C#中Content-Type: application/x-www-form-urlencoded请求报错The remote server returned an error: (400) .
请求代码如下
/// <summary>
///
/// </summary>
/// <param name="url">为请求地址</param>
/// <param name="postData">请求内容例如:"key1=value1&key2=value2&key3=value3"</param>
/// <returns></returns>
public static string PostUrl(string url, string postData)
{
string result = "";
try
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
req.Timeout = 800;//请求超时时间
byte[] data = Encoding.UTF8.GetBytes(postData);
req.ContentLength = data.Length;
using (Stream reqStream = req.GetRequestStream())
{
reqStream.Write(data, 0, data.Length);
reqStream.Close();
}
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
Stream stream = resp.GetResponseStream();
//获取响应内容
using (StreamReader reader = new StreamReader(stream, Encoding.UTF8))
{
result = reader.ReadToEnd();
}
}
catch (Exception e) { }
return result;
}