Redis进阶实践之九 独立封装的RedisClient客户端工具类
**一、引言
**
今天开始有关Redis学习的第九篇文章了,以后肯定会大量系统使用Redis作为缓存介质,为了更好的更好的Redis,自己写了两个工具类,但是这两个工具类,没有提供一致的接口,是为了使用的独立性。测试已经完毕,可以正常访问Windows和Linux版本上的Redis服务,各种操作也没问题。今天就把主要代码贴出来,因为有一部分是需要配置文件的,我自己独立写了一套配置系统,这套配置系统就不贴出来,大家可以根据自己的理解来写这个部分的内容,好了,开始我们今天的写作吧。
**二、简介
**
我写了两个工具类,第一个是以【StackExchange.Redis】为实现技术的Redis的客户端工具类,另一个是以【ServiceStack.Redis】为实现技术的Redis客户端工具类。【ServiceStack.Redis】的官网主页:https://servicestack.net/redis,【ServiceStack.Redis】在github上的主页:https://github.com/ServiceStack/ServiceStack.Redis,【ServiceStack.Redis】和Visual Studio 2015整个也很方便,微软在这块做的的很不过,我们可以通过命令直接安装:Install-Package ServiceStack.Redis
,当然我们也可以通过NuGet来安装,安装完成,在您项目的【引用】里面会生成四个dll,分别是:ServiceStack.Common,ServiceStack.Interfaces,ServiceStack.Redis,ServiceStack.Client 四个程序集,然后在项目中使用Using引入就可以正常使用了。【ServiceStack.Redis】是Redis官方推荐的C#客户端,性能非常优越,使用也很方便,但是从v4版本已经逐渐商业化了,目的可以想而知,嗨,都是钱惹的祸。
上面我说道了,【ServiceStack.Redis】后来就商业化了,我想了想光靠他也是不行了,还要在写一个版本的工具类,所以就选择了【StackExchange.Redis】,【StackExchange.Redis】也是开源的,到目前,一直都是开源的,它的地址是:https://github.com/StackExchange/StackExchange.Redis,我使用的是.net 4.5,工具采用 vs2015, StackExchange.Redis版本是1.0.488。工具类还会在持续的使用过程中,我还会更新和修改的。
**三、实例代码
**
这是Redis客户端的配置文件的格式,格式很简单,可以分开配置,也可以合在一起配置。代码中标红的是和我的配置系统有关的代码,大家请注意。
1、这是以【ServiceStack.Redis】为实现技术的工具类,对外界的访问接口提供了2个,第一个是以配置文件中自定义的名称参数的,红色代码是和我独立的配置系统相关联的,另一个访问接口是以配置实体类参数的,代码很简单,不多说了。
工具类:ServiceStackRedisClientProvider.cs
1 ///
4 public sealed class ServiceStackRedisClientProvider
5 {
6 #region 私有变量
7
8 //线程同步变量
9 private static readonly object lockObject = new object();
10
11 //redis链接池管理对象
12 private static volatile PooledRedisClientManager _instance = null;
13
14 //配置文件里面的ServiceStack详细配置设置
15 private static ServiceStackDetails _serviceStackDetails;
16
17 //可以自行配置ServiceStack的配置对象
18 private static ServiceStackConfigEntry _serviceStackConfigEntry;
19
20 #endregion
21
22 #region 私有构造函数
23
24 ///
27 private ServiceStackRedisClientProvider() { }
28
29 #endregion
30
31 #region 获取PooledRedisClientManager实例的方法
32
33 ///
39 /// 这是一个布尔值,true表示根据配置文件的配置启动,false表示是根据配置对象启动
40 ///
41 private static PooledRedisClientManager GetInstance(bool startByConfigFile)
42 {
43 if (_instance == null)
44 {
45 lock (lockObject)
46 {
47 if (_instance == null)
48 {
49 string[] readWriteServerList=null;
50 string[] readOnlyServerList=null;
51 RedisClientManagerConfig managerConfig=null;
52
53 //根据我们配置文件中数据来设置启动信息(app.config或者web.config)
54 if (startByConfigFile && (_serviceStackDetails != null))
55 {
56 managerConfig = new RedisClientManagerConfig()
57 {
58 AutoStart = _serviceStackDetails.AutoStart,
59 MaxReadPoolSize = _serviceStackDetails.MaxReadPoolSize,
60 MaxWritePoolSize = _serviceStackDetails.MaxWritePoolSize,
61 };
62
63 readWriteServerList = GetRedisHosts(_serviceStackDetails.ReadWriteHosts);
64 readOnlyServerList = GetRedisHosts(_serviceStackDetails.ReadOnlyHosts);
65 }
66 else if (!startByConfigFile && (_serviceStackConfigEntry != null))//根据配置对象来设置启动信息(ServiceStackConfigEntry)
67 {
68 managerConfig = new RedisClientManagerConfig()
69 {
70 AutoStart = _serviceStackConfigEntry.AutoStart,
71 MaxReadPoolSize = _serviceStackConfigEntry.MaxReadPoolSize,
72 MaxWritePoolSize = _serviceStackConfigEntry.MaxWritePoolSize,
73 };
74
75 readWriteServerList = GetRedisHosts(_serviceStackConfigEntry.ReadWriteHosts);
76 readOnlyServerList = GetRedisHosts(_serviceStackConfigEntry.ReadOnlyHosts);
77 }
78 else
79 {
