/// <summary>
/// 刷新缓存
/// </summary>
private void ReloadCache()
{
_isReloading = true;
WriteColorLine($"正在执行缓存刷新", ConsoleColor.Green);
Thread.Sleep(2 * 1000);
RedisDb.Set(_cacheList[_reloadCache], $"[{DateTime.Now}]{_cacheList[_reloadCache]}");
RedisDb.Expire(_cacheList[_reloadCache], 30);
_nextReloadTime = DateTime.Now.AddSeconds(1);
WriteColorLine($"执行缓存刷新完毕", ConsoleColor.Green);
_isReloading = false;
}
private void SetCache3(Person model)
{
lock (_lock3)
{
Task.Run(() =>
{
Thread.Sleep(1 * 1000);
//全表重建缓存
var cacheKey = $"BrokeBigKey:{SimpleHash(model.Id)}";
RedisDb.HSet(cacheKey, model.Id.ToString(), model);
RedisDb.Expire(cacheKey, 1 + new Random().Next(0, 20) / 10);
});
}
}
/// <summary>
/// 单个缓存
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
private Person GetCache(int id)
{
var cacheKey = "PenetrationCache2";
var getCache = RedisDb.HGet(cacheKey, id.ToString());
if (getCache == null)
{
var dt = GetDbData(id);
RedisDb.HSet(cacheKey, id.ToString(), dt);
return(dt);
}
RedisDb.Expire(cacheKey, 10);
return(Newtonsoft.Json.JsonConvert.DeserializeAnonymousType(getCache, new Person()));
}
private void SetCache2(Person model)
{
lock (_lock2)
{
var allData = GetDbAll();
Task.Run(() =>
{
var cacheKey = "BrokeBigKey";
Thread.Sleep(1 * 1000);
//全表重建缓存
RedisDb.HSet(cacheKey, model.Id.ToString(), model);
RedisDb.Expire(cacheKey, 1);
});
}
}
private void DoSomething2(int id)
{
var cacheKey = $"RedisLock2:{id}";
if (RedisDb.SetNx(cacheKey, "1"))
{
//关注点1：设置过期时间失败
RedisDb.Expire(cacheKey, 5);
WriteColorLine($"正在处理ID【{id}】", ConsoleColor.Green);
Thread.Sleep(1 * 1000);
WriteColorLine($"处理ID结束【{id}】", ConsoleColor.Red);
//关注点2：超时删除
RedisDb.Del(cacheKey);
}
else
{
WriteColorLine($"ID【{id}】正在处理中", ConsoleColor.Yellow);
}
}
/// <summary>
/// 集合
/// </summary>
private void ShowSet()
{
//获取人员访问记录
var userList = new List <string>();
for (int i = 0; i < 100; i++)
{
userList.Add($"Account{i}");
}
var cacheKey = "AccountIn";
for (int i = 0; i < 100; i++)
{
Thread.Sleep(1);
RedisDb.SAdd(cacheKey, userList[new Random().Next(0, userList.Count)]);
}
RedisDb.Expire(cacheKey, 2);
WriteColorLine("访问人数:" + RedisDb.SCard(cacheKey), ConsoleColor.Blue);
foreach (var item in RedisDb.SMembers(cacheKey))
{
WriteColorLine(item, ConsoleColor.Blue);
}
}
/// <summary>
/// 全表重建缓存导致无法缓存不存在的Key
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
private Person GetCache2(int id)
{
var cacheKey = "PenetrationCache2";
var getCache = RedisDb.HGet(cacheKey, id.ToString());
if (getCache == null)
{
//全表重建缓存
var pinple = RedisDb.StartPipe();
foreach (var item in GetDbAll())
{
pinple.HSet(cacheKey, item.Id.ToString(), item);
}
pinple.EndPipe();
getCache = RedisDb.HGet(cacheKey, id.ToString());
}
RedisDb.Expire(cacheKey, 10);
if (getCache == null)
{
return(GetDbData(id));
}
return(Newtonsoft.Json.JsonConvert.DeserializeAnonymousType(getCache, new Person()));
}
/// <summary>
/// 地图
/// </summary>
private void ShowGeo()
{
var ran = new Random();
for (int i = 0; i < 100; i++)
{
RedisDb.GeoAdd("GeoKey1", new Random(Guid.NewGuid().GetHashCode()).Next(10400, 10600) / 100m, new Random(Guid.NewGuid().GetHashCode()).Next(7900, 8100) / 100m, $"mem{i}");
}
var myPlace = (105, 80);
RedisDb.GeoAdd("GeoKey1", myPlace.Item1, myPlace.Item2, $"myplace");
RedisDb.Expire("GeoKey1", 5);
var getGeo = RedisDb.GeoRadiusByMemberWithDistAndCoord("GeoKey1", "myplace", 10 * 1000);
foreach (var item in getGeo)
{
WriteColorLine($"Name:{item.member},经度:{item.longitude},纬度:{item.latitude},距离:{item.dist}", ConsoleColor.White);
}
}
