点击刷新
static void Main(string[] args)
{
new Task(() =>
{
Invoke();
}).Start();
Console.WriteLine("我是主线程");
Console.ReadKey();
}
public static async void Invoke()
{
var result = Keep();
Console.WriteLine("执行其他的");
string str = await result; //等待返回
Console.WriteLine(str); //输出返回
}
public static async Task<string> Keep()
{
HttpWebRequest request = WebRequest.Create("http:/*****************") as HttpWebRequest;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded; charset=UTF-8"; //这里一定不要忘记了 我排查了好久 发现这里没有写这一句 弄的怀疑人生了 后来通过抓包对比 才发现这个差距 粗心了
string data = "userId=7c509e59-9179-4fc3-b00a-a33007b1068e&agentId=2acbf00f-aa58-44f6-88c8-6d7027b78a7f&companyId=64436ad0-8ef4-430a-b6a4-08cac3b19c0a&versionTime=1553654309167";
byte[] buf = System.Text.Encoding.GetEncoding("UTF-8").GetBytes(data);
request.ContentLength = buf.Length;
Stream newStream = request.GetRequestStream();
newStream.Write(buf, 0, buf.Length);
newStream.Close();
HttpWebResponse response = await request.GetResponseAsync() as HttpWebResponse;
StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding("UTF-8"));
string result = reader.ReadToEnd();
return result;
}
如果你不写 request.ContentType 那么用下面的这种也可以
static void Main(string[] args)
{
new Task(() =>
{
Invoke();
}).Start();
Console.WriteLine("我是主线程");
Console.ReadKey();
}
public static async void Invoke()
{
var result = Keep();
Console.WriteLine("执行其他的");
string str = await result; //等待返回
Console.WriteLine(str); //输出返回
}
public static async Task<string> Keep()
{
string url = "http://message.sungoin.com/platform-message/getPlatformClientMsg";
string data = "userId=7c509e59-9179-4fc3-b00a-a33007b1068e&agentId=2acbf00f-aa58-44f6-88c8-6d7027b78a7f&companyId=64436ad0-8ef4-430a-b6a4-08cac3b19c0a&versionTime=1553654309167";
url = url + "?" + data;
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
request.Method = "POST";
HttpWebResponse response = await request.GetResponseAsync() as HttpWebResponse;
StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding("UTF-8"));
string result = reader.ReadToEnd();
return result.ToString();
}
============================================2020年6月28日再次编辑=========================================================
今天看到一篇异步请求的文章，然后点进去一看，发现是自己写的，这感觉有点怪异，
然后我决定更新一下这个博客吧，都2020了，还用老版本的那种写法，很麻烦的。本来也是很简单的东西，但是看着别扭。
HttpClient 的异步操作 还是写一下吧！ 现在谁还用HttpWebRequest 写起来麻烦的要死
public async Task<string> Post()
{
HttpClient httpClient=new HttpClient();
HttpContent httpContent = new StringContent("");
var response = await httpClient.PostAsJsonAsync(url, httpContent);
var content = await response.Content.ReadAsStringAsync();
httpContent.Dispose();
return content;
}
public async Task<string> Get()
{
HttpClient httpClient=new HttpClient();
var response = await httpClient.GetStringAsync(url);
httpContent.Dispose();
}
这段代码与上面还有有区别的
区别在于，上述部分是直接一个线程，由这个线程去进行http请求，来达到异步的效果
这一段呢！是这个http请求这一个过程异步。
这边就不写具体验证代码了。
public async string Post()
{
HttpClient httpClient=new HttpClient();
HttpContent httpContent = new StringContent("");
var response = httpClient.PostAsJsonAsync(url, httpContent);
var content = response.Content.ReadAsStringAsync();
httpContent.Dispose();
return content;
}
非异步
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