java调用打印机接口
1、新建一个窗口类，并实现Printable接口。本文以一条数据为例
2、实现Printable接口的print方法，使用Graphics2D相关绘制出打印的格式图片。
3、使用PrinterJob开启打印进程，导出打印相关的pdf文件
4、导出后的文件如图所示
5、全部代码：
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;
public class Frame extends JFrame implements Printable,
ActionListener {
private Object[][] data = {{"100", "0.8", "0.1", "90"}};
//JTableb表头
private Object[] head = {"单价", "折扣", "税", "调整后价"};
//定义一个存放数据的JTable
private JTable table = new JTable(data, head);
//打印出一条记录的按钮
private JButton printBtn = new JButton("打印");
private JScrollPane scrollPane = new JScrollPane(table);
//设置窗口的信息，添加各种面板按钮，及初始化按钮的监听器。
public Frame() {
setSize(800, 600); //设置窗体大小位置
add(printBtn, BorderLayout.NORTH);
add(scrollPane, BorderLayout.CENTER);
printBtn.addActionListener(this);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
//获取打印服务对象
PrinterJob job = PrinterJob.getPrinterJob();
job.setPrintable(Frame.this); //添加打印任务
try {
job.print(); //执行打印任务
} catch (PrinterException e1) {
e1.printStackTrace();
}
JOptionPane.showMessageDialog(this,
"导出打印pdf文件成功");
}
@Override
public int print(Graphics graphics, PageFormat pageFormat,
int pageIndex)
throws PrinterException {
Graphics2D g = (Graphics2D) graphics;
int x = (int)pageFormat.getImageableX();
int y = (int)pageFormat.getImageableY();
switch(pageIndex){
case 0:
g.setColor(Color.RED);
g.drawString("单价：" + table.getValueAt(0, 0), x + 100, y + 10);
g.drawString("折扣：" + table.getValueAt(0, 1), x + 100, y + 30);
g.drawString("税率：" + table.getValueAt(0, 2), x + 100, y + 50);
g.drawString("单价：" + table.getValueAt(0, 3), x + 100, y + 70);
return PAGE_EXISTS;
default:
return NO_SUCH_PAGE;
}
}
public static void main(String[] args) {
new Frame();
}
}