关于HttpWebRequest和HttpWebResponse的两个自定义方法

最新推荐文章于 2017-06-01 11:48:47 发布

原创最新推荐文章于 2017-06-01 11:48:47 发布 · 1.5k 阅读

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#跨域传数据

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本文介绍了使用C#实现HTTP GET和POST请求的方法。GET请求通过URL传递参数，而POST请求则将参数放在请求体中，并设置了正确的Content-Type。文章提供了具体的代码示例，展示了如何发送这两种类型的请求并接收响应。

1.Get方式传数据

        public static string MyHttpGet(string Url, string postDataStr)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr);
            request.Method = "GET";
            request.ContentType = "text/html;charset=UTF-8";
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream myResponseStream = response.GetResponseStream();
            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
            string retString = myStreamReader.ReadToEnd();
            myStreamReader.Close();
            myResponseStream.Close();
            return retString;
        }

          2.Post方式传数据
        public static string MyHttpPost(string Url, string postDataStr)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
            request.Method = "POST";
            request.ContentType = "multipart/form-data;boundary=----------" + DateTime.Now.Ticks.ToString("x");//表头的格式必须要写,否则请求响应的页面得不到要传递的值
            byte[] SomeBytes = Encoding.ASCII.GetBytes(postDataStr);//传递的值
            request.ContentLength = SomeBytes.Length;
            Stream newStream = request.GetRequestStream();//把传递的值写到流中
            newStream.Write(SomeBytes, 0, SomeBytes.Length);
            newStream.Close();//必须要关闭请求
            HttpWebResponse httpWebResponse = null;
            httpWebResponse = (HttpWebResponse)request.GetResponse();
            Stream s = httpWebResponse.GetResponseStream();
            StreamReader reader = new StreamReader(s, Encoding.GetEncoding("utf-8"));
            string respText = reader.ReadToEnd();
            s.Close();
            return respText;
        }