1.定义好pay.wxml
viewclass='btn_box'navigatortarget='miniProgram'extra-data='{{extraData}}'path='pages/index/index'app-id='wxbd687630cd02ce1d'hover-viewclass='btn_btnnor_linear_bg'开通免密支付/view/navigator/view2.设置好pay.js参数处理
varutil=require('../../utils/util.js');constapp=getApp();Page({onShow:function(options){console.log(options,'pay.jsstart');},data:{extraData:'',localCity:''},onLoad:function(){this.setData({extraData:util.getextraData(),localCity:wx.getStorageSync(util.key.cityName)||app.globalData.baseInfo.cityName})}})绑定免密签证参数设置：
functiongetextraData(){constapp=getApp();varextraDataValue={appid:app.globalData.baseInfo.appId,mch_id:app.globalData.baseInfo.mchId,sub_mch_id:app.globalData.baseInfo.subMchId,notify_url:app.globalData.baseInfo.notifyUrl,contract_code:config.contractCode,contract_display_account:app.globalData.baseInfo.contractDisplayAccount,plan_id:app.globalData.baseInfo.planId,request_serial:config.requestSerial,timestamp:config.timestamp,sub_appid:app.globalData.baseInfo.subAppId};varextraDataSortValue=getSort(extraDataValue);varsignValue=getSign(extraDataSortValue,app.globalData.baseInfo.appSecret);extraDataValue['sign']=signValue;log(TAG,"signSign=["+signValue+"]length="+String(signValue).length);returnextraDataValue;}例如：
3.app.js中处理绑定后返回值
onShow:function(options){letthat=this;varbindStatus=wx.getStorageSync(util.key.bindStatus)||0;if(options.scene==1038){varerrorCode=options.referrerInfo&&options.referrerInfo.extraData&&options.referrerInfo.extraData.return_code?options.referrerInfo.extraData.return_code:'';if(errorCode=='SUCCESS'){varappid=options.referrerInfo.appId;varcontractId=options.referrerInfo.extraData.contract_id;console.log("签约成功");that.globalData.baseInfo.appid=appid;that.globalData.baseInfo.contractId=contractId;that.globalData.baseInfo.contractIds=contractId;that.globalData.baseInfo.bindStatus=1;wx.setStorageSync(util.key.bindStatus,1);//addbywupengforjumpscan//认证绑定后通过navigateBack跳转到首页scan可以直接退出varpagelist=getCurrentPages();varlen=pagelist.length;varinit=0;varindex=0;for(vari=0;ilen;i++){if(pagelist[i].route.indexOf("scan/scan")=0){//看路由里面是否有首页init=1;index=i;}}if(init==1){wx.navigateBack({delta:len-index-1});}else{wx.reLaunch({url:"../scan/scan"//这个是默认的单页});}//endaddbywupeng20180921}else{varmsg=options.referrerInfo.extraData.return_msg;wx.showModal({title:errorCode,content:msg,});console.log(TAG+':签约失败');}}//}},