.net 使用IAsyncResultFilter或IResultFilter 进行restful统一风格在swagger ui中不显示问题解决

1.现实swagger IOperationFilter 过滤器接口

public class SwaggerOperationFilter: IOperationFilter
{
    private readonly ISchemaGenerator _schemaGenerator;

    public SwaggerOperationFilter(ISchemaGenerator schemaGenerator)
    {
        _schemaGenerator = schemaGenerator;
    }
    public void Apply(OpenApiOperation operation, OperationFilterContext context)
    {
        // 获取操作返回的类型
        var returnType = context.MethodInfo.ReturnType;

        // 处理 Task<> 或者 ActionResult<>
        if (returnType.IsGenericType && returnType.GetGenericTypeDefinition() == typeof(Task<>))
        {
            returnType = returnType.GetGenericArguments()[0];
        }

        // 处理 ActionResult<>
        if (returnType.IsGenericType && returnType.GetGenericTypeDefinition() == typeof(ActionResult<>))
        {
            returnType = returnType.GetGenericArguments()[0];
        }
        
        // 动态给泛型添加接口真实返回的类型
        var type = typeof(ApiResponse<>).MakeGenericType(returnType);
        
        // 将描述合并到schema
        var schema = _schemaGenerator.GenerateSchema(type, context.SchemaRepository);

        operation.Responses.Clear();
        operation.Responses.Add("200", new OpenApiResponse
        {
            Description = "统一的成功响应",
            Content = new Dictionary<string, OpenApiMediaType>
            {
                ["application/json"] = new OpenApiMediaType
                {
                    Schema = schema,
                }
            }
        });
    }
}

2.定义返回的泛型类

/// <summary>
/// 全局返回dto
/// </summary>
/// <typeparam name="T"></typeparam>
public class ApiResponse<T>
{
    public string Code { get; set; }
    public bool Success { get; set; }
    public string Message { get; set; }
    public T Data { get; set; }
}

3.在swagger中使用IOperationFilter现实的过滤

            //  注入ISchemaGenerator，  在IOperationFilter实现中构造需要使用
            context.Services.AddTransient<ISchemaGenerator>(provider =>
            {
                var schemaGeneratorOptions = provider.GetRequiredService<SchemaGeneratorOptions>();
                var jsonSerializerOptions = provider.GetRequiredService<ISerializerDataContractResolver>();
                return new SchemaGenerator(schemaGeneratorOptions, jsonSerializerOptions);
            });


            context.Services.AddAbpSwaggerGen(options =>
            {
                 // ...................其他代码省略

                options.OperationFilter<SwaggerOperationFilter>();
                 // ...................其他代码省略
            });

4.效果展示

接口：

swagger: