Login using Servlet and JSP | JDBC | Part 3

[@phonesj3422]

THANK YOU! Almost went through every your video about Servlet and JSP, they're really helpful! Thank you again!

[@sarmadchandio3799]

In these 2 weeks, I completed this playlist with better results. Sir, you are best in your intelligence your teaching way is awesome. Sir I am going to start my career as a java developer this credit might go to you, really I enjoy your sessions.

[@wilsoncardoso150]

I just came here to say thank you so much for sharing and explaining the knowledge that you have, you explain with so much patient and passion that I was able to understand completely. Keep up the good work.

[@alena.s.ryzhkova]

Awesome playlist, a very useful comprehensive example thank u from Russia

[@nikesh2866]

Are you from Russia

[@vamsikrishna8556]

Thank you sooo much sir.... No words to express my happiness... Amazing explanation...

[@keerthikiki9760]

Hats off.... You are a great trainer 🙌

[@amandeep01010]

first of all great tutorials!! My concern is the password is not case sensitive. I think fetching the password from database for particular ID in Logan Dao and comparing it against the password from the login page would make it work.

[@manueldesouza1325]

Great explanation. I would however NEVER use bad coding practice, even if it's only for a quick example. This is exactly what creates bad coding habbits especially for people that are not yet very good at programming.

[@ganeshkaladagi690]

Tum bohot mast kaam karta hai navin bhai..!

[@saikatbanerjee9659]

Sir your explanations are very prompt and clear.There is one request for you sir, can you please a make project on Advance java.Then it will be very much helpful. Then I can experience a real life project.Advance thank you, sir. :)

[@_ravi_kumar_gupta]

explain very well sir can u please make a small mini project using jsp servlet and jdbc

[@yasirhaddad5729]

great tutorial, thanks.... i just have on comment : when user login with invalid data and redirect to the login page again !!! we should provide the user with message like that: (Invalid data Entered please login first ) other than that awesome job and good luck

[@saumyaagarwal8059]

Thankyou for the playlist...very helpful and easy to learn. Please keep uploading more

[@pulkit8490]

Woww. What a playlist sir🔥🤩.. Thanks a lot sir🙏

[@mihaidanieladin638]

This video series are very good.. password encrypt would be great :p Thanks Navim

[@davishek7]

*Navin

[@harshadityagollavilli7661]

Thank you for the video sir. You have explained it very clearly.

[@priyabharti6761]

Thanku so much sir....this video series is very helpful...sir please can u make videos on how to transfer data from clients page to the database... Please sir..

[@murtaza7865298]

Just wanna thank you for this amazing tutorial on java servlet. Furthermore, I want to ask a question, you taught us how to delete the cache so that using the back button we do not lend on secure web pages. Similarly how we can make the same thing when a user gets logged in after clicking the login button and then press back button and if the user is logged in so it should lend on the home page, not on login page?? if yes so how should we achieve that is there anything to handle with the headers? or needed to handle in the servlet itself or JSP file. Waiting for your response. :)

[@mukteshgautam4050]

good question what we are doing ito prevent back button in case we logged out is storing no cache in welcome.jsp and videos.jsp page(so that the require credentials again) and if we want to prevent going to login page after we have logged in, i guess we have to do the opposite of no-cahce like storing the credentials so that whenever user opens login page the data is already filled and he is redirected to welcome page!!! idk how to do this but guess we have to use some kind of headers on login page.

[@reshamdevirajasthan2124]

Sir you are great...Very nice explanation

[@prakharpal6274]

Very helpful playlist, thank you sir !!!

[@priyamkoner7295]

After enter my username and password then click submit button but doesn't work properly,doesn't enter any page..please help me sir?

[@pratyushrath1457]

Your content is really helpful and I am very grateful for it but your intro of "Welcome back aliens" is really irritating.

[@tejashnaidumunagala8405]

Thank you for sharing your knowledge sir..... i have small request could you please explain how to prevent csrf issue with double cookie concept. hope u see you my comment. Thanks in advance.

[@shashikantkushwaha7098]

Sir if i logout from one account its logout from all other account at same browser

[@sumeetnikam1376]

Hello sir!! When you double click on the back button it shows the login page with username and password as it is so the page becomes insecure

[@deepakkumarprajapati8823]

in dao.check(uname,pass) showing an error ,solution is use try catch block but when i am using try catch block login in log page showing exception it take's me to catch block 14:38

[@gunasheelan4753]

use try catch block in logindao(sql) class.

