C# 如何在 WebMethod 中获取调用者的 IP 地址？
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How do I get the caller's IP address in a WebMethod?
提问by Guy
How do I get the caller's IP address in a WebMethod?
如何在 WebMethod 中获取调用者的 IP 地址？
[WebMethod]
public void Foo()
{
// HttpRequest... ? - Not giving me any options through intellisense...
}
using C# and ASP.NET
使用 C# 和 ASP.NET
采纳答案by Darren Kopp
HttpContext.Current.Request.UserHostAddressis what you want.
回答by Troels Thomsen
The HttpContext is actually available inside the WebServicebase class, so just use Context.Request(or HttpContext.Currentwhich also points to the current context) to get access to the members provided by the HttpRequest.
HttpContext 实际上在WebService基类内部可用，因此只需使用Context.Request（或HttpContext.Current它也指向当前上下文）来访问HttpRequest.
回答by Aaron Powell
Try this:
尝试这个：
string ipAddress = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
Haven't tried it in a webMethod, but I use it in standard HttpRequests
没有在 webMethod 中尝试过，但我在标准 HttpRequests 中使用它
回答by Kev
Try:
尝试：
Context.Request.UserHostAddress
回答by davenpcj
Just a caution. IP addresses can't be used to uniquely identify clients. NAT Firewalls and corporate proxies are everywhere, and hide many users behind a single IP.
只是一个警告。IP 地址不能用于唯一标识客户端。NAT 防火墙和公司代理无处不在，将许多用户隐藏在一个 IP 后面。
回答by depoip
I made the following function:
我做了以下功能：
static public string sGetIP()
{
try
{
string functionReturnValue = null;
String oRequestHttp =
WebOperationContext.Current.IncomingRequest.Headers["User-Host-Address"];
if (string.IsNullOrEmpty(oRequestHttp))
{
OperationContext context = OperationContext.Current;
MessageProperties prop = context.IncomingMessageProperties;
RemoteEndpointMessageProperty endpoint =
prop[RemoteEndpointMessageProperty.Name] as RemoteEndpointMessageProperty;
oRequestHttp = endpoint.Address;
}
return functionReturnValue;
}
catch (Exception ex)
{
return "unknown IP";
}
}
This work only in Intranet, if you have some Proxy or natting you should study if the original IP is moved somewhere else in the http packet.
这仅在 Intranet 中工作，如果您有一些 Proxy 或 natting，您应该研究原始 IP 是否移动到 http 数据包中的其他位置。
