支付宝支付流程解读

1. bizContent={
2. "out_trade_no":"20220923010102211",//商户交易号，确保唯一,
3. "total_amount":0.01,//订单总金额
4. "subject":"手机网站支付",//订单标题
5. "product_code":"QUICK_WAP_WAY",
6. "timeout_express":"30m",//可选，订单相对超时时间，在订单创建后开始生效，超时未支付订单将关闭。
7. "quit_url":"http:\/\/domain.com\/quit",//用户付款中途退出返回商户网站的地址
8. "business_params":"{\"data\":123}",//非必填,业务信息,具体值要和支付宝约定
9. "passback_params":"merchantBizType%3d3C%26merchantBizNo%3d2016010101111"//非必填,商户自定义参数需要urlEncode
10. }

1. AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, APP_PRIVATE_KEY, "json", CHARSET, ALIPAY_PUBLIC_KEY, "RSA2"); //获得初始化的AlipayClient
2. AlipayTradeWapPayRequest alipayRequest = new AlipayTradeWapPayRequest();//创建API对应的request
3. alipayRequest.setReturnUrl("http://domain.com/CallBack/return_url.jsp");
4. alipayRequest.setNotifyUrl("http://domain.com/CallBack/notify_url.jsp");//在公共参数中设置回跳和通知地址
5. alipayRequest.setBizContent(参考上面bizContent值示例);
6. try {
7.  form = alipayClient.pageExecute(alipayRequest).getBody(); //调用SDK生成表单
8. } catch (AlipayApiException e) {
9.  e.printStackTrace();
10. }