1 /// <summary>
2 /// Redis读写帮助类
3 /// </summary>
4 public class RedisHelper
5 {
6 private ConnectionMultiplexer redis { get; set; }
7 private IDatabase db { get; set; }
8 public RedisHelper(string connection)
9 {
10 redis = ConnectionMultiplexer.Connect(connection);
11 db = redis.GetDatabase(1);
12 }
13 #region string类型操作
14 /// <summary>
15 /// set or update the value for string key
16 /// </summary>
17 /// <param name="key"></param>
18 /// <param name="value"></param>
19 /// <returns></returns>
20 public bool SetStringValue(string key, string value)
21 {
22 return db.StringSet(key, value);
23 }
24 /// <summary>
25 /// 保存单个key value
26 /// </summary>
27 /// <param name="key">Redis Key</param>
28 /// <param name="value">保存的值</param>
29 /// <param name="expiry">过期时间</param>
30 /// <returns></returns>
31 public bool SetStringKey(string key, string value, TimeSpan? expiry = default(TimeSpan?))
32 {
33 return db.StringSet(key, value, expiry);
34 }
35 /// <summary>
36 /// 保存一个对象
37 /// </summary>
38 /// <typeparam name="T"></typeparam>
39 /// <param name="key"></param>
40 /// <param name="obj"></param>
41 /// <returns></returns>
42 public bool SetStringKey<T>(string key, T obj, TimeSpan? expiry = default(TimeSpan?))
43 {
44 string json = JsonConvert.SerializeObject(obj);
45 return db.StringSet(key, json, expiry);
46 }
47 /// <summary>
48 /// 获取一个key的对象
49 /// </summary>
50 /// <typeparam name="T"></typeparam>
51 /// <param name="key"></param>
52 /// <returns></returns>
53 public T GetStringKey<T>(string key) where T : class
54 {
55 var result = db.StringGet(key);
56 if (string.IsNullOrEmpty(result))
57 {
58 return null;
59 }
60 return JsonConvert.DeserializeObject<T>(result);
61 }
62 /// <summary>
63 /// get the value for string key
64 /// </summary>
65 /// <param name="key"></param>
66 /// <returns></returns>
67 public string GetStringValue(string key)
68 {
69 return db.StringGet(key);
70 }
71
72 /// <summary>
73 /// Delete the value for string key
74 /// </summary>
75 /// <param name="key"></param>
76 /// <returns></returns>
77 public bool DeleteStringKey(string key)
78 {
79 return db.KeyDelete(key);
80 }
81 #endregion
82
83 #region 哈希类型操作
84 /// <summary>
85 /// set or update the HashValue for string key
86 /// </summary>
87 /// <param name="key"></param>
88 /// <param name="hashkey"></param>
89 /// <param name="value"></param>
90 /// <returns></returns>
91 public bool SetHashValue(string key, string hashkey, string value)
92 {
93 return db.HashSet(key, hashkey, value);
94 }
95 /// <summary>
96 /// set or update the HashValue for string key
97 /// </summary>
98 /// <typeparam name="T"></typeparam>
99 /// <param name="key"></param>
100 /// <param name="hashkey"></param>
101 /// <param name="t">defined class</param>
102 /// <returns></returns>
103 public bool SetHashValue<T>(String key, string hashkey, T t) where T : class
104 {
105 var json = JsonConvert.SerializeObject(t);
106 return db.HashSet(key, hashkey, json);
107 }
108 /// <summary>
109 /// 保存一个集合
110 /// </summary>
111 /// <typeparam name="T"></typeparam>
112 /// <param name="key">Redis Key</param>
113 /// <param name="list">数据集合</param>
114 /// <param name="getModelId"></param>
115 public void HashSet<T>(string key, List<T> list, Func<T, string> getModelId)
116 {
117 List<HashEntry> listHashEntry = new List<HashEntry>();
118 foreach (var item in list)
119 {
120 string json = JsonConvert.SerializeObject(item);
121 listHashEntry.Add(new HashEntry(getModelId(item), json));
122 }
123 db.HashSet(key, listHashEntry.ToArray());
124 }
125 /// <summary>
126 /// 获取hashkey所有的值
127 /// </summary>
128 /// <typeparam name="T"></typeparam>
129 /// <param name="key"></param>
130 /// <returns></returns>
131 public List<T> HashGetAll<T>(string key) where T : class
132 {
133 List<T> result = new List<T>();
134 HashEntry[] arr = db.HashGetAll(key);
135 foreach (var item in arr)
136 {
137 if (!item.Value.IsNullOrEmpty)
138 {
139 result.Add(JsonConvert.DeserializeObject<T>(item.Value));
140
141 }
142 }
143 return result;
144 //result =JsonHelper.DeserializeJsonToList<T>(arr.ToString());
145 //return result;
146 }
147 /// <summary>
148 /// get the HashValue for string key and hashkey
149 /// </summary>
150 /// <param name="key">Represents a key that can be stored in redis</param>
151 /// <param name="hashkey"></param>
152 /// <returns></returns>
153 public RedisValue GetHashValue(string key, string hashkey)
154 {
155 RedisValue result = db.HashGet(key, hashkey);
156 return result;
157 }
158 /// <summary>
159 /// get the HashValue for string key and hashkey
160 /// </summary>
161 /// <param name="key">Represents a key that can be stored in redis</param>
162 /// <param name="hashkey"></param>
163 /// <returns></returns>
164 public T GetHashValue<T>(string key, string hashkey) where T : class
165 {
166 RedisValue result = db.HashGet(key, hashkey);
167 if (string.IsNullOrEmpty(result))
168 {
169 return null;
170 }
171 return JsonConvert.DeserializeObject<T>(result);
172 }
173 /// <summary>
174 /// delete the HashValue for string key and hashkey
175 /// </summary>
176 /// <param name="key"></param>
177 /// <param name="hashkey"></param>
178 /// <returns></returns>
179 public bool DeleteHashValue(string key, string hashkey)
180 {
181 return db.HashDelete(key, hashkey);
182 }
183 #endregion
184 }
浙公网安备 33010602011771号