关于使用谷歌矩阵代码生成微信二维码的方法

我会带着你远行 2022-06-01 00:35 101阅读 0赞

注意:请先检查是否在maven中添加了fastjson以及谷歌zxing的依赖包,本示例使用的依赖包及对应版本如下:

<dependencies>
    		<dependency>
    			<groupId>com.google.zxing</groupId>
    			<artifactId>core</artifactId>
    			<version>3.0.0</version>
    		</dependency>
    		<dependency>
    			<groupId>com.google.zxing</groupId>
    			<artifactId>javase</artifactId>
    			<version>3.0.0</version>
    		</dependency>
    		<dependency>
    			<groupId>junit</groupId>
    			<artifactId>junit</artifactId>
    			<version>4.12</version>
    		</dependency>
    		<dependency>
    			<groupId>com.alibaba</groupId>
    			<artifactId>fastjson</artifactId>
    			<version>1.1.29</version>
    		</dependency>
    </dependencies>

测试代码如下:

public class QRCodeTest {
    
    	@Test
    	public void test() throws WriterException, IOException {
    		//生成二维码的路径
    		String filePath = "D://";
    		//图片名称
    		String fileName = "qrCodeTest.png";
    		
    		//使用fastjson创建jsonObject对象
    		JSONObject jsonObject = new JSONObject();
    		jsonObject.put("company", "www.kinglong.com");
    		jsonObject.put("author", "kinglong");
    		
    		//将json对象转换为json格式的字符串
    		String content = jsonObject.toJSONString();
    		
    		//设置画布大小
    		int width = 200;//宽度
    		int height = 200;//高度
    		
    		//设置字符编码集,采用utf-8的字符编码
    		Map<EncodeHintType,Object> hints = new HashMap<EncodeHintType,Object>();
    		hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
    		
    		//生成矩阵
    		BitMatrix bitMatrix = new MultiFormatWriter().encode("weixin://wxpay/bizpayurl?pr=KKmqnXS", BarcodeFormat.QR_CODE, width, height, hints);
    		
    		//生成路径
    		Path path = FileSystems.getDefault().getPath(filePath, fileName);
    		
    		//输出文件至指定的路径
    		MatrixToImageWriter.writeToPath(bitMatrix, "png", path);
    		
    		
    	}
    
    }