DotNET6 WebAPI全局异常处理及拦截器

/// <summary>

/// 全局异常过滤器

/// </summary>

public class ExceptionFilter : ExceptionFilterAttribute

{

    private readonly ILogger<ExceptionFilter> _logger;

    /// <summary>

    /// 构造函数注入

    /// </summary>

    /// <param name="logger"></param>

    public ExceptionFilter(ILogger<ExceptionFilter> logger)

    {

        _logger = logger;

    }

    /// <summary>

    /// 全局捕获异常方法

    /// </summary>

    /// <param name="context"></param>

    public override void OnException(ExceptionContext context)

    {

        if (!context.ExceptionHandled)

        {

            context.Result = new JsonResult(new { Code = 500, Message = context.Exception.Message, Data = "接口发生错误" });

            string ActionRoute = ((Microsoft.AspNetCore.Mvc.Controllers.ControllerActionDescriptor)context.ActionDescriptor).DisplayName;

            _logger.LogError("请求路径：{0}，错误信息：{1}", ActionRoute, context.Exception.Message);

            context.ExceptionHandled = true;

        }

    }

}

/// <summary>

/// 请求拦截器

/// </summary>

public class GlobalActionFilter : IActionFilter

{

    private readonly ILogger<GlobalActionFilter> _logger;

    public GlobalActionFilter(ILogger<GlobalActionFilter> logger)

    {

        _logger = logger;

    }

    /// <summary>

    /// 执行方法前

    /// </summary>

    /// <param name="context"></param>

    public void OnActionExecuting(ActionExecutingContext context)

    {

        // 执行方法前先执行这

        _logger.LogInformation("执行前");

    }

    /// <summary>

    /// 执行方法后

    /// </summary>

    /// <param name="context"></param>

    public void OnActionExecuted(ActionExecutedContext context)

    {

        // 执行方法后执行这

        _logger.LogInformation("执行后");

    }

}

var builder = WebApplication.CreateBuilder(args);

// 异常处理

builder.Services.AddMvcCore(options =>

{

    // 异常过滤器

    options.Filters.Add<ExceptionFilter>();

    // Action 拦截器

    options.Filters.Add<GlobalActionFilter>();

}).AddJsonOptions(options =>

{

    // 配置 Json 序列化大小写处理

    options.JsonSerializerOptions.PropertyNamingPolicy = null;

    options.JsonSerializerOptions.DictionaryKeyPolicy = null;

    // 解决中文被编码

    options.JsonSerializerOptions.Encoder = JavaScriptEncoder.Create(UnicodeRanges.All);

});