ASP.NET Core--全局异常处理

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使用过滤器做全局异常处理，具体代码如下：

 public class CustomerExceptionFilter : ExceptionFilterAttribute
    {
        private readonly ILogger<CustomerExceptionFilter> _logger;

        public CustomerExceptionFilter(ILogger<CustomerExceptionFilter> logger)
        {
            _logger = logger;
        }

        public override void OnException(ExceptionContext context)
        {
            Exception ex = context.Exception;
            HttpRequest request = context.HttpContext.Request;
            string requestUrl = $"{request.Scheme}://{request.Host.Value}{request.Path}";
            string errorMsg = $"error:{ex.GetBaseException().Message};requesturl:{requestUrl}"; 
            _logger.LogError(errorMsg);
            var result = new { code = 0, msg = errorMsg, data = "" };
            string json = JsonConvert.SerializeObject(result);
            context.HttpContext.Response.StatusCode = StatusCodes.Status200OK;
            context.HttpContext.Response.ContentType = "application/json;charset=utf-8";
            context.HttpContext.Response.WriteAsync(json);
            context.ExceptionHandled = true;
        }
    }

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