0.引入.net core环境下Redis的NuGet包，StackExchange.Redis，现目前最新的2.0.519。
- 帮助类Code:
using System;
using System.Collections.Generic;
using StackExchange.Redis;
using Newtonsoft.Json;
using YJT.Web.lib;
using YJT.Common.Log; namespace YJT.Web.Redis
{
/// <summary>
/// Redis帮助类
/// </summary>
public class RedisHelper
{
//单例模式
public static RedisCommon Default { get { return new RedisCommon(); } }
public static RedisCommon One { get { return new RedisCommon(, UtilConf.Configuration["RedisConfig:ReadWriteHosts"] ?? "127.0.0.1:6789"); } }
public static RedisCommon Two { get { return new RedisCommon(, UtilConf.Configuration["RedisConfig:ReadWriteHosts"] ?? "127.0.0.1:6789"); } }
public static RedisCommon Three { get { return new RedisCommon(, UtilConf.Configuration["RedisConfig:ReadWriteHosts"] ?? "127.0.0.1:6789"); } }
} /// <summary>
/// Redis操作类
/// 老版用的是ServiceStack.Redis
/// .Net Core使用StackExchange.Redis的nuget包
/// </summary>
public class RedisCommon
{
//redis数据库连接字符串
private string _conn = UtilConf.Configuration["RedisConfig:ReadWriteHosts"] ?? "127.0.0.1:6789";
private int _db = ; //静态变量 保证各模块使用的是不同实例的相同链接
private static ConnectionMultiplexer connection; /// <summary>
/// 构造函数
/// </summary>
public RedisCommon() { }
/// <summary>
/// 构造函数
/// </summary>
/// <param name="db"></param>
/// <param name="connectStr"></param>
public RedisCommon(int db, string connectStr)
{
_db = db;
_conn = connectStr;
} /// <summary>
/// 缓存数据库，数据库连接
/// </summary>
public ConnectionMultiplexer CacheConnection
{
get
{
try
{
if (connection == null || !connection.IsConnected)
{
connection = new Lazy<ConnectionMultiplexer>(() => ConnectionMultiplexer.Connect(_conn)).Value;
}
}
catch (Exception ex)
{
Log.Debug("RedisHelper->CacheConnection 出错\r\n", ex.Message.ToString());
return null;
}
return connection;
}
} /// <summary>
/// 缓存数据库
/// </summary>
public IDatabase CacheRedis => CacheConnection.GetDatabase(_db); #region --KEY/VALUE存取--
/// <summary>
/// 单条存值
/// </summary>
/// <param name="key">key</param>
/// <param name="value">The value.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
public bool StringSet(string key, string value)
{
return CacheRedis.StringSet(key, value);
} /// <summary>
/// 保存单个key value
/// </summary>
/// <param name="key">Redis Key</param>
/// <param name="value">保存的值</param>
/// <param name="expiry">过期时间</param>
/// <returns></returns>
public bool StringSet(string key, string value, TimeSpan? expiry = default(TimeSpan?))
{
return CacheRedis.StringSet(key, value, expiry);
} /// <summary>
/// 保存多个key value
/// </summary>
/// <param name="arr">key</param>
/// <returns></returns>
public bool StringSet(KeyValuePair<RedisKey, RedisValue>[] arr)
{
return CacheRedis.StringSet(arr);
} /// <summary>
/// 批量存值
/// </summary>
/// <param name="keysStr">key</param>
/// <param name="valuesStr">The value.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
public bool StringSetMany(string[] keysStr, string[] valuesStr)
{
var count = keysStr.Length;
var keyValuePair = new KeyValuePair<RedisKey, RedisValue>[count];
for (int i = ; i < count; i++)
{
keyValuePair[i] = new KeyValuePair<RedisKey, RedisValue>(keysStr[i], valuesStr[i]);
} return CacheRedis.StringSet(keyValuePair);
} /// <summary>
/// 保存一个对象
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="obj"></param>
/// <returns></returns>
public bool SetStringKey<T>(string key, T obj, TimeSpan? expiry = default(TimeSpan?))
