public class MyExceptionFilter : IAsyncExceptionFilter
{
private readonly ILogger<MyExceptionFilter> logger;
private readonly IHostEnvironment env;
public MyExceptionFilter(ILogger<MyExceptionFilter> logger, IHostEnvironment env)
{
this.logger = logger;
this.env = env;
}
public Task OnExceptionAsync(ExceptionContext context)
{
Exception exception = context.Exception;
logger.LogError(exception, "UnhandledException occured");
string message;
if (env.IsDevelopment())
{
message = exception.ToString();
}
else
{
message = "程序中出现未处理异常";
}
ObjectResult result = new ObjectResult(new { code = 500, message = message });
result.StatusCode = 500;
context.Result = result;
context.ExceptionHandled = true; // 表示异常已经被处理 后续的ExceptionFilter 不会执行了
return Task.CompletedTask;
}
}