.Net 6 在静态类中使用HttpContext，解决HttpContext为null
public class MyClass
{
//声明一个 IServiceCollection 接口类
public static IServiceCollection? serviceCollection;
//获取到 HttpContext 对象
public static HttpContext Current
{
get
{
object factory = serviceCollection.BuildServiceProvider().GetService(typeof(IHttpContextAccessor));
HttpContext context = ((IHttpContextAccessor)factory).HttpContext;
return context;
}
}
/// <summary>
/// 添加cookie
/// </summary>
/// <param name="key">键</param>
/// <param name="value">值</param>
/// <param name="days">过期时间</param>
public static void SetCookie(string key, string value,int days=3)
{
//如果有密钥 进行加密
if (!string.IsNullOrEmpty(secret))
{
value= value.MD5Encrypt(secret);
}
CookieOptions options = new CookieOptions();
options.Expires = DateTime.Now.AddDays(days);//过期时间
Current.Response.Cookies.Append(key, value, options);
}
public static string Get(string key)
{
return Current.Request.Cookies[key];
}
}