Java编程打印购物小票实现代码

package test;import java.awt.*;import java.awt.print.*;/** * 打印机测试类（58mm） * 1、目标打印机必须设置为默认打印机 * 2、打印页面的宽度和具体的打印机有关，一般为打印纸的宽度，需要配置成系统参数 * 3、一个汉字的宽度大概是12点 */public class PrintTest {	public static void main(String[] args){		if(PrinterJob.lookupPrintServices().length>0){			/*        打印格式       */			PageFormat pageFormat = new PageFormat();			//设置打印起点从左上角开始，从左到右，从上到下打印			pageFormat.setOrientation(PageFormat.PORTRAIT);			/*        打印页面格式设置       */			Paper paper = new Paper();			//设置打印宽度（固定，和具体的打印机有关）和高度（跟实际打印内容的多少有关）			paper.setSize(140, 450);			//设置打印区域 打印起点坐标、打印的宽度和高度			paper.setImageableArea(0, 0, 135, 450);			pageFormat.setPaper(paper);			//创建打印文档			Book book = new Book();			book.append(new Printable() {				@Override				        public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {					if(pageIndex>0){						return NO_SUCH_PAGE;					}					Graphics2D graphics2D = (Graphics2D) graphics;					Font font = new Font("宋体", Font.PLAIN, 5);					graphics2D.setFont(font);					drawString(graphics2D, "//////////////////////////////", 10, 17, 119, 8);					font = new Font("宋体", Font.PLAIN, 7);					graphics2D.setFont(font);					int yIndex = 30;					int lineHeight = 10;					int lineWidth = 120;					Color defaultColor = graphics2D.getColor();					Color grey = new Color(145, 145, 145);					//收货信息					yIndex = drawString(graphics2D, "收货人：路人甲", 10, yIndex, lineWidth, lineHeight);					yIndex = drawString(graphics2D, "收货地址：北京市海淀区上地十街10号百度大厦", 10, yIndex + lineHeight, lineWidth, lineHeight);					//收货信息边框					Stroke stroke = new BasicStroke(0.5f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL,0,new float[]{4, 4},0);					graphics2D.setStroke(stroke);					graphics2D.drawRect(5, 10, 129, yIndex);					//药店名称					lineWidth = 129;					lineHeight = 8;					graphics2D.setFont(new Font("宋体", Font.BOLD, 8));					graphics2D.setColor(defaultColor);					yIndex = drawString(graphics2D, "北京药店零售小票", 5, yIndex + lineHeight + 20, lineWidth, 12);					graphics2D.setFont(new Font("宋体", Font.PLAIN, 6));					graphics2D.setColor(grey);					yIndex = drawString(graphics2D, "操作员：小清新", 5, yIndex + lineHeight + 2, lineWidth, lineHeight);					yIndex = drawString(graphics2D, "日期：2017-01-05", 5 + lineWidth/2, yIndex, lineWidth, lineHeight);					yIndex = drawString(graphics2D, "品名", 5, yIndex + lineHeight * 2 - 5, lineWidth, lineHeight);					yIndex = drawString(graphics2D, "规格", (lineWidth/10)*4, yIndex, lineWidth, lineHeight);					yIndex = drawString(graphics2D, "单价", (lineWidth/10)*8, yIndex, lineWidth, lineHeight);					yIndex = drawString(graphics2D, "数量", (lineWidth/10)*10, yIndex, lineWidth, lineHeight);					for (int i=0; i<5; i++){						graphics2D.setFont(new Font("宋体", Font.PLAIN, 7));						yIndex = drawString(graphics2D, "E复合维生素B片100片E复合维生素B片100片", 5, yIndex + 15, (lineWidth/10)*7, 10);						graphics2D.setFont(new Font("宋体", Font.PLAIN, 6));						graphics2D.setColor(grey);						yIndex = drawString(graphics2D, "100片/盒", 5, yIndex + 11, lineWidth, lineHeight);						yIndex = drawString(graphics2D, "14.50", (lineWidth/10)*8, yIndex, lineWidth, lineHeight);						yIndex = drawString(graphics2D, "2", (lineWidth/10)*10, yIndex, lineWidth, lineHeight);						graphics2D.setFont(new Font("宋体", Font.PLAIN, 7));						yIndex = yIndex + 2;						graphics2D.drawLine(5, yIndex, 5 + lineWidth, yIndex);					}					graphics2D.setColor(defaultColor);					yIndex = drawString(graphics2D, "会员名称：小清新", 5, yIndex + lineHeight * 2, lineWidth, lineHeight);					yIndex = drawString(graphics2D, "总  数：6", 5, yIndex + lineHeight, lineWidth, lineHeight);					yIndex = drawString(graphics2D, "总  计：55.30", 5, yIndex + lineHeight, lineWidth, lineHeight);					yIndex = drawString(graphics2D, "收  款：100.00", 5, yIndex + lineHeight, lineWidth, lineHeight);					yIndex = drawString(graphics2D, "找  零：44.70", 5, yIndex + lineHeight, lineWidth, lineHeight);					graphics2D.setFont(new Font("宋体", Font.PLAIN, 6));					graphics2D.setColor(grey);					yIndex = drawString(graphics2D, "电话：020-123456", 5, yIndex + lineHeight * 2, lineWidth, lineHeight);					yIndex = drawString(graphics2D, "地址：北京市海淀区上地十街10号百度大厦", 5, yIndex + lineHeight, lineWidth, lineHeight);					yIndex = yIndex + 20;					graphics2D.drawLine(0, yIndex, 140, yIndex);					return PAGE_EXISTS;				}			}			, pageFormat);			//获取默认打印机			PrinterJob printerJob = PrinterJob.getPrinterJob();			printerJob.setPageable(book);			try {				printerJob.print();			}			catch (PrinterException e) {				e.printStackTrace();				System.out.println("打印异常");			}		} else{			System.out.println("没法发现打印机服务");		}	}	/**   * 字符串输出   * @param graphics2D  画笔   * @param text     打印文本   * @param x       打印起点 x 坐标   * @param y       打印起点 y 坐标   * @param lineWidth   行宽   * @param lineHeight  行高   * @return 返回终点 y 坐标   */	private static int drawString(Graphics2D graphics2D, String text, int x, int y, int lineWidth, int lineHeight){		FontMetrics fontMetrics = graphics2D.getFontMetrics();		if(fontMetrics.stringWidth(text)<lineWidth){			graphics2D.drawString(text, x, y);			return y;		} else{			char[] chars = text.toCharArray();			int charsWidth = 0;			StringBuffer sb = new StringBuffer();			for (int i=0; i<chars.length; i++){				if((charsWidth + fontMetrics.charWidth(chars[i]))>lineWidth){					graphics2D.drawString(sb.toString(), x, y);					sb.setLength(0);					y = y + lineHeight;					charsWidth = fontMetrics.charWidth(chars[i]);					sb.append(chars[i]);				} else{					charsWidth = charsWidth + fontMetrics.charWidth(chars[i]);					sb.append(chars[i]);				}			}			if(sb.length()>0){				graphics2D.drawString(sb.toString(), x, y);				y = y + lineHeight;			}			return y - lineHeight;		}	}}