目录
一、前言二、安装StackExchange.Redis三、添加配置四、Redis帮助类五、添加服务依赖项六、在控制器中使用七、测试一、前言
我们这里以StackExchange.Redis为例，讲解如何在ASP.NET Core中如何使用Redis实现缓存。首先需要安装Redis和RedisDesktopManager。RedisDesktopManager用来查看Redis缓存里面的数据。如何安装Redis这里不在讲述。
二、安装StackExchange.Redis
在NuGet上安装StackExchange.Redis，如下图所示：
安装完成以后在依赖项里面就可以看到：
三、添加配置
在appsettings.json文件里面添加Redis相关配置信息：
{ "Logging": { "LogLevel": { "Default": "Warning" } }, "AllowedHosts": "*", "Redis": { "Default": { "Connection": "127.0.0.1:6379", "InstanceName": "local", "DefaultDB": 8 } }}四、Redis帮助类
创建Redis帮助类，代码如下：
using StackExchange.Redis;using System;using System.Collections.Concurrent;namespace RedisDemo{ public class RedisHelper : IDisposable { //连接字符串 private string _connectionString; //实例名称 private string _instanceName; //默认数据库 private int _defaultDB; private ConcurrentDictionary<string, ConnectionMultiplexer> _connections; public RedisHelper(string connectionString, string instanceName, int defaultDB = 0) { _connectionString = connectionString; _instanceNampNetCore.Mvc;using Microsoft.Extensions.Configuration;using Microsoft.Extensions.DependencyInjection;namespace RedisDemo{ public class Startup { public Startup(IConfiguration configuration) { Configuration = configuration; } public IConfiguration Configuration { get; } // This method gets called by the runtime. Use this method to add services to the container. public void ConfigureServices(IServiceCollection services) { //redis缓存 var section = Configuration.GetSection("Redis:Default"); //连接字符串 string _connectionString = section.GetSection("Connection").Value; //实例名称 string _instanceName = section.GetSection("InstanceName").Value; //默认数据库 int _defaultDB = int.Parse(section.GetSection("DefaultDB").Value ?? "0"); services.AddSingleton(new RedisHelper(_connectionString, _instanceName, _defaultDB)); services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1); } // This method gets called by the runtime. Use this method to configure the HTTP request pipeline. public void Configure(IApplicationBuilder app, IHostingEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } app.UseMvc(); } }}六、在控制器中使用
新建一个控制器，然后通过构造函数注入：
using Microsoft.AspNetCore.Mvc;using StackExchange.Redis;namespace RedisDemo.Controllers{ [Route("api/redis")] [ApiController] public class RedisController : ControllerBase { private readonly IDatabase _redis; public RedisController(RedisHelper client) { _redis = client.GetDatabase(); } [HttpGet] public string Get() { // 往Redis里面存入数据 _redis.StringSet("Name", "Tom"); // 从Redis里面取数据 string name = _redis.StringGet("Name"); return name; } }}七、测试
运行程序，使用Postman测试控制器：
然后通过RedisDesktopManager查看Redis里面的数据，这里使用的Db8数据库：
到此这篇关于ASP.NET Core中使用Redis实现缓存的文章就介绍到这了。希望对大家的学习有所帮助，也希望大家多多支持我们。
