業(yè)務(wù)流程
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- 在后臺(tái)調(diào)用統(tǒng)一下單接口獲取prepay_id（預(yù)支付交易會(huì)話標(biāo)識(shí)）
- 小程序端調(diào)用支付API喚起支付
- 完整支付族阅，后調(diào)鏈接中更新訂單信息
步驟一：商戶在小程序中先調(diào)用該接口在微信支付服務(wù)后臺(tái)生成預(yù)支付交易單篓跛，返回正確的預(yù)支付交易后調(diào)起支付。
使用了支付工具包：best-pay-sdk
<dependency>
<groupId>cn.springboot</groupId>
<artifactId>best-pay-sdk</artifactId>
<version>1.3.0.BETA</version>
</dependency>
相關(guān)代碼：
/** * 請(qǐng)求微信后臺(tái)統(tǒng)一下單 * 喚起微信支付 */
WxPayConfig wxPayConfig = new WxPayConfig();
wxPayConfig.setMiniAppId(wechatAccountConfig.getMiniAppId());
wxPayConfig.setAppSecret(wechatAccountConfig.getMiniAppSecret());
wxPayConfig.setMchId(wechatAccountConfig.getMchId());
wxPayConfig.setMchKey(wechatAccountConfig.getMchKey());
wxPayConfig.setNotifyUrl(wechatAccountConfig.getNotifyUrl());
bestPayService.setWxPayConfig(wxPayConfig); PayRequest payRequest = new PayRequest();
payRequest.setPayTypeEnum(BestPayTypeEnum.WXPAY_MINI); payRequest.setOrderId(orderId);
payRequest.setOrderName("微信小程序支付訂單"); payRequest.setSpbillCreateIp(ip);
payRequest.setOrderAmount(priceSum); payRequest.setOpenid(order.getOpenid()); PayResponse
response = bestPayService.pay(payRequest); log.info("【發(fā)起支付】request={}",
JsonUtil.toJson(payRequest)); response.setOrderId(orderId);
return Result.ok(response);
步驟二：微信小小程序端調(diào)用支付api,喚起支付
相關(guān)代碼
api._post('/wx/api/payorder', data).then(res => {
console.log(res.result)
if (res.success) { //微信統(tǒng)一下單 喚起微信支付
wx.requestPayment({
timeStamp: res.result.timeStamp,
nonceStr: res.result.nonceStr,
package: res.result.package,
signType: res.result.signType,
paySign: res.result.paySign,
success(r) { },
fail(r) {
var data = { }
api._post('/wx/api/updataorder', data).then(res => {})
}
})
}
})
步驟三：異步回調(diào)中校驗(yàn)金額坦刀，更新訂單
相關(guān)代碼
/**
* 微信支付異步回調(diào)
* 注意:這里金額和訂單中的對(duì)比
* @param req
* @return
*/
@RequestMapping(value = "/notify", method = RequestMethod.POST)
public ModelAndView notify(@RequestBody String notifyData){
log.info("【異步通知】支付平臺(tái)的數(shù)據(jù)request={}", notifyData);
PayResponse response = bestPayService.asyncNotify(notifyData);
log.info("【異步通知】處理后的數(shù)據(jù)data={}", JsonUtil.toJson(response));
//返回成功信息給支付平臺(tái)愧沟，否則會(huì)不停的異步通知
if (response.getPayPlatformEnum() == BestPayPlatformEnum.WX) {
log.info("支付成功");
return new ModelAndView("pay/responeSuccessForWx");
}else if (response.getPayPlatformEnum() == BestPayPlatformEnum.ALIPAY) {
return new ModelAndView("pay/responeSuccessForAlipay");
}
throw new RuntimeException("錯(cuò)誤的支付平臺(tái)");
}
注意：
1.回調(diào)通知注意事項(xiàng)：https://pay.weixin.qq.com/wiki/doc/api/wxa/wxa_api.php?chapter=23_8&index=5
2.只要支付成功在異步回調(diào)
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