message box
message box
How to show the message "invalid username and password" after redirecting the page to the login form?
View Answers
February 28, 2011 at 4:06 PM
JSP Login validation
1)login.jsp:
<html>
<script>
function validate(){
var username=document.form.user.value;
var password=document.form.pass.value;
if(username==""){
alert("Enter Username!");
return false;
}
if(password==""){
alert("Enter Password!");
return false;
}
return true;
}
</script>
<form name="form" method="post" action="check.jsp" onsubmit="javascript:return validate();">
<table>
<tr><td>Username:</td><td><input type="text" name="user"></td></tr>
<tr><td>Password:</td><td><input type="password" name="pass"></td></tr>
<tr><td></td><td><input type="submit" value="Submit"></td></tr>
</table>
</form>
</html>
<%String msg=request.getParameter("msg");
if(msg!=null){
%>
<label><font color="red"><%=msg%></font></label>
<%
}
%>
2)check.jsp:
<%@page import="java.sql.*"%>
<%
String user=request.getParameter("user");
String pass=request.getParameter("pass");
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","root");
Statement st=con.createStatement();
ResultSet rs=st.executeQuery("select * from login where username='"+user+"' and password='"+pass+"'");
int count=0;
while(rs.next())
{
count++;
}
if(count>0)
{
out.println("welcome "+user);
}
else
{
response.sendRedirect("login.jsp?msg=Invalid Username or Password");
}
%>
Ads
Related Tutorials/Questions & Answers:
message box
message box How to show the message "invalid username and password" after redirecting the page to the login form
message box How to show the message "invalid username and password" after redirecting the page to the login form
Java Message Box
Java Message Box In this tutorials you will learn about how to create Message Box in Java. Java API provide a class to create a message Box in java. By message box we mean a box in which message is displayed or a box from which input
Java Message Box In this tutorials you will learn about how to create Message Box in Java. Java API provide a class to create a message Box in java. By message box we mean a box in which message is displayed or a box from which input
Advertisements
Message Box Java
In this section we will create a message box in Java using a Java API class. A certain message, warning or information can be displayed in this message box. Generally the message box is used to display error message. JOptionPane class
In this section we will create a message box in Java using a Java API class. A certain message, warning or information can be displayed in this message box. Generally the message box is used to display error message. JOptionPane class
Show message and confirm dialog box
Show Message and Confirm Dialog Box - Swing Dialogs... types of message box. There are three types of message dialog box that you can.... Once you click on the first button then the simple message box will open which
Show Message and Confirm Dialog Box - Swing Dialogs... types of message box. There are three types of message dialog box that you can.... Once you click on the first button then the simple message box will open which
Show Dialog Box in Java
; Message dialog box is used to display informative... the message Dialog box. Our program display "Click Me" button on the window and when user clicks on it program displays Message box with "OK"
; Message dialog box is used to display informative... the message Dialog box. Our program display "Click Me" button on the window and when user clicks on it program displays Message box with "OK"
Flex Alert Box example
Flex Alert Box example Alert box is a dialog box that appears on window with some message and stays rigid until the event associated with it is not done. Alert
Flex Alert Box example Alert box is a dialog box that appears on window with some message and stays rigid until the event associated with it is not done. Alert
Java Alert Box
JOptionPane class to display the message alert box. JOptionPane class is available...Java Alert Box In this example we will describe java alert box. First of all we have created class than main method after that we have created alert box
JOptionPane class to display the message alert box. JOptionPane class is available...Java Alert Box In this example we will describe java alert box. First of all we have created class than main method after that we have created alert box
What is the difference between $message and $$message?
