调用赋码远程服务异常_用REST方式访问wcf服务，post时老报“远程服务器返回异常: (400) 异常的请求”...
用REST方式访问wcf服务，post时老报“远程服务器返回错误: (400) 错误的请求”
先贴代码
string id = "12qwsfsfasfsaf";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://xxx/GetProduct.svc/GetStudentById");
System.Net.ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
request.Method = "POST";
request.ContentType = "application/json";
request.Accept = "application/json";
request.ContentLength = Encoding.UTF8.GetByteCount(id);
Stream myRequestStream = request.GetRequestStream();
StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));
myStreamWriter.Write(id);
myStreamWriter.Close();
//HttpWebResponse response = (HttpWebResponse)request.GetResponse();
HttpWebResponse response;
try
{
response = (HttpWebResponse)request.GetResponse();
}
catch (WebException ex)
{
response = (HttpWebResponse)ex.Response;
}
StreamReader sr = new StreamReader(response.GetResponseStream());
string jsonstr = sr.ReadToEnd();
奇葩的是只要参数是以数字开头的就不会报错，反之就报错，有谁遇到过这个问题没？
------解决思路----------------------
request.ContentLength = Encoding.UTF8.GetByteCount(id);
Stream myRequestStream = request.GetRequestStream();
StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));
你计算长度的时候用UTF8，而实际写入时用gb2312，可能会造成问题。
改成这样试一试
byte[] bytes = Encoding.UTF8.GetBytes(id);
//如果想用gb2312就使用
// byte[] bytes = Encoding.GetEncoding("gb2312").GetBytes(id);
request.ContentLength = bytes.Length;
Stream myRequestStream = request.GetRequestStream();
myStreamWriter.Write(bytes, 0, bytes.Length);
myStreamWriter.Close();