/// <summary>
/// 是否存在key
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public bool Exists(string key)
{
try
{
if (AllKeys.Contains(key))
{
return(true);
}
if (pool != null)
{
using var r = pool.GetClient();
if (r != null)
{
r.SendTimeout = 1000;
return(r.ContainsKey(key));
}
}
}
catch
{
throw new Exception(string.Format("{0}:{1}发生异常!{2}", "cache", "是否存在", key));
}
return(false);
}
public void AddMissing(string key, string value)
{
if (AllKeys.Contains(key))
{
return;
}
Add(key, value);
}
public async Task SaveAllAsync()
{
var db = _services.CreateScope().ServiceProvider.GetRequiredService <IKeyValueDbContext>();
var fromDb = db.KeyValues.ToList();
var adding = Items.Where(x => !fromDb.Any(d => x.Key == d.Key)).ToList();
fromDb.RemoveAll(x => !AllKeys.Contains(x.Key));
fromDb.ForEach(x => x.Value = Get(x.Key));
db.KeyValues.AddRange(adding);
await db.Normalize().SaveChangesAsync();
}
public string this[string name]
{
get
{
if (AllKeys.Contains(name))
{
var str = config.GetSection(sectionName)[name];//第一种方法
return(str);
}
return("");
}
}
/// <summary>
/// Get all of the data in the requested column of the table.
/// if an invalid header is given, throws an ArgumentOutOfRangeException.
/// </summary>
/// <param name="header">Column Header from this table.</param>
/// <returns></returns>
public List <String> GetColumn(String header)
{
if (!AllKeys.Contains(header))
{
throw new ArgumentOutOfRangeException("Invalid Header Name");
}
List <String> column = new List <string>();
foreach (Dictionary <String, String> row in Data)
{
if (!row.ContainsKey(header))
{
column.Add("");
}
else
{
column.Add(row[header]);
}
}
return(column);
}
public ConnectionStringSettings this[string name]
{
get
{
if (AllKeys.Contains(name))
{
ConnectionStringSettings rev = new ConnectionStringSettings();
var item = config.GetSection(sectionName).GetSection(name);//第一种方法
foreach (var kv in item.AsEnumerable())
{
if (kv.Key == $"ConnectionStrings:{name}:ConnectionString")
{
rev.ConnectionString = kv.Value;
}
if (kv.Key == $"ConnectionStrings:{name}:ProviderName")
{
rev.ProviderName = kv.Value;
}
}
return(rev);
}
return(null);
}
}
/// <summary>
/// 删除
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public bool Delete(string key)
{
try
{
if (AllKeys.Contains(key))
{
Remove(key);
}
if (pool != null)
{
using var r = pool.GetClient();
if (r != null)
{
r.SendTimeout = 1000;
r.Remove(key);
}
}
}
catch
{
throw new Exception(string.Format("{0}:{1}发生异常!{2}", "cache", "删除", key));
}
return(true);
}