What is the difference between $message and $$message? What is the difference between $message and $$message
What is the difference between $message and $$message? What is the difference between $message and $$message
difference between $message and $$message
difference between $message and $$message What is the difference between $message and $$message? Hi friends, $message is a simple variable whereas $$message is a reference variable. Example: $name = 'Bharat
difference between $message and $$message What is the difference between $message and $$message? Hi friends, $message is a simple variable whereas $$message is a reference variable. Example: $name = 'Bharat
ModuleNotFoundError: No module named 'box-box'
ModuleNotFoundError: No module named 'box-box' Hi, My Python program is throwing following error: ModuleNotFoundError: No module named 'box-box' How to remove the ModuleNotFoundError: No module named 'box-box
ModuleNotFoundError: No module named 'box-box' Hi, My Python program is throwing following error: ModuleNotFoundError: No module named 'box-box' How to remove the ModuleNotFoundError: No module named 'box-box
ModuleNotFoundError: No module named 'box-box'
ModuleNotFoundError: No module named 'box-box' Hi, My Python program is throwing following error: ModuleNotFoundError: No module named 'box-box' How to remove the ModuleNotFoundError: No module named 'box-box
ModuleNotFoundError: No module named 'box-box' Hi, My Python program is throwing following error: ModuleNotFoundError: No module named 'box-box' How to remove the ModuleNotFoundError: No module named 'box-box
msg box in jsp
msg box in jsp i need the source code to display the msgbox in jsp....but one condition is,i need to use it in the current page itself...now i use the message box means it prints it into another page...i need to resolve it plz
msg box in jsp i need the source code to display the msgbox in jsp....but one condition is,i need to use it in the current page itself...now i use the message box means it prints it into another page...i need to resolve it plz
Popup dialog box in java
dialogs-user can customize dialog box. Here is a simple popup message dialog box...Popup dialog box in java How to display popup dialog box in java? Dialog Box- A dialog box is an independent small window which appear
dialogs-user can customize dialog box. Here is a simple popup message dialog box...Popup dialog box in java How to display popup dialog box in java? Dialog Box- A dialog box is an independent small window which appear
select box and text box validations
select box and text box validations hi, any one please tell me how to set validations for select box and text boxes using bean classes? thank you Please visit the following link: http://www.roseindia.net/jsp/user
select box and text box validations hi, any one please tell me how to set validations for select box and text boxes using bean classes? thank you Please visit the following link: http://www.roseindia.net/jsp/user
dropdown box
dropdown box i need to have country,state and city in drop down box using ajax and use db2 database Have a look at the following link: JSP dependent dropdown
dropdown box i need to have country,state and city in drop down box using ajax and use db2 database Have a look at the following link: JSP dependent dropdown
dialog box
dialog box to show latest question hello. write an application that displays a series of at least four interview questions and each question should... of the interview, use a dialog box to ask whether the user wants to - enter another set
dialog box to show latest question hello. write an application that displays a series of at least four interview questions and each question should... of the interview, use a dialog box to ask whether the user wants to - enter another set
dialog box
dialog box to ask to quit or continue hello. write an application that displays a series of at least four interview questions and each question... of the interview, use a dialog box to ask whether the user wants to - enter another set
dialog box to ask to quit or continue hello. write an application that displays a series of at least four interview questions and each question... of the interview, use a dialog box to ask whether the user wants to - enter another set
Objective C Message Passing
Objective C Message Passing What exactly a message passing means in Objective C? and how can i pass a message to a method
Objective C Message Passing What exactly a message passing means in Objective C? and how can i pass a message to a method
combo box
combo box Hi, [_|] dropdown box [ ] [INCLUDE... a screen like this using jsp-servlet(or DAO,DTO),in that drop down box i should get
combo box Hi, [_|] dropdown box [ ] [INCLUDE... a screen like this using jsp-servlet(or DAO,DTO),in that drop down box i should get
Message Context in AXIS
Message Context in AXIS Is there any method in Axis classes to het the size of IN and OUT Message Conetext
Message Context in AXIS Is there any method in Axis classes to het the size of IN and OUT Message Conetext
Javascript alert message
Javascript alert message How to send an alert message to a user in JavaScript
Javascript alert message How to send an alert message to a user in JavaScript
dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
dialog box hello. write an application that displays a series of at least four interview questions and each question should have at least three possible numeric choice answers. at the end of the interview, use a dialog box
how to create alert message after data submitted into database
how to create alert message after data submitted into database I want to create alert message box after data stored into database and redirect to another page, how to do
how to create alert message after data submitted into database I want to create alert message box after data stored into database and redirect to another page, how to do