实现方法
实现流程
- 用户在移动端浏览器中发起银联支付
- 商户系统调用 OTT Pay API 进行支付,OTT Pay 服务器返回 Form(HTML)
- 商户系统将此 Form(HTML) 嵌入到前端网页中,通过代码提交此 Form (可以做成支付按钮由用户点击进行提交) 会调起银联支付页面或云闪付 APP 进行支付
- 支付完成前端会跳转到请求参数中指定的 returnURL
- 支付结果也会通过回调的方式通知到商户系统
代码示例
获得 Form 代码:
Map<String, Object> data = new HashMap<>();
data.put("amount", "100");
data.put("callbackURL", "https://your.callback.url");
data.put("returnURL", "https://your.return.url");
Gson gson = new Gson();
RequestBody body = RequestBody.create(gson.toJson(data), MediaType.parse("application/json; charset=utf-8"));
String token = "eyJhbGciOiJIUzUxMiJ9.eyJzdWIiOiJPTjAwMDAwMDk3MTMwIiwiYXVkaWVuY2UiOm51bGwsInJvbGUiOm51bGwsImNyZWF0ZWQiOjE2NzgyMTU4MDU2NjYsInVzZXJ0eXBlIjoiQ1VTVE9NRVIiLCJleHAiOjE2NzgyMjQ4MDUsInVzZXJpZCI6MTMwfQ.WVpasVp958R6kHOcqC3QgQjCqTXIkyagutkONxCV97yT_hmp9Q6WaZ921cjxhzJA4v2Bhd0RTF5QHMLddVnzOQ";
Request request = new Request.Builder()
.url("https://ecom-api.ottpay.com/api/v1/pay/unionpay/web-secure-pay")
.addHeader("Authorization", "Bearer " + token)
.post(body)
.build();
final OkHttpClient httpClient = new OkHttpClient();
try (Response response = httpClient.newCall(request).execute()) {
if (!response.isSuccessful()) {
System.out.println(response.body().string());
throw new IOException("Unexpected code " + response);
}
// 响应结果
System.out.println(response.body().string());
} catch (IOException e) {
throw new RuntimeException(e);
}
WEB APP 代码示例: