C#使用HttpWebRequest发送数据和使用HttpWebResponse接收数据的一个简单示例

新建一个.NET Core控制台项目，代码如下所示：

using System;
using System.Text;
using System.Net;
using System.Collections.Generic;namespace NetCoreWebRequest
{class Program{static void Main(string[] args){HttpWebRequest httpWebRequest = WebRequest.Create("http://www.baidu.com") as HttpWebRequest;httpWebRequest.Method = "POST";using (var requestStream = httpWebRequest.GetRequestStream()){byte[] data = Encoding.UTF8.GetBytes("Hello");requestStream.Write(data, 0, data.Length);requestStream.Flush();}using (HttpWebResponse response = httpWebRequest.GetResponse() as HttpWebResponse){using (var responseStream = response.GetResponseStream()){byte[] readBuffer = new byte[1000];List<byte> allData = new List<byte>();int readBytes;do{readBytes = responseStream.Read(readBuffer, 0, readBuffer.Length);for (var i = 0; i < readBytes; i++){allData.Add(readBuffer[i]);}} while (readBytes > 0);//如果readBytes为0表示HttpWebResponse中的所有数据已经被读取完毕string message = Encoding.UTF8.GetString(allData.ToArray());Console.WriteLine(message);}}Console.WriteLine("Press key to end...");Console.ReadKey();}}
}

注意本文阐述的重点是，上面代码中，如果responseStream.Read(readBuffer, 0, readBuffer.Length)返回的值readBytes为 0了，表示HttpWebResponse中的所有数据已经被读取完毕了。

转载于:https://www.cnblogs.com/OpenCoder/p/11350397.html

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