服务搭建好以后可以使用.net版本redis操作类库ServiceStack.Redis来操作redis，本文会用到以下三个dll。
初始化RedisClient对象
var client = new RedisClient("120.26.197.185", 6379);一、主要类型简介
1.String
String是最常用的一种数据类型，普通的key/value存储都可以归为此类，value其实不仅是String，也可以是数字
比如想知道什么时候封锁一个IP地址(访问超过几次)。INCRBY命令让这些变得很容易，通过原子递增保持计数。
#"字符串类型"
client.Set<string>("name", "laowang");
string userName = client.Get<string>("name");
Console.WriteLine(userName);
//访问次数
client.Set<int>("IpAccessCount", 0);
//次数递增
client.Incr("IpAccessCount");
Console.WriteLine(client.Get<int>("IpAccessCount"));
2.Hash
一个hashid可以存储多项信息，每一项信息也有自己的key。
client.SetEntryInHash("userInfoId", "name", "zhangsan");
client.SetEntryInHash("userInfoId", "name1", "zhangsan1");
client.SetEntryInHash("userInfoId", "name2", "zhangsan2");
client.SetEntryInHash("userInfoId", "name3", "zhangsan3");
client.GetHashKeys("userInfoId").ForEach(e => Console.WriteLine(e));
client.GetHashValues("userInfoId").ForEach(e => Console.WriteLine(e));
3.List
应用场景：
- Redis list的应用场景非常多，也是Redis最重要的数据结构之一。
- 我们可以轻松地实现最新消息排行等功能。
- Lists的另一个应用就是消息队列，可以利用Lists的PUSH操作，将任务存在Lists中，然后工作线程再用POP操作将任务取出进行执行。
#"List类型"
client.AddItemToList("userInfoId1", "123");
client.AddItemToList("userInfoId1", "1234");
Console.WriteLine("List数据项条数:" + client.GetListCount("userInfoId1"));
Console.WriteLine("List数据项第一条数据:" + client.GetItemFromList("userInfoId1", 0));
Console.WriteLine("List所有数据");
client.GetAllItemsFromList("userInfoId1").ForEach(e => Console.WriteLine(e));
#"List类型做为队列和栈使用"
Console.WriteLine(client.GetListCount("userInfoId1"));
//队列先进先出
//Console.WriteLine(client.DequeueItemFromList("userInfoId1"));
//Console.WriteLine(client.DequeueItemFromList("userInfoId1"));
//栈后进先出
Console.WriteLine("出栈"+client.PopItemFromList("userInfoId1"));
Console.WriteLine("出栈"+client.PopItemFromList("userInfoId1"));
4.Set
应用场景：
- Redis set对外提供的功能与list类似是一个列表的功能，特殊之处在于set是可以自动排重的，当你需要存储一个列表数据，又不希望出现重复数据时，set是一个很好的选择，并且set提供了判断某个成员是否在一个set集合内的重要接口，这个也是list所不能提供的。
- 比如在微博应用中，每个人的好友存在一个集合（set）中，这样求两个人的共同好友的操作，可能就只需要用求交集命令即可。
- Redis还为集合提供了求交集、并集、差集等操作，可以非常方便的实
client.AddItemToSet("A", "B");
client.AddItemToSet("A", "C");
client.AddItemToSet("A", "D");
client.AddItemToSet("A", "E");
client.AddItemToSet("A", "F");
client.AddItemToSet("B", "C");
client.AddItemToSet("B", "F");
//求差集
Console.WriteLine("A,B集合差集");
client.GetDifferencesFromSet("A", "B").ToList<string>().ForEach(e => Console.Write(e + ","));
//求集合交集
Console.WriteLine("\nA,B集合交集");
client.GetIntersectFromSets(new string[] { "A", "B" }).ToList<string>().ForEach(e => Console.Write(e + ","));
//求集合并集
Console.WriteLine("\nA,B集合并集");
client.GetUnionFromSets(new string[] { "A", "B" }).ToList<string>().ForEach(e => Console.Write(e + ","));
5.Sort Set(排序)
应用场景：
- 以某个条件为权重，比如按顶的次数排序.
