Redis总结 C#中如何使用redis

博客着重讲解.NET中如何使用Redis和C#。介绍了Redis官网提供的多个开源C#客户端,重点介绍较流行的ServiceStack.Redis。还说明了建立控制台应用程序、引用类库、创建Redis操作公用类、配置文件、测试程序调用及输出结果等使用步骤。

转载自:https://www.cnblogs.com/zhangweizhong/p/4972348.html

本篇着重讲解.NET中如何使用redis和C#。

 

  Redis官网提供了很多开源的C#客户端。例如,Nhiredis ,ServiceStack.Redis ,StackExchange.Redis等。其中ServiceStack.Redis应该算是比较流行的。它提供了一整套从Redis数据结构都强类型对象转换的机制并将对象json序列化。所以这里只介绍ServiceStack.Redis,它也是目前我们产品中所使用的客户端。 

 

  ServiceStack.Redis地址https://github.com/ServiceStack/ServiceStack.Redis 

 

  1. 建立一个控制台应用程序,并引用以下ServiceStack.Redis相关的四个类库。或者通过Nuget进行安装Redis常用组件ServiceStack.Redis。 下载示例代码

      

 

  2. 创建一个Redis操作的公用类RedisCacheHelper,

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
using  System;
using  System.Collections.Generic;
using  System.Configuration;
using  System.Linq;
using  System.Text;
using  System.Web;
using  ServiceStack.Common.Extensions;
using  ServiceStack.Redis;
using  ServiceStack.Logging;
 
namespace  Weiz.Redis.RedisTest
{
     public  class  RedisCacheHelper
     {
         private  static  readonly  PooledRedisClientManager pool =  null ;
         private  static  readonly  string [] redisHosts =  null ;
         public  static  int  RedisMaxReadPool =  int .Parse(ConfigurationManager.AppSettings[ "redis_max_read_pool" ]);
         public  static  int  RedisMaxWritePool =  int .Parse(ConfigurationManager.AppSettings[ "redis_max_write_pool" ]);
 
         static  RedisCacheHelper()
         {
             var  redisHostStr = ConfigurationManager.AppSettings[ "redis_server_session" ];
 
             if  (! string .IsNullOrEmpty(redisHostStr))
             {
                 redisHosts = redisHostStr.Split( ',' );
 
                 if  (redisHosts.Length > 0)
                 {
                     pool =  new  PooledRedisClientManager(redisHosts, redisHosts,
                         new  RedisClientManagerConfig()
                         {
                             MaxWritePoolSize = RedisMaxWritePool,
                             MaxReadPoolSize = RedisMaxReadPool,
                             AutoStart =  true
                         });
                 }
             }
         }
         public  static  void  Add<T>( string  key, T value, DateTime expiry)
         {
             if  (value ==  null )
             {
                 return ;
             }
 
             if  (expiry <= DateTime.Now)
             {
                 Remove(key);
 
                 return ;
             }
 
             try
             {
                 if  (pool !=  null )
                 {
                     using  ( var  r = pool.GetClient())
                     {
                         if  (r !=  null )
                         {
                             r.SendTimeout = 1000;
                             r.Set(key, value, expiry - DateTime.Now);
                         }
                     }
                 }
             }
             catch  (Exception ex)
             {
                 string  msg =  string .Format( "{0}:{1}发生异常!{2}" "cache" "存储" , key);
             }
 
         }
 
         public  static  void  Add<T>( string  key, T value, TimeSpan slidingExpiration)
         {
             if  (value ==  null )
             {
                 return ;
             }
 
             if  (slidingExpiration.TotalSeconds <= 0)
             {
                 Remove(key);
 
                 return ;
             }
 
             try
             {
                 if  (pool !=  null )
                 {
                     using  ( var  r = pool.GetClient())
                     {
                         if  (r !=  null )
                         {
                             r.SendTimeout = 1000;
                             r.Set(key, value, slidingExpiration);
                         }
                     }
                 }
             }
             catch  (Exception ex)
             {
                 string  msg =  string .Format( "{0}:{1}发生异常!{2}" "cache" "存储" , key);
             }
 
         }
 
 
 
         public  static  T Get<T>( string  key)
         {
             if  ( string .IsNullOrEmpty(key))
             {
                 return  default (T);
             }
 
             T obj =  default (T);
 
             try
             {
                 if  (pool !=  null )
                 {
                     using  ( var  r = pool.GetClient())
                     {
                         if  (r !=  null )
                         {
                             r.SendTimeout = 1000;
                             obj = r.Get<T>(key);
                         }
                     }
                 }
             }
             catch  (Exception ex)
             {
                 string  msg =  string .Format( "{0}:{1}发生异常!{2}" "cache" "获取" , key);
             }
 
 
             return  obj;
         }
 
         public  static  void  Remove( string  key)
         {
             try
             {
                 if  (pool !=  null )
                 {
                     using  ( var  r = pool.GetClient())
                     {
                         if  (r !=  null )
                         {
                             r.SendTimeout = 1000;
                             r.Remove(key);
                         }
                     }
                 }
             }
             catch  (Exception ex)
             {
                 string  msg =  string .Format( "{0}:{1}发生异常!{2}" "cache" "删除" , key);
             }
 
         }
 
         public  static  bool  Exists( string  key)
         {
             try
             {
                 if  (pool !=  null )
                 {
                     using  ( var  r = pool.GetClient())
                     {
                         if  (r !=  null )
                         {
                             r.SendTimeout = 1000;
                             return  r.ContainsKey(key);
                         }
                     }
                 }
             }
             catch  (Exception ex)
             {
                 string  msg =  string .Format( "{0}:{1}发生异常!{2}" "cache" "是否存在" , key);
             }
 
             return  false ;
         }
     }
}

  说明:RedisCacheHelper 使用的是客户端链接池模式,这样的存取效率应该是最高的。同时也更方便的支持读写分离,均衡负载。

 

  3. 配置文件

1
2
3
4
5
6
<!-- redis Start   -->
<add key= "SessionExpireMinutes"  value= "180"  />
<add key= "redis_server_session"  value= "127.0.0.1:6379"  />
<add key= "redis_max_read_pool"  value= "3"  />
<add key= "redis_max_write_pool"  value= "1"  />
<!--redis end-->

 

  4. 测试程序调用

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
class  Program
     {
         static  void  Main( string [] args)
         {
             Console.WriteLine( "Redis写入缓存:zhong" );
 
             RedisCacheHelper.Add( "zhong" "zhongzhongzhong" , DateTime.Now.AddDays(1));
 
             Console.WriteLine( "Redis获取缓存:zhong" );
 
             string  str3 = RedisCacheHelper.Get< string >( "zhong" );
 
             Console.WriteLine(str3);
 
             Console.WriteLine( "Redis获取缓存:nihao" );
             string  str = RedisCacheHelper.Get< string >( "nihao" );
             Console.WriteLine(str);
 
 
             Console.WriteLine( "Redis获取缓存:wei" );
             string  str1 = RedisCacheHelper.Get< string >( "wei" );
             Console.WriteLine(str1);
 
             Console.ReadKey();
         }
     }

  

  5. 输出结果

     

转载于:https://www.cnblogs.com/blogsaspx/p/10911105.html

评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值