java版本 code128混合条形码制作

由于最近需要做到条码又不想用什么jar包,并且查看jar包的api实在是太麻烦。所以就自己写了个条码工具类。

条码原理:主要是code128 其他类似。采用的是黑白相间的条纹组成。

                 每十一个单位的宽度的条纹 为一个单位,表示一个字符,这里除了结束符所有表示一个字符的条纹都是

由黑白黑白黑白 六条纹(只是宽度不同)组成,然后在对其相应条纹的宽度去查条码表,就会得到相应的字符。

      code128,他分code128A、code128B、code128C,code128A基本上很少用,code128C表示纯数字并且是双数(01-99)

    code128B表示数字、字母、符号。

Code128编码规则:开始位 + [FNC1(为EAN128码时加)] + 数据位 + 检验位 + 结束位 (我们这里不用就不加)

Code128检验位计算:(开始位对应的ID值 + 每位数据在整个数据中的位置×每位数据对应的ID值)% 103

编码表

例如:01234

StartC +01+23+CodeB+4+?+结束符 查询后为105+1+23+100+20+?+106

检验符=(1*105+2*1+3*23+4*100+5*20)% 103=58

最终编码为:105+1+23+100+20+58+106

package com;

import com.sun.deploy.util.StringUtils;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

/**
 * Created by 常发均 on 2020/5/12.
 * 原创
 */
public class qrcodeUtil {
    private  int[][] CODE_PATTERNS = {
            {2, 1, 2, 2, 2, 2}, // 0
            {2, 2, 2, 1, 2, 2},
            {2, 2, 2, 2, 2, 1},
            {1, 2, 1, 2, 2, 3},
            {1, 2, 1, 3, 2, 2},
            {1, 3, 1, 2, 2, 2}, // 5
            {1, 2, 2, 2, 1, 3},
            {1, 2, 2, 3, 1, 2},
            {1, 3, 2, 2, 1, 2},
            {2, 2, 1, 2, 1, 3},
            {2, 2, 1, 3, 1, 2}, // 10
            {2, 3, 1, 2, 1, 2},
            {1, 1, 2, 2, 3, 2},
            {1, 2, 2, 1, 3, 2},
            {1, 2, 2, 2, 3, 1},
            {1, 1, 3, 2, 2, 2}, // 15
            {1, 2, 3, 1, 2, 2},
            {1, 2, 3, 2, 2, 1},
            {2, 2, 3, 2, 1, 1},
            {2, 2, 1, 1, 3, 2},
            {2, 2, 1, 2, 3, 1}, // 20
            {2, 1, 3, 2, 1, 2},
            {2, 2, 3, 1, 1, 2},
            {3, 1, 2, 1, 3, 1},
            {3, 1, 1, 2, 2, 2},
            {3, 2, 1, 1, 2, 2}, // 25
            {3, 2, 1, 2, 2, 1},
            {3, 1, 2, 2, 1, 2},
            {3, 2, 2, 1, 1, 2},
            {3, 2, 2, 2, 1, 1},
            {2, 1, 2, 1, 2, 3}, // 30
            {2, 1, 2, 3, 2, 1},
            {2, 3, 2, 1, 2, 1},
            {1, 1, 1, 3, 2, 3},
            {1, 3, 1, 1, 2, 3},
            {1, 3, 1, 3, 2, 1}, // 35
            {1, 1, 2, 3, 1, 3},
            {1, 3, 2, 1, 1, 3},
            {1, 3, 2, 3, 1, 1},
            {2, 1, 1, 3, 1, 3},
            {2, 3, 1, 1, 1, 3}, // 40
            {2, 3, 1, 3, 1, 1},
            {1, 1, 2, 1, 3, 3},
            {1, 1, 2, 3, 3, 1},
            {1, 3, 2, 1, 3, 1},
            {1, 1, 3, 1, 2, 3}, // 45
            {1, 1, 3, 3, 2, 1},
            {1, 3, 3, 1, 2, 1},
            {3, 1, 3, 1, 2, 1},
            {2, 1, 1, 3, 3, 1},
            {2, 3, 1, 1, 3, 1}, // 50
            {2, 1, 3, 1, 1, 3},
            {2, 1, 3, 3, 1, 1},
            {2, 1, 3, 1, 3, 1},
            {3, 1, 1, 1, 2, 3},
