//全局过滤器
builder.Services.AddMvc(m =>
{
m.Filters.Add<AllResultFilter>();
});
1、实现过滤器
public class AllResultFilter : IResultFilter
{/// <summary>/// 结果执行后方法/// 不可更改结果/// </summary>/// <param name="context"></param>/// <exception cref="NotImplementedException"></exception>public void OnResultExecuted(ResultExecutedContext context){throw new Exception("ce");Trace.WriteLine("OnResultExecuted之后");}/// <summary>/// 结果执行之前/// 可更改结果/// </summary>/// <param name="context"></param>/// <exception cref="NotImplementedException"></exception>public void OnResultExecuting(ResultExecutingContext context){Trace.WriteLine("OnResultExecuted之前");}
}
2、结论
OnResultExecuting可以修改返回结果，相当于在方法目标执行完追加执行
OnResultExecuted不可以修改返回结果，相当于目标方法执行返回结果后执行
