打印字符串到打印機使用Java

Question

有人可以幫助我編寫一個簡單的java程序，可以從打印機打印字符串。我在javaDocs網站上看到了一些例子，但是它們都很長，我甚至找不出要打印哪個字符串，因爲按鈕名稱，方法名稱等都是相同的。我不介意如果你添加或不添加圖形用戶界面的程序，生病了（可能是，但評論將有助於）我自己。 P.S.我的意思是打印紙張的打印機

謝謝。

Answer 1

import java.io.FileInputStream; 
import javax.print.Doc; 
import javax.print.DocFlavor; 
import javax.print.DocPrintJob; 
import javax.print.PrintService; 
import javax.print.PrintServiceLookup; 
import javax.print.SimpleDoc; 
import javax.print.attribute.HashPrintRequestAttributeSet; 
import javax.print.attribute.PrintRequestAttributeSet; 
import javax.print.attribute.standard.Copies; 
public class Main { 
    static public void main(String args[]) throws Exception { 
    PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet(); 
    pras.add(new Copies(1)); 
    PrintService pss[] = PrintServiceLookup.lookupPrintServices(DocFlavor.INPUT_STREAM.GIF, pras); 
    if (pss.length == 0) 
     throw new RuntimeException("No printer services available."); 
    PrintService ps = pss[0]; 
    System.out.println("Printing to " + ps); 
    DocPrintJob job = ps.createPrintJob(); 
    FileInputStream fin = new FileInputStream("YOurImageFileName.PNG"); 
    Doc doc = new SimpleDoc(fin, DocFlavor.INPUT_STREAM.GIF, null); 
    job.print(doc, pras); 
    fin.close(); 
    } 
} 

Answer 2

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 3

我知道這個問題是4歲，但也許有人使用這個簡單的解決方案：

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