Java 生成二维码（正常二维码和带Logo的二维码）

落日映苍穹つ 2022-10-09 12:21 160阅读 0赞

### 1 Maven依赖 ###

<dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
                <version>5.6.2</version>
            </dependency>
            
            <dependency>
                <groupId>com.google.zxing</groupId>
                <artifactId>core</artifactId>
                <version>3.3.3</version>
            </dependency>

### 2 调试代码 ###

package com.controller;
    
    import cn.hutool.extra.qrcode.*;
    import org.springframework.core.io.ClassPathResource;
    import org.springframework.web.bind.annotation.*;
    
    import javax.servlet.http.HttpServletResponse;
    
    @RestController
    @RequestMapping("/QcCode")
    public class QcCodeController {
        /**
         * 获取二维码
         *
         * @param response
         */
        @GetMapping("/getQcCode")
        public void getQcCode(HttpServletResponse response) {
            try {
                QrCodeUtil.generate("https://blog.csdn.net/qq_38974638", 400, 400, "PNG", response.getOutputStream());
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    
        /**
         * 获取带Logo二维码
         *
         * @param response
         */
        @GetMapping("/getLogoQcCode")
        public void getLogoQcCode(HttpServletResponse response) {
            try {
                QrCodeUtil.generate("https://blog.csdn.net/qq_38974638", QrConfig.create().setImg(new ClassPathResource("/img/logo.jpg").getFile()), "PNG", response.getOutputStream());
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

### 3 Logo文件 ###

文件地址：

![20210624185003533.png][]

4 调试结果

正常二维码：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4OTc0NjM4_size_16_color_FFFFFF_t_70][]

带Logo的二维码：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4OTc0NjM4_size_16_color_FFFFFF_t_70 1][]

[20210624185003533.png]: /images/20221005/a1e5d53fb9014559a3c9c752d921447f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4OTc0NjM4_size_16_color_FFFFFF_t_70]: /images/20221005/99b7270e10ad4fb5971dc092c6718965.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4OTc0NjM4_size_16_color_FFFFFF_t_70 1]: /images/20221005/eea7988b50ef4623a268b428867b2d2e.png