扫描二维码跳转到指定界面（亲测可用）

使用前提

自己搭建一个springboot 项目  将代码引入即可使用

测试用例

import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.common.BitMatrix;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.Hashtable;


/**
 * @Author 李汶璋
 * @Date
 */
public class TestDemo {
    private static final int BLACK = 0xFF000000;
    private static final int WHITE = 0xFFFFFFFF;
    public static void main(String[] args) throws Exception {
        String text = "https://www.baidu.com/";//这里是URL ，扫描之后就跳转到这个界面
        String path = "D:/";
        int width = 900;
        int height = 900;
        // 二维码图片格式
        String format = "gif";
        // 设置编码，防止中文乱码
        Hashtable<EncodeHintType, Object> ht = new Hashtable<EncodeHintType, Object>();
        ht.put (EncodeHintType.CHARACTER_SET, "UTF-8");
        // 设置二维码参数(编码内容，编码类型，图片宽度，图片高度, 编码格式)
        BitMatrix bitMatrix = new MultiFormatWriter().encode (text, BarcodeFormat.QR_CODE, width, height, ht);
        // 生成二维码(定义二维码输出服务器路径)
        File outputFile = new File (path);
        if (!outputFile.exists ())
        {
            //创建文件夹
            outputFile.mkdir ();
        }
        int b_width = bitMatrix.getWidth ();
        int b_height = bitMatrix.getHeight ();
        // 建立图像缓冲器
        BufferedImage image = new BufferedImage (b_width, b_height, BufferedImage.TYPE_3BYTE_BGR);
        for ( int x = 0; x < b_width; x++ )
        {
            for ( int y = 0; y < b_height; y++ )
            {
                image.setRGB (x, y, bitMatrix.get (x, y) ? BLACK : WHITE);
            }
        }
        // 生成二维码
        ImageIO.write (image, format, new File (path + "/qrcode." + format));
    }
}

pom依赖

    <dependency>
            <groupId>com.google.zxing</groupId>
            <artifactId>core</artifactId>
            <version>3.4.1</version>
        </dependency>