[@tejakommineni2415]

navin sir instead of using boolean method , can we fetch email and password by using collection concept using vector,arraylist,hashmap .... by using collection can you made video using collections concept to fetch email and password from database

[@ashwininemade1678]

Sir I want to create a framework using Java where all the CRUD operations can be implemented without actually writing the code for it. I want a basic idea on how I should program it using MVC architecture in Java. Please can you make a video on it??

[@pawanjaiswal9049]

Hi sir, I'm unable to add ojdbc.jar(Connector) to the lib folder of Web-INF. By default it's creating a folder named referenced library & putting the jar file to it & so it's giving an error : driver not found. If u could plz help me on this one... Thanks in advance.

[@ceo_google]

I think we might not need to create an object of dao if we make the check method static.

[@surendrasingh-vy4fs]

sir...., im using oracle database, im getting invalid username/password logon denied. can u tell me how to write for oracle database.

[@mrunalipunde4755]

Very helpful videos!! But if I am using oracle database, do I need to add any jar files?? If yes then where to find them.

[@sundharesanmohan2816]

maven repository

[@PARTHPATEL-ls6vf]

Hello sir i found this type of error in this video :- ------>"Type mismatch: cannot convert from java.sql.PreparedStatement to com.mysql.jdbc.PreparedStatement"

[@sivakumarr7799]

if copy the url and past in another tab page of the same browser window we are able to access the content. how to restrict?

[@manishaduggineni4949]

Sir it's a good vedio but in this video u are saving values in database before later giving same values if give other username password it will not work but it will nice if we store our user data first in database later retrieve back that data to check then it is good

[@8601586375]

u can create a registration page

[@darshangaikwad8626]

Sir we can also create bean class take userid and password and pass it in dao class.

[@sohaagarwal7336]

I wish to display an image using Servlet and Jsp.. Could u please share a video on the same

[@zenshyam]

Hey..Did you find it...How to do so..If yes....so do let me know....Thanking you in Advance...

[@manaspant3757]

Sir wanted to know about how to create a sign up page and then add that data to database

[@modernsanskari4398]

Upload videos on multiple Image/file upload and download on to server usingJDBC

[@zn6151]

In thing ResultSet with only next() is not enough to match up the user name and the password, am I right?

[@shreyashgupta7957]

I have to design such a login page for integrating payment gateway in my project, can you help me out... In terms of security features

[@sheetalnakade9206]

Hello sir, I run this program successfully .Before jdbc connectivity login page was redirecting to welcomepage but after doiong jdbc connectivity , I logged in successfully but its not redirecting to welcome page, its showing blank page ,why this happening ,please give me solution .

[@zenshyam]

happening the same with me....can you tell me whats wrong here..?...Thanking you in advance

[@gunasheelan4753]

same problem

[@ASinha097]

Sir,will u please provide complete video on Servlet/Jsp Listener...!!!! And its method and all.

[@zackfernandez3226]

Hello, I deployed my war on my aws server and I´m gettin the next issue. Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request Reason: Error reading from remote server can you help me identify why this is happening? thanks a lot for the attention

[@swarnenduchakraborty2891]

Thanks sir great video!

[@uditjain3212]

unreported exception java.sql.SQLException; must be caught or declared to be thrown sir i have this type of problem

[@sagarmeena0210]

you're amazing sir

[@asyiqinnasir8121]

did he just call us aliens XD nice tutorial! love ittt

[@rohithkumarshambuni4776]

I have done every thing but its not checking my db .redirecting to login page .how to resolve it .i would like to share u my code if needed

[@itachi-senpaii]

thanks a lot for these videos

[@krishna4074]

Sir I have added the jar file to the library even after that I got the error of (com.mysql.jdbk.driver) : can anyone tell me what should I do?

[@ShivamKendre-fc3su]

great explained

[@GamingwithC4ndy]

My project is not working after entring the correct uname & pass help me please

[@yashhonrao491]

sir we want client server relations , please make video on how to CRUD using database

[@giridharkoppisetti]

sir iam getting an error as column index out of range:1, no of columns: 0

[@vivekdubey8249]

Sir i followed the exact same steps for database connection but i am getting a blank output.even though i am using correct uname and pass...someone plss help mee

[@karthikkumar990]

i can help

[@vivekdubey8249]

@@karthikkumar990 pls bro help

[@chinmayraut8561]

hello sir, i m experiencing an error while passing string argument to check method in login servlet and the error is ClassNotFound. anyone can u help me out??

[@vipulgupta2072]

I am facing these errors: at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Unknown Source) Help!!! Help!!!

[@hemanthreddy7135]

String sql = "select * from login where uname=? and pass=?"; String url = "jdbc:mysql://localhost:3306/MyAppDb"; String username = "root"; String password = "Myname#21"; Connection con = DriverManager.getConnection(url,username, password); (after this statement its directly printing the exception - e.printStackTrace(). java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) when i debug the code, i can see that password is being set to "0" How do i resolve this

[@deepakkumarprajapati8823]

when your password is set to "0" then you should change you password Myname#21 by 0

[@ManideepSagar]

Great video

[@bhoomikagarg4416]

My JSTL is not working in this as ${username} is not printing the value of it rather its just printing ${username}. I have tried a lot of things but couldn't find any solution. Can you help me ?

[@pascala3823]

Hi @bhoomika garg! What things did you try?

[@sagarrao79]

we need to below tag welcome page isELIgnored="false" like this. it will work

[@yasvanthhari749]

Worth information

[@vjai9858]

Awesome!!☺

[@hemanthselvam9645]

how to update customers login information in database using servlet

[@avishekchatterjee531]

When I give uname and password after run as server...nothing is happening...even the previous page also didnt show...pls help me

[@sudipmandal8599]

Avishek Chatterjee hey bro.... did you get the solution???

[@arun1993apr]

i'm getting error if (dao.check(uname, pass)) in check .....what to do

[@samuelmanukonda286]

Even I have the same problem, do you have any solution for this?

[@arun1993apr]

no

[@puneetnagpal1981]

Make sure you have created the check function in LoginDao with 2 parameters. Secondly check that whether the instance of LoginDao is created as dao only as mentioned in vedio. think it should work and working fine in my case

[@keerthikiki9760]

Try to surround it with try and catch block

[@georgekrax]

I cannot conenct with database. Any possible solutions?

[@msh1996]

Thank you so much sir.

[@simbol5638]

Thanks very much sir. But its not working here. Its giving me a list of errors

[@atuldixit9581]

can we use XAMPP for MySQL..?

[@ronaldaguilar4395]

yes you can

[@jashandeepsingh9028]

we can do all these things with php , so why we need to learn java servlets and jsp.

[@pratikbhardwaj3804]

who will give security??, have you ever seen that any banking or financial webpage made with PHP or any other language??

[@infinite639]

register page where it is i want register page

[@bay_0f_bengal100]

how to login using otp?

[@larswang6759]

Nice video

[@TheDheerendraJaiswal]

thank you sir.

[@techtech0415]

sir can u pls make a registration form using jsp ,servlet and jdbc

[@RohitKumar-zs4mo]

thanks

[@BrianEmmanuel-z8e]

ni unyama tuu unapimwa

[@vinaykumarjoshi5187]

Sodhi...

[@hemanthkumarnr4555]

here i'm using oracle database, problem with Class.forName java code String sql="select * from loginmodule where uname=? and pass=?"; String url="jdbc:oracle:thin:@localhost:1521:xe"; String username="login"; String password="tiger"; public boolean check(String uname,String pass) { try { Class.forName("oracle.jdbc.driver.OracleDriver"); Connection conn= DriverManager.getConnection(url,username,password); PreparedStatement mystat= conn.prepareStatement(sql); mystat.setString(1, uname); mystat.setString(2, pass); ResultSet rs=mystat.executeQuery(); if(rs.next()) { return true; } error java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1412) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1220) at java.base/java.lang.Class.forName0(Native Method) at java.base/java.lang.Class.forName(Class.java:375) at com.login.dao.logindao.check(logindao.java:19) at com.login.login.doPost(login.java:24)

[@dakshprajapati4233]

Thanks sir ❤️❤️

[@sumankumar-vx9kp]

Thank u so much

[@waytolearningcomputerscien6558]

thank you sr