关于_java程序生成二维码_无logo

1.二维码生成方式一

package com.ama.aduan.test;

import java.awt.Color;

import java.awt.Graphics2D;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileOutputStream;

import java.util.Scanner;

import javax.imageio.ImageIO;

import com.swetake.util.Qrcode;//这个包很关键

/**

* @author 手动输入 设置二维码

*

*/

public class TestMaTwo {

public static void main(String[] args) {

String content="";

Scanner sc=new Scanner(System.in);

System.out.println("在控制台编写你的名片信息\n 输入ok后,按enter结束");

while(! content.endsWith("ok")){

content=content+"\n";

content=content.concat(sc.next());

}

 

content=content.substring(1,content.length()-2);

 

System.out.println("给生成的二维码设置名字，按enter结束");

String filename=sc.next();

String filepath1="F:/二维码";

File file =new File(filepath1);

if(!file.exists()){

file.mkdir();

}

String filepath=filepath1+"/"+filename+".png";

new TestMain().drawQRCODE(content, filepath);

System.out.println("你的名片生成成功，在你的电脑F!");

 

}

public void drawQRCODE(String content,String filepath){

try {

Qrcode qrcode=new Qrcode();

qrcode.setQrcodeErrorCorrect('M');

qrcode.setQrcodeEncodeMode('B');

qrcode.setQrcodeVersion(15);

int width= 235;

int height=235;

BufferedImage image=new BufferedImage(width,height,BufferedImage.TYPE_INT_RGB);

Graphics2D g2=image.createGraphics();

g2.setBackground(Color.WHITE);

g2.clearRect(0,0,235,235);

g2.setColor(Color.BLACK);

 

byte[] contentbytes=content.getBytes("utf-8");

boolean[][] codeout= qrcode.calQrcode(contentbytes);

for (int i = 0; i <codeout.length; i++) {

for (int j = 0; j < codeout.length; j++) {

 

if (codeout[j][i]) g2.fillRect(j*3+2,i*3+2,3,3);

}

}

g2.dispose();

image.flush();

File imgFile = new File(filepath);

ImageIO.write(image, "png", imgFile);

}catch (Exception e){

e.printStackTrace();

}

}

}

展示：