使用前记得 安装nuget包 xiaofeng.redis

using XiaoFeng.Redis;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddSingleton<IRedisClient>(new RedisClient("redis://172.168.1.111:6379/0?ConnectionTimeout=3000&ReadTimeout=3000&SendTimeout=3000&pool=3"));

然后在你的控制器里进行实例化

        /// <summary>
        /// 
        /// </summary>
        private readonly IRedisClient _redisClient;
        /// <summary>
        /// 
        /// </summary>
        /// <param name="ftpClient"></param>
        public ManageController(IRedisClient redisClient)
        {
            _redisClient = redisClient;
        }
        /// <summary>
        /// 测试redis
        /// </summary>
        [HttpGet]
        public void TestReis()
        {
            var lll = _redisClient.SetString("111", "222");
            var ll1l = _redisClient.GetString("111");
        }

如果想在Program.cs写的更简洁一下，
例如想这样写

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddRedisCacheSetup();

我们需要写一个静态类

    /// <summary>
    /// Redis缓存 启动服务
    /// </summary>
    public static class RedisCacheSetup
    {
        public static void AddRedisCacheSetup(this IServiceCollection services)
        {
            if (services == null) throw new ArgumentNullException(nameof(services));
            services.AddSingleton<IRedisClient>(new RedisClient("redis://172.16.29.104:6379/0?ConnectionTimeout=3000&ReadTimeout=3000&SendTimeout=3000&pool=3"));
        }
    }