.NET Core之微信支付之公众号、H5支付详解_实用技巧_

 public class WeChatPayPubPayViewModel { [Required] [Display(Name = "out_trade_no")] public string OutTradeNo { get; set; } [Required] [Display(Name = "body")] public string Body { get; set; } [Required] [Display(Name = "total_fee")] public int TotalFee { get; set; } [Required] [Display(Name = "spbill_create_ip")] public string SpbillCreateIp { get; set; } [Required] [Display(Name = "notify_url")] public string NotifyUrl { get; set; } [Required] [Display(Name = "trade_type")] public string TradeType { get; set; } [Required] [Display(Name = "openid")] public string OpenId { get; set; } }

 //微信支付请求客户端（用于处理请求与响应） private readonly IWeChatPayClient _client; private readonly ILogger _logger; private IHttpContextAccessor _accessor; public WeChatPayController(IWeChatPayClient client, IHttpContextAccessor accessor, ILogger logger) { _client = client; _accessor = accessor; _logger = logger; } /// 
 /// 公众号支付 /// 
 ///  [HttpGet] public IActionResult PubPay() { WeChatPayPubPayViewModel payModel=new WeChatPayPubPayViewModel() { Body = "微信公众号支付测试", OutTradeNo = DateTime.Now.ToString("yyyyMMddHHmmssfff"), TotalFee = 1,//分 单位 SpbillCreateIp = "127.0.0.1", NotifyUrl = "http://pay.one.com/notify/wechatpay/unifiedorder", TradeType = "JSAPI", OpenId = "" //此处需进行授权 获取OpenId }; return View(payModel); } /// 
 /// 公众号支付 /// 
 ///  ///  [HttpPost] public async Task PubPay(WeChatPayPubPayViewModel viewModel) { if(string.IsNullOrEmpty(viewModel.OpenId)) { ViewData["response"] = "请返回上级重新进入此页面以获取最新数据"; return View(); } var request = new WeChatPayUnifiedOrderRequest { Body = viewModel.Body, OutTradeNo = viewModel.OutTradeNo, TotalFee = viewModel.TotalFee, SpbillCreateIp = viewModel.SpbillCreateIp, NotifyUrl = viewModel.NotifyUrl, TradeType = viewModel.TradeType, OpenId = viewModel.OpenId //此处需进行授权 获取OpenId }; var response = await _client.ExecuteAsync(request);if (response.ReturnCode == "SUCCESS" && response.ResultCode == "SUCCESS") { var req = new WeChatPayH5CallPaymentRequest { Package = "prepay_id=" + response.PrepayId }; var parameter = await _client.ExecuteAsync(req); // 将参数(parameter)给 公众号前端 让他在微信内H5调起支付(https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=7_7&index=6) ViewData["parameter"] = JsonConvert.SerializeObject(parameter); ViewData["response"] = response.Body; return View(); } ViewData["response"] = response.Body; return View(); } 

 @using Newtonsoft.Json @model WeChatPayPubPayViewModel @{ ViewData["Title"] = "公众号支付-统一下单"; } 
提交请求立即支付
Response:@ViewData["response"]
Parameter:@ViewData["parameter"]
 @section Scripts { @{await Html.RenderPartialAsync("_ValidationScriptsPartial"); } } 

 [HttpGet] public async Task PayBack() { var code = Request.Query["code"]; var state = Request.Query["state"]; OAuthToken tokenModel = new OAuthToken(); //通过code换取token if (!string.IsNullOrEmpty(code)) { _logger.LogWarning("授权成功"); ViewBag.Code = code; tokenModel = OauthApi.GetAuthToken(code, wechatAppId); } var request = new WeChatPayUnifiedOrderRequest { Body = "微信公众号支付测试", OutTradeNo = DateTime.Now.ToString("yyyyMMddHHmmssfff"), TotalFee = 1,//分 单位 SpbillCreateIp = "127.0.0.1", NotifyUrl = "http://pay.one.com/notify/wechatpay/unifiedorder", TradeType = "JSAPI", OpenId = tokenModel.Openid //此处需进行授权 获取OpenId }; var response = await _client.ExecuteAsync(request); _logger.LogWarning($"统一下单接口返回：{response.ReturnCode}"); if (response.ReturnCode == "SUCCESS" && response.ResultCode == "SUCCESS") { var req = new WeChatPayH5CallPaymentRequest { Package = "prepay_id=" + response.PrepayId }; var parameter = await _client.ExecuteAsync(req); // 将参数(parameter)给 公众号前端 让他在微信内H5调起支付(https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=7_7&index=6) ViewData["parameter"] = JsonConvert.SerializeObject(parameter); _logger.LogWarning($"统一下单成功，即将调起微信支付：{ViewData["parameter"].ToString()}"); ViewData["response"] = response.Body; return View(); } ViewData["response"] = response.Body; return View(); } 

 /// 获取网页授权token时，返回的实体 ///  public class OAuthToken : BaseRes { /// 
 /// 网页授权接口调用凭证。注意：此access_token与基础支持的access_token不同 /// 
 [JsonProperty("access_token")] public string AccessToken { get; set; } private int _expiresIn; /// 
 /// access_token接口调用凭证超时时间，单位（秒） /// 
 [JsonProperty("expires_in")] public int ExpiresIn { get { return _expiresIn; } set { ExpiresTime = DateTime.Now.AddSeconds(value); _expiresIn = value; } } /// 
 /// 用于刷新access_token /// 
 [JsonProperty("refresh_token")] public string RefreshToken { get; set; } /// 
 /// 用户唯一标识。请注意，在未关注公众号时，用户访问公众号的网页，也会产生一个用户和公众号唯一的openid /// 
 [JsonProperty("openid")] public string Openid { get; set; } /// 
 /// 用户授权的作用域，使用逗号（,）分隔 /// 
 [JsonProperty("scope")] public string Scope { get; set; } [JsonProperty("expires_time")] public DateTime ExpiresTime { get; set; } /// 
 /// 只有在用户将公众号绑定到微信开放平台账号后，才会出现该字段 /// 
 [JsonProperty("unionid")] public string Unionid { get; set; } } 

 [Route("notify/wechatpay")] public class WeChatPayNotifyController : Controller { private readon
                
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