CSharp-Single-EFCore/Bunny.Service/IService/Service/RedisOptionService.cs

using Bunny.Common.Connect;
using Bunny.Dao.Models.System;
using Newtonsoft.Json;
using StackExchange.Redis;

namespace Bunny.Service.IService.Service;

public class RedisOptionService : IRedisOptionService
{
    private readonly IDatabase _redisDatabase = RedisContext.RedisDatabase;


    /// <summary>
    ///     添加Redis中一个值
    /// </summary>
    /// <param name="key"></param>
    /// <param name="value"></param>
    public void AddStringValue(string key, string value)
    {
        _redisDatabase.StringSet(key, value);
    }

    /// <summary>
    ///     查询字符串Key
    /// </summary>
    /// <param name="key"></param>
    public string QueryStringKey(string key)
    {
        return _redisDatabase.StringGet(key).ToString();
    }

    /// <summary>
    ///     添加时间限制的key
    /// </summary>
    /// <param name="key"></param>
    /// <param name="value"></param>
    public void AddTimeRedisKey(string key, string value)
    {
        // 时间限制为 6 秒
        _redisDatabase.StringSet(key, value, TimeSpan.FromSeconds(6.0));
    }

    /// <summary>
    ///     var keepTtl = false: 可选参数，表示是否保留已存在键的过期时间。如果设置为true，并且键已经设置了过期时间，那么新设置的键将保留原有的过期时间。
    /// </summary>
    /// <param name="key"></param>
    /// <param name="value"></param>
    public void AddTimeRedisKeyTtl(string key, string value)
    {
        // var keepTtl = false: 可选参数，表示是否保留已存在键的过期时间。如果设置为true，并且键已经设置了过期时间，那么新设置的键将保留原有的过期时间。throw new NotImplementedException();
        // keepTtl 默认是false 如果当前给这个key设置了过期时间，但是这个key之前就有过期时间，如果是false会覆盖原有的时间，如果为true不覆盖原有的时间
        _redisDatabase.StringSet(key, value, TimeSpan.FromSeconds(6.0), true);
    }

    /// <summary>
    ///     Redis存入JSON内容
    /// </summary>
    /// <returns></returns>
    public string AddJson()
    {
        var post = new Post
        {
            PostId = 1,
            Title = "存入JSON内容",
            Content = "正在存入JSON内容"
        };
        var json = JsonConvert.SerializeObject(post);
        _redisDatabase.StringSet("postKey", json);
        return json;
    }

    /// <summary>
    ///     删除Redis中key
    /// </summary>
    /// <param name="key"></param>
    public void DeleteKey(string key)
    {
        _redisDatabase.StringGetDelete(key);
    }

    /// <summary>
    ///     Redis中的事务
    /// </summary>
    public string SetRedisCreateTransaction(string key, string value)
    {
        // 创建事务
        var transaction = _redisDatabase.CreateTransaction();

        // 向事务中添加操作
        transaction.StringSetAsync(key, value, TimeSpan.FromSeconds(6.0));
        transaction.StringSetAsync("key1", "value1", TimeSpan.FromSeconds(6.0));

        // 执行事务
        var committed = transaction.Execute();

        return committed ? "事务执行成功！" : "事务执行失败！";
    }

    /// <summary>
    ///     Redis设置Hash值
    /// </summary>
    /// <param name="key"></param>
    /// <param name="keyExpire"></param>
    public void AddHashWithRedis(string key, double keyExpire)
    {
        _redisDatabase.HashSet(key, "key", "value");
        // 设置过期时间为6秒 
        _redisDatabase.KeyExpire(key, TimeSpan.FromSeconds(keyExpire));
    }
}