Yuta Lolap

Hi All,

I have a basic layout of Model, View & Controller classes. I don't know how to pass the control from the View, to the Controller after setting the username and password in the Model. I want to pass the model which i have set using username and password to an authenticate method in controller. Cant figure it out.

Also, I want to have four different methods in controller
Method 1 - authenticate
Method 2 - Add
Method 2 - Delete
Method 3 - Update

Please do let me know!

Thanks in advance!

View


package com.caveofprogramming.designpatterns.demo1.view; import javax.swing.JFrame; import com.caveofprogramming.designpatterns.demo1.MODEL.Model; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JPasswordField; import javax.swing.JTextField; public class View extends JFrame { private Model model; JTextField userText = new JTextField(20); JPasswordField passwordText = new JPasswordField(20); public View(Model model) { super("MVC Demo"); this.model = model; JPanel panel=new JPanel(); panel.setLayout(null); JLabel userLabel = new JLabel("User"); userLabel.setBounds(10, 10, 80, 25); panel.add(userLabel); userText.setBounds(100, 10, 160, 25); panel.add(userText); JLabel passwordLabel = new JLabel("Password"); passwordLabel.setBounds(10, 40, 80, 25); panel.add(passwordLabel); passwordText.setBounds(100, 40, 160, 25); panel.add(passwordText); JButton loginButton = new JButton("login"); loginButton.setBounds(10, 80, 80, 25); panel.add(loginButton); JButton registerButton = new JButton("register"); registerButton.setBounds(180, 80, 80, 25); panel.add(registerButton); this.add(panel); this.setSize(300, 150); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setVisible(true); loginButton.addActionListener(new ActionListener(){ @Override public void actionPerformed(ActionEvent e) { // throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. Model loginModel = getModel(); loginModel.setPassword(passwordText.getText()); loginModel.setUsername(userText.getText()); } }); } public Model getModel() { return model; } }

Model

package com.caveofprogramming.designpatterns.demo1.MODEL; public class Model { String username; String password; public String getUsername() { return username; } public String getPassword() { return password; } public void setUsername(String username) { this.username = username; } public void setPassword(String password) { this.password = password; } }

Controller

package com.caveofprogramming.designpatterns.demo1.controller; import com.caveofprogramming.designpatterns.demo1.MODEL.Model; import com.caveofprogramming.designpatterns.demo1.view.View; public class Controller { private View view; private Model model; public Controller(View view, Model model) { this.view = view; this.model = model; } }

Application
import javax.swing.SwingUtilities; import com.caveofprogramming.designpatterns.demo1.controller.Controller; import com.caveofprogramming.designpatterns.demo1.MODEL.Model; import com.caveofprogramming.designpatterns.demo1.view.View; public class Application { public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { runApp(); } }); } public static void runApp() { Model model = new Model(); View view = new View(model); Controller controller = new Controller(view, model); } }

Hi All,

I have to prepare a research paper on any topic in Software Testing, Please suggest some hot topics that i can work on!

Thanks in advance!

Kind Regards,
Ms. Yuta Lolap.

Hi All,

Following is the code in my connectivity.php file.

Its gives the following error even when i am passing the connection object to mysqlli_query(). Please can you guys help me out as to why it is throwing this error even when i am able to successfully connect to the database.


( ! ) Warning: mysqli_query() expects parameter 1 to be mysqli, null given in C:\wamp\www\GUI_Version3\connectivity.php on line 32



<?php $mysql_hostname = "localhost"; $mysql_user = "kar"; $mysql_password = "karan"; $mysql_database = "hrms"; $tbl_prefix = "hrms_"; print $mysql_hostname ; print $mysql_user ; print $mysql_password ; print $mysql_database; print $tbl_prefix ; $con=mysqli_connect($mysql_hostname, $mysql_user, $mysql_password,$mysql_database) or die("Failed to connect to MySQL: " . mysqli_error($con)); print $mysql_database; //connecting to db $db=mysqli_select_db($con,$mysql_database) or die("Failed to connect to Database: " . mysqli_error($con)); function SignIn() { //session_start(); //starting the session for user profile page if(!empty($_POST['username'])) //checking the 'user' name which is from Sign-In.html, is it empty or have some text { $sql = "SELECT * FROM hrms_employee where emp_username = '$_POST[username]' AND emp_password = '$_POST[password]'"; print $sql; $resulr = mysqli_query($con,$sql); //$result = mysqli_query($con,$sql); /*$row = mysqli_fetch_array($result) or die("issue fetching array" . mysqli_error($con)); echo "ok"; if(!empty($row['userName']) AND !empty($row['pass'])) { $_SESSION['userName'] = $row['pass']; echo "SUCCESSFULLY LOGIN TO USER PROFILE PAGE..."; } else { echo "SORRY... YOU ENTERD WRONG ID AND PASSWORD... PLEASE RETRY..."; } */ } print $_POST['username']; mysqli_close($con); } if(isset($_POST['submit'])) { SignIn(); } ?>

The html form for this is as follows.

