Unable To Fetch Data Into Database After Login Page
May 27, 2014
[public class Login
{
private String username;
private String password;
private String login_time;
private String logout_time;
private String status;
private String late;
[Code]...
but i am getting an error as but i am getting an error as
java.lang.NoSuchMethodException: com.tribro.chandu.Login.post();
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Aug 31, 2014
I am creating a small application.I have a jsp font page.i have a jdbc connection code.I have a sample table in my database.i want to retrieve datas from the database and display them in the view page.
My questions are:
-Where do i have to write jdbc code?
-How can i display the retrieved data in the display page?
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Jan 31, 2013
I'm creating a web applicaion. for that i want to create a registration page. and this registration details have to be stored in the database.
I'm getting the below error while trying to send the data ...
The requested resource (/cmd/InsertRegtodb) is not available.
Here cmd is project name and InsertRegtodb is servlet name.
Actually the servlet is present is the mentioned address. but it is not connecting to it
There is one more servlet in the same folder and which is accessible from another jsp. But this servlet is not accessible even though i have used same code as it is used for the servlet which worked for me previously...
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Jan 22, 2014
Problem code:
JSP 1:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@page import="java.sql.*;" %>
<%!Connection con;%>
<%!Statement stmt = null;%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "[URL]...">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
[Code]...
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Oct 6, 2014
I am trying to display a list fetched from DB in a JSP.
My servlet mapping is:
<servlet>
<description></description>
<display-name>DocumentsServlet</display-name>
<servlet-name>DocumentsServlet</servlet-name>
<servlet-class>com.xyz.servlet.DocumentsServlet</servlet-class>
[Code] ...
The code in the servlet is:
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
List<Doc> docs = null;
Connection con = null;
[Code] ....
The code in JSP is:
<%
List<WWDoc> completedDocsList = (List)request.getAttribute("completedDocs");
System.out.println("In JSP == "+completedDocsList.size());
%>
The request is not coming back to the JSP page.
If I change the servlet and have "request.getRequestDispatcher("/pages/ViewCompletedWWDocs.jsp").forward(request, response);" un commented, I get exception "java.lang.IllegalStateException: Cannot forward a response that is already committed".
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Dec 4, 2014
The program contains username and password which on submission checks with the database if the details entered are right or wrong....on right details it Displays Welcome (name) and (lastname) parameters from database.
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Mar 10, 2014
Today downloaded eclipse and for the database i installed MSSQL 2008 R2. I want to make a webpage where i started with the login credentials, how to make a webpage for the login credentials?
I need two boxes
ID:
Password:
[Submit Button]
how to make a webpage and how can i run locally should i install IIS?
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Mar 8, 2014
I have created a jsp page named Login.jsp, here's the followings code:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<link type="text/css" rel="stylesheet" href="inc/style.css" >
[Code] ....
Is that the structure of my page is correct? I create a new folder below WebContent in my project, named "authentication" and i placed below home.jsp. This page will display, if the login and password is correct.
Also, i change some thing in web.xml of project :
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>authentication</display-name>
[Code] ...
When i enter "http://localhost:8080/Gestion_de_stock/authentication/home.jsp" many problem appears :
Firstly, the login page doesn't display with the style that i made in a css file "style.css"
Also, when i enter a correct login and password an error page display and a url i don't know where it comes from [URL] .....
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Jun 25, 2014
I am developing my college's project in JSP using jquery to open a magnific popup when user clicks on a link and the in the magnific Popup must be fetched from Mysql and i tried two approaches for this:
1. magnific Popup type is ajax here i passed the variable value in the link of href (after '?') to another JSP page where connection to database is created and queries are written in JSTL to fetch data and show this in magnific Popup .. But i failed in this approach, don't know in another JSP page the data without having database connection is loaded in the magnific Popup easily but not database data..
2. magnific Popup type inline here i need to pass the variable value in the same page between different tags..
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Jul 20, 2014
I have write a SSO class for Single Sign on But i am getting one issue i am using JSF2 for my web application...here is my SSO class :
public class ApplicationSSO implements SSO {
public String authenticateUser(RequestContext request) {
UmUsersList user = (UmUsersList) request.getSessionContext().getAttribute("USER");
return user.getUmulEmailId();
}
[Code] .....
As you can see i have write below line
JSFUtils.redirectPage("../login/Login.xhtml");
It mean if User null it will redirect to Login page but it is not working. How to solve the issue i am end up with
An error has occurred.
For detailed error information, please see the HTML source code, and contact the forum Administrator.
Error while executing SSO actions: java.lang.NullPointerException
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Mar 25, 2014
Code for login page by java and how we can implement it.
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Aug 3, 2014
Below is my java coding that i have done, but how to save the password after key in the user id and the password. And I also need the system able to unsave the password if the user choose to unsave it .
import java.util.Scanner;
public class Home {
private static Scanner sc;
public Scanner readPass;
static String savedName="";
static String savedPass="";
public static void main (String []args)
[Code] .....
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Nov 5, 2014
There are two designation named admin and student. I just need to work in coding to open specific page by email of person like done in facebook or any other mail account.
well one thing I have done is that I have matched email,password and type(designation) in my servlet page to database and the program run and also open the page.If email,pass,type matched witn admin than admin.jsp opens up else student.jsp.But but I wants to open the specific pafe by email that shows the profile of logged in user like in facebook it opens.
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Apr 13, 2014
// MY login.jsp class
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<jsp:useBean id="person" scope = "request" class = "com.za.tutotial.mvc.PersonBeanModel"/>
[Code] ....
