java实现打印机_两台电脑怎么连接一台打印机

java实现打印机_两台电脑怎么连接一台打印机在 Java 中调用打印接口可以通过以下几种方法 使用 Java 打印 API javaimport java awt print PrinterJob public class PrinterTest public static void main String args PrinterJob printerJob PrinterJob getPrinterJo

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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