<form action="connectivity.php" method="POST"> <div id="login-panel"> <table class="johnCreate"> <tr><td>Username</td><td><input type="text" id="username" name="username"></td></tr> <tr><td>Password</td><td><input type="password" id="password" name="password"></td><tr> <tr><td colspan="2"><input name="submit" type="submit" value="Login" /></td></tr> </table>


Thanks in Advance,
Ms. Yuta Lolap.

Hi all,

Following is the code on the click of a button, id like to know how do i close the current jframe on which the jButton4 is currently placed. I know how to send it to the next Jframe i.e JobCard. But need to close the current one. I tried using this.setVisible(true); But it does not work.


private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) { // TODO add your handling code here: this.setVisible(false); JobCard jobCard = new JobCard(); jobCard.setVisible(true); }

Thank You.
Regards,
Yuta Lolap.

I Got it! I had added the folder earlier , i am using Netbeans IDE. Now , added it directly as a jar! Works fine! Thanks for replying!

Hi all,


I am writing a basic connectivity ode to connect to mysql . I have installed wamp on my laptop. Database name is hrms. Following is a simple jdbc connect code i am calling on the click a button in Jframe. Facing the following exception in the db string. Please can you tell me where i am going wrong?

Also, do i have to mention the port no like 8080 in the connection string after localhost?





System.out.println("entered the click event!"); try{ String employeeId=null; String password=null; Connection conn = null; Statement stmt = null; employeeId=jTextField1.getText(); password=jPasswordField1.getText(); System.out.println(employeeId); System.out.println(password); //new HomePage().setVisible(true); Class.forName("com.mysql.jdbc.Driver"); System.out.println("before connection"); conn =DriverManager.getConnection("jdbc:mysql://localhost/hrms","root","root"); stmt =(Statement) conn.createStatement(); String query ="select password from employee where emp_id"+employeeId; JOptionPane.showMessageDialog(null, "connection set"); ResultSet rs = stmt.executeQuery(query); System.out.println("obtained rs"); // JOptionPane.showMessageDialog(null, "connection set"); while(rs.next()) { if(password.equals(rs.getString(0))){ // options op=new options(); new HomePage().setVisible(true); // op.setVisible(true); }else{ // JOptionPane.showMessageDialog(null,"Enter correct username and password!!!"); } } }catch(Exception e){ e.printStackTrace(); }finally{ }


Entered the click event!
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java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:190)
at hrms.Login.jButton1ActionPerformed(Login.java:103)
at hrms.Login.access$000(Login.java:17)
at hrms.Login$1.actionPerformed(Login.java:50)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6516)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
at java.awt.Component.processEvent(Component.java:6281)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4872)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4698)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4698)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
BUILD SUCCESSFUL (total time: 9 seconds)


Thank you.
Regards,
Ms. Yuta Lolap.

Oh okay! Thanks a lot Bear!

Sahil Thadhani wrote:You can also see if you have included web and web-mvc jar of springs. They also need to be checked. You can also refer to the classpath and see if all the jars are getting picked up. Placing the two files in WEB-INF usually does not create problem.

All the jars are getting picked up!

Bill Gorder wrote:web.xml should be directly under WEB-INF.
/

It is under WEB-INF i want to learn the basic setup without maven.

Prajakta i checked the tomcat installation folder. Yes i am using eclipse. Yes the jars are under the lib folder too.

Eclipse editor. My bad. I have included the the script tag in a jsp file.

<%@ 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"> <title>Insert title here</title> <script type="text/javascript" src="../js/jquery-1.10.1.js"></script> <script type="text/javascript" src="../js/jquery-1.9.1.js"></script> <script type="text/javascript" src="../js/jquery-1.4.2.min.js"></script> <script type="text/javascript" src="../js/jquery.tmpl.min.js"></script> <script id="testTemplate" type="text/x-jquery-tmpl"> <tr> <td>$(name)<td> <td>$(id)</td> <td>$(productfamily)</td> <td>$(sku)</td> <td>$(ato)</td> <td>$(class1)</td> </tr> </script> <script> $(document).ready(function(){ var data=[{name:"item1", id:"1", productfamily:"1700",sku:"4521YOER", ato:"POWER_SUPPLY", class1:"CARDS"}]; $("#testTemplate").tmpl(data).appendTo("#testData"); }); </script> </head> <body> <table> <tbody id='testData'></tbody> </table> </body> </html>






I am trying to add an ID field to the script tag. But it is giving an error Undefined Attribute Error.

Hi, Where should the web.xml and the mvc-dispatcher-servlet.xml be placed exactly in the project structure? Should it be in WEB-INF directly or some place else?

Also i am getting ClassNotFoundException for DispatcherServlet when i am trying to render the jsp. I have loaded all the jars that are required.

The web.xml and spring-servlet.xml are inside WEB_CONTENT/WEB-INF .

Please can you tell me as to why this exception would occur?

That was wrong. No such think as FlDatatype. My Bad.

Its a hyperlink that is created to edit a comment which is made in the Jtemplate which rendered after an ajax call is made to get some json data to populate the Jtemplate.

If we remove the "javascript://" it doesnt work like a href.