该请求给出以下错误:
远程服务器返回错误:(400)错误的请求。

我在互联网上找不到解决方案。有谁知道如何解决这个问题?

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(@"https://maps.googleapis.com/maps/api/geocode/json");
            request.ContentType = "application/x-www-form-urlencoded";
            request.Method = "POST";
            var parameters = string.Format("language={0}&latlng={1}&client={2}&signature={3}", "nl", "51.123456,5.612345", "gme-aa", "******_******=");

            byte[] byteArray = Encoding.UTF8.GetBytes(parameters);
            request.ContentLength = byteArray.Length;
            Stream dataStream = request.GetRequestStream();
            dataStream.Write(byteArray, 0, byteArray.Length);
            dataStream.Close();

            /*
             * Read HttpWeb Response
             */
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            dataStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(dataStream);
            string Response = reader.ReadToEnd();
            response.Close();


编辑:

我正在使用Lowcode平台Outsystems。外部系统在WebRequest.Create()中创建没有参数的URL。因此,我有权访问webRequest对象,并且需要传递参数。

最佳答案

您必须使用HTTP“ GET”方法。

在GET请求中,您将参数作为查询字符串的一部分传递。

HttpWebRequest request = (HttpWebRequest)WebRequest.Create($"https://maps.googleapis.com/maps/api/geocode/json?language=fr&latlng=51.123456,5.612345&key={apiKey}");
request.ContentType = "application/x-www-form-urlencoded";
request.Method = "GET";

using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
    string result = new StreamReader(response.GetResponseStream()).ReadToEnd();
}

07-24 09:50
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