80 throw new InvalidOperationException("Redis客户端初始化配置失败!");
81 }
82
83 if ((readWriteServerList != null && readWriteServerList.Length > 0)&&(readOnlyServerList != null && readOnlyServerList.Length <= 0))
84 {
85 _instance = new PooledRedisClientManager(readWriteServerList);
86 }
87
88 if ((readWriteServerList != null && readWriteServerList.Length > 0) && (readOnlyServerList != null && readOnlyServerList.Length > 0))
89 {
90 _instance = new PooledRedisClientManager(readWriteServerList, readOnlyServerList, managerConfig);
91 }
92 }
93 }
94 }
95 return _instance;
96 }
97
98 ///
101 /// 包含一个或者多个Redis服务器地址的字符串列表,以逗号做为分隔符
102 ///
103 private static string[] GetRedisHosts(string redisHosts)
104 {
105 if (string.IsNullOrWhiteSpace(redisHosts) || string.IsNullOrEmpty(redisHosts))
106 {
107 return new string[] { };
108 }
109 var hosts=redisHosts.Split(',');
110 foreach (var host in hosts)
111 {
112 if (!Regex.IsMatch(host, @"^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9]):\d{3,4}$"))
113 {
114 throw new InvalidOperationException("Redis服务器地址格式不正确!");
115 }
116 }
117 return hosts;
118 }
119
120 #endregion
121
122 #region 提供对外访问接口
123
124 ///
127 /// 在配置文件中,Redis客户端的名称
128 /// redis逻辑分为16个数据库,排序为:0-15,我们默认使用的是0号数据库,数据库当前的索引值
129 ///
130 public static IRedisClient GetRedisClient(string redisClientName,int databaseIndex = 0)
131 {
132 //获取配置数据
133 ParameterValidityChecker.RequiredParameterStringNotNullOrWhiteSpace(redisClientName, "Redis客户端的名称不能为空!");
134 var _configurationManager = (ConfigurationFrameworkManager)ConfigurationManager.GetSection("Framework");
135 if (_configurationManager != null)
136 {
137 _serviceStackDetails = _configurationManager.RedisClientConfiguration.GetServiceStackDetails(redisClientName);
138 if (_serviceStackDetails == null)
139 {
140 throw new InvalidOperationException("以ServiceStack.Redis为实现技术的Redis客户端的配置有误!");
141 }
142 }
143 else
144 {
145 throw new InvalidOperationException("以ServiceStack.Redis为实现技术的Redis客户端的配置有误!");
146 }
147
148 //实例化Redis客户端实例对象
149 var pooledRedisClientManager = GetInstance(true);
150 var redisClient = pooledRedisClientManager.GetClient();
151 if (!string.IsNullOrEmpty(_serviceStackDetails.Password))
152 {
153 redisClient.Password = _serviceStackDetails.Password;
154 }
155 redisClient.Db = databaseIndex;
156 return redisClient;
157 }
158
159 ///
162 /// 在配置文件中,Redis客户端的名称
163 /// redis逻辑分为16个数据库,排序为:0-15,我们默认使用的是0号数据库,数据库当前的索引值
164 ///
165 public static IRedisClient GetRedisClient(ServiceStackConfigEntry serviceStackConfigEntry, int databaseIndex = 0)
166 {
167 //获取配置数据
168 if (serviceStackConfigEntry == null)
169 {
170 throw new ArgumentNullException("以ServiceStack.Redis为实现技术的Redis客户端的配置对象不能为空!");
171 }
172 else
173 {
174 _serviceStackConfigEntry = serviceStackConfigEntry;
175 }
176
177 if (string.IsNullOrEmpty(_serviceStackConfigEntry.ReadWriteHosts) || string.IsNullOrWhiteSpace(_serviceStackConfigEntry.ReadWriteHosts))
178 {
179 throw new InvalidOperationException("【ReadWriteHosts】必须设置其值!");
180 }
181
182 //实例化Redis客户端实例对象
183 var pooledRedisClientManager = GetInstance(false);
184 var redisClient = pooledRedisClientManager.GetClient();
185 if (!string.IsNullOrEmpty(_serviceStackConfigEntry.Password)&&!string.IsNullOrWhiteSpace(_serviceStackConfigEntry.Password))
186 {
187 redisClient.Password = _serviceStackConfigEntry.Password;
188 }
189 redisClient.Db = databaseIndex;
190 return redisClient;
191 }
192
193 #endregion
