Question

有人可以帮我写一个简单的java程序，可以打印出打印机的字符串。我在javaDocs网站上看到了一些例子，但是所有这些都很长，我甚至无法弄清楚要打印哪个字符串，因为按钮名称，方法名称等都是相同的。我不介意你添加或不添加GUI到程序，生病了（可能是但评论会有所帮助）我自己。附：我是指打印纸的打印机

感谢。

Answer 1

System.out.println（“Bill printing”）;

         FileInputStream imagestream=new FileInputStream("C:\\Users\\DELL\\Desktop\\DummyImage.jpg");
         DocFlavor doc=DocFlavor.INPUT_STREAM.JPEG;
         PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet(); 
         aset.add(new Copies(1)); 
         //aset.add(MediaSizeName.NA_5X7);
         aset.add(Sides.ONE_SIDED);
         aset.add(OrientationRequested.PORTRAIT);
         Doc document = new SimpleDoc(imagestream, doc, null);
        // DocPrintJob job = service.createPrintJob();

         PrintService[] services = PrintServiceLookup.lookupPrintServices(null, null);
         for (int i = 0; i < services.length; i++) {
            System.out.println(services[i].getName());
         }
             Media[] res1 = (Media[]) services[0].getSupportedAttributeValues(Media.class, null, null);
         for (Media media : res1) {
             if (media instanceof MediaSizeName) {
                 MediaSizeName msn = (MediaSizeName) media;
                 MediaSize ms = MediaSize.getMediaSizeForName(msn);
                 float width = ms.getX(MediaSize.INCH);
                 float height = ms.getY(MediaSize.INCH);
                 System.out.println(media + ": width = " + width + "; height = " + height);
             }
         }
        DocPrintJob job = services[4].createPrintJob();
        job.print(document, aset);

Answer 2

我知道这个问题已经有4年了，但也许有人会使用这个简单的解决方案：

String YourString = "first line \n second line \n etc.etc."; //define and set contents of your string - remember about formating with \n if you want to have it split on lines
JTextArea YourTextArea = new JTextArea(); //define new Swing JtextArea
YourTextArea.setLineWrap(true); //set line wrap for YourTextArea - this will prevent too long lines to be cut - they will be wrapaed to next line
YourTextArea.append(YourString); //append YourString to YourTextArea 
YourTextArea.print(); //this will display print dialog that will lead you to print contents of YourTextArea so in efect contents of YourString

使用Java将字符串打印到打印机

2 个答案: