//组合xml内容
StringBuilder strBuilder = new StringBuilder();
var par= @"<xml>
<appid>wx2421b1c4370ec43b</appid>
<attach>支付测试</attach>
<body>H5支付测试</body>
<mch_id>10000100</mch_id>
<nonce_str>1add1a30ac87aa2db72f57a2375d8fec</nonce_str>
<notify_url>http://wxpay.wxutil.com/pub_v2/pay/notify.v2.php</notify_url>
<openid>oUpF8uMuAJO_M2pxb1Q9zNjWeS6o</openid>
<out_trade_no>1415659990</out_trade_no>
<spbill_create_ip>14.23.150.211</spbill_create_ip>
<total_fee>1</total_fee>
<trade_type>MWEB</trade_type>
<scene_info>{""h5_info"": {""type"":""IOS"",""app_name"": ""王者荣耀"",""package_name"": ""com.tencent.tmgp.sgame""}}</scene_info>
<sign>0CB01533B8C1EF103065174F50BCA001</sign>
</xml> ";
strBuilder.Append(par);
string data = strBuilder.ToString();
//进行utf-8编码
var encoding = Encoding.GetEncoding("utf-8");
byte[] buffer = encoding.GetBytes(data);
//根据webURL创建HttpWebRequest对象
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "post";
//request.Headers.Add("charset:utf-8");
request.ContentLength = buffer.Length;
request.ContentType = "text/xml";
StreamWriter myWriter = null;
try
{
myWriter = new StreamWriter(request.GetRequestStream());
myWriter.Write(data);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
finally
{
myWriter.Close();
}
//读取服务器返回的信息
HttpWebResponse objResponse = (HttpWebResponse)request.GetResponse();
using (StreamReader sr = new StreamReader(objResponse.GetResponseStream()))
{
string result = string.Empty;
result = sr.ReadToEnd();
Console.WriteLine(result);
var resultStr = XElement.Parse("result");
var result_code = resultStr.Element("return_code").Value;
var result_msg = resultStr.Element("return_msg").Value;
}