            {3, 1, 1, 3, 2, 1}, // 55
            {3, 3, 1, 1, 2, 1},
            {3, 1, 2, 1, 1, 3},
            {3, 1, 2, 3, 1, 1},
            {3, 3, 2, 1, 1, 1},
            {3, 1, 4, 1, 1, 1}, // 60
            {2, 2, 1, 4, 1, 1},
            {4, 3, 1, 1, 1, 1},
            {1, 1, 1, 2, 2, 4},
            {1, 1, 1, 4, 2, 2},
            {1, 2, 1, 1, 2, 4}, // 65
            {1, 2, 1, 4, 2, 1},
            {1, 4, 1, 1, 2, 2},
            {1, 4, 1, 2, 2, 1},
            {1, 1, 2, 2, 1, 4},
            {1, 1, 2, 4, 1, 2}, // 70
            {1, 2, 2, 1, 1, 4},
            {1, 2, 2, 4, 1, 1},
            {1, 4, 2, 1, 1, 2},
            {1, 4, 2, 2, 1, 1},
            {2, 4, 1, 2, 1, 1}, // 75
            {2, 2, 1, 1, 1, 4},
            {4, 1, 3, 1, 1, 1},
            {2, 4, 1, 1, 1, 2},
            {1, 3, 4, 1, 1, 1},
            {1, 1, 1, 2, 4, 2}, // 80
            {1, 2, 1, 1, 4, 2},
            {1, 2, 1, 2, 4, 1},
            {1, 1, 4, 2, 1, 2},
            {1, 2, 4, 1, 1, 2},
            {1, 2, 4, 2, 1, 1}, // 85
            {4, 1, 1, 2, 1, 2},
            {4, 2, 1, 1, 1, 2},
            {4, 2, 1, 2, 1, 1},
            {2, 1, 2, 1, 4, 1},
            {2, 1, 4, 1, 2, 1}, // 90
            {4, 1, 2, 1, 2, 1},
            {1, 1, 1, 1, 4, 3},
            {1, 1, 1, 3, 4, 1},
            {1, 3, 1, 1, 4, 1},
            {1, 1, 4, 1, 1, 3}, // 95
            {1, 1, 4, 3, 1, 1},
            {4, 1, 1, 1, 1, 3},
            {4, 1, 1, 3, 1, 1},
            {1, 1, 3, 1, 4, 1},
            {1, 1, 4, 1, 3, 1}, // 100
            {3, 1, 1, 1, 4, 1},
            {4, 1, 1, 1, 3, 1},
            {2, 1, 1, 4, 1, 2},
            {2, 1, 1, 2, 1, 4},
            {2, 1, 1, 2, 3, 2}, // 105
            {2, 3, 3, 1, 1, 1, 2}
    };
    private int xyz=0;
    private int xyz_num=0;
            public qrcodeUtil(){
            }
    /*
    * 为了使线条变少,采用codeC与codeB交替使用
    * */
    private StringBuffer code128jx(String code){
        StringBuffer sbf=new StringBuffer("");
        String code_bsm="";String code_bsm_old="";
        if(code==null||code.equals("")){
            return sbf;
        }
        int[] arr=new int[6];
        char[] chars = code.toCharArray();
        int a=0;int b=0;int c=0;int d=0;int e=0;
        for(int i=0;i             if(i!=b){
                continue;
            }
            System.out.println(i);
            a=(int)chars[i]-32;
            boolean flag=false;
             if(a>=16&&a<=25){
                 if(i                      c=(int)chars[i+1]-32;
                     if(c>=16&&c<=25){
                         flag=true;
                     }
                 }

