微信小程序支付前端源码

},//点击支付按钮进行支付
payclick: function () {
var t = this;
wx.login({
//获取code换取openID
success: function (res) {
//code = res.code //返回code
console.log("获取code");
console.log(res.code);
var opid = t.getOpenId(res.code);
}
})
},//获取openID
getOpenId: function (code) {
var that = this;
wx.request({
url: "https://api.weixin.qq.com/sns/jscode2session?appid=你的appid&secret=AppSecret(小程序密钥)&js_code=" + code + "&grant_type=authorization_code",data: {},method: 'GET',success: function (res) {
console.log("获取openid")
console.log(res)
that.setData({
openid: res.data.openid,session_key: res.data.session_key
})
that.generateOrder(res.data.openid)
},fail: function () {
// fail
},complete: function () {
// complete
}
})
},//生成商户订单
generateOrder: function (openid) {
var that = this
wx.request({
url: 'http://localhost:25492/wx/getda',//后台请求地址
method: 'GET',data: {
gfee: '商品价钱',gname: '商品名称',openId: openid
//（商品价钱和商品名称根据自身需要是否传值,openid为必传）
},success: function (res) {
console.log("后台获取数据成功");
console.log(res);
var param = { "timeStamp": res.data.timeStamp,"package": res.data.package,"paySign": res.data.paySign,"signType": "MD5","nonceStr": res.data.nonceStr };
//发起支付
that.pay(param);
},fail: function (res) {
console.log("向后台发送数据失败")
}
})
},//支付
pay: function (param) {
var that = this;
console.log("发起支付")
console.log(param)
wx.requestPayment({
timeStamp: param.timeStamp,nonceStr: param.nonceStr,package: param.package,signType: param.signType,paySign: param.paySign,success: function (res) {
console.log("success");
console.log(res);
},fail: function (res) {
console.log("fail")
console.log(res);
},complete: function (res) {
console.log("complete");
console.log(res)
}
})
}
})