怎么用java代码 获取打印机列表

import java.io.File;  
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.ServiceUI;  
import javax.print.SimpleDoc;  
import javax.print.attribute.DocAttributeSet;  
import javax.print.attribute.HashDocAttributeSet;  
import javax.print.attribute.HashPrintRequestAttributeSet;  
import javax.swing.JFileChooser;  
 
     
public class Printers
{
	public static void main(String[] args)
	{
		HashPrintRequestAttributeSet pras = new HashPrintRequestAttributeSet(); 
		DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;  
		//查找所有的可用的打印服务  
		PrintService[] printService = PrintServiceLookup.lookupPrintServices(flavor, pras);  

		for (int i =0; i<printService.length ;i++ )
		{
			System.out.println(printService[i].getName());
		}	
	}
}