             }
            code_bsm_old=code_bsm;
            if(flag){
                b+=2;
                code_bsm="C";
                d=Integer.parseInt(code.substring(i,i+2));
                arr=CODE_PATTERNS[d];
            }
            else{
                b+=1;
                code_bsm="B";
                d=a;
                arr=CODE_PATTERNS[a];
            }
            if(i==0){//65==103
                sbf=codeSbf(sbf,CODE_PATTERNS[(int)code_bsm.toCharArray()[0]+38]);
                xyz+=(int)code_bsm.toCharArray()[0]+38;
            }else{
                if(!code_bsm.equals(code_bsm_old)){
                    sbf=codeSbf(sbf,CODE_PATTERNS[(int)code_bsm_old.toCharArray()[0]+33]);
                    xyz_num++;
                    xyz+=xyz_num*((int)code_bsm_old.toCharArray()[0]+33);
                }
            }
            xyz_num++;
            xyz+=xyz_num*d;
            sbf=codeSbf(sbf,arr);
        }
        int y=xyz%103;
        sbf=codeSbf(sbf,CODE_PATTERNS[y]);
        sbf=codeSbf(sbf,CODE_PATTERNS[106]);
        return sbf;
    };
    private StringBuffer codeSbf(StringBuffer sbf,int[] arr){
        //System.out.println();
        for(int m=0;m             System.out.print(arr[m]);
            sbf.append(arr[m]);
        }
        System.out.println();
        return sbf;
    }
    public BufferedImage createImage(int width,int height,StringBuffer sbf,String code){
        int jj=3;//图片与字体的间距
        int bl=5;//图片与字体的高度比例为5:1
        String[] arr=sbf.toString().split("");
        int w=0;int l=0;
        width=100;height=40;
        for(int i=0;i             w+=Integer.parseInt(arr[i]);
        }
        width=width-w<40?w+40:width;
        width=(width-w)/2==1?(width+1):width;
        height=height-27<20?47:height;
        int dpHeight=5*(height-23)/6;
        int fontHeight=height-23-dpHeight;
        l=(width-w)/2;
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics graphic = image.getGraphics();
        Graphics2D g2d=(Graphics2D)graphic;
        g2d.setColor(Color.WHITE);
        g2d.fillRect(0, 0, width, height);
        for(int i=0;i             if(i%2==0){
                g2d.setColor(Color.BLACK);
                for(int j=0;j                     g2d.drawLine(l+j,10,l+j,30);
                }
                //graphic.drawRect(l,10,Integer.parseInt(arr[i]),10);
            }else{
                g2d.setColor(Color.WHITE);
            }
            l+=Integer.parseInt(arr[i]);
        }
        // 画字符
        g2d.setColor(Color.BLACK);
        fontHeight=fontHeight<8?8:fontHeight;
        int font_size=(int)(96*fontHeight/72);
        font_size=12;
        Font f=new Font("宋体",Font.PLAIN,font_size);
        FontMetrics fm = sun.font.FontDesignMetrics.getMetrics(f);
        g2d.setFont(f);
        int fontLeftWidth=(width-fm.stringWidth(code))/2;
        for (int i = 0; i             int left=i==0?fontLeftWidth:(fontLeftWidth+fm.stringWidth(code.substring(0,i)));
            g2d.drawString(code.substring(i,i+1),left,13+dpHeight+fontHeight);
        }
        return image;
    }
    public void drawImage(BufferedImage image,String address,String code){
        try {
            ImageIO.write(image, "jpg", new File(address+"//"+code+".jpg"));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public static void main(String[] args) {
        qrcodeUtil qrcode=new qrcodeUtil();
        String code="111aaaa1";
        StringBuffer sbf=qrcode.code128jx(code);
        qrcode.drawImage(qrcode.createImage(100,40,sbf,code),"D://code",code);
    }

}

 

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