java实现调用打印机代码

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
 1 package com.tj.print;
 2 
 3 import java.io.File;
 4 import java.io.FileInputStream;
 5 
 6 import javax.print.Doc;
 7 import javax.print.DocFlavor;
 8 import javax.print.DocPrintJob;
 9 import javax.print.PrintService;
10 import javax.print.PrintServiceLookup;
11 import javax.print.ServiceUI;
12 import javax.print.SimpleDoc;
13 import javax.print.attribute.DocAttributeSet;
14 import javax.print.attribute.HashDocAttributeSet;
15 import javax.print.attribute.HashPrintRequestAttributeSet;
16 import javax.swing.JFileChooser;
17 
18 public class PrintDemo1 {
19     public static void main(String[] args) {
20         JFileChooser fileChooser = new JFileChooser(); // 创建打印作业
21         int state = fileChooser.showOpenDialog(null);
22         if (state == fileChooser.APPROVE_OPTION) {
23             File file = fileChooser.getSelectedFile(); // 获取选择的文件
24             // 构建打印请求属性集
25             HashPrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
26             // 设置打印格式，因为未确定类型，所以选择autosense
27             DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
28             // 查找所有的可用的打印服务
29             PrintService printService[] = PrintServiceLookup.lookupPrintServices(flavor, pras);
30             // 定位默认的打印服务
31             PrintService defaultService = PrintServiceLookup
32                     .lookupDefaultPrintService();
33             // 显示打印对话框
34             PrintService service = ServiceUI.printDialog(null, 200, 200,
35                     printService, defaultService, flavor, pras);
36             if (service != null) {
37                 try {
38                     DocPrintJob job = service.createPrintJob(); // 创建打印作业
39                     FileInputStream fis = new FileInputStream(file); // 构造待打印的文件流
40                     DocAttributeSet das = new HashDocAttributeSet();
41                     Doc doc = new SimpleDoc(fis, flavor, das);
42                     job.print(doc, pras);
43                 } catch (Exception e) {
44                     e.printStackTrace();
45                 }
46             }
47         }
48     }
49 }