上星期公司项目需求加入模版消息推送功能,今天在这整理一下: 微信的模版消息分为公众号的和小程序的。它们两大同小异,只是小程序的模版消息里有个form_id参数需要多加注意,并且只能在真机上测试,要不这个form_id参数值你是拿不到的。 第一步,获取用户openId。有两个方法,思路都一样:调wx.login得到code(一次性的,不可重复利用),由code换取openId(这步有两个方法,都应该在后台完成,前台测试时,请在开发工具里按如下配置)。一般使用第二种方法,因为它还可以返回用户的基本信息,这貌似是一般小程序必用到的信息。第一种方法只会获取到openId、session_key。 方法一: wx.login({ success: function (logincode) { if (logincode.code) { wx.request({ url: 'https://api.weixin.qq.com/sns/jscode2session?appid=yourappid&secret=yoursecret&js_code=' + logincode.code + '&grant_type=authorization_code', header: { 'content-type': 'application/json' }, success: function (resle) { that.globalData.openId_true = resle.data.openid; } }) } } }); 方法二: 注意点:当 withCredentials 为 true 时,要求此前有调用过 wx.login 且登录态尚未过期,此时返回的数据会包含 encryptedData, iv 等敏感信息;当 withCredentials 为 false 时,不要求有登录态,返回的数据不包含 encryptedData, iv 等敏感信息。 wx.login({ success: function (loginres) { if (loginres.code) { wx.getUserInfo({ withCredentials: true, lang: 'zh_CN', success: function (res) { wx.request({ url: 'https://le.beiebi.com/lkt/api/scanLogin/appletScanLogin', method: 'POST', header: { 'content-type': 'application/x-www-form-urlencoded' }, data: { code: loginres.code, encryptedData: res.encryptedData, iv: res.iv, unionid: '' }, success: function (res) { openId = res.userInfo.openId }, fail: function () { } }) }, fail: function () { } }) } } }) 第二步,获取access_token(也应该在后台完成)。 注意点:access_token有效时限两个小时,每天的生成次数有限(2000次),所以需要在后台做缓存,这里只是模拟一下。 getAccess_token:function (client_credential, appid, secret,formId) { var that = this; if (that.data.isTime){ var dic = { grant_type: client_credential, appid: appid, secret: secret, } util.httpsGetRequest("https://api.weixin.qq.com/cgi-bin/token", dic, function (success) { console.info('-----access_token==' + success.access_token); access_token = success.access_token; wx.setStorageSync('access_token',success.access_token); that.sendMessage(formId); that.data.isTime = false; var date = new Date(); that.data.timestamp = date.getTime(); that.countdown(that, that.data.timestamp + 7200); }) } else { access_token = wx.getStorageSync('access_token'); that.sendMessage(formId); } }, 第三步,发送模版消息。 注意点:下面写了两个字典装参数,其中dic1为公众号发送模版消息需要的参数,dic为小程序发送模版消息需要的参数。其中的formId,表单提交场景下,为 submit 事件带上的 formId( e.detail.formId);支付场景下,为本次支付的 prepay_Id。 sendMessage: function (formId) { var dic1 = { "touser": app.globalData.openId_true, "template_id": "9I2cE23DPBi_nlYZLSJT-YK_DAMvGmmwyOnYTiSD523", "miniprogram": { "appid": appid, "pagepath": "pages/index/qqq/aaa/aaa?analysisReportId=2050&openId=1" }, "color": "#173177", "data": { "first": { "value": "恭喜你购买成功!", "color": "#173177" }, "keyword1": { "value": "vip1867332110254", "color": "#173177" }, "keyword2": { "value": "深圳一起赚钱科技有限公司", "color": "#173177" }, "keyword3": { "value": "1500元", "color": "#173177" }, "remark": { "value": "欢迎再次购买!", "color": "#173177" } } } var dic = { "touser": app.globalData.openId_true, "template_id": "9I2cE23DPBi_nlYZLSJT-YK_DAMvGmmwyOnWFDFfgd”, "page": "pages/index/qqq/aaa/aaa?analysisReportId=2050&openId=1", "form_id": formId, "data": { "keyword1": { "value": "乐奔快递", "color": "#173177" }, "keyword2": { "value": "2017年11月13日 12:00", "color": "#173177" }, "keyword3": { "value": "iPhone11", "color": "#173177" }, "keyword4": { "value": "12545568461025", "color": "#173177" }, "keyword5": { "value": "贝贝", "color": "#173177" } }, "emphasis_keyword": "keyword1.DATA" } util.httpsPostRequest("https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send?access_token=" + access_token, dic, function (success) { console.info('access_tokenerrmsg==' + success.errmsg); }) }, 其余代码: //表单提交 formSubmit: function (e) { if (wx.getStorageSync('isTime') != '') { this.data.isTime = wx.getStorageSync('isTime'); console.log('sync=isTime=', wx.getStorageSync('isTime')); console.log('sync=access_token=', wx.getStorageSync('access_token')); } this.getAccess_token('client_credential', appid, secret, e.detail.formId); }, countdown: function (that, time) { if (time < that.data.timestamp + 60) { console.log('=shijiandao=') that.data.isTime = true; wx.setStorageSync('isTime', that.data.isTime); return; } setTimeout(function () { time = time - 1; that.countdown(that, time); }, 1000) }, |