Go-生成小程序带参数二维码（指定跳转路径）

ゞ浴缸里的玫瑰 2022-08-31 06:54 231阅读 0赞

// PostPathSence 生成并上传OSS小程序带参数二维码
    func PostPathSence(token, sence, fileName, page string) (string, error) {
    	if len(token) == 0 || len(sence) == 0 {
    		log.WithFields(log.Fields{
    			"error": "参数为空",
    			"token": token,
    			"sence": sence,
    		}).Warn("PostScene")
    
    		return "", errors.New("参数为空-PostScene")
    	}
    
    	url := fmt.Sprintf(CREATE_QRCODE_URL, token)
    	senceStruct := SenceRule{
    		Scene: sence,
    		Width: 430,
    		Page:  page,
    	}
    
    	jsonBody, jsonErr := json.Marshal(senceStruct)
    	if jsonErr != nil {
    		log.WithFields(log.Fields{"error": jsonErr}).Warn("JSON加密-PostScene")
    		return "", jsonErr
    	}
    
    	postBody, postErr := http.Post(url, "application/json; charset=utf-8", bytes.NewReader(jsonBody))
    	if postErr != nil {
    		log.WithFields(log.Fields{"error": postErr}).Warn("POST提交-PostScene")
    		return "", postErr
    	}
    
    	defer postBody.Body.Close()
    	imagePath := "user/qrcodeId/" + fileName
    	uuid := global.GetUUID()
    	localPath, localPathErr := GetLocalPath("/public/upload/qrcode-xcx/")
    	if localPathErr != nil || len(localPath) == 0 {
    		log.WithFields(log.Fields{"error": postErr}).Warn("本地路径-PostScene")
    		return "", postErr
    	}
    
    	localPath += uuid + ".jpg"
    	switch header := postBody.Header.Get("Content-Type"); {
    	case strings.HasPrefix(header, "application/json"):
    		tokenResp := ReturnBodyRule{}
    		decoder := json.NewDecoder(postBody.Body)
    		if decodeErr := decoder.Decode(&tokenResp); decodeErr == nil {
    			log.WithFields(log.Fields{"error": decodeErr, "token": tokenResp}).Warn("json解密-PostScene")
    			return "", decodeErr
    		}
    	case strings.HasPrefix(header, "image"):
    		reply, readAllErr := ioutil.ReadAll(postBody.Body)
    		if readAllErr != nil {
    			log.WithFields(log.Fields{"error": readAllErr}).Warn("读取返回数据-PostScene")
    			return "", jsonErr
    		}
    
    		imageContent, createErr := os.Create(localPath)
    		if createErr != nil {
    			log.WithFields(log.Fields{"error": createErr, "imageContent": imageContent}).Warn("打开本地文件-PostScene")
    			return "", createErr
    		}
    
    		writeStringRes, writeStringErr := io.WriteString(imageContent, string(reply))
    		if writeStringErr != nil {
    			log.WithFields(log.Fields{"error": writeStringErr, "writeStringRes": writeStringRes}).Warn("写入本地文件-PostScene")
    			return "", writeStringErr
    		}
    
    		closeErr := imageContent.Close()
    		if closeErr != nil {
    			log.WithFields(log.Fields{"error": closeErr}).Warn("关闭本地文件-PostScene")
    			return "", closeErr
    		}
    	default:
    		log.WithFields(log.Fields{"error": header}).Warn("响应头获取-PostScene")
    		return "", errors.New("响应头获取失败-PostScene")
    	}
    
    	ossFilePath, ossFileErr := UploadOssFile(localPath, imagePath)
    	return ossFilePath, ossFileErr
    }

接口地址：

const CREATE_QRCODE_URL = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=%s"