uniapp 微信公众号支付

uniapp微信公众号支付需要通过网页授权获取微信的code来实现。首先，需要在配置中设置回调域名。然后，通过后端接口获取支付配置信息。对于微信支付，可以使用以下代码获取配置信息：

await this.$http({
  apiName: "wxPayConfig",
  type: "POST",
  data: {
    orderId: this.orderId
  }
}).then(res => {
  // 处理返回的支付配置信息
}).catch(_ => {
  // 处理异常情况
});

对于支付宝支付，需要单独从接口获取配置信息，得到的是一长串字符串：

await this.$http({
  apiName: "aliPay",
  type: "POST",
  data: {
    orderNo: this.orderId
  }
}).then(res => {
  // 处理返回的支付配置信息
}).catch(_ => {
  // 处理异常情况
});

通过以上步骤，可以在uniapp中实现微信公众号支付。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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