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Java编程打印购物小票实现代码

时间:2021-02-20 11:25     来源/作者:RexFang

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。

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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;
        }
    }
}

运行结果:

Java编程打印购物小票实现代码

效果预览:

Java编程打印购物小票实现代码

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。

原文链接:http://www.cnblogs.com/rexfang/p/7441146.html

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