从 .NET 6 开始,将以下 API 标记为已过时。 在代码中使用这些 API 会在编译时生成警告 SYSLIB0014。
HttpWebRequest通过ServicePoint设置,我们通过反编译看到HttpWebRequest构造函数。 ServicePoint.DefaultConnectionLimit获取允许的最大并发连接数。 对于 ASP.NET 托管的应用程序,默认连接限制为 10,对于所有其他应用程序,默认连接限制为 2。 DefaultConnectionLimit 对现有 ServicePoint 对象没有影响;它只影响更改后初始化的对象。
HttpWebRequest通过ServicePoint设置,我们通过反编译看到HttpWebRequest构造函数。 图片 ServicePoint.DefaultConnectionLimit获取允许的最大并发连接数。 DefaultConnectionLimit 对现有 ServicePoint 对象没有影响;它只影响更改后初始化的对象。
request.ContentType = "application/json;"; request.Timeout = 20000; request.ServicePoint.Expect100Continue strValue = ex.Message; } return strValue; } request.ServicePoint.Expect100Continue
操作的话要用Uploadxxx函数 传两个参数为url和提交数据 如果要返回二进制数据而不是字符串的话 要用到xxxData函数 用Byte()类型的变量接收即可 还有程序初始化的时候不要忘了加上 ServicePoint.Expect100Continue req.Headers.Set("cache-control", "no-cache") req.ContentType = "application/x-www-form-urlencoded" req.ServicePoint.Expect100Continue
解决第一次调用慢的问题 request.Proxy = null; //多线程并发调用时默认2个http连接数限制的问题,讲其设为1000 ServicePoint currentServicePoint = request.ServicePoint; currentServicePoint.ConnectionLimit = 1000; = false; //是否使用Nagle:不使用,提高效率 request.ServicePoint.UseNagleAlgorithm = false ; //设置最大连接数 request.ServicePoint.ConnectionLimit = 65500; //指定压缩方法 currentServicePoint = request.ServicePoint; Stream dataStream = request.GetRequestStream
userAgent; 17 httpWebRequest.AllowAutoRedirect = _allowAutoRedirect; 18 httpWebRequest.ServicePoint.Expect100Continue
request.Headers.Add("Proxy-Tunnel", String.valueOf(tunnel)); //request.Timeout = 20000; //request.ServicePoint.ConnectionLimit
public void servicePoint() { // Do nothing } @Around("servicePoint()") public Object
request.Headers.Add("Proxy-Tunnel", String.valueOf(tunnel)); //request.Timeout = 20000; //request.ServicePoint.ConnectionLimit
request.Headers.Add("Proxy-Tunnel", String.valueOf(tunnel)); //request.Timeout = 20000; //request.ServicePoint.ConnectionLimit
request.Headers.Add("Proxy-Tunnel", String.valueOf(tunnel)); //request.Timeout = 20000; //request.ServicePoint.ConnectionLimit
request.Headers.Add("Proxy-Tunnel", String.valueOf(tunnel)); //request.Timeout = 20000; //request.ServicePoint.ConnectionLimit
;// request.Headers.Add("Proxy-Tunnel", String.valueOf(tunnel));//request.Timeout = 20000;//request.ServicePoint.ConnectionLimit
request.Headers.Add("Proxy-Tunnel", String.valueOf(tunnel)); //request.Timeout = 20000; //request.ServicePoint.ConnectionLimit
request.Headers.Add("x-requested-with", "XMLHttpRequest"); request.ServicePoint.Expect100Continue
request.Headers.Add(“Proxy-Tunnel”, String.valueOf(tunnel)); //request.Timeout = 20000; //request.ServicePoint.ConnectionLimit
/ request.Headers.Add("Proxy-Tunnel", String.valueOf(tunnel)); //request.Timeout = 20000; //request.ServicePoint.ConnectionLimit
;// request.Headers.Add("Proxy-Tunnel", String.valueOf(tunnel));//request.Timeout = 20000;//request.ServicePoint.ConnectionLimit
request.Headers.Add("Proxy-Tunnel", String.valueOf(tunnel)); //request.Timeout = 20000; //request.ServicePoint.ConnectionLimit