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May 15, 2014
I put link using JQuery on Home Page,
<div class="list_block1" >
script type="text/javascript" src="js/jquery.leanModal.min.js"></script>
<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css" />
<link type="text/css" rel="stylesheet" href="css/style.css" />
<link rel="stylesheet" type="text/css" href="css/postoffer.css" media="all"/>
<div class="container">
<a id="modal_trigger" href="#modal" class="btn">Click here to Login or register</a>
<%
[Code] ....
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Jan 31, 2014
Recently we got an issue about file download. We are using below code to fetch the data from backend(DB2) and export to excel.
Before Jan 15 it use to take 2 minutes to download the file (2 MB size). But now its taking half an hour to download.
response.setContentType("application/vnd.ms-excel");
response.setHeader("content-disposition","attachment; filename=Attendance_Report.xls");
We have restarted server, system but still problem exists. We found that there is no code level or data base level or network level issues.
Now we have to see server level issue. What are the factors which effects the file downloading at server level.
We are using websphere 6.1 ,java1.4
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Jun 2, 2014
I want to implement a 'Keep me signed in' option in the login page of an application. I have noticed this option is present in the form of a checkbox on the login page of many websites but i don't know how it can be coded . When selected, a user is no longer asked for his username and password on subsequent sessions but he is automatically given access.
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Sep 3, 2014
how can i stop this loop(while (res.next() )
example: i hava a table conex wich i inser on it two columns name and password i fill it by
name : yosra password : lol
name : najeh password :mdr
i don't know when i fill jTextfield of password and name correctly for ewp i put yosra as name and password as lol the loop continue to the next row and i show the two message dialog on netbeans about correct acces and refused access and the frame of my chatroom is opened
private void jButton1MouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
String pass=new String(this.pass.getPassword());
String nam=this.name.getText();
acceder(nam,pass);
[code]....
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Apr 22, 2014
i have build an login form with which a user can login to see next form ,login form is working perfectly but whenever a user enters a wrong userid and clicks on login then nothing happens,i want that there a popup will be called and say wrong userid...
However when a user enters correct userid and wrong password then the popup is working but not when the user id itself wrong...
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Sep 29, 2014
I want to send user back to the Login page after idle time of 10 secs. If user clicks again on screen before 10 secs are over, time will automatically reset to new 10 sec and so on...
I want to use the same timeout on multiple pages.
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Sep 3, 2014
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 ....
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
try {
state=conn.createStatement();
res=state.executeQuery("select*from conex");
String pass=new String(this.pass.getPassword());
String name=this.name.getText();
[Code] .....
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Jun 6, 2014
So I'm trying to create a simple user database that I could eventually turn into a login system. I created a simple table on MySQL with a name and address for the sake of simplicity. I tried to create simple statement inside my main method that would connect to my MySQL server and when I run my program I get a ClassNotFoundException from "org.gjt.mm.mysql.Driver"..Here is what I have in my main method thus far:
public static void main(String args[]) {
try {
Class.forName("org.gjt.mm.mysql.Driver"); //Load the driver
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/data", "root", ""); //Connect
/*
conn.createStatement().execute("CREATE TABLE people (" + "id int(64) NOT NULL AUTO_INCREMENT," + "name varchar(255) NOT NULL," + "address varchar(255) NOT NULL," + "UNIQUE (id)," + "FULLTEXT(name, address))");
[code]....
I downloaded Connector/J in the the binary .zip form and extracted it to my C: drive and put the .jar file into my java directories lib folder. I also added the directory of the .jar file into my CLASSPATH and I still get the exception.
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Aug 4, 2014
I am getting data from user and checking it with database (MS SQL ) if it fits it is switching to new window. In new window I need to use again my database so I need to add connecting data again. I would like to get them from login window. How to do that? I know theory but when I am writing code nothing works. Here is working code for login panel :
/*import java.awt.BorderLayout;
import javax.swing.*;
public class Login extends JFrame {
[Code].....
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Aug 4, 2014
I am getting datas from user and checking it with database (MS SQL ) if it fits it is sweatching to new window. In new window I need to use again my database so I need to add connecting datas again. I would like to get them from login window. How to do that? I know theory but when I am writting code nothing works. Here is working code for login panel :
/*import java.awt.BorderLayout;
import javax.swing.*;
public class Login extends JFrame {
public String url;
public static void main(String[] args) {
Log frameTabel = new Log();
[Code] .....
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Aug 12, 2014
I am trying to pass values from JSP Page to Servlets but I am getting a NullPointerException
Here is my JSP code
<html>
<head>
<title>Student Registration Form</title>
<style type="text/css">
h3{font-family: Calibri; font-size: 22pt; font-style: normal; font-weight: bold; color:SlateBlue;
text-align: center; text-decoration: underline }
table{font-family: Calibri; color:white; font-size: 11pt; font-style: normal;
[Code]...
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Dec 31, 2014
I have a vps set up to running a MySQL database already by zpanel but when I try to connect to the database with Java I am unable to connect and receive the message:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server."
I have MySQL Connector(dev.mysql.com/downloads/connector/j) already added to my build and tried it with both the url and the ip. This is my connection code:
package net;
import java.sql.*;
import javax.swing.JOptionPane;
public class LoginDatabaseConnection {
Connection conn = null;
[Code] ....
The code is from youtube but when I connect to localhost it works fine however when I try to connect to the VPS the above error happens.
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