微信小程序中用Python生成二维码的两种方式

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微信小程序生成二维码：

所用语言python，有两种方式：

1： 后端传一段字符串给前端， 前端显示

2： 后端直接生成图片

1： 后端传一段字符串给前端， 前端显示def get_wxCode(Request, UserInfo):try:scene = Request["scene"]access_token = get_wxCode_token()if not access_token:return Falsetextmod = {"scene": scene, "page": "pages/index/main", "width": 430, "auto_color": True, "is_hyaline": False}textmod = json.dumps(textmod).encode(encoding='utf-8')header_dict = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko',"Content-Type": "application/json"}url = 'https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=' + access_tokenreq = request.Request(url=url, data=textmod, headers=header_dict)res = request.urlopen(req)res = res.read()b64str = base64.b64encode(res)return b64strexcept Exception as e:print(e)return Falsevar getWXcode2 = function(hostname){//获取管理端小程序码//动态获取域名，若为本地环境，则默认携带参数为wx-test//示例:londex.i-plc.cnvar hostname1 =window.location.host;hostname1 = hostname1.split('.')[0];if(hostname1 == '127' || hostname1 == 'localhost'){hostname1 = hostname;}if(window.localStorage.getItem('wxcode2')){$('#wxcodeImg2').attr('src','data:image/png;base64,'+ window.localStorage.getItem('wxcode2'));$('#wxCodeModal2').modal('show');return;}var params = {"scene":hostname1,};$.ajax({type:'post',url:'/request?rname=i_plc.Page.wechat_api.wechat.get_wxCode',data:params,success:function (res) {console.log(res)if(res === false){$.MessageBox.notify('warn', '获取失败，请稍后再试！');}else{console.log(res)$('#wxcodeImg2').attr('src','data:image/png;base64,'+res);$('#wxCodeModal2').modal('show');window.localStorage.setItem('wxcode2',res)}}});};2： 后端直接生成图片def get_wxCode(Request, UserInfo):"""生成小程序二维码:param Request::param UserInfo::return:"""result = {"success": False}try:# scene = Request["scene"]access_token = get_wxCode_token()if not access_token:raise Exception("access_token")compid = Request["compid"]sql = "select compIndex from company where operationFlag=9 and compID=%s" % compidResult = SqlRun(sql)if Result["Data"] and Result["Data"][0] and Result["Data"][0][0]:scene = Result["Data"][0][0]textmod = {"scene": scene, "page": "pages/index/main", "width": 430, "auto_color": True, "is_hyaline": False}textmod = json.dumps(textmod).encode(encoding='utf-8')header_dict = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko',"Content-Type": "application/json"}url = 'https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=' + access_tokenreq = request.Request(url=url, data=textmod, headers=header_dict)res = request.urlopen(req)res = res.read()b64str = base64.b64encode(res)imgdata=base64.b64decode(b64str)path = "static/tmpfiles/scan_%s.png" % file_namefile = open(os.path.join(settings.BASE_DIR, path,), 'wb+')file.write(imgdata)file.close()result["code_url"] = pathresult["success"] = Trueexcept Exception as e:result["error_msg"] = str(e)return json.dumps(result)def get_wxCode_token():try:textmod = {"grant_type": "client_credential","appid": "wx44a452fb08b0a990","secret": "9aedb0a274027bdd09612fbde3298129"}textmod = parse.urlencode(textmod)header_dict = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko'}url = 'https://api.weixin.qq.com/cgi-bin/token'req = request.Request(url='%s%s%s' % (url, '?', textmod), headers=header_dict)res = request.urlopen(req)res = res.read().decode(encoding='utf-8')res = json.loads(res)access_token = res["access_token"]return access_tokenexcept Exception as e:print(e)return False相关推荐：

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