194 }
配置实体类 ServiceStackConfigEntry.cs的代码:
1 ///
4 public sealed class ServiceStackConfigEntry
5 {
6 #region 构造函数
7
8 ///
11 public ServiceStackConfigEntry()
12 {
13 ReadWriteHosts = "127.0.0.1:6379";
14 ReadOnlyHosts = string.Empty;
15 MaxWritePoolSize = 200;
16 MaxReadPoolSize = 200;
17 Password = string.Empty;
18 AutoStart = true;
19 }
20
21 #endregion
22
23 #region 配置属性
24
25 ///
28 public string ReadWriteHosts { get; set; }
29
30 ///
33 public string ReadOnlyHosts { get; set; }
34
35 ///
38 public int MaxWritePoolSize { get; set; }
39
40 ///
43 public int MaxReadPoolSize { get; set; }
44
45 ///
48 public string Password { get; set; }
49
50 ///
53 public bool AutoStart { get; set; }
54
55 #endregion
56 }
获取配置文件详情的类型:ServiceStackDetails.cs
///
public sealed class ServiceStackDetails
{
#region 构造函数
/// <summary>
/// 给配置参数初始化默认值
/// </summary>
public ServiceStackDetails()
{
ReadWriteHosts = "127.0.0.1:6379";
ReadOnlyHosts = string.Empty;
MaxWritePoolSize = 200;
MaxReadPoolSize = 200;
Password = string.Empty;
AutoStart = true;
}
#endregion
#region 配置属性
/// <summary>
/// 可读可写的Redis服务器地址,多个地址以逗号分隔,例如:192.168.127.11:6379,192.168.127.128:6380
/// </summary>
public string ReadWriteHosts { get; internal set; }
/// <summary>
/// 只能读的Redis服务器地址,多个地址以逗号分隔,例如:192.168.127.11:6379,192.168.127.128:6380
/// </summary>
public string ReadOnlyHosts { get; internal set; }
/// <summary>
/// 最大写链接数
/// </summary>
public int MaxWritePoolSize { get; internal set; }
/// <summary>
/// 最大读链接数
/// </summary>
public int MaxReadPoolSize { get; internal set; }
/// <summary>
/// 登陆Redis服务器的密码
/// </summary>
public string Password { get; internal set; }
/// <summary>
/// 是否自动启动
/// </summary>
public bool AutoStart { get; internal set; }
#endregion
}
2、这是以【StackExchange.Redis】为实现技术的工具类,对外界的访问接口提供了2个,第一个是以配置文件中自定义的名称参数的,红色代码是和我独立的配置系统相关联的,另一个访问接口是以配置实体类参数的,代码很简单,不多说了。
工具类: StackExchangeRedisClientProvider.cs
1 ///
4 public sealed class StackExchangeRedisClientProvider
5 {
6 #region 私有字段
7
8 ///
11 private static readonly object lockObject = new object();
12
13 ///
16 private static volatile ConnectionMultiplexer _instance;
17
18 ///
21 private static readonly ILog _log = LogManager.GetLogger(typeof(StackExchangeRedisClientProvider));
22
23 private static StackExchangeDetails _stackExchangeDetails;
24
25 private static StackExchangeConfigEntry _stackExchangeConfigEntry;
26
27 #endregion
28
29 #region 私有构造函数
30
31 ///
34 private StackExchangeRedisClientProvider() { }
35
36 #endregion
37
38 #region 获取Redis客户端实例
39
40 ///
47 /// 这是一个布尔值,true表示根据配置文件的配置启动,false表示是根据配置对象启动
48 ///
49 private static ConnectionMultiplexer GetInstance(bool startByConfigFile)
50 {
51 if (startByConfigFile)
52 {
53 GetRedisHosts(_stackExchangeDetails.Hosts);
54 }
55 else
56 {
57 GetRedisHosts(_stackExchangeConfigEntry.Hosts);
58 }
59
60 if (_instance == null || !_instance.IsConnected)
61 {
62 lock (lockObject)
63 {
64 if (_instance == null || !_instance.IsConnected)
65 {
66 if (startByConfigFile)
67 {
68 _instance = ConnectionMultiplexer.Connect(_stackExchangeDetails.Hosts);
69 }
70 else
71 {
72 _instance = ConnectionMultiplexer.Connect(_stackExchangeConfigEntry.Hosts);
73 }
74 }
75 }
76 }
77 _instance.ErrorMessage += MuxerErrorMessage;
78 _instance.HashSlotMoved += MuxerHashSlotMoved;
79 _instance.InternalError += MuxerInternalError;
80 _instance.ConnectionFailed += MuxerConnectionFailed;
81 _instance.ConnectionRestored += MuxerConnectionRestored;
82 _instance.ConfigurationChanged += MuxerConfigurationChanged;
83 return _instance;
84 }
85
86 ///
89 /// 包含一个或者多个Redis服务器地址的字符串列表,以逗号做为分隔符
90 private static void GetRedisHosts(string redisHosts)
91 {
92 if (string.IsNullOrWhiteSpace(redisHosts) || string.IsNullOrEmpty(redisHosts))
93 {
94 return;
95 }
96 var hosts = redisHosts.Split(',');
97 foreach (var host in hosts)
98 {
99 if (!Regex.IsMatch(host, @"^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9]):\d{3,4}$"))
100 {
101 throw new InvalidOperationException("Redis服务器地址格式不正确!");
102 }
103 }
104 }
105
106 ///
109 /// 在配置文件中,Redis客户端的名称
110 /// redis逻辑分为16个数据库,排序为:0-15,我们默认使用的是0号数据库,数据库当前的索引值
111 ///
112 public static IDatabase GetRedisClient(string redisClientName, int databaseIndex =0)
113 {
114 //获取配置数据
115 ParameterValidityChecker.RequiredParameterStringNotNullOrWhiteSpace(redisClientName, "Redis客户端的名称不能为空!");
116 var _configurationManager = (ConfigurationFrameworkManager)ConfigurationManager.GetSection("Framework");
117 if (_configurationManager != null)
118 {
119 _stackExchangeDetails = _configurationManager.RedisClientConfiguration.GetStackExchangeDetails(redisClientName);
120 if (_stackExchangeDetails == null)
121 {
122 throw new InvalidOperationException("以StackExchange.Redis为实现技术的Redis客户端的配置有误!");
123 }
124 }
125 else
126 {
127 throw new InvalidOperationException("以StackExchange.Redis为实现技术的Redis客户端的配置有误!");
128 }
129
130 //实例化Redis客户端实例对象
131 var instance = GetInstance(true);
132 return instance.GetDatabase(databaseIndex);
133 }
134
135 ///
138 /// StackExchange配置对象
139 /// redis逻辑分为16个数据库,排序为:0-15,我们默认使用的是0号数据库,数据库当前的索引值
140 ///
141 public static IDatabase GetRedisClient(StackExchangeConfigEntry stackExchangeConfigEntry, int databaseIndex =0)
142 {
143 //获取配置数据
144 if (stackExchangeConfigEntry == null)
145 {
146 throw new ArgumentNullException("以StackExchange.Redis为实现技术的Redis客户端的配置对象不能为空!");
147 }
148 else
149 {
150 _stackExchangeConfigEntry = stackExchangeConfigEntry;
151 }
152
153 if (string.IsNullOrEmpty(_stackExchangeConfigEntry.Hosts) || string.IsNullOrWhiteSpace(_stackExchangeConfigEntry.Hosts))
154 {
155 throw new InvalidOperationException("【Hosts】必须设置其值!");
156 }
157
158 //实例化Redis客户端实例对象
159 var instance = GetInstance(false);
160 return instance.GetDatabase(databaseIndex);
161 }
162
163 #endregion
164 }
配置实体类:StackExchangeConfigEntry.cs
1 ///
4 public sealed class StackExchangeConfigEntry
5 {
6 #region 构造函数
7
8 ///
11 public StackExchangeConfigEntry()
12 {
13 Hosts = "127.0.0.1:6379";
14 Password = string.Empty;
15 }
16
17 #endregion
18
19 #region 配置属性
20
21 ///
24 public string Hosts { get; set; }
25
26 ///
29 public string Password { get; set; }
30
31 #endregion
32 }
根据配置信息获取数据的类型:StackExchangeDetails.cs
1 ///
4 public sealed class StackExchangeDetails
5 {
6 #region 构造函数
7
8 ///
11 public StackExchangeDetails()
12 {
13 Hosts = "127.0.0.1:6379";
14 Password = string.Empty;
15 }
16
17 #endregion
18
19 #region 配置属性
20
21 ///
24 public string Hosts{ get; internal set; }
25
26 ///
29 public string Password { get; internal set; }
30
31 #endregion
32 }
四、结束
好了,今天就写到这里了,先说明一下,这两个类暂时没有提供统一的接口,看以后的需要吧,如果有需要,我在重构。StackExchangeDetails 和 ServiceStackDetails 这两个类在这个 Enterprise.Framework.Configuration 命名空间,配置的系统暂时就不贴代码了,代码很多,其他的类型都在 Enterprise.Framework.NoSQL.RedisClient 这个命名空间下边。
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