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Automatic Selection of Printer not working

1 reply on 1 page. Most recent reply: Nov 3, 2003 2:10 PM by David

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Suresh Babu

Posts: 2
Nickname: sureshbvs
Registered: Nov, 2003

Automatic Selection of Printer not working

Posted: Nov 3, 2003 1:48 AM

According to the instructions that I got from some experts earlier, I tried to develop a class file for sending a print option to a particular printer without prompting for selection of printer. But when I try to press PRINT button an exception is coming and the print out is not appearing. Please go through the program and suggest a better solution. My aim is : There are 2-3 printers attached to a particular PC and a particular report print should go to a particular printer without a print dialog box.

/************************************/
// TestReport.java
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.print.*;
import java.io.Serializable;
import javax.swing.JEditorPane;
import javax.swing.RepaintManager;
import javax.swing.text.html.*;
import java.text.*;
import java.util.Date;
import java.util.Calendar;
import java.io.*;
import java.util.Iterator;
import javax.imageio.*;
import javax.imageio.stream.ImageInputStream;
import javax.print.*;
import javax.print.attribute.HashDocAttributeSet;
import javax.print.attribute.HashPrintRequestAttributeSet;
import java.awt.image.BufferedImage;
import java.awt.print.*;

public class TestReport extends JFrame implements ActionListener
{
JPrintableEditPane jtp;
Container content;
Date d1,date;
Calendar calendar;
int day,month,year;
JButton printButton, exit;
String str, str1;
public TestReport()
{
setSize(800,550);
calendar=Calendar.getInstance();
day = calendar.get(Calendar.DATE) ;
month= calendar.get(Calendar.MONTH)+1 ;
year = calendar.get(Calendar.YEAR);
String todate=year+"-"+month+"-"+day;
str="";
str=str+"<HTML><HEAD></HE AD><BODY bgColor=white>";
str=str+"Suresh Babu V. S ";
str=str+"Trivandrum, India";
str=str+"</body></html>";
try
{
File Writer f1=new FileWriter("c:\\IO.html"); //Open IO.html file for writing
for (int i=0;i<str.length();++i)
f1.write(str.charAt(i)); f1.close();
}
catch(Exception e)
{System.out.println("Error in writing file"); }
content = getContentPane();
printButton = new JButton("Print");
exit = new JButton ("Close");
printButton.addActionListener(this);
exit.addActionListener(this);
J Panel buttonPanel = new JPanel();
buttonPanel.setBackground(Color.white);
buttonPanel.add(printButton);
buttonPanel.add(exit);
content.add(buttonPanel, BorderLayout.SOUTH);
jtp = new JPrintableEditPane();
jtp.setEditorKit(new HTMLEditorKit());

try{
jtp.setPage("file:///c:\\IO.html");
jtp.setEditable(false);
JScrollPane editorScrollPane = new JScrollPane(jtp);
editorScrollPane.setVerticalScrollBarPolicy(
JScrollPane.VERT ICAL_SCROLLBAR_ALWAYS);
editorScrollPane.setPreferredSize(new Dimension(250, 145));
content.add(editorScrollPane, BorderLayout.CENTER);
}
catch(IOException e){
System.out.println("Print Error : "+e);
}
setVisible(true);
}

public void actionPerformed(ActionEvent event) {
if (event.getSource()==printButton)
{
DocFlavor flavor = null;//or the flavor you need
HashPrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
PrintService printServices[] =
PrintServiceLookup.lookupPrintServices(flavor, null);
for (int i=0;i<4;i++)
System.out.println(printServices);
DocPrintJob job = printServices[1].createPrintJob();
Doc doc = new SimpleDoc(jtp, flavor, new HashDocAttributeSet());
try {
job.print(doc, pras);
} catch (PrintException ex) {
ex.printStackTrace();
}
}
this.hide();
}
public static void main(String args[])
{
TestReport tr=new TestReport();
}
}

// END OF PROGRAM

David

Posts: 150
Nickname: archangel
Registered: Jul, 2003

Re: Automatic Selection of Printer not working

Posted: Nov 3, 2003 2:10 PM

It helps if you post the complete stack trace of the Exception you received.

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