java调用window系统默认打印机

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

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.DocAttributeSet;
import javax.print.attribute.HashDocAttributeSet;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.swing.JFileChooser;

public class PrintDemo {

	public static void main(String[] args) {
		JFileChooser fileChooser = new JFileChooser(); // 创建打印作业
		File file = new File("f:/"); // 获取选择的文件
		// 构建打印请求属性集
		HashPrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
		// 设置打印格式，因为未确定类型，所以选择autosense
		DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
		// 定位默认的打印服务
		PrintService defaultService = PrintServiceLookup.lookupDefaultPrintService();
		InputStream fis = null;
		try {
			DocPrintJob job = atePrintJob(); // 创建打印作业
			fis = new FileInputStream(file); // 构造待打印的文件流
			DocAttributeSet das = new HashDocAttributeSet();
			Doc doc = new SimpleDoc(fis, flavor, das);
			job.print(doc, pras);
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (fis != null) {
				try {
					fis.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
	}
}