在Java中调用打印接口可以通过以下几种方法:
使用Java打印API
import java.awt.print.PrinterJob;
public class PrinterTest {
public static void main(String[] args) {
PrinterJob printerJob = PrinterJob.getPrinterJob();
printerJob.setPrintable(new Printable() {
@Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
if (pageIndex > 0) {
return NO_SUCH_PAGE;
}
graphics.drawString("Hello, World!", 100, 100);
return PAGE_EXISTS;
}
});
if (printerJob.printDialog()) {
try {
printerJob.print();
} catch (PrinterException e) {
e.printStackTrace();
}
}
}
}
使用AWT和Swing
import java.awt.print.PrinterJob;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.PrinterName;
public class PrintTemplateExample {
public static void main(String[] args) {
PrinterJob printerJob = PrinterJob.getPrinterJob();
PrintRequestAttributeSet attributes = new HashPrintRequestAttributeSet();
attributes.add(new PrinterName("Printer Name", null));
if (printerJob.printDialog(attributes)) {
try {
printerJob.print();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
使用第三方库 (例如Apache PDFBox或iText):
// 使用Apache PDFBox打印PDF文件
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.common.PDRectangle;
import org.apache.pdfbox.pdmodel.font.PDType1Font;
import java.io.File;
public class PDFBoxExample {
public static void main(String[] args) {
try {
PDDocument document = new PDDocument();
PDPage page = new PDPage(PDRectangle.A4);
document.addPage(page);
PDPageContentStream contentStream = new PDPageContentStream(document, page);
contentStream.setFont(PDType1Font.HELVETICA, 12);
contentStream.beginText();
contentStream.newLineAtOffset(100, 720);
contentStream.showText("Hello, World!");
contentStream.endText();
contentStream.close();
document.save("output.pdf");
document.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
打印图片
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.MediaSizeName;
import javax.print.attribute.standard.OrientationRequested;
import java.awt.print.PrinterJob;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
public class PrintImage {
public static void main(String[] args) {
String imagePath = "path/to/your/image.jpg";
try {
PrinterJob printerJob = PrinterJob.getPrinterJob();
PrintRequestAttributeSet attributes = new HashPrintRequestAttributeSet();
attributes.add(MediaSizeName.ISO_A4);
attributes.add(OrientationRequested.PORTRAIT);
if (printerJob.printDialog(attributes)) {
try {
FileInputStream fis = new FileInputStream(new File(imagePath));
printerJob.setPrintable(new ImagePrintable(fis));
printerJob.print();
fis.close();
} catch (Exception e) {
e.printStackTrace();
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
以上示例展示了如何使用Java打印API、
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