How to use methods from a JAR file inside my springcontext (Oracle fusion 12c) class file?
Dear Friends,
I have a jar file, which has executed classes and methods in it. I want to make use of these methods inside my springcontext piece of code.
Can someone please share an example of how to write spingcontext code which is accessing classes/methods from JAR files along with the any setup?
Thanks,
I have found the answer... as described in:
http://java.sun.com/javase/6/docs/technotes/guides/lang/resources.html
the problem was that the properties are loaded with the getResource & getResourceAsStream methods and I didn't know that one. I thought that is was loaded through findClass because I saw the property files trying to be loaded through findClass.
The truth is that it tries to load with the getRessources methods and if it fails tries with the findClass/loadClass.
To Fix the problem, I have simply overriden the getRessourceAsStream to do my magic and that was it.
Thanks
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Aloha,
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public class ChoiceFrame extends JFrame implements ActionListener
{ // [1]
SolveIt converter = new SolveIt();
public static final int WIDTH = 650;
public static final int HEIGHT = 500;
private JTextArea infoText;
private double valueIn = 0;
private double valueIn2 = 0;
private JTextField cliffHt;
private JTextField deceleration;
private JTextField timeFlight;
private JTextField height;
public static void main(String[] args)
{ // [2]
ChoiceFrame myWindow = new ChoiceFrame();
myWindow.setVisible(true);
} // [2]
public ChoiceFrame()
{ // [3]
super( );
setSize(WIDTH, HEIGHT);
setTitle("ChoiceFrame");
Container contentPane = getContentPane();
contentPane.setBackground(Color.BLUE);
contentPane.setLayout(new BorderLayout());
addWindowListener(new WindowDestroyer());
JMenu memoMenu = new JMenu("File");
JMenuItem file;
file = new JMenuItem("Clear");
file.addActionListener(this);
memoMenu.add(file);
file = new JMenuItem("Exit");
file.addActionListener(this);
memoMenu.add(file);
JMenuBar mBar = new JMenuBar( );
mBar.add(memoMenu);
setJMenuBar(mBar);
JPanel northPanel = new JPanel();
northPanel.setLayout(new BorderLayout());
JPanel textPanel = new JPanel();
northPanel.add(textPanel, BorderLayout.WEST);
infoText = new JTextArea (8, 43);
infoText.setBackground(Color.WHITE);
infoText.setLineWrap(true);
textPanel.add(infoText);
infoText.setText("The Coyote, in his relentless attempt to catch the elusive Road Runner,\nloses his footing and falls from a sheer cliff ___ meters above the ground.\nAfter falling for __ seconds (without friction), the Coyote remembers that\nhe is wearing his Acme rocket-powered backpack, which he immediately turns on.\nThe Coyote makes a gentle landing (zero velocity) on the ground below,\nbut is unable to turn off the rocket, and is immediately propelled back up into the air.\n___ seconds after leaving the ground, the rocket runs out of fuel.\nAfter continuing upwards for a ways, the poor Coyote plunges back to the ground.");
JPanel inputPanel = new JPanel();
northPanel.add(inputPanel, BorderLayout.EAST);
inputPanel.setLayout(new GridLayout(3,2));
cliffHt = new JTextField(5);
inputPanel.add(cliffHt);
JLabel mtrsLabel = new JLabel("meters");
inputPanel.add(mtrsLabel);
JTextField secondsf = new JTextField(5);
inputPanel.add(secondsf);
JLabel sfLabel = new JLabel("seconds falling");
inputPanel.add(sfLabel);
timeFlight = new JTextField(5);
inputPanel.add(timeFlight);
JLabel sFlightLabel = new JLabel("seconds in flight");
inputPanel.add(sFlightLabel);
JPanel southPanel = new JPanel();
southPanel.setLayout(new BorderLayout());
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout());
JButton calcButton = new JButton("Calculate");
calcButton.addActionListener(this);
buttonPanel.add(calcButton);
southPanel.add(buttonPanel, BorderLayout.NORTH);
JPanel outputPanel = new JPanel();
outputPanel.setLayout(new GridLayout(3,2));
JLabel decelLabel = new JLabel("With the rocket backpack turned on, the deceleration is: ");
outputPanel.add(decelLabel);
deceleration = new JTextField(10);
outputPanel.add(deceleration);
JLabel htLabel = new JLabel("the max height is: ");
outputPanel.add(htLabel);
height = new JTextField(10);
outputPanel.add(height);
JLabel vLabel = new JLabel("the velocity is: ");
outputPanel.add(vLabel);
JTextField velocity = new JTextField(10);
outputPanel.add(velocity);
southPanel.add(outputPanel, BorderLayout.CENTER);
contentPane.add(northPanel, BorderLayout.NORTH);
contentPane.add(southPanel, BorderLayout.CENTER);
} // [3]
public void actionPerformed(ActionEvent e)
{ // [20]
String actionCommand = e.getActionCommand();
if (e.getActionCommand().equals("Calculate"))
deceleration.setText(Quiz1());
height.setText(Quiz1());
else if (e.getActionCommand().equals("Close"))
System.exit(0);
else if (actionCommand.equals("Exit"))
System.exit(0);
} //[20]
private String Quiz1()
{ // [40]
SolveIt calculate = new SolveIt();
double gravity = 9.81;
double initialSpeed = 0;
double freeFall = 5; //this is time for freefall in seconds
valueIn = stringToDouble(cliffHt.getText());
return Double.toString(valueIn);
valueIn2 = stringToDouble(timeFlight.getText());
return Double.toString(valueIn2);
} // [40]
private static double stringToDouble(String stringObject)
{ // [30]
return Double.parseDouble(stringObject.trim());
} // [30]
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