{
string json = JsonConvert.SerializeObject(obj);
return CacheRedis.StringSet(key, json, expiry);
} /// <summary>
/// 追加值
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public void StringAppend(string key, string value)
{
////追加值，返回追加后长度
long appendlong = CacheRedis.StringAppend(key, value);
} /// <summary>
/// 获取单个key的值
/// </summary>
/// <param name="key">Redis Key</param>
/// <returns></returns>
public RedisValue GetStringKey(string key)
{
return CacheRedis.StringGet(key);
} /// <summary>
/// 根据Key获取值
/// </summary>
/// <param name="key">键值</param>
/// <returns>System.String.</returns>
public string StringGet(string key)
{
try
{
return CacheRedis.StringGet(key);
}
catch (Exception ex)
{
Log.Debug("RedisHelper->StringGet 出错\r\n", ex.Message.ToString());
return null;
}
} /// <summary>
/// 获取多个Key
/// </summary>
/// <param name="listKey">Redis Key集合</param>
/// <returns></returns>
public RedisValue[] GetStringKey(List<RedisKey> listKey)
{
return CacheRedis.StringGet(listKey.ToArray());
} /// <summary>
/// 批量获取值
/// </summary>
public string[] StringGetMany(string[] keyStrs)
{
var count = keyStrs.Length;
var keys = new RedisKey[count];
var addrs = new string[count]; for (var i = ; i < count; i++)
{
keys[i] = keyStrs[i];
}
try
{ var values = CacheRedis.StringGet(keys);
for (var i = ; i < values.Length; i++)
{
addrs[i] = values[i];
}
return addrs;
}
catch (Exception ex)
{
Log.Debug("RedisHelper->StringGetMany 出错\r\n", ex.Message.ToString());
return null;
}
} /// <summary>
/// 获取一个key的对象
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public T GetStringKey<T>(string key)
{
return JsonConvert.DeserializeObject<T>(CacheRedis.StringGet(key));
}
#endregion #region --删除设置过期--
/// <summary>
/// 删除单个key
/// </summary>
/// <param name="key">redis key</param>
/// <returns>是否删除成功</returns>
public bool KeyDelete(string key)
{
return CacheRedis.KeyDelete(key);
} /// <summary>
/// 删除多个key
/// </summary>
/// <param name="keys">rediskey</param>
/// <returns>成功删除的个数</returns>
public long KeyDelete(RedisKey[] keys)
{
return CacheRedis.KeyDelete(keys);
} /// <summary>
/// 判断key是否存储
/// </summary>
/// <param name="key">redis key</param>
/// <returns></returns>
public bool KeyExists(string key)
{
return CacheRedis.KeyExists(key);
} /// <summary>
/// 重新命名key
/// </summary>
/// <param name="key">就的redis key</param>
/// <param name="newKey">新的redis key</param>
/// <returns></returns>
public bool KeyRename(string key, string newKey)
{
return CacheRedis.KeyRename(key, newKey);
} /// <summary>
/// 删除hasekey
/// </summary>
/// <param name="key"></param>
/// <param name="hashField"></param>
/// <returns></returns>
public bool HaseDelete(RedisKey key, RedisValue hashField)
{
return CacheRedis.HashDelete(key, hashField);
} /// <summary>
/// 移除hash中的某值
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public bool HashRemove(string key, string dataKey)
{
return CacheRedis.HashDelete(key, dataKey);
} /// <summary>
/// 设置缓存过期
/// </summary>
/// <param name="key"></param>
/// <param name="datetime"></param>
public void SetExpire(string key, DateTime datetime)
{
CacheRedis.KeyExpire(key, datetime);
}
#endregion
}
} - using引用备注：
using Newtonsoft.Json;//为第三方转json 对象使用的，再熟悉不过了吧
using YJT.Common.Log;//是一个记录日志的帮助的类，你可以用你自己的来记录日志。
using YJT.Web.lib;//此引用是获取.net core中的appsettings.json中配置的信息。 UtilConf.Configuration["RedisConfig:ReadWriteHosts"]获取 - 获取appsettings.json的UtilConf.cs帮助类：
using Microsoft.Extensions.Configuration;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text; namespace YJT.Web.lib
{
/// <summary>
/// 读配置文件
/// </summary>
public class UtilConf
{
private static IConfiguration config; /// <summary>
/// 加载配置文件
/// </summary>
public static IConfiguration Configuration
{
get
{
if (config != null) return config;
config = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.Build();
return config;
}
set => config = value;
}
}
}此类主要是获取.net core 中的json配置信息。如：UtilConf.Configuration["RedisConfig:ReadWriteHosts"]
- StackExchange.Redis下的IDatabase接口还有丰富的操作方法，可自行研究补充帮助类
分享至此，欢迎留言评论~~~