- ZREVRANGE命令可以用来按照得分来获取前100名的用户，ZRANK可以用来获取用户排名，非常直接而且操作容易。
- Redis sorted set的使用场景与set类似，区别是set不是自动有序的，而sorted set可以通过用户额外提供一个优先级(score)的参数来为成员排序，并且是插入有序的，即自动排序。
- 比如:twitter 的public timeline可以以发表时间作为score来存储，这样获取时就是自动按时间排好序的。
- 比如:全班同学成绩的SortedSets，value可以是同学的学号，而score就可以是其考试得分，这样数据插入集合的，就已经进行了天然的排序。
- 另外还可以用Sorted Sets来做带权重的队列，比如普通消息的score为1，重要消息的score为2，然后工作线程可以选择按score的倒序来获取工作任务。让重要的任务优先执行。
#"有序Set操作"
client.AddItemToSortedSet("SA", "B", 2);
client.AddItemToSortedSet("SA", "C", 1);
client.AddItemToSortedSet("SA", "D", 5);
client.AddItemToSortedSet("SA", "E", 3);
client.AddItemToSortedSet("SA", "F", 4);
//有序集合降序排列
Console.WriteLine("\n有序集合降序排列");
client.GetAllItemsFromSortedSetDesc("SA").ForEach(e => Console.Write(e + ","));
Console.WriteLine("\n有序集合升序序排列");
client.GetAllItemsFromSortedSet("SA").ForEach(e => Console.Write(e + ","));
client.AddItemToSortedSet("SB", "C", 2);
client.AddItemToSortedSet("SB", "F", 1);
client.AddItemToSortedSet("SB", "D", 3);
Console.WriteLine("\n获得某个值在有序集合中的排名，按分数的升序排列");
Console.WriteLine(client.GetItemIndexInSortedSet("SB", "D"));
Console.WriteLine("\n获得有序集合中某个值得分数");
Console.WriteLine(client.GetItemScoreInSortedSet("SB", "D"));
Console.WriteLine("\n获得有序集合中，某个排名范围的所有值");
client.GetRangeFromSortedSet("SA", 0, 3).ForEach(e => Console.Write(e + ","));
二、封装扩展
1.最后提供一份别人写好的Redis操作的帮助类，用到了PooledRedisClientManager连接池来获取RedisClient，
同时用到了读写分离的概念，可以直接拿来使用。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using ServiceStack.Redis;
namespace Com.Redis{
public class RedisBase{
private static string[] ReadWriteHosts = System.Configuration.ConfigurationSettings.AppSettings["readWriteHosts"].Split(new char[] { ';' });
private static string[] ReadOnlyHosts = System.Configuration.ConfigurationSettings.AppSettings["readOnlyHosts"].Split(new char[] { ';' });
#region -- 连接信息 --
public static PooledRedisClientManager prcm = CreateManager(ReadWriteHosts, ReadOnlyHosts);
private static PooledRedisClientManager CreateManager(string[] readWriteHosts, string[] readOnlyHosts){
// 支持读写分离，均衡负载
return new PooledRedisClientManager(readWriteHosts, readOnlyHosts, new RedisClientManagerConfig{
MaxWritePoolSize = 5, // “写”链接池链接数
MaxReadPoolSize = 5, // “读”链接池链接数
AutoStart = true,
});
}
#-- Item --
/// <summary>
/// 设置单体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="t"></param>
/// <param name="timeSpan"></param>
/// <returns></returns>
public static bool Item_Set<T>(string key, T t){
try{
using (IRedisClient redis = prcm.GetClient()){
return redis.Set<T>(key, t, new TimeSpan(1, 0, 0));
}
}catch (Exception ex){
// LogInfo
}
return false;
}
/// <summary>
/// 获取单体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public static T Item_Get<T>(string key) where T : class{
using (IRedisClient redis = prcm.GetClient()){
return redis.Get<T>(key);
}
}
/// <summary>
/// 移除单体
/// </summary>
/// <param name="key"></param>
public static bool Item_Remove(string key){
using (IRedisClient redis = prcm.GetClient()){
return redis.Remove(key);
}
}
#-- List --
public static void List_Add<T>(string key, T t){
using (IRedisClient redis = prcm.GetClient()){
var redisTypedClient = redis.GetTypedClient<T>();
redisTypedClient.AddItemToList(redisTypedClient.Lists[key], t);
}
}
public static bool List_Remove<T>(string key, T t){
using (IRedisClient redis = prcm.GetClient()){
var redisTypedClient = redis.GetTypedClient<T>();
return redisTypedClient.RemoveItemFromList(redisTypedClient.Lists[key], t) > 0;
}
}
public static void List_RemoveAll<T>(string key){
using (IRedisClient redis = prcm.GetClient()){
var redisTypedClient = redis.GetTypedClient<T>();
redisTypedClient.Lists[key].RemoveAll();
}
}
public static int List_Count(string key){
using (IRedisClient redis = prcm.GetReadOnlyClient()){
return redis.GetListCount(key);
}
}
public static List<T> List_GetRange<T>(string key, int start, int count){
using (IRedisClient redis = prcm.GetReadOnlyClient()){
var c = redis.GetTypedClient<T>();
return c.Lists[key].GetRange(start, start + count - 1);
}
}
public static List<T> List_GetList<T>(string key){
using (IRedisClient redis = prcm.GetReadOnlyClient()){
var c = redis.GetTypedClient<T>();
return c.Lists[key].GetRange(0, c.Lists[key].Count);
}
}
public static List<T> List_GetList<T>(string key, int pageIndex, int pageSize){
int start = pageSize * (pageIndex - 1);
return List_GetRange<T>(key, start, pageSize);
}
/// <summary>
/// 设置缓存过期
/// </summary>
/// <param name="key"></param>
/// <param name="datetime"></param>
public static void List_SetExpire(string key, DateTime datetime){
using (IRedisClient redis = prcm.GetClient()){
redis.ExpireEntryAt(key, datetime);
}
}
# -- Set --
public static void Set_Add<T>(string key, T t){
using (IRedisClient redis = prcm.GetClient()){
var redisTypedClient = redis.GetTypedClient<T>();
redisTypedClient.Sets[key].Add(t);
}
}
public static bool Set_Contains<T>(string key, T t){
using (IRedisClient redis = prcm.GetClient()){
var redisTypedClient = redis.GetTypedClient<T>();
return redisTypedClient.Sets[key].Contains(t);
}
}
public static bool Set_Remove<T>(string key, T t){
using (IRedisClient redis = prcm.GetClient()){
var redisTypedClient = redis.GetTypedClient<T>();
return redisTypedClient.Sets[key].Remove(t);
}
}
# -- Hash --
/// <summary>
/// 判断某个数据是否已经被缓存
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public static bool Hash_Exist<T>(string key, string dataKey){
using (IRedisClient redis = prcm.GetReadOnlyClient()){
return redis.HashContainsEntry(key, dataKey);
}
}
/// <summary>
/// 存储数据到hash表
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public static bool Hash_Set<T>(string key, string dataKey, T t){
using (IRedisClient redis = prcm.GetClient()){
string value = ServiceStack.Text.JsonSerializer.SerializeToString<T>(t);
return redis.SetEntryInHash(key, dataKey, value);
}
}
/// <summary>
/// 移除hash中的某值
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public static bool Hash_Remove(string key, string dataKey){
using (IRedisClient redis = prcm.GetClient()){
return redis.RemoveEntryFromHash(key, dataKey);
}
}
/// <summary>
/// 移除整个hash
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public static bool Hash_Remove(string key){
using (IRedisClient redis = prcm.GetClient()){
return redis.Remove(key);
}
}
/// <summary>
/// 从hash表获取数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="dataKey"></param>
/// <returns></returns>
public static T Hash_Get<T>(string key, string dataKey){
using (IRedisClient redis = prcm.GetReadOnlyClient()){
string value = redis.GetValueFromHash(key, dataKey);
return ServiceStack.Text.JsonSerializer.DeserializeFromString<T>(value);
}
}
/// <summary>
/// 获取整个hash的数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public static List<T> Hash_GetAll<T>(string key){
using (IRedisClient redis = prcm.GetReadOnlyClient()){
var list = redis.GetHashValues(key);
if (list != null && list.Count > 0){
List<T> result = new List<T>();
foreach (var item in list){
var value = ServiceStack.Text.JsonSerializer.DeserializeFromString<T>(item);
result.Add(value);
}
return result;
}
return null;
}
}
/// <summary>
/// 设置缓存过期
/// </summary>
/// <param name="key"></param>
/// <param name="datetime"></param>
public static void Hash_SetExpire(string key, DateTime datetime){
using (IRedisClient redis = prcm.GetClient()){
redis.ExpireEntryAt(key, datetime);
}
}
#-- SortedSet --
/// <summary>
/// 添加数据到 SortedSet
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="t"></param>
/// <param name="score"></param>
public static bool SortedSet_Add<T>(string key, T t, double score){
using (IRedisClient redis = prcm.GetClient()){
string value = ServiceStack.Text.JsonSerializer.SerializeToString<T>(t);
return redis.AddItemToSortedSet(key, value, score);
}
}
/// <summary>
/// 移除数据从SortedSet
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="t"></param>
/// <returns></returns>
public static bool SortedSet_Remove<T>(string key, T t){
using (IRedisClient redis = prcm.GetClient()){
string value = ServiceStack.Text.JsonSerializer.SerializeToString<T>(t);
return redis.RemoveItemFromSortedSet(key, value);
}
}
/// <summary>
/// 修剪SortedSet
/// </summary>
/// <param name="key"></param>
/// <param name="size">保留的条数</param>
/// <returns></returns>
public static int SortedSet_Trim(string key, int size){
using (IRedisClient redis = prcm.GetClient()){
return redis.RemoveRangeFromSortedSet(key, size, 9999999);
}
}
/// <summary>
/// 获取SortedSet的长度
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public static int SortedSet_Count(string key){
using (IRedisClient redis = prcm.GetReadOnlyClient()){
return redis.GetSortedSetCount(key);
}
}
/// <summary>
/// 获取SortedSet的分页数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <returns></returns>
public static List<T> SortedSet_GetList<T>(string key, int pageIndex, int pageSize){
using (IRedisClient redis = prcm.GetReadOnlyClient()){
var list = redis.GetRangeFromSortedSet(key, (pageIndex - 1) * pageSize, pageIndex * pageSize - 1);
if (list != null && list.Count > 0){
List<T> result = new List<T>();
foreach (var item in list){
var data = ServiceStack.Text.JsonSerializer.DeserializeFromString<T>(item);
result.Add(data);
}
return result;
}
}
return null;
}
/// <summary>
/// 获取SortedSet的全部数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <returns></returns>
public static List<T> SortedSet_GetListALL<T>(string key){
using (IRedisClient redis = prcm.GetReadOnlyClient()){
var list = redis.GetRangeFromSortedSet(key, 0, 9999999);
if (list != null && list.Count > 0){
List<T> result = new List<T>();
foreach (var item in list){
var data = ServiceStack.Text.JsonSerializer.DeserializeFromString<T>(item);
result.Add(data);
}
return result;
}
}
return null;
}
/// <summary>
/// 设置缓存过期
/// </summary>
/// <param name="key"></param>
/// <param name="datetime"></param>
public static void SortedSet_SetExpire(string key, DateTime datetime){
using (IRedisClient redis = prcm.GetClient()){
redis.ExpireEntryAt(key, datetime);
}
}
}
}
2.使用很简单，几行代码
//会往主服务里面写入
RedisBase.Hash_Set<string>("PooledRedisClientManager", "one", "123");
//从服务里面读取信息
RedisBase.Hash_Get<string>("PooledRedisClientManager", "one");
3.连接池的初始化
private static string[] ReadWriteHosts = System.Configuration.ConfigurationSettings.AppSettings["readWriteHosts"].Split(new char[] { ';' });
private static string[] ReadOnlyHosts = System.Configuration.ConfigurationSettings.AppSettings["readOnlyHosts"].Split(new char[] { ';' });
# -- 连接信息 --
public static PooledRedisClientManager prcm = CreateManager(ReadWriteHosts, ReadOnlyHosts);
private static PooledRedisClientManager CreateManager(string[] readWriteHosts, string[] readOnlyHosts){
// 支持读写分离，均衡负载
return new PooledRedisClientManager(readWriteHosts, readOnlyHosts, new RedisClientManagerConfig{
MaxWritePoolSize = 5, // “写”链接池链接数
MaxReadPoolSize = 5, // “读”链接池链接数
AutoStart = true,
});
}
4.配置文件
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