, users have millions of unique content which is ready to consume. There is something for everyone.
halilcomtr21 November 2019 at 00:56
So, when you decided to buy facebook likes you can benefit from many variations with our service.