java实现调用默认打印机
接口 PrintService 是 DocPrintJob 的工厂。PrintService 描述了打印机的功能，并可查询它来了解打印机支持的属性。
import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import javax.print.Doc;import javax.print.DocFlavor;import javax.print.DocPrintJob;import javax.print.PrintException;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.print.attribute.PrintRequestAttributeSet;/** * 调用打印机功能 * @author Administrator * */public class PrintDemoII {public static void main(String[] args) {DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();PrintService []pservices = PrintServiceLookup.lookupPrintServices(flavor, aset);PrintService defaultService = PrintServiceLookup.lookupDefaultPrintService();PrintService service = ServiceUI.printDialog(null, 200, 200, pservices, defaultService, flavor, aset);if(service != null){try {DocPrintJob pj =service.createPrintJob();FileInputStream fis = new FileInputStream("D:" + File.separator + "zkyzl.txt");DocAttributeSet das = new HashDocAttributeSet();Doc doc = new SimpleDoc(fis, flavor, das);pj.print(doc, aset);} catch (FileNotFoundException fe) {fe.printStackTrace();} catch (PrintException e) {e.printStackTrace();}}else {System.out.println("打印失败");}}}