I want to validate username and password in JavaScript. I want to validate username and password with database values. If login failed i want to display alert message...ok. But problem is that i have index.jsp page. After clicking login button control goes to homepage.
jsp..okk.. in index.jsp I have taken dropdown to show designation. I select design then control goes to respective homepage... in homepage. I am checking username and password with database values. If login successful it goes to respective pages but if login failed it has to show me alert message. How can i do that ?
I am creating a login form for my project and it works great,the issue is that i want to open up different forms dependent on the username and password that i enter.for example if i enter a password 'manager' then it should open the manager page,or 'employee' should open the employee page.
I'm thinking that it is just a case of creating another sql query but i have tried and i cannot see the solution,i can open the employee page by default but that is not what i am trying to achieve. I am using an sqlite database which holds the username and password.
Here is my code
private void btn_LoginActionPerformed(java.awt.event.ActionEvent evt) { // code to login to the back office system String sql =" select username,password from Employee where username =? AND password =?";//sql query try{ pst =conn.prepareStatement(sql);
I have a problem with my code i try to identify users by password and username but I cannot recognize only the last row in my table in database what can i do ....
My homework is asking me to write a program that prompts the user to enter a password and displays "valid password" if the rule is followed or "invalid password"
Sample enter a string for password: wewewx valid password
It's being graded on Design of my GUI Dialog box User friendliness Creativity
My current issues with the current code I have written is simply the password doesn't work unless it starts with 2 digits, the other order it displays as wrong. and I have no idea how to add a GUI.
I am new to JAVA GUI programming and was wondering how you go about getting and testing if a password field text equals something. For example, if the password equals "password" then do something.
I have a JSF page for changing login credentials and i preferred to use Java validations instead of JSF validations on the inputText. The password validation works fine but the username validation does not produce any output. This is my JSF form
HTML Code:
<h:form> <p><strong>Please type your new username: </strong> <h:inputText size="15" value="#{register.newUsername}"/></p> <p><strong>Please type new your password: </strong> <h:inputSecret size="15" value="#{register.newPassword}" /></p> <p><strong>Please retype new your password: </strong>
I have a servlet. Users from other machines access that servlet and I want to capture the remote user's UserName and do validation over that.It's just a simple servlet and no login/password is present. I tried request.getRemoteUser(), but its of no luck.
I need the username produced by this program to be in all lower case. The code is below.
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */
package dcollinshw03; import java.util.Scanner; import java.util.Random; public class DcollinsHW03 { public DcollinsHW03() {
I created a GUI with a jTextField as an input box and am wondering how to validate that this data is an integer from 0 - 9. Here is what I have. However the if statement shows an error that says int cannot be dereferenced.
private void doneButtonActionPerformed(java.awt.event.ActionEvent evt) { //Create and Initialize Variable int category = Integer.parseInt(categoryInput.getText()); if (category.matches(0-9)); //int cannot be dereferenced error here {
Why will this NOT validate correctly in my IF Statement? Basically, a user chooses an option from the drop down list. The value is passed to t.jsp (itself) and if the option "All" is chosen, then it does something. If any of the years are chosen, then it does something else.
I have a JSP which will let a user register for an account at my website. If the user submits wrong or illegal info into the JSP, then I want to return the same JSP with an appropriate error message next to/above each wrongly filled (form) fields.
If possible, highlight the wrongly filled form field - this feature is not necessary though.
I have given a sample below to show what I need. I understand that the sample must be using something like javascript, but I don't know all that client side scripting. I only want to use JSP to do it. As I said, I want to sort of return the JSP form to the user after marking all the mistakes and how to correct them.
I have a click button called log off , here once a user clicks it , task goes to logout servlet to end current user session . below is my code , I don't know why it works fine with mozilla firefox and google chrom but not working with internet explorer.
here it goes fine to my index, but if I logged in again, I should enter a new session , but unfortunately this not happened in explorer , works fine with mozilla , and chroom.
I have also done in my index.jsp the check like below:
just to erase whatever previous session . But why session exist on same page ! only in explorer , it makes me open new explorer for new user and that is what I don't want !
Code given below does real time validation for 2 JTextFields. While entering some values to txt1 and txt2 enables the save button and removing values from txt2 or txt1 reset the save button to disable. I use Netbeans as IDE.What I want to do is, enable Save button after checking multiple JTextFields for validity. If any of the text fields is empty, btnSave must be disabled.This program gives expected result up to some extent. But there is little issue. After form appears for the first time, When I type something on Textfield1, Save button enables without checking Textfield2. This happens only at the first time.
public class NewJFrame extends javax.swing.JFrame { private Boolean isValidFromTextField1 = true; private Boolean isValidFromTextField2 = true; public NewJFrame() { initComponents(); btnSave.setEnabled(false);
I am trying to implement an example (Book* : Java SE 7 ..By S G Ganesh) for validating an IP address but it fails to validate a valid IP addresses. I found another example on the internet(**) and it works super fine, no problem at all. I edited the code (the one I got from internet) into the exact format like book and it still works super but i don't understand why the books' example doesn't work though both look exactly the same now ,further more, how can i compare String x and y for equality?
public class TestClass { void validateIP(String ipStr) { String one = "((25[0-5]|2[0-4]d|[01]?dd?)(.)){3}(25[0-5]|2[0-4]d|[01]?dd?)"; //copied from internet and edited String two = "((25[0–5]|2[0–4]d|[01]?dd?)(.)){3}(25[0–5]|2[0–4]d|[01]?dd?)"; // copied from book String x = "((25[0-5]|2[0-4]d|[01]?dd?)(.))"; String y ="((25[0–5]|2[0–4]d|[01]?dd?)(.))";
I am working in the field of validating data. I need to validate names and test scores and i keeping getting errors in my code. I keep tracing back all the errors and now I am stuck at a logic error. It is giving me a the validate sentence over and over even when i type stuff in. I have searched up how to do the .equals to a string but it doesn't give me a accurate enough to my problem.
import java.util.Scanner; public class P5A { public static void main (String args[]) { System.out.println( "Always Show" ); Scanner reader = new Scanner(System.in);
How to read the excel sheet data and validate that null values are inserted or columns data exceeded with respected to header.and these validated data should be stored into 3 different tables... My requirement is college data excel sheet with combination of all groups like mba,mca,and etc...then re ad the data and find the groups then
1. give entry in the UP_LOAD_DATA_HIST table with this excel data uploading with this user and this date, 2. find the group of the department and save data into CATAGIRY_TBL. 3. Finally save the All data into the students table.
Now, I have got a comment saying I should get the database connection from connection pool. And one more issue is that I have used the function System.getProperty("user.name") to get the username which i have logged in. But this code will be run on Unix which will not support this function. Any function where I can get the windows username. There is a function getUserPrincipal(), but this function returns a NULL. How to resolve this.
