.NET怎么实现一个简单的Redis缓存读写_Redis缓存读写操作指南

<font color="#808080"><strong>using StackExchange.Redis;</strong></font>

<strong>public static class RedisHelper</strong>
{
    <strong>private static readonly ConnectionMultiplexer _connection;</strong>
    
    <strong>static RedisHelper()</strong>
    {
        <strong>_connection = ConnectionMultiplexer.Connect("localhost:6379");</strong>
    }

    <strong>public static IDatabase GetDatabase()</strong>
    {
        <strong>return _connection.GetDatabase();</strong>
    }
}

<strong>var db = RedisHelper.GetDatabase();</strong>

// 写入缓存（Key-Value）
<strong>db.StringSet("user:name", "张三");</strong>

// 设置过期时间（例如 10 分钟）
<strong>db.StringSet("user:email", "zhangsan@example.com", TimeSpan.FromMinutes(10));</strong>

// 读取缓存
<strong>var name = db.StringGet("user:name");</strong>
<strong>if (name.HasValue)</strong>
{
    <strong>Console.WriteLine(name); // 输出：张三</strong>
}
else
{
    <strong>Console.WriteLine("缓存不存在");</strong>
}

<strong>using System.Text.Json;</strong>

<strong>public class User</strong>
{
    public int Id { get; set; }
    public string Name { get; set; }
}

// 存储对象
<strong>var user = new User { Id = 1, Name = "李四" };</strong>
<strong>var json = JsonSerializer.Serialize(user);</strong>
<strong>db.StringSet("user:1", json, TimeSpan.FromMinutes(15));</strong>

// 读取并反序列化
<strong>var cachedJson = db.StringGet("user:1");</strong>
<strong>if (cachedJson.HasValue)</strong>
{
    <strong>var restoredUser = JsonSerializer.Deserialize<User>(cachedJson!);</strong>
    <strong>Console.WriteLine(restoredUser.Name);</strong>
}