Java编程打印购物小票实现代码

简单介绍运行环境：

语言：java

工具：eclipse

系统：windows7

（打印设备暂时没有，所以只能提供预览图）

最近，项目需要为商城做一个购物小票的打印功能，日常我们去超市买东西，结账的时候收银员都会打印一个小票，一般的商城也都需要这样的一个小功能，本文给出的 demo 是在 58mm 的热敏打印机下的例子，如果是其他纸张类型的打印机，调整纸张宽度即可。

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：[phone]", 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;
		}
	}
}

运行结果：

效果预览：

总结

简单说就是编写一段java程序，将输出结果另存为“ *.xps  ”格式文件，由打印机输出，非常简单。希望对大家有所帮助。如有问题欢迎留言指出。感谢朋友们对本站的支持。