Java調用打印機的步驟是怎樣的？動力節點小編來告訴大家。

Java調用打印機的步驟

1.獲取PrinterJob

一般都用PrinterJob.lookupPrintServices()來獲取本地配置的打印機列表

    public static PrinterJob getPrintServiceByName(String printerName) throws Exception{
        PrinterJob job = PrinterJob.getPrinterJob();
        // 遍歷查詢打印機名稱
        boolean flag = false;
        for (PrintService ps : PrinterJob.lookupPrintServices()) {
            String psName = ps.toString();
            // 選用指定打印機，需要精確查詢打印機就用equals，模糊查詢用contains
            if (psName.contains(printerName)) {
                flag = true;
                job.setPrintService(ps);
                break;
            }
        }
        if(!flag){
            throw new RuntimeException("打印失敗，未找到名稱為" + printerName + "的打印機，請檢查。");
        }
        return job;
    }

2.設置PrinterJob紙張樣式

    public static void setPageStyle(PDDocument document, PrinterJob job) {
        job.setPageable(new PDFPageable(document));
        Paper paper = new Paper();
        int width = 215;
        int height = 170;
        // 設置打印紙張大小
        paper.setSize(width,height); // 1/72 inch
        // 設置邊距，單位是像素，10mm邊距，對應 28px
        int marginLeft = 1;
        int marginRight = 0;
        int marginTop = 10;
        int marginBottom = 0;
        // 設置打印位置 坐標
        paper.setImageableArea(marginLeft, marginRight, width - (marginLeft + marginRight), height - (marginTop + marginBottom));
        // custom page format
        PageFormat pageFormat = new PageFormat();
        pageFormat.setPaper(paper);
        // override the page format
        Book book = new Book();
        // append all pages 設置一些屬性 是否縮放 打印張數等
        book.append(new PDFPrintable(document, Scaling.ACTUAL_SIZE), pageFormat, 1);
        job.setPageable(book);
    }

3.打印PDF

	public static PDDocument printPdf(String pdfPath, String printerName) throws Exception {
        File file = new File(pdfPath);
        PDDocument document = PDDocument.load(file);
        PrinterJob job = getPrintServiceByName(printerName);
        setPageStyle(document, job);
        // 開始打印
        job.print();
        return document;
    }