Java调用打印机两种方式（无驱/有驱）

一：无驱（通过ip连接打印机）

        String filePath = "D:\\file.pdf"; //需要打印的文件        String ip = "192.168.2.240"; //打印机ip        Integer port = 9100; // 打印机端口        Integer timeout = 3000; //连接超时时间        File file = new File(filePath);         Socket socket = new Socket();         try {            socket.connect(new InetSocketAddress(ip,port), timeout);            OutputStream out = socket.getOutputStream();            FileInputStream fis = new FileInputStream(file);            System.out.println(file.length());            //建立数组            byte[] buf = new byte[1024];            int len = 0;            //判断是否读到文件末尾            while((len = fis.read(buf)) != -1)            {                out.write(buf, 0, len);            }            //告诉服务端，文件已传输完毕            socket.shutdownOutput();            socket.close();            fis.close();        } catch (ioException | InterruptedException e) {            e.printStackTrace();        }

二：有驱（使用电脑自带驱动连接打印机） 

添加依赖

                    org.apache.pdfbox            pdfbox            2.0.8        

        String filePath = "D:\\file.pdf"; //需要打印的文件        File file = new File(filePath);         int pageCount = 0;        String printName = "Win32 Printer : HP LaserJet Pro M428f-M429f [F097F8]";        PrinterJob job = PrinterJob.getPrinterJob();        // 遍历所有打印机的名称        for (PrintService ps : PrinterJob.lookupPrintServices()) {            String psName = ps.toString();            // 选用指定打印机            if (psName.equals(printName)) {                job.setPrintService(ps);                break;            }        }        // 读取pdf文件        PDDocument document = null;        try {            document = PDDocument.load(file);            pageCount = document.getNumberOfPages();        } catch (IOException e) {            e.printStackTrace();        }        job.setPageable(new PDFPageable(document));        Paper paper = new Paper();        // 设置打印纸张大小        paper.setSize(598,842); // 1/72 inch        // 设置打印位置 坐标        paper.setImageableArea(0, 0, paper.getWidth(), paper.getHeight()); // no margins        // custom page fORMat        PageFormat pageFormat = new PageFormat();        pageFormat.setPaper(paper);        // override the page format        Book book = new Book();        // append all pages 设置一些属性 是否缩放 打印张数等        book.append(new PDFPrintable(document, Scaling.ACTUAL_SIZE), pageFormat, pageCount);        job.setPageable(book);        // 开始打印        job.print();        //创建打印任务        document.close();

来源地址：https://blog.csdn.net/qq_63312957/article/details/132471563