接着上一篇,下面转到hash类型的代码使用
Hash:结构 key-key-value,通过索引快速定位到指定元素的,可直接修改某个字段
代码语言:javascript复制 /// <summary>
/// Hash:类似dictionary,通过索引快速定位到指定元素的,耗时均等,跟string的区别在于不用反序列化,直接修改某个字段
/// string的话要么是 001:序列化整个实体
/// 要么是 001_name: 001_pwd: 多个key-value
/// Hash的话,一个hashid-{key:value;key:value;key:value;}
/// 可以一次性查找实体,也可以单个,还可以单个修改
/// </summary>
public class RedisHashService : RedisBase
{
#region 添加
/// <summary>
/// 向hashid集合中添加key/value
/// </summary>
public bool SetEntryInHash(string hashid, string key, string value)
{
return base.iClient.SetEntryInHash(hashid, key, value);
}
/// <summary>
/// 如果hashid集合中存在key/value则不添加返回false,
/// 如果不存在在添加key/value,返回true
/// </summary>
public bool SetEntryInHashIfNotExists(string hashid, string key, string value)
{
return base.iClient.SetEntryInHashIfNotExists(hashid, key, value);
}
/// <summary>
/// 存储对象T t到hash集合中
/// 需要包含Id,然后用Id获取
/// </summary>
public void StoreAsHash<T>(T t)
{
base.iClient.StoreAsHash<T>(t);
}
#endregion
#region 获取
/// <summary>
/// 获取对象T中ID为id的数据。
/// </summary>
public T GetFromHash<T>(object id)
{
return base.iClient.GetFromHash<T>(id);
}
/// <summary>
/// 获取所有hashid数据集的key/value数据集合
/// </summary>
public Dictionary<string, string> GetAllEntriesFromHash(string hashid)
{
return base.iClient.GetAllEntriesFromHash(hashid);
}
/// <summary>
/// 获取hashid数据集中的数据总数
/// </summary>
public long GetHashCount(string hashid)
{
return base.iClient.GetHashCount(hashid);
}
/// <summary>
/// 获取hashid数据集中所有key的集合
/// </summary>
public List<string> GetHashKeys(string hashid)
{
return base.iClient.GetHashKeys(hashid);
}
/// <summary>
/// 获取hashid数据集中的所有value集合
/// </summary>
public List<string> GetHashValues(string hashid)
{
return base.iClient.GetHashValues(hashid);
}
/// <summary>
/// 获取hashid数据集中,key的value数据
/// </summary>
public string GetValueFromHash(string hashid, string key)
{
return base.iClient.GetValueFromHash(hashid, key);
}
/// <summary>
/// 获取hashid数据集中,多个keys的value集合
/// </summary>
public List<string> GetValuesFromHash(string hashid, string[] keys)
{
return base.iClient.GetValuesFromHash(hashid, keys);
}
#endregion
#region 删除
/// <summary>
/// 删除hashid数据集中的key数据
/// </summary>
public bool RemoveEntryFromHash(string hashid, string key)
{
return base.iClient.RemoveEntryFromHash(hashid, key);
}
#endregion
#region 其它
/// <summary>
/// 判断hashid数据集中是否存在key的数据
/// </summary>
public bool HashContainsEntry(string hashid, string key)
{
return base.iClient.HashContainsEntry(hashid, key);
}
/// <summary>
/// 给hashid数据集key的value加countby,返回相加后的数据
/// </summary>
public double IncrementValueInHash(string hashid, string key, double countBy)
{
return base.iClient.IncrementValueInHash(hashid, key, countBy);
}
#endregion
}
添加
代码语言:javascript复制 //1. 添加
UserInfo userInfo = new UserInfo() { Id = 3, Age = 50, Name = "zxl", Pwd = "123456" };
//添加第一种方式
client.SetEntryInHash("UserInfor_001", "0000", "11111");
client.SetEntryInHash("UserInfor_001", nameof(userInfo.Id), userInfo.Id.ToString());
client.SetEntryInHash("UserInfor_001", nameof(userInfo.Age), userInfo.Age.ToString());
client.SetEntryInHash("UserInfor_001", nameof(userInfo.Name), userInfo.Name.ToString());
client.SetEntryInHash("UserInfor_001", nameof(userInfo.Pwd), userInfo.Pwd.ToString());
//不存在则添加
bool b1= client.SetEntryInHashIfNotExists("UserInfor_001", nameof(userInfo.Pwd), userInfo.Pwd.ToString());
bool b2= client.SetEntryInHashIfNotExists("UserInfor_001", "潇洒", "小康1000000");
UserInfo userInfo2 = new UserInfo() { Id = 4, Age = 60, Name = "萧十一郎", Pwd = "123456" };
UserInfo userInfo3 = new UserInfo() { Id = 5, Age = 66, Name = "萧十一郎66", Pwd = "123456" };
//添加第二种方式 UserInfo 必须有Id属性
client.StoreAsHash<UserInfo>(userInfo2);
client.StoreAsHash<UserInfo>(userInfo3);
获取
代码语言:javascript复制 //2.获取
string hashId = "UserInfor_001";
//获取所有hashid数据集的key / value数据集合
Dictionary<string, string> data1 = client.GetAllEntriesFromHash(hashId);
//获取hashid的数据总数
long data2 = client.GetHashCount(hashId);
//获取hashid数据集中所有key的集合
List<string>data3= client.GetHashKeys(hashId);
//获取hashid数据集中的所有value集合
List<string> data4= client.GetHashValues(hashId);
UserInfo data5= client.GetFromHash<UserInfo>(hashId);
//单个value的读取
string age = client.GetValueFromHash(hashId, nameof(userInfo.Age));
string name = client.GetValueFromHash(hashId, nameof(userInfo.Name));
删除
代码语言:javascript复制 //3. 删除
client.RemoveEntryFromHash(hashId, nameof(userInfo.Pwd));
修改
代码语言:javascript复制//4. 修改
client.SetEntryInHash(hashId, nameof(userInfo.Name), "zzzxxxlll");