发布:2022/10/21 16:46:46作者:管理员 来源:本站 浏览次数:757
1、使用Nuget,对WebAPI项目添加WebApiThrottle的引用
2、进行注册,一般是在WebApiConfig的Register方法里添加,代码如下:
config.Filters.Add(new CustomThrottlingFilter()
{
Policy = new ThrottlePolicy()
{
//ip配置区域
IpThrottling = true,
ClientThrottling = true,
//端点限制策略配置会从EnableThrottling特性中获取。
EndpointThrottling = true
}
});
其中CustomThrottlingFilter是自己重写的ThrottlingFilter,也可以直接用默认配置。我自定义的CustomThrottlingFilter如下:
publicclass CustomThrottlingFilter : ThrottlingFilter
{
///<summary>/// Sets the indentity.
///</summary>///<param name="request">The request.</param>///<returns>RequestIdentity.</returns>protectedoverride RequestIdentity SetIdentity(HttpRequestMessage request)
{
var sessionId = string.Empty;
try
{
var requestCookie = request.Headers.GetCookies().FirstOrDefault();
if (requestCookie != null)
{
foreach (var item in requestCookie.Cookies.Where(item => item.Name == "Session_Id"))
{
sessionId = item.Value;
break;
}
}
}
catch (Exception)
{
sessionId = string.Empty;
}
returnnew RequestIdentity()
{
ClientKey = string.IsNullOrWhiteSpace(sessionId) ? sessionId : "anon",
ClientIp = base.GetClientIp(request).ToString(),
Endpoint = request.RequestUri.AbsolutePath.ToLowerInvariant()
};
}
}
3、对需要控制的接口或者控制器加上头标示
[EnableThrottling(PerMinute = 12)]//控制访问频率,每分钟最多12次
不需要控制访问频率的可以不加或者加上
[DisableThrotting]
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