题外话，有网友说，这玩意根本很容易破解，确实是这样。但验证码这东西，就跟锁子很类似，防君子不防小人。验证码的发明其实是社会文明的退步。因为它阻碍了真正的使用者，却无法阻挡别有用心的人。但又有什么办法呢？

上一篇文章添加了一些基本类，本篇内容主要目的是创建一些接口类

上一节内容：NET 6 实现滑动验证码（二）、基本数据

ValidateResult.cs

在项目根目录下，创建ValidateResult.cs。其功能是提供验证后返回的信息

namespace SlideCaptcha {     public class ValidateResult     {         public ValidateResultType Result { get; set; }         public string Message { get; set; }          public static ValidateResult Success()         {             return new ValidateResult { Result = ValidateResultType.Success, Message = "成功" };         }          public static ValidateResult Fail()         {             return new ValidateResult { Result = ValidateResultType.ValidateFail, Message = "验证失败" };         }          public static ValidateResult Timeout()         {             return new ValidateResult { Result = ValidateResultType.Timeout, Message = "验证超时" };         }          public enum ValidateResultType         {             Success = 0,             ValidateFail = 1,             Timeout = 2         }     } }  

ICaptcha.cs

在Interface文件夹下，建一个ICaptcha.cs，用于生成验证码和进行校验。

using SlideCaptcha.Model; using System.Threading.Tasks;  namespace SlideCaptcha.Interface {     public interface ICaptcha     {         /// <summary>         /// 生成验证码         /// </summary>         /// <param name="captchaId">验证码id</param>         /// <returns></returns>         Task<CaptchaData> GenerateCaptchaImageAsync(string type, string captchaId = null);          /// <summary>         /// 校验         /// </summary>         /// <param name="captchaId">验证码id</param>         /// <param name="slideTrack">滑动轨迹</param>         /// <returns></returns>         ValidateResult Validate(string captchaId, SlideTrack slideTrack);     } }  

IResourceHandler.cs

IResourceHandler.cs 用于生成验证码资源（验证码模板）。

using SlideCaptcha.Model; using System.Threading.Tasks;  namespace SlideCaptcha.Interface {     public interface IResourceHandler     {         /// <summary>         /// 判断传入的资源类型是否存在         /// </summary>         /// <param name="handlerType"></param>         /// <returns></returns>         bool CanHandle(string handlerType);          /// <summary>         /// 生成资源         /// </summary>         /// <param name="resource"></param>         /// <returns></returns>         Task<byte[]> Handle(Resource resource);     } }  

IResourceHandlerManager.cs

IResourceHandlerManager.cs用于根据资源（验证码模板），获取资源byte[]数据。

using SlideCaptcha.Model; using System.Threading.Tasks;  namespace SlideCaptcha.Interface {     public interface IResourceHandlerManager     {         /// <summary>         /// 根据资源，生成所需要的byte[]         /// </summary>         /// <param name="resource"></param>         /// <returns></returns>         Task<byte[]> Handle(Resource resource);     } }  

IResourceManager.cs

IResourceManager.cs用于获取验证码背景数据与验证码模板数据

using System.Threading.Tasks;  namespace SlideCaptcha.Interface {     public interface IResourceManager     {         /// <summary>         /// 随机获取验证码图片背景         /// </summary>         /// <returns></returns>        Task<byte[]> RandomBackground();        /// <summary>        /// 随机获取模板        /// </summary>        /// <param name="type">模板类型，滑动、旋转、点选</param>        /// <returns></returns>        Task<(byte[], byte[])> RandomTemplate(string type);     } }  

IResourceProvider.cs

IResourceProvider.cs用于提供验证码背景图片与模板图片的List

using SlideCaptcha.Model; using System.Collections.Generic;  namespace SlideCaptcha.Interface {     public interface IResourceProvider     {         /// <summary>         /// 提供验证码背景图片         /// </summary>         /// <returns></returns>         List<Resource> Backgrounds();          /// <summary>         /// 提供模板资源         /// </summary>         /// <returns></returns>         List<TemplatePair> Templates();     } }  

ISliderCaptchaImageGenerator.cs

ISliderCaptchaImageGenerator.cs用于生成滑动验证码

using SlideCaptcha.Model; using System.Threading.Tasks;  namespace SlideCaptcha.Interface {     public interface ISliderCaptchaImageGenerator     {         /// <summary>         /// 生成滑动验证码         /// </summary>         /// <param name="captchaId">验证码ID</param>         /// <returns></returns>         Task<SliderImageCaptchaInfo> Generate(string captchaId);     } }  

IStorage.cs

IStorage.cs 用于缓存的操作

using System;  namespace SlideCaptcha.Interface {     public interface IStorage     {         /// <summary>         /// 设置缓存         /// </summary>         /// <typeparam name="T"></typeparam>         /// <param name="key"></param>         /// <param name="value"></param>         /// <param name="absoluteExpiration"></param>         void Set<T>(string key, T value, DateTimeOffset absoluteExpiration);          /// <summary>         /// 获取缓存         /// </summary>         /// <typeparam name="T"></typeparam>         /// <param name="key"></param>         /// <returns></returns>         T Get<T>(string key);          /// <summary>         /// 删除缓存         /// </summary>         /// <param name="key"></param>          void Remove(string key);     } }  

IValidator.cs

IValidator.cs 用于提供校验验证码数据。

using SlideCaptcha.Model;  namespace SlideCaptcha.Interface {     public interface IValidator     {         /// <summary>         /// 校验验证码数据         /// </summary>         /// <param name="slideTrack">滑动</param>         /// <param name="captchaValidateData">校验</param>         /// <returns></returns>         bool Validate(SlideTrack slideTrack, CaptchaValidateData captchaValidateData);     } }  

下载地址（包括验证码源码、服务端API示例、前端代码有HTML+JQyeryt、vue3两个示例）

https://pan.baidu.com/s/19mx24FXrnqz9u2mmFqlr6g?pwd=7636