java 后台打印机调用

快来打我* 2022-05-08 10:48 249阅读 0赞

打印机没反应，代码备份用

/**
     * 
     */
    /**
     * @author yuanTiao
     *
     */
    package com.zichen.xhkq.service.print;
    
    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;
    
    import org.springframework.stereotype.Service;
    import org.springframework.transaction.annotation.Transactional;
    
    /** * 
     * 建立与打印机的连接
     * 
     * @author Administrator 
     * 
     */
    @Service
    @Transactional
    public class PrintCnzzService {
    	public boolean printCnzz() {
    		// 创建打印作业
    		JFileChooser fileChooser = new JFileChooser();
    
    		int state = fileChooser.showOpenDialog(null);
    		if (state == fileChooser.APPROVE_OPTION) {
    			// 获取选择的文件
    			File file = new File("D:/msg1.txt");
    			// 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;
    			// 查找所有的可用的打印服务
    			PrintService printService[] = PrintServiceLookup
    					.lookupPrintServices(flavor, pras);
    			// 定位默认的打印服务
    			PrintService defaultService = PrintServiceLookup
    					.lookupDefaultPrintService();
    			// 显示打印对话框
    			PrintService service = ServiceUI.printDialog(null, 200, 200,
    					printService, defaultService, flavor, pras);
    			if (service != null) {
    				try {
    					DocPrintJob job = service.createPrintJob();
    					// 创建打印作业
    					FileInputStream 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();
    				}
    			}
    		}
    		return true;
    	}
    }