/// <summary>
/// 生成直接支付url，支付url有效期为2小时,模式二
/// </summary>
/// <param name="productId">商品ID</param>
/// <returns>模式二URL</returns>
public static string GetPayUrl(string productId)
{
WxPayData data = new WxPayData();
data.SetValue("body", "test"); //商品描述
data.SetValue("attach", "test"); //附加数据
data.SetValue("out_trade_no", CommonHelper.CreateOutTradeNo()); //随机字符串
data.SetValue("total_fee", 1); //总金额
data.SetValue("time_start", DateTime.Now.ToString("yyyyMMddHHmmss")); //交易起始时间
data.SetValue("time_expire", DateTime.Now.AddMinutes(10).ToString("yyyyMMddHHmmss")); //交易结束时间
data.SetValue("goods_tag", "jjj"); //商品标记
data.SetValue("trade_type", "NATIVE"); //交易类型
data.SetValue("product_id", productId); //商品ID
WxPayData result = WxPayAPI2.UnifiedOrder(data); //调用统一下单接口
string url = result.GetValue("code_url").ToString(); //获得统一下单接口返回的二维码链接
return(url);
}
/// <summary>
///
/// </summary>
/// <param name="openId"></param>
/// <param name="productId"></param>
/// <returns></returns>
private WxPayData UnifiedOrder(string openId, string productId)
{
//统一下单
WxPayData req = new WxPayData();
req.SetValue("body", "test");
req.SetValue("attach", "test");
req.SetValue("out_trade_no", CommonHelper.CreateOutTradeNo());
req.SetValue("total_fee", 1);
req.SetValue("time_start", DateTime.Now.ToString("yyyyMMddHHmmss"));
req.SetValue("time_expire", DateTime.Now.AddMinutes(10).ToString("yyyyMMddHHmmss"));
req.SetValue("goods_tag", "test");
req.SetValue("trade_type", "NATIVE");
req.SetValue("openid", openId);
req.SetValue("product_id", productId);
WxPayData result = WxPayAPI2.UnifiedOrder(req);
return(result);
}
/// <summary>
/// 调用统一下单，获得下单结果
/// </summary>
/// <returns>统一下单结果</returns>
public WxPayData GetUnifiedOrderResult()
{
//统一下单
WxPayData data = new WxPayData();
data.SetValue("body", "test");
data.SetValue("attach", "test");
data.SetValue("out_trade_no", CommonHelper.CreateOutTradeNo());
data.SetValue("total_fee", total_fee);
data.SetValue("time_start", DateTime.Now.ToString("yyyyMMddHHmmss"));
data.SetValue("time_expire", DateTime.Now.AddMinutes(10).ToString("yyyyMMddHHmmss"));
data.SetValue("goods_tag", "test");
data.SetValue("trade_type", "JSAPI");
data.SetValue("openid", openid);
WxPayData result = WxPayAPI2.UnifiedOrder(data);
if (!result.IsSet("appid") || !result.IsSet("prepay_id") || result.GetValue("prepay_id").ToString() == "")
{
throw new WxPayException("UnifiedOrder response error!");
}
unifiedOrderResult